WO2017177931A1 - Text information display method and apparatus, and mobile device - Google Patents

Abstract

A text information display method and apparatus, and a mobile device. The method comprises: displaying first image data rendered with first paging text information in a display region (S101); detecting a specified page turning operation (S102); moving at least one part of the first image data out of the display region according to the page turning operation (S103); obtaining second image data rendered with second paging text information according to the page turning operation (S104); and after the first image data is moved out, moving at least one part of the second image data into the display region (S105). In the method, image data is used as a carrier of text information, direct rendering of the text information is avoided, so that the page turning response speed is increased and a stuck condition during a page turning process is avoided, thereby improving the reading smoothness.

Description

Method, device and mobile device for displaying text information

The present invention claims the priority of the Chinese patent application filed on April 13, 2016, the Chinese Patent Office, the application number is CN201610230309.9, and the invention name is "a display method, device and mobile device for text information". The content is incorporated by reference in the present application.

Technical field

The present invention relates to the technical field of computer processing, and in particular, to a method for displaying text information, a display device for text information, and a mobile device.

Background technique

With the development of science and technology, electronic devices such as mobile phones, tablet computers, and smart watches are widely used, and they are increasingly used in people's life, study, and work.

In life, study, work, etc., people often need to read news, novels, reports and other texts, making reading applications one of the commonly used applications in these electronic devices.

In the current reading application, most of the text information is directly rendered directly to the screen.

Take the Android (Android) system as an example. On a custom View, use the API (Application Programming Interface) interface drawText method to render text information.

Therefore, when page turning is performed in the reading application, when the page turning operation needs to be detected, the text information to be displayed is immediately rendered, and the response speed of the page turning is slow, especially in the process of quickly turning pages, which is easy to cause Caton, reading is not smooth.

Summary of the invention

The embodiment of the present invention provides a method, a device, and a mobile device for displaying text information, which are used to solve the problem that the page turning response speed is slow and the page turning is easy to operate.

In order to solve the above problem, the embodiment of the present application discloses a method for displaying text information, including: displaying first image data rendered with first page text information in a display area; detecting a specified page turning operation; The page turning operation moves at least part of the first image data out of the display area; acquiring second image data rendered with the second paged text information according to the page turning operation; after the first image data, at least part The second image data is moved into the display area.

Preferably, the displaying, in the display area, the first image data rendered with the first paged text information comprises: rendering the top-ranked paged text information as the first paged text information in the first image data; rendering The first image data having the first paged text information is displayed in the display area; or, the page index recorded at the end of the last display is read; the paged text information corresponding to the page index is used as the first paged text information Rendering is performed in an image data; the first image data rendered with the first paged text information is displayed in the display area.

Preferably, the page turning operation comprises a sliding operation; the step of moving at least part of the first image data out of the display area according to the page turning operation comprises: calculating a sliding direction of the sliding operation; The sliding direction moves at least part of the first image data out of the display area; the step of acquiring the second image data that is rendered with the second paged text information comprises: searching for the first paged text information according to the sliding direction Second paged text information; rendering the second paged text information in the second image data; or searching for second image data pre-rendered with second paged text information according to the sliding direction; Moving at least part of the second image data into the display area comprises: calculating a distance at which the first image data moves out of the display area; moving the second image data into the display area along the sliding direction To the distance.

Preferably, the method further comprises: rendering the third paged text information in the third image data according to the page turning operation.

Preferably, the page turning operation comprises a sliding operation, the sliding operation has a sliding direction; and the step of rendering the third paged text information in the third image data according to the page turning operation comprises: sliding according to the sliding And searching for third page text information adjacent to the second page text information; searching for third image data not having paged text information; rendering the third page text information in the third image data .

Preferably, the method further comprises: when all of the first image data are moved out of the display area, clearing the first paged text information rendered in the first image data.

Preferably, the method further comprises: reading the original text information; dividing the original text information into one or more pages of paged text information adapted to the display area.

Preferably, the step of dividing the original text information into one or more pages of paged text information adapted to the display area comprises: formatting the original text information according to at least a width of the display area; The height is divided into original page information after typesetting into one or more pages of paged text information.

The embodiment of the present application further discloses a display device for text information, including:

a first image data display module, configured to display first image data rendered with the first paged text information in the display area; a page turning operation detecting module, configured to detect the specified page turning operation; the first image data moving module, And a second image data obtaining module, configured to acquire, according to the page turning operation, a second image that is rendered with the second paged text information according to the page turning operation Data; a second image data moving module, configured to move at least part of the second image data into the display area after the first image data.

The embodiment of the present application provides a method for displaying text information, including: detecting a page turning operation; when detecting a page turning operation, moving at least part of the first image data out of the display area according to the page turning operation, the first The image data is currently displayed image data, and the first paged text information is rendered; according to the page turning operation, at least part of the second image data is moved into the display area, and the second image data is rendered with the second paged text information. And rendering the third paged text information in the third image data according to the page turning operation.

A display device for text information, comprising: a page turning operation detecting module, configured to detect a page turning operation; and a first image data moving module, configured to, when the page turning operation is detected, be at least partially first according to the page turning operation The image data is moved out of the display area, the first image data is the currently displayed image data, and the first paged text information is rendered; the second image data moving module is configured to: at least part of the second image data according to the page turning operation Moving into the display area, the second image data is rendered with second paged text information; and a third image data rendering module is configured to render the third paged text information in the third image data according to the page turning operation .

A mobile device, comprising: a memory for storing a program, the processor, configured to, by calling a program stored in the memory, perform a method comprising: displaying, in a display area, a first page text information rendered with a first page An image data; detecting a specified page turning operation; moving at least part of the first image data out of the display area according to the page turning operation; acquiring a second rendered second page text information according to the page turning operation Image data; after the first image data, at least a portion of the second image data is moved into the display area.

A mobile device comprising: a memory for storing a program, a processor, configured to execute a method comprising the steps of: detecting a page turning operation by detecting a program stored in the memory; The page turning operation moves at least part of the first image data out of the display area, the first image data is the currently displayed image data, and the first paged text information is rendered; according to the page turning operation, at least part of the second image data is to be Moving into the display area, the second image data is rendered with second paged text information; according to the page turning operation, the third paged text information is rendered in the third image data.

Embodiments of the present application include the following advantages:

The embodiment of the present application uses the first image data to render the first paged text information, the second image data to render the second paged text information, and moves the first image data and the second image data to implement the page turning operation, and uses the image data as the text. The carrier of information avoids direct rendering of text information, improves the response speed of page turning, avoids causing jams during page turning, and improves the fluency of reading.

The embodiment of the present application pre-renders the third page text information by using the third image data, so that the page can be directly displayed when the page is turned back, thereby further improving the response speed of the page turning, and the occupied memory does not cause excessive memory occupation to cause the system card. Problems, the reasonable use of memory to further improve the fluency of page turning and reading.

DRAWINGS

1 is a flow chart showing the steps of a first embodiment of a method for displaying text information according to the present application;

2A-2D are diagrams showing an example of page turning in the embodiment of the present application;

3 is a flow chart showing the steps of a second embodiment of a method for displaying text information according to the present application;

4 is a flow chart showing the steps of a third embodiment of a method for displaying text information according to the present application;

FIG. 5 is a functional block diagram of a first embodiment of a text information display apparatus according to the present application; FIG.

6 is a functional block diagram of a second embodiment of a display device for text information according to the present application;

7 is a functional block diagram of a third embodiment of a text information display device according to the present application;

FIG. 8 is a schematic structural diagram of a mobile device of the present application.

detailed description

The above described objects, features and advantages of the present application will become more apparent and understood.

Referring to FIG. 1 , a flow chart of a first embodiment of a method for displaying text information according to the present application is shown. Specifically, the method may include the following steps:

Step S101, displaying first image data rendered with first page text information in a display area;

The embodiments of the present application can be applied to various mobile devices, for example, mobile phones, tablet computers, personal digital assistants, wearable devices (such as glasses, watches, etc.), and the like, and can also be applied to various fixed devices, for example, smart televisions. , personal computers, and so on.

The operating systems of these mobile devices and fixed devices may include Android (Android), IOS, Windows Phone, Windows, etc., in which reading applications such as browsers, e-book readers, etc. may be installed to display text information for The user reads.

Applying the embodiment of the present application, the original text information (such as a certain chapter of the novel, an independent document, etc.) may be first divided into one or more pages of paged text information, and each of the paged text information may be simply referred to as a page, each Page pagination text information can be rendered in an image data such as a bitmap Bitmap.

It should be noted that the first paged text information, the second paged text information, the third paged text information, and the like belong to the paged text information, and the first image data, the second image data, the third image data, and the like belong to the image data. .

In the embodiment of the present application, the image data that is rendered with the paged text information may be displayed in a display area in the mobile device or the fixed device to display the text information for the user to read.

The display area may be full screen, or may occupy part of the screen. For example, the top, bottom, and the like of the screen of the mobile phone may retain part of the area to display information such as power, signal, chapter name, reading progress, etc., and the rest may be set as the display area. .

In general, the image data is equal to the size of the display area. Of course, the image data may be smaller than the display area, which is not limited in this embodiment of the present application.

In one case, if the user newly opens an original text message in the reading class application, the reading class application can slice the original text information into one or more pages of paged text information.

In this case, the paged text information of the top ranking (ie, the first order) may be rendered as the first page text information in the first image data;

Displaying the first image data with the first paged text information in the display area. For example, if the first image data is in the Android system and the bitmap data is bitmap bitmap, the OnDraw method of the View in Android can be rewritten. The drawBitmap method draws the bitmap Bitmap onto the View of the display area and displays it.

In another case, if the user opens a previously read original text message in the reading class application.

In this case, when the display of the paged text information ends (ie, ends reading), such as exiting the reading application or switching to another page, the paging index of the current paged text information (such as the page to which the first line of text information belongs) may be recorded. That is, the index information of a paged text message.

Because reading articles (such as novels) are usually organized according to chapters, an article includes multiple chapters. Therefore, chapters and pages can be used as pagination indexes. Of course, chapters, page numbers, and number of rows can also be used. The paging index is not limited in this embodiment of the present application.

Therefore, in the embodiment of the present application, the paging index recorded at the end of the last display can be read, the paging text information corresponding to the paging index is searched, and the paging engine information corresponding to the paging index is used as the first paging text information in the first Rendering in image data.

Displaying the first image data with the first paged text information in the display area. For example, if the first image data is in the Android system and the bitmap data is bitmap bitmap, the OnDraw method of the View in Android can be rewritten. The drawBitmap method draws the bitmap Bitmap onto the View of the display area and displays it.

It should be noted that if the chapter and the number of pages are used as the paging index, the page corresponding to the paging index is completely displayed when the next display is entered, so that the page text information of the last exit can be saved in the page that is re-entered, but not necessarily It can be guaranteed that the first line of text information at the time of exit is displayed on the first line of the current page.

In another case, if the user performs page turning in the reading class application, the first image data rendered with the first paged text information is moved to the display area for display.

Step S102, detecting a specified page turning operation;

The page turning operation may refer to an operation of viewing the previous page of the paged text information, the next page, or any existing paged text information of the non-current page.

In a specific implementation, the page turning operation may include at least one of the following:

1. Sliding operation;

In this example, you can page through the slide, such as swiping up to view the pagination text information for the next pagination, and swipe down to view the paginated text information for the previous pagination.

In a specific implementation, the mobile device or the fixed device has a touch screen, and the touch screen can detect a touch event generated by a touch on the touch screen by the user, and determine whether a sliding operation occurs according to the touch event.

Among them, the down event can indicate that the touch screen is not moved or lifted, the move event (Move) can indicate that the touch screen starts to move (or slide), and the lift event (Up) can be displayed on the touch screen. Lift up.

2, button operation;

In this example, you can turn the page by pressing a button. For example, press one of the keys (such as the up button of the volume button) to view the paged text information of the previous page, and press another button (such as the down button of the volume button). Then view the paginated text information of the next pagination. Of course, the button can also be a virtual button. For example, the user can touch the button within a specified area of the touch screen, and can think that the button is pressed once, and the side where the touch point is close to the display screen can be regarded as the page turning direction. If you touch the area near the top of the display, it is considered to be page up.

In a specific implementation, it is possible to determine whether a key operation occurs by monitoring an event of a button.

Taking the volume key as an example, if the KEYCODE_VOLUME_UP event is detected, it means that the up key of the volume key is triggered. If the KEYCODE_VOLUME_DOWN event is detected, it means that the down key of the volume key is triggered.

3. Shake operation;

In this example, you can flip the page by shaking the mobile device, such as shaking to the right to view the pagination text information of the previous pagination, and shaking to the left to view the pagination text information of the next pagination.

In a specific implementation, the mobile device has a gyroscope, and the gyroscope can measure the rotation angle of the mobile device on the X, Y, and Z components, and determine whether a shaking operation occurs by the rotation angle.

Of course, the above-mentioned page turning operation is only an example. When the embodiment of the present application is implemented, other page turning operations, such as tilting operation (page turning by tilting the mobile device), etc., may be set according to actual conditions, and the embodiment of the present application does not limit. In addition, in addition to the above-mentioned page turning operation, the person skilled in the art can also adopt other page turning operations according to actual needs, which is not limited in the embodiment of the present application.

Step S103, moving at least part of the first image data out of the display area according to the page turning operation;

In the embodiment of the present application, the first image data may be moved out of the display area according to the page turning operation to remove the first paged text information that is rendered. Specifically, how much the first image data is removed from the display area is determined according to a specific operation, and may be part or all, which is not limited in this embodiment.

In order to enable those skilled in the art to better understand the embodiments of the present application, in the present specification, the sliding operation will be described as an example of a page turning operation.

In this example, step 103 may include the following steps:

Step S11, calculating a sliding direction of the sliding operation;

Step S12, moving at least part of the first image data out of the display area along the sliding direction.

In a specific implementation, the position (coordinate information) of the touch screen can be recorded every time. If the application is in the Android system, the view of the reading application rewrites the onTouch method of the View class in Android, and the onTouch method after the rewrite can record each Touch the position of the touch screen (coordinate information).

The sliding operation is decomposed into a plurality of touch events, each of which has coordinate information, and the coordinate information of the current touch event is compared with the coordinate information coordinates of the previous touch event to determine the sliding direction.

For example, if the coordinate information is the X and Y coordinates, the Y coordinate of the current coordinate information is compared with the Y coordinate of the previous coordinate information, and if the two are subtracted to be negative, the sliding direction of the sliding operation is upward sliding, if both Subtracting to positive The sliding direction of the sliding operation is sliding downward.

If the text information is horizontally typeset as shown in FIG. 2A, the above directions are mainly read.

In an example, if the sliding direction is from top to bottom, at least part of the first image data can be moved out of the display area from top to bottom;

In another example, if the sliding direction is from bottom to top, at least part of the first image data can be moved out of the display area from bottom to top.

For example, as shown in FIG. 2B, the first image data 202 is displayed in the display area 201 (black frame portion). As shown in FIG. 2C, if the direction of the sliding operation is from bottom to top as indicated by the arrow, it is possible to At least a portion of the first image data 202 is moved upwardly out of the display area 201.

Certainly, the moving manner of the first image data is only an example. When the embodiment of the present application is implemented, the moving manner of other first image data may be set according to actual conditions. For example, if the text information is vertically typeset, the reading is mainly in the left and right direction. If the sliding direction is from left to right, at least part of the first image data is moved out of the display area from left to right, or at least part of the first image data is removed from right to left if the sliding direction is from right to left. The display area, and the like, the embodiment of the present application does not limit this. In addition, in addition to the above-mentioned manner of moving the first image data, a person skilled in the art may also adopt a manner of moving other first image data according to actual needs, which is not limited in the embodiment of the present application.

It can be understood that when the page turning operation is another operation, the page turning direction can still be determined according to the specific page turning operation, and at least part of the first image data is moved out of the display area in the page turning direction. For example, the page turning operation is a key operation, and pressing a certain key (such as the up key of the volume key) moves all the first image data out of the display area from top to bottom, and presses another key (such as the down key of the volume key). ), the first image data is completely removed from the bottom up Display area. Or, the page turning operation is a button operation, and each time the button is pressed, the first image data is moved by a preset distance. If a certain key is pressed (such as the up key of the volume key), the portion of the first image data is turned up and down. Moving out of the display area and pressing another key (such as the down key of the volume key), the first image data portion is moved out of the display area from bottom to top, and the distance of each moving part in the Y coordinate direction is a preset distance.

Step S104, acquiring second image data that is rendered with the second paged text information according to the page turning operation;

In a specific implementation, in order to ensure the consistency of reading, the content of the first paging information and the second paging information is generally coherent, that is, the previous paging or the next paging, and is performed in the second image data (such as a bitmap Bitmap). Rendering.

It should be noted that the second image data is image data other than the first image data.

Taking the sliding operation as an example, in the present example, step 104 may include the following steps:

Step S21, searching for second page text information adjacent to the first page text information according to the sliding direction;

Of course, if the page turning operation is other, such as a button operation, the second page text information adjacent to the first page text information may be searched according to the page turning direction of the page turning operation.

Step S22, rendering the second paged text information in the second image data;

In one case, if there are only two image data, that is, the first image data and the second image data are displayed in turn, after detecting the sliding operation, another page may be searched in real time according to the sliding direction thereof (ie, the second Paging text information), the rendering engine is called to render in the second image data.

In another case, if the image data is three or more, when the first page (ie, the first page text information) is displayed in the first image data, since the user's page turning intention is unknown, therefore, After detecting the sliding operation, another page (ie, the second paged text information) can be searched in real time according to its sliding direction, and the rendering engine is called to render in the second image data.

Wherein, if the text information is horizontally typeset as shown in FIG. 2A, the above directions are mainly read.

In an example, if the sliding direction is from top to bottom, the previous page of the first paged text information may be searched for as the second paged text information;

In another example, if the sliding direction is from bottom to top, the next page of the first paged text information can be looked up as the second paged text information.

For example, as shown in FIG. 2B, the first image data 202 is displayed in the display area 201 (black frame portion), as shown in FIG. 2C, if the direction of the sliding operation is from bottom to top as indicated by the arrow, The next page 203 of a paged text message 202 is used as the second paged text information.

Certainly, the manner of searching the second paged text information is only an example. When the embodiment of the present application is implemented, the manner of searching for the second page text information may be set according to actual conditions, for example, if the text information is performed. Vertical typesetting, reading is mainly in the left and right direction. If the sliding direction is from left to right, the previous page of the first paged text information can be searched as the second paged text information, or if the sliding direction is from right to left, Then, the next page of the first paged text information can be searched for as the second paged text information, and the like, which is not limited by the embodiment of the present application. In addition, in addition to the above-mentioned second-page text information search method, a person skilled in the art may also use other second page text information search methods according to actual needs, which is not limited in the embodiment of the present application.

or,

Step S23, searching for the second image data pre-rendered with the second page text information according to the sliding direction;

Of course, if the page turning operation is other, such as a button operation, the second image data pre-rendered with the second page text information may be searched according to the page turning direction of the page turning operation.

In this example, if the image data is two, it may be that when the non-first page (ie, the first page text information) is displayed in the first image data, since the user's page turning intention is known, the previous After the sliding operation is detected, another page (ie, the second page text information) may be searched in advance according to the sliding direction thereof, and then rendered in the second image data, stored in the memory, and extracted from the memory when to be displayed.

In this example, if the image data is three or more, when the non-first page (ie, the first page text information) is displayed in the first image data, since the user's page turning intention is known, After the sliding operation is detected first, another page (ie, the second page text information) can be searched in advance according to the sliding direction thereof, and is rendered in the second image data, stored in the memory, and extracted from the memory when to be displayed.

In addition, in this embodiment, if the image data is three or more, the first paged text information is displayed in the first image data, and the previous page of the first paged text information is searched in real time. The text information or the paged text information of the next page is called, and the rendering engine is respectively rendered in the two image data. Therefore, after the sliding operation is detected, the rendered second image data is displayed in accordance with the sliding direction thereof, for example, detecting a downward sliding, displaying image data in which the paged text information of the previous page is rendered, and detecting an upward sliding operation. , displaying image data for rendering paged text information with the next page.

Step S105, after the first image data, move at least part of the second image data into the display area.

In the embodiment of the present application, after the first image data is moved out of the display area, and the display area has at least part of the blank area, the second image data may be moved into the blank area according to the page turning operation to move into the second page of the rendering. Text information.

In a specific implementation, as shown in FIG. 2C, the distance Y of the first image data moving out of the display area may be calculated, and the second image data is moved into the display area (height H) to the distance Y along the sliding direction.

It should be noted that, in order to ensure the consistency of reading, the first text information and the second text information are generally continuous (the distance between the two is less than a threshold), and therefore, the first image data and the second image data are generally Continuous, moving at the same speed.

If the text information is horizontally typeset as shown in FIG. 2A, the above directions are mainly read.

The user triggers the display of another page by the sliding operation, and can calculate the starting position of another page according to the starting position of the current page, the height and the sliding direction of each page, and if the sliding direction is sliding downward, the other is The starting position of the pagination is equal to the sum of the starting position of the current pagination and the pagination height, and the sliding direction is the upward sliding, and the starting position of the other pagination is equal to the difference between the starting position of the current pagination and the pagination height, and the drawBitmap is called again. The method maps the bitmap Bitmap to the View of the display area and starts displaying the page at the beginning of another page.

If the page as shown in FIG. 2A is slid upward in the direction of the arrow as shown in FIG. 2C, the content of the next page can be displayed as shown in FIG. 2D.

The embodiment of the present application uses the first image data to render the first paged text information, the second image data to render the second paged text information, and moves the first image data and the second image data to implement the page turning operation, and uses the image data as the text. The carrier of information avoids direct rendering of text information, improves the response speed of page turning, avoids causing jams during page turning, and improves the fluency of reading.

Referring to FIG. 3, a flow chart of a second embodiment of a method for displaying text information according to the present application is shown. Specifically, the method may include the following steps:

Step S301, reading original text information;

Reading articles (such as novels) are usually organized according to chapters. The creation of articles is usually based on the concept of chapters, which means that an article usually has at least one chapter.

When the data of the article is obtained, the directory information of the article can be obtained, and then the content of the chapter is obtained according to the chapter ID in each entry in the directory as the original text information.

Of course, in addition to the chapters, the entire document can be directly read as the original text information, and the like, and the embodiment of the present application does not limit this.

Step S302, dividing the original text information into one page or multiple pages of paged text information adapted to the display area;

Due to the limited display area, it is usually not possible to display all of the original text information in the display area at one time. Therefore, for the read original text information, it is usually divided into one or more pages of paged text information according to the display area, and is displayed in a page.

In an example of the embodiment of the present application, step S302 may include the following steps:

Step S31, the original text information is typeset according to at least the width of the display area;

In step S32, the original text information after the typesetting is divided into one or more pages of paged text information according to the height of the display area.

In this example, the text information is horizontally typeset as shown in FIG. 2A.

In a specific implementation, the reading application can be configured based on a typesetting engine, which can be an underlying C++ implemented so library (unix dynamic link library, which is a binary file), and the application layer is locally called by Java Native Interface (JANI). ) the way to use.

The typesetting engine formats the content of the original text information according to the width of the display area (such as the width of the screen), and the configuration parameters such as the segment spacing, the line spacing, and the text size, that is, the position of each text of the original text information is determined.

The typesetting engine divides the original file after the typesetting by the height of the display area (such as the height of the screen minus the height of the information such as the battery for displaying the up and down time) as the height of the paged text information.

Certainly, the foregoing division manner is only an example. When implementing the embodiment of the present application, other division manners may be set according to actual conditions. For example, if the text information is vertically typeset, the original text information may be typeset according to at least the height of the display area. The original text information after the typesetting is divided into one or more pages of paged text information according to the width of the display area, and the like, which is not limited by the embodiment of the present application. In addition, in addition to the foregoing division manner, other division manners may be adopted by those skilled in the art according to actual needs, and the embodiment of the present application does not limit this.

Step S303, displaying first image data rendered with the first paged text information in the display area;

Step S304, detecting a specified page turning operation;

Step S305, moving at least part of the first image data out of the display area according to the page turning operation;

Step S306, acquiring second image data that is rendered with the second paged text information according to the page turning operation;

Step S307, after the first image data, moving at least part of the second image data into the display area;

Step S308, the third page text information is rendered in the third image data according to the page turning operation;

In the embodiment of the present application, three frames of different image data, that is, first image data, second image data, and third image data (such as a bitmap Bitmap) may be configured.

Therefore, when the second image data is displayed, the third paged text information can be rendered in advance at the third image data.

In the example where the page turning operation is a sliding operation, in this example, the sliding operation has a sliding direction, step S308 may include the following steps:

Step S41, searching for third page text information adjacent to the second page text information according to the sliding direction;

In a specific implementation, in order to ensure the consistency of reading, the content of the second paged text information and the third paged text information is generally coherent, that is, the previous page or the next page.

Of course, the page turning operation may also be other. When the page turning operation is other, the third page text information adjacent to the second page text information is searched according to the page turning direction of the page turning operation.

Step S42, searching for third image data that is not rendered with paged text information;

The image data can be recycled. To avoid using errors (such as selecting image data with paginated text information, so that the error overwrites the previously rendered paginated text information, causing the text information to display incorrectly), a sequence can be configured for each image data. No., the serial number of the image data used last time is recorded, and the content of the image data other than the serial number is empty, that is, the paged text information is not rendered.

Taking a three-frame Bitmap as an example, each Bitmap has its own serial number, for example, it can be 1, 2, or 3, respectively.

These three frames of Bitmap will be used cyclically, that is, Bitmap1→Bitmap2→Bitmap3→Bitmap1→..., after use, the last used sequence number i (i is a positive integer) will be remembered, and the content is determined to be empty according to the last used sequence number i. Image data. For example, if the serial number of the three-frame Bitmap is 0, 1, and 2, respectively, since the current display area exhibits at most two Bitmaps, the content of the (i+1)%3 frame Bitmap is empty when the next rendering.

Step S43, the third page text information is rendered in the third image data.

If the image data is a bitmap Bitmap, the rendering engine in the reading application can fill the bitmapped text information into the bitmap Bitmap in the form of a binary stream.

The rendered image data is passed back to the application layer, and the application layer draws the image data onto the screen.

Step S309, when all the first image data are moved out of the display area, the first paged text information rendered in the first image data is cleared.

In the embodiment of the present application, if the first image data is all moved out of the display area, the first paged text information rendered in the first image data may be cleared, so that the content of the first image data is empty, and is used for subsequent paging. Rendering of text information.

It can be understood that when the first image data is completely moved out of the display area, the first image data becomes new third image data, and the original second image data when being removed becomes new first image data displayed in the display area. The original third image data at the time of removal becomes the new second image data.

In practical applications, if the user turns the page, a portion of one frame of image data and a portion of another frame of image data are simultaneously displayed on the screen, so at least two frames of image data are required.

In order to improve the fluency of page turning and reading, you can create at least three frames of image data, one of which is the number of images. According to the preloading, the rendering engine renders one frame of image data (such as Bitmap) and the memory occupied by about 2M. The memory occupied by the three frames of image data is about 6M, which is currently occupied by the default application in the Android system. The maximum memory is 16M, and the reader (the module that renders image data) is the core module of the reading application. The 6M memory does not have a significant impact on performance.

The time to render a page is about 20ms. The reading application will turn the page content of the reader according to the data of the page-turning operation triggered by the user (such as the data of the sliding operation) (moving as above).

Taking three frames of image data as an example, in general, when all Nth (N is a positive integer) frame image data is displayed in the display area, the N+1th frame image data has been pre-rendered, and the N+2 frame image data is pre-rendered. Still not rendered.

When the N+1th frame image data starts to be displayed (that is, part of the Nth frame image data and part of the N+1th frame image data are simultaneously displayed), the asynchronous thread is started to render the N+2th frame image data.

When all the N+1th frame image data is displayed in the display area, that is, the Nth frame image data exits the screen (the N+2 frame image data has been rendered), and the Nth frame image data that has been exited is subjected to text information. The clearing is then used to render the N+3 frame image data (if there are only 3 frames of image data, the N+3 frame image data is the same as the Nth frame image data, and if there are more than 3 frames of image data, Then, the N+3th frame image data may be different from the Nth frame image data).

In some cases, such as when the first reading of the reading application, the image data of the Nth frame is displayed, so in the first page turning operation, the image data of the N+1th frame is immediately loaded according to the page turning operation, and then the Nth is preloaded at the same time. +2 frames of image data.

In order to protect the stability of reading applications, the maximum speed of page turning is generally limited to prevent the page turning speed from being too fast in an abnormal situation. In this case, the sliding of more than one page within 20ms is basically not occurred. To ensure the smoothness of page turning.

Of course, if the performance of the mobile device, the fixed device's memory, and the CPU (Central Processing Unit) is high enough, you can configure more than three frames of different image data, at least two pages can be preloaded, at a faster page turning speed. Pre-rendering is also guaranteed to further improve the fluency of page turning and reading.

It can be seen that a page and at least three frames of image data can achieve a balance of performance and fluency.

The embodiment of the present application pre-renders the third page text information by using the third image data, so that the page can be directly displayed when the page is turned back, thereby further improving the response speed of the page turning, and the occupied memory does not cause excessive memory occupation to cause the system card. Problems, the reasonable use of memory to further improve the fluency of page turning and reading.

Referring to FIG. 4, a flow chart of the third embodiment of the method for displaying text information of the present application is shown. Specifically, the method may include the following steps:

Step S410: detecting a page turning operation.

In the display process, the user-triggered page turning operation is detected in real time.

Step S420: When the page turning operation is detected, at least part of the first image data is moved out of the display area according to the page turning operation, and the first image data is the currently displayed image data, and the first paged text information is rendered.

Step S430: Move at least part of the second image data into the display area according to the page turning operation, and the second image data is rendered with the second page text information.

In this embodiment, all of the currently displayed in the display area may be the first image data in which the first paged text information is rendered.

Wherein, the top-ranked paged text information may be rendered as the first paged text information in the first image data; and the first image data rendered with the first paged text information is displayed in the display area.

Or, reading the page index recorded at the end of the last display; and displaying the page text information corresponding to the page index as the first page text information in the first image data; and rendering the first page text information An image data is displayed in the display area.

Of course, it is also possible to display a portion of the first image data and a portion of the second image data that is rendered with the second paged text information.

If the display area is currently displayed as the first image data, when the page turning operation is detected, before at least part of the second image data is moved into the display area, the page turning direction may be searched according to the page turning operation. The second page text information adjacent to the first page text information; and the second page text information is rendered in the second image data. Alternatively, before moving at least part of the second image data into the display area, the second image data pre-rendered with the second paged text information is searched according to the page turning direction of the page turning operation.

And then moving at least part of the first image data out of the display area according to the page turning direction of the page turning operation, and moving at least part of the second image data into the display area.

If the display area is currently displayed as the portion of the first image data and the portion of the second image data in which the second paged text information is rendered, at least part of the first image data is directly moved out of the display area according to the page turning direction of the page turning operation. And moving at least part of the second image data into the display area.

Wherein, when the display area displays two pages of paged text information, the first paged text information is the paged text information of the end direction of the page turning direction, and the second paged text information is the paged text information of the starting direction of the page turning. For example, the page turning operation is a sliding operation, and if the sliding direction is from top to bottom, in the two-page paged text information, the next paged text information is the first paged text information, and the previous paged text information is the second paged text information. . If the sliding direction is from bottom to top, the previous pagination text information is the first pagination text information, and the next pagination text is the second pagination text information.

Step S440: The third page text information is rendered in the third image data according to the page turning operation.

Specifically, the third page text information is first searched according to the page turning direction of the page turning operation. In this embodiment, the third paged text information is paged text information adjacent to the second paged text information.

Further, in this embodiment, the method further includes: when all the first image data are moved out of the display area, clearing the first paged text information rendered in the first image data, and therefore, according to the The page turning operation, in the step of rendering the third page text information in the third image data, may include: searching for the third page adjacent to the second page text information according to the page turning direction of the page turning operation Text information; the third page text information is rendered in the third image data by using image data that moves out of the display area as third image data. Wherein, if the third image data has been emptied, the third image data that is not rendered with the paged text information may be searched for rendering of the third paged text information.

In addition, if there is no third image data in which the paged text information is not rendered, that is, the three frames of image data are rendered with the paged text information. For example, a portion of the first image data and a portion of the second image data are displayed in the current display area, at which time the third image data has been rendered. If the detected page turning operation is opposite to the previous page turning operation, the third page text information that should be rendered in the third image data is changed at this time, for example, the page turning operation is page turning from bottom to top, and the last page turning The page operation is page turning from top to bottom. In the last page turning operation, the third page text information rendered in the third image data is the page text information adjacent to the page text information of the previous page, and the page turning operation is performed. Unlike the previous page turning operation, the third paged text information rendered in the third image data should be paged text information adjacent to the paged page text information of the next page. At this time, the third page text information is rendered with the image data not displayed in the display area or removed from the display area as the third image data.

In addition, if there is no third image data that is not rendered with the paged text information, and the detected page turning operation is the same as the previous page turning operation, the paged text information that needs to be rendered in the third image data does not change. The rendering of the paginated text information can no longer be performed.

It should be noted that, for the method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the embodiments of the present application are not limited by the described action sequence, because In accordance with embodiments of the present application, certain steps may be performed in other sequences or concurrently. In the following, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required in the embodiments of the present application.

Referring to FIG. 5, a functional block diagram of a first embodiment of a device for displaying a text information of the present application is shown. Specifically, the following modules may be included:

The first image data display module 401 is configured to display, in the display area, the first paged text information a first image data; a page turning operation detecting module 402, configured to detect a specified page turning operation; a first image data moving module 403, configured to remove at least a portion of the first image data according to the page turning operation a display area; a second image data obtaining module 404, configured to acquire second image data that is rendered with the second paged text information according to the page turning operation; and a second image data moving module 405, configured to: After the data, at least a portion of the second image data is moved into the display area.

In an embodiment of the present application, the first image data display module 401 may include the following sub-modules:

a first rendering sub-module, configured to render the first-ranked paginated text information as the first paginated text information in the first image data; the first display sub-module, configured to render the first image with the first paginated text information The data is displayed in the display area; or,

a paging index sub-module, configured to read a paging index recorded at the end of the last display; a second rendering sub-module, configured to use the paging text information corresponding to the paging index as the first paging text information in the first image data a second display sub-module for displaying the first image data rendered with the first paged text information in the display area.

In an example of the embodiment of the present application, the page turning operation includes a sliding operation; the first image data moving module 403 may include a sub-module: a sliding direction calculating sub-module for calculating a sliding direction of the sliding operation Removing the sub-module for moving at least part of the first image data out of the display area along the sliding direction; the second image data obtaining module 404 may include the following sub-module: a first search sub-module for The sliding direction is used to search for the second paged text information adjacent to the first paged text information; the third rendering sub-module is configured to render the second paged text information in the second image data; or a second search sub-module, configured to search for second image data pre-rendered with second page text information according to the sliding direction; the second display sub-module 405 may include the following sub-module: a distance calculation sub-module for calculating Moving the first image data out of the display area; moving into a sub-module for using the second image data along the sliding direction Into the distance to the display area.

Referring to FIG. 6, a functional block diagram of a second embodiment of a display device apparatus for text information according to the present application is shown. Specifically, the module may include a module: an original text information reading module 501 for reading original text information; The text information dividing module 502 is configured to divide the original text information into one or more pages of paged text information adapted to the display area; the first image data display module 503 is configured to display the first in the display area. The first image data of the paged text information; the page turning operation detecting module 504 is configured to detect the specified page turning operation; the first image data moving module 505 is configured to: at least part of the first image according to the page turning operation The data is moved out of the display area; the second image data obtaining module 506 is configured to acquire second image data that is rendered with the second paged text information according to the page turning operation; the second image data moving module 507, For moving at least part of the second image data into the display area after the first image data; and a third image data rendering module 508, configured to: third page text information according to the page turning operation The rendering is performed in the three image data; the first image data clearing module 509 is configured to clear the first paged text information rendered in the first image data when all of the first image data is moved out of the display area.

In an example of the embodiment of the present application, the page turning operation includes a sliding operation, and the sliding operation has a sliding direction;

The third image data rendering module 508 may include the following sub-module: a third search sub-module, configured to search for third-page text information adjacent to the second page text information according to the sliding direction; a module for finding third image data that is not rendered with paged text information, and a fourth rendering sub-module for rendering the third paged text information in the third image data.

In an example of the embodiment of the present application, the original text information dividing module 502 may include the following sub-module: a layout sub-module, configured to type the original text information according to at least a width of the display area; The original text information after the typesetting is divided into one or more pages of paged text information according to the height of the display area.

Referring to FIG. 7, a functional block diagram of a third embodiment of a display device apparatus for text information according to the present application is shown. Specifically, the following modules may be included:

The page turning operation detecting module 601 is configured to detect a page turning operation; the first image data moving module 602 is configured to: when the page turning operation is detected, move at least part of the first image data out of the display area according to the page turning operation, The first image data is the currently displayed image data, and the first page text information is rendered; the second image data moving module 603 is configured to move at least part of the second image data into the display area according to the page turning operation. The second image data rendering module has a second page text information, and the third image data rendering module 604 is configured to render the third page text information in the third image data according to the page turning operation.

Further, in this embodiment, the method further includes: a first image data rendering module, configured to render the top-ranked paged text information as the first paged text information in the first image data; the first image data display module, The first image data rendered with the first paged text information is displayed in the display area.

Further, in this embodiment, the index reading module is configured to read the paging index recorded at the end of the last display; the first image rendering module is configured to use the paging text information corresponding to the paging index as the first The paged text information is rendered in the first image data; the first image display module is configured to display the first image data rendered with the first paged text information in the display area.

In addition, the embodiment may further include: a second page searching module, configured to search for the second page text information adjacent to the first page text information according to the page turning direction of the page turning operation; the second image rendering And a module, configured to render the second paged text information in the second image data.

In addition, in this embodiment, the second image search module may be configured to search for the second image data pre-rendered with the second paged text information according to the page turning direction of the page turning operation. The third image data rendering module 604 includes: a third paged text search unit configured to search for the third paged text information according to the page turning direction of the page turning operation; and a third image data rendering unit configured to use the third paged page Text information is rendered in the third image data.

Further, in this embodiment, the first image clearing module may be configured to: when all the first image data are moved out of the display area, clear the first page text information rendered in the first image data . The third image data rendering module 604 may further include: a third page searching unit, configured to search for third page text information adjacent to the second page text information according to the page turning direction of the page turning operation; the third image a rendering unit, configured to render the third paged text information in the third image data by using image data that moves out of the display area as third image data.

Referring to FIG. 8, a schematic structural diagram of a mobile device 700 of the present application is shown. The mobile device 700 has a display screen 701, such as a touch screen, and has a memory 702 for storing a program, and a processor 703 for calling a program stored in the memory, performing a method comprising: displaying first image data rendered with first paged text information in a display area; detecting a specified page turning operation; according to the page turning operation, at least part of the Transmitting the first image data out of the display area; acquiring second image data rendered with the second paged text information according to the page turning operation; after the first image data, moving at least part of the second image data into The display area.

In addition, the processor 703 may also perform a method including the following steps: detecting a page turning operation; when detecting a page turning operation, moving at least part of the first image data out of the display area according to the page turning operation, the first image data being The currently displayed image data is rendered with first paged text information; according to the page turning operation, at least part of the second image data is moved into the display area, and the second image data is rendered with the second paged text information; The page turning operation is performed to render the third page text information in the third image data.

For the device and the mobile device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments can be referred to each other.

Those skilled in the art will appreciate that embodiments of the embodiments of the present application can be provided as a method, apparatus, or computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, embodiments of the present application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

In a typical configuration, the computer device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory. The memory may include non-persistent memory, random access memory (RAM), and/or non-volatile memory in a computer readable medium, such as read only memory (ROM) or flash memory. Memory is an example of a computer readable medium. Computer readable media includes both permanent and non-persistent, removable and non-removable media. Information storage can be implemented by any method or technology. The information can be computer readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory. (ROM), electrically erasable programmable read only memory (EEPROM), flash memory or other memory technology, compact disk read only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, Magnetic tape cartridges, magnetic tape storage or other magnetic storage devices or any other non-transportable media can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include non-persistent computer readable media, such as modulated data signals and carrier waves.

Embodiments of the present application are described with reference to flowcharts and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing terminal device to produce a machine such that instructions are executed by a processor of a computer or other programmable data processing terminal device Means are provided for implementing the functions specified in one or more of the flow or in one or more blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The instruction device implements the functions specified in one or more blocks of the flowchart or in a flow or block of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device such that a series of operational steps are performed on the computer or other programmable terminal device to produce computer-implemented processing, such that the computer or other programmable terminal device The instructions executed above provide steps for implementing the functions specified in one or more blocks of the flowchart or in a block or blocks of the flowchart.

While a preferred embodiment of the embodiments of the present application has been described, those skilled in the art can make further changes and modifications to the embodiments once they are aware of the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including all the modifications and the modifications

Finally, it should also be noted that in this paper, relational terms such as first and second are used only. To distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order. Furthermore, the terms "comprises" or "comprising" or "comprising" or any other variations are intended to encompass a non-exclusive inclusion, such that a process, method, article, or terminal device that includes a plurality of elements includes not only those elements but also Other elements that are included, or include elements inherent to such a process, method, article, or terminal device. An element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that comprises the element, without further limitation.

The method for text information provided by the present application, a device for text information, and a mobile device are described in detail. The principles and implementation manners of the present application are described in the specific examples. The description of the examples is only for helping to understand the method of the present application and its core ideas; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in specific embodiments and application scopes. The description is not to be construed as limiting the present application.

Claims (19)

1. A method for displaying text information, comprising:

   Displaying first image data rendered with first paged text information in a display area;

   The specified page turning operation is detected;

   And moving at least part of the first image data out of the display area according to the page turning operation;

   Obtaining second image data rendered with the second paged text information according to the page turning operation;

   After the first image data, at least a portion of the second image data is moved into the display area.
2. The method according to claim 1, wherein the displaying the first image data rendered with the first paged text information in the display area comprises:

   Sorting the top-ranked paginated text information as the first paginated text information in the first image data;

   Displaying the first image data rendered with the first paged text information in the display area;

   or,

   Read the paging index recorded at the end of the last display;

   And the paged text information corresponding to the page index is rendered as the first page text information in the first image data;

   The first image data rendered with the first paged text information is displayed in the display area.
3. The method of claim 1 wherein said page turning operation comprises a sliding operation; said step of moving at least a portion of said first image data out of said display area in accordance with said page turning operation comprises:

   Calculating a sliding direction of the sliding operation;

   Moving at least part of the first image data out of the display area along the sliding direction;

   The step of acquiring the second image data that is rendered with the second paged text information includes:

   Searching, according to the sliding direction, second page text information adjacent to the first page text information; and rendering the second page text information in the second image data;

   or,

   Searching, according to the sliding direction, second image data pre-rendered with the second paged text information;

   The step of moving at least part of the second image data into the display area comprises:

   Calculating a distance at which the first image data moves out of the display area;

   The second image data is moved into the display area to the distance along the sliding direction.
4. The method of claim 1 further comprising:

   The third paged text information is rendered in the third image data according to the page turning operation.
5. The method according to claim 4, wherein said page turning operation comprises a sliding operation, said sliding operation having a sliding direction;

   The step of rendering the third page text information in the third image data according to the page turning operation comprises:

   Searching, according to the sliding direction, third page text information adjacent to the second page text information;

   Finding third image data that is not rendered with paged text information;

   The third paged text information is rendered in the third image data.
6. The method of claim 1 further comprising:

   The first paged text information rendered in the first image data is cleared when all of the first image data is moved out of the display area.
7. The method of claim 1 further comprising:

   Read the original text information;

   The original text information is divided into one or more pages of paged text information adapted to the display area.
8. The method according to claim 7, wherein the step of dividing the original text information into one or more pages of paged text information adapted to the display area comprises:

   Formatting the original text information according to at least the width of the display area;

   The original text information after the layout is divided into one or more paged text information according to the height of the display area.
9. A display device for text information, comprising:

   a first image data display module, configured to display, in the display area, first image data rendered with the first paged text information;

   a page turning operation detecting module for detecting a specified page turning operation;

   a first image data moving module, configured to move at least part of the first image data out of the display area according to the page turning operation;

   a second image data obtaining module, configured to acquire, according to the page turning operation, second image data that is rendered with second page text information;

   And a second image data moving module, configured to move at least part of the second image data into the display area after the first image data.
10. A method for displaying text information, comprising:

    Detecting page turning operations;

    When a page turning operation is detected,

    And moving at least part of the first image data out of the display area according to the page turning operation, wherein the first image data is currently displayed image data, and the first paged text information is rendered;

    And at least part of the second image data is moved into the display area according to the page turning operation, and the second image data is rendered with the second paged text information;

    The third paged text information is rendered in the third image data according to the page turning operation.
11. The method according to claim 10, wherein said detecting the page turning operation comprises:

    Sorting the top-ranked paginated text information as the first paginated text information in the first image data;

    The first image data rendered with the first paged text information is displayed in the display area.
12. The method according to claim 10, wherein said detecting the page turning operation comprises: reading a page index recorded at the end of the last display;

    And the paged text information corresponding to the page index is rendered as the first page text information in the first image data;

    The first image data rendered with the first paged text information is displayed in the display area.
13. The method of claim 10 wherein:

    Before the moving at least part of the second image data into the display area, the method further includes:

    Searching, according to the page turning direction of the page turning operation, second page text information adjacent to the first page text information;

    The second paged text information is rendered in the second image data.
14. The method of claim 10 wherein:

    Before moving the at least part of the second image data into the display area, the method further comprises: searching for the second image data pre-rendered with the second paged text information according to the page turning direction of the page turning operation.
15. The method according to claim 10, wherein the step of rendering the third paged text information in the third image data according to the page turning operation comprises:

    Searching for the third paged text information according to the page turning direction of the page turning operation;

    The third paged text information is rendered in the third image data.
16. The method of claim 10, further comprising:

    Clearing the first paged text information rendered in the first image data when all of the first image data moves out of the display area;

    The step of rendering the third page text information in the third image data according to the page turning operation includes:

    Searching for the third paged text information according to the page turning direction of the page turning operation;

    The third paged text information is rendered in the third image data by using image data of the display area as the third image data.
17. A display device for text information, comprising:

    a page turning operation detecting module for detecting a page turning operation;

    a first image data moving module, configured to: when the page turning operation is detected, move at least part of the first image data out of the display area according to the page turning operation, wherein the first image data is currently displayed image data, and the rendering is first Paginated text information;

    a second image data moving module, configured to move at least part of the second image data into the display area according to the page turning operation, wherein the second image data is rendered with second page text information;

    And a third image data rendering module, configured to render the third paged text information in the third image data according to the page turning operation.
18. A mobile device, comprising:

    Memory for storing programs,

    a processor, configured to, by calling a program stored in the memory, a method comprising: displaying first image data rendered with first paged text information in a display area; detecting a specified page turning operation; The page turning operation moves at least part of the first image data out of the display area; acquiring second image data rendered with the second paged text information according to the page turning operation; after the first image data, at least A portion of the second image data is moved into the display area.
19. A mobile device, comprising:

    Memory for storing programs,

    a processor, configured to perform a method including: detecting a page turning operation by calling a program stored in the memory; detecting a page turning operation, moving at least a portion of the first image data out of the display area according to the page turning operation The first image data is currently displayed image data, and the first page text information is rendered; according to the page turning operation, at least part of the second image data is moved into the display area, and the second image data is rendered. Second paged text information; according to the page turning operation, the third paged text information is rendered in the third image data.

Images