WO2020006859A1

WO2020006859A1 - Image cache cleaning method and device, terminal device and medium

Info

Publication number: WO2020006859A1
Application number: PCT/CN2018/104968
Authority: WO
Inventors: 赵远; 易鸿宾
Original assignee: 平安科技（深圳）有限公司
Priority date: 2018-07-06
Filing date: 2018-09-11
Publication date: 2020-01-09
Also published as: CN109299041A

Abstract

Provided in the present application are an image cache cleaning method and device, a terminal device and medium, which are applicable to the technical field of data processing, and the method comprises: when the total amount of the image cache is larger than a preset memory threshold value, determining the priority of each cached image on the basis of the collection mark value, the unloaded duration and the total loaded duration corresponding to the currently unloaded and undisplayed cached image, respectively; replacing a cached image with the priority lower than a preset level by a replacement image, and storing the image link corresponding to the cached image in association with the replacement image; and if the total amount of the image cache is greater than the memory threshold after the replacement operation is finished, sequentially cleaning the cached images according to an order of priority from low to high until the total amount of the image cache is less than or equal to the memory threshold. The embodiment of the invention will not carry out indiscriminate over-cleaning on the cached images as in the prior art, which greatly improves the accuracy of cleaning the cached images, and avoids the occurrence of abnormal operation of a user.

Description

Method, device, terminal equipment and medium for cleaning picture cache

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on July 6, 2018, with the application number and the invention name "A Picture Cache Cleaning Method and Terminal Device", the entire contents of which are incorporated herein by reference. in.

Technical field

The present application belongs to the technical field of data processing, and in particular, relates to a method, a device, a terminal device, and a medium for cleaning a picture cache.

Background technique

The waterfall layout is used to load and browse pictures. It is a relatively new way to browse pictures on web pages. Based on the waterfall layout, users do not need to turn pages during image browsing. Instead, they can continuously pull down the scroll bar or slide the scroll wheel. Can realize unlimited browsing of pictures in web pages. The waterfall layout is used for image browsing. While bringing convenience to users, the images browsed by the user will be cached in the memory of the terminal device. In the waterfall layout, users can browse pictures quickly. Therefore, the memory usage of the terminal device is very serious.

In the prior art, in order to ensure the normal browsing of pictures by the user and the normal operation of the browser, the picture cache is directly emptied after receiving a memory warning. This can clean up the picture cache, but for some users, The image cache to be operated will also be cleaned up together, which makes it easy for the user to operate abnormally when operating the cached image.

technical problem

In view of this, embodiments of the present application provide a picture cache cleaning method and a terminal device, so as to solve the problem that an abnormal operation situation of a user is easily caused when the picture cache is cleaned in the prior art.

Technical solutions

A first aspect of the embodiments of the present application provides a method for cleaning a picture cache, including:

When the total picture cache is greater than a preset memory threshold, the priority of each cached picture is determined based on the favorite tag value, the unloaded time, and the total loaded time corresponding to the currently unloaded and displayed cached picture, respectively. It is used to indicate whether the cached picture exists in the favorite list, the unloaded time is the time when the cached picture was most recently loaded by the terminal device and the display time is away from the current time, and the total loaded time is the cached picture being used by the Sum of the duration of the terminal device history loading display;

Using a replacement picture to replace the cache picture with a priority lower than a preset level, and storing a picture link corresponding to the cache picture with the replacement picture, and the replacement picture is determined according to a picture name corresponding to the cache picture;

If the total picture cache is greater than the memory threshold after completing the replacement operation, the cache pictures are cleaned in order from the lowest to the highest priority until the total picture cache is less than or equal to the memory threshold.

A second aspect of the embodiments of the present application provides a picture cache cleaning device, including:

The priority sorting module is configured to determine the priority of each cached picture based on the favorite tag value, the unloaded duration, and the total loaded duration of the currently unloaded displayed cached pictures when the total amount of the picture cache is greater than a preset memory threshold. Level, the favorite flag value is used to indicate whether the cached picture exists in the favorite list, the unloaded time is the time when the cached picture was last loaded by the terminal device and the display time is away from the current time, and the total loading time is A total length of time during which the cached picture is loaded and displayed by the terminal device history;

A picture replacement module, configured to replace the cache picture with a priority lower than a preset level by using a replacement picture, and store a picture link corresponding to the cache picture with the replacement picture, and the replacement picture is based on the cache picture The corresponding picture name is determined;

A multi-level cleaning module is used to clean up the cached pictures in order from the lowest to the highest priority if the total amount of the picture cache is greater than the memory threshold after the replacement operation is completed, until the total amount of the picture cache is less than Or equal to the memory threshold.

A third aspect of the embodiments of the present application provides a terminal device including a memory and a processor. The memory stores computer-readable instructions executable on the processor, and the processor executes the computer-readable instructions. The following steps are implemented when reading instructions:

A fourth aspect of the embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores computer-readable instructions, and is characterized in that the computer-readable instructions are implemented when executed by at least one processor. The following steps:

Beneficial effect

In the embodiment of the present application, a multi-level cleaning strategy is adopted to clean up the cached images that are not loaded and displayed, and after each cleanup is completed, it is timely detected whether the cached image takes up too much memory and stops in time when the occupied memory does not reach the memory threshold. The cleaning of the cached pictures is implemented to timely and effectively clean up the cached pictures that are not loaded and displayed, and does not clean up the cached pictures currently browsed by the user, ensuring the normal operation of the user. Specifically, first, according to the user ’s operation on the cached picture and the unloaded duration and total loading time of the cached picture, the currently unloaded displayed cached picture is prioritized, and the lowest-priority picture is subjected to a smaller size. Picture replacement, which saves the storage of cached pictures of low importance to users, and at the same time guarantees that when viewing pictures in waterfall layout, there will be no picture vacancies and no displacement of pictures. The cached picture is replaced, so that when the user needs to browse the cleaned picture and other operations, the related information and link of the cleaned picture can be obtained in a timely and effective manner, thereby ensuring that the user can normally perform picture related operations while cleaning. Finally, the unloaded cached images are cleaned layer by layer according to the priority order, and after cleaning, it is judged in time whether the cleaning target is reached, so that the embodiment of the present application does not perform indiscriminate over-cleaning of cached images as in the prior art. , Which greatly improves the accuracy of clearing cached images and avoids the occurrence of abnormal user operations.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present application. For some embodiments, for those of ordinary skill in the art, other drawings may be obtained based on these drawings without paying creative labor.

1 is a schematic flowchart of an image cache cleaning method provided in Embodiment 1 of the present application;

2 is a schematic flowchart of an image cache cleaning method provided in Embodiment 2 of the present application;

3 is a schematic flowchart of an image cache cleaning method provided in Embodiment 3 of the present application;

4 is a schematic flowchart of an image cache cleaning method provided in Embodiment 4 of the present application;

5 is a schematic structural diagram of a picture cache cleaning device provided in Embodiment 5 of the present application;

FIG. 6 is a schematic diagram of a terminal device provided in Embodiment 6 of the present application.

Embodiments of the invention

In the following description, for the purpose of explanation rather than limitation, specific details such as a specific system structure and technology are provided in order to thoroughly understand the embodiments of the present application. However, it should be clear to a person skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary details.

In order to explain the technical solution described in this application, the following description is made through specific embodiments.

FIG. 1 shows an implementation flowchart of a method for cleaning a picture cache provided in Embodiment 1 of the present application, which is detailed as follows:

S101. When the total picture cache is larger than a preset memory threshold, the priority of each cached picture is determined based on the favorite tag value, the unloaded duration, and the total loaded duration of the currently unloaded and displayed cached picture respectively. The favorite tag value is used for Indicates whether the cached picture exists in the favorites list. The unloaded time is the time when the cached picture was last loaded by the terminal device. The total display time is the sum of the length of the cached picture displayed by the terminal device ’s history.

When the memory occupied by the cached picture is too large, the cached picture is cleared to ensure that the user can browse the picture normally. Because the importance of different cached pictures to users may vary greatly, some may be very important to users, and some may not have much effect on users. Therefore, if all cached pictures are directly made according to the existing technology, there is no difference. Cleaning up will cause the user's important pictures to be mistakenly cleaned up together, thus making the normal operation of the user vulnerable. Therefore, in order to achieve accurate cleaning of cached images to avoid the impact of the cleaning of cached images on the normal operations of users, in the embodiment of the present application, the importance of each cached image to the user is identified and prioritized, and then based on the priority Perform subsequent processing operations sequentially.

Among them, considering that when cached pictures are more important to people, people tend to mark collections as they browse cached pictures. At the same time, the length and frequency of browsing and display of cached pictures that are more like are also significantly higher than Other cached pictures. Therefore, in order to evaluate the importance of the cached picture to the user, in the embodiment of the present application, the three factors of the bookmark value corresponding to the cached picture, the unloaded time and the total loaded time are combined to determine the importance of each cached picture to the user. Degree of identification and prioritization and cleanup. The specific method of prioritizing according to the bookmark value, the unloaded time, and the total loaded time is not limited here, and can be set by a technician according to requirements, including but not limited to the method as in the second embodiment of the present application. .

The specific value of the memory threshold can be set by a technician based on the actual memory of the terminal device or the actual available memory allocated by the terminal device for the application. However, the memory threshold should be less than or equal to the memory threshold corresponding to the memory warning. Effective cleaning of cached images is guaranteed.

S102. Use a replacement picture to replace a cache picture with a priority lower than a preset level, and store a link to the picture corresponding to the cache picture with the replacement picture. The replacement picture is determined according to the picture name corresponding to the cache picture.

After determining the priority order corresponding to each cached picture, cleaning up the cached picture is started. In the embodiment of the present application, some cached pictures with a lower priority are first cleaned first. Because the lower priority means that these cached pictures are less important to the user, the probability that the user operates the cached pictures again is also Relatively small, so cleaning these cached images first can minimize the possibility of affecting the normal operation of the user and prevent the occurrence of abnormal operation by the user. The specific priority level corresponding to the preset level can be set by a technician according to the actual situation.

Among them, considering that each picture in the waterfall layout is closely connected, if the cached picture is directly deleted when the cached picture is cleaned up, it will make the picture position vacant in the layout, which will make the picture in the layout Displacement occurs, and the displacement will cause the user to constantly change the picture position when browsing the picture, which will prevent the user from performing normal operations such as picture browsing. Therefore, in order to ensure that the user can browse the pictures normally when the cached pictures are cleaned up, the embodiment of the present application uses a picture replacement method to replace the cached pictures with the replacement pictures, so that the corresponding positions of the cleaned up cached pictures still remain. The replacement picture exists, and there will be no vacancy and displacement of the picture.

In the embodiment of the present application, after the cached picture is replaced, a corresponding replacement picture will appear at the original position of the cached picture. Considering that the user is likely to pull up or down the scroll bar or the scroll wheel to browse the picture in the actual situation. Browse to the replacement picture. At this time, if the replacement picture does not contain any information about the original cached picture, the user will not be able to obtain any information about the original cached picture normally, so that the user cannot perform any operation on the original cached picture. In order to ensure the user's normal browsing and other operations on the replacement picture, when the replacement picture is generated, the related information of the original cached picture will be recorded, such as the picture name of the original cached picture or the keyword in the picture name. The record is displayed in the replacement picture, so that when the user sees the replacement picture, the user can know the picture name of the corresponding original cache picture, and at the same time, the picture link of the local cache or network picture corresponding to the original cache picture and the replacement picture management Storage, so that the user can not only know the relevant information of the original cached picture corresponding to the replacement picture, but also further obtain its corresponding picture file to meet the user's further operation requirements for the picture file to ensure that the cached picture is cleaned up The user's normal operation of the cached picture.

It should be noted that although the specific generation method of the replacement picture is not limited in the embodiment of the present application, it can be known from the above description that the replacement picture also has the advantages of saving memory, providing information about the original cached picture, and guarantee in the embodiment of the present application. The user's picture does not appear to have effects such as picture displacement, that is, the replacement picture generated in the embodiment of the present application should have at least the following characteristics: 1. The replacement picture occupies less memory than the original cache picture, 2. The replacement picture contains Information about the original cached image. 3. There will be no picture gaps and displacements in the waterfall layout picture replacement after replacing with the replacement image. Therefore, when selecting or setting the replacement image generation method, you must ensure that the generated The replacement picture can at least meet the above three feature requirements at the same time.

As an embodiment of the present application, preferably, in order to ensure that the replacement picture simultaneously meets the above three characteristic requirements, when generating a corresponding replacement picture for the original cache picture, the embodiment of the present application first reads the resolution of the original cache picture , The thumbnail size in the waterfall layout and the corresponding picture name or keyword in the picture name, the regenerated size is the same as the thumbnail size of the original cached picture in the waterfall layout, but the resolution is smaller than the original cached picture The blank replacement picture with the resolution, and finally the picture name of the original cache picture or the keyword words in the picture name are filled into the blank replacement picture to obtain the final original cache picture and generate a corresponding replacement picture. Because the size of the thumbnails in the actual application is equal to the original size of the original cached picture and the resolution of the replacement picture is smaller, the file size of the generated replacement picture must be smaller than the corresponding original cached picture, that is, it takes up less memory. The preview display in the waterfall layout is displayed in thumbnails, so it is guaranteed that after the replacement image replaces the original cached image, the position and size occupied by each replacement image in the waterfall layout image browsing are the same as the original cached image. Exactly the same, so there will be no gaps or displacements in the picture. The specific resolution of the initial picture can be set by the technicians, for example, it can be set to a lower fixed value, or set to n% of the original cached picture resolution, n is less than 100, and so on.

S103. If the total picture cache is larger than the memory threshold after the replacement operation is completed, the cache pictures are cleaned up in order from the lowest to the highest priority until the total picture cache is less than or equal to the memory threshold.

If the memory occupied by the cached picture is still too large after the picture replacement is completed, it means that the cached picture needs further cleaning. Because the higher the priority level, the more important the cached picture is to the user. In the embodiment of the present application, in order to minimize the impact of the clearing of the cached picture on the normal operation of the user, the less important to the user will be cleared first. Cache pictures, and after each time a single priority cache picture is cleaned, check whether the occupied memory of the cache picture meets the requirements of the memory threshold. If it is satisfied, stop cleaning the cache picture. If it is not satisfied, continue to the higher one. High-priority cache image cleaning.

As an embodiment of the present application, after S102, the method further includes: if the total picture cache is not greater than the memory threshold after completing the replacement operation, stopping the cleaning of the cache picture.

In order to avoid as much as possible the impact of clearing the cached picture on the user's normal picture operations, in the embodiment of the present application, only the cached picture that is not loaded and displayed is cleaned up, and the cached picture that the user is currently loading and displaying is not cleaned up. Among them, a multi-level cleaning strategy is adopted to clean the cached images that are not loaded and displayed. After each cleaning is completed, it is timely detected whether the cached image takes up too much memory. When the occupied memory does not reach the memory threshold, the cached image is stopped in time. In this way, the cached pictures that are not loaded and displayed are timely and effectively cleaned up, and the cached pictures currently browsed by the user are not cleaned up in any way, which guarantees the normal operation of the user. Specifically, first, according to the user ’s operation on the cached picture and the unloaded duration and total loading time of the cached picture, the currently unloaded displayed cached picture is prioritized, and the lowest-priority picture is subjected to a smaller size. Picture replacement, which saves the storage of cached pictures of low importance to users, and at the same time guarantees that when viewing pictures in waterfall layout, there will be no picture vacancies and no displacement of pictures. The cached picture is replaced, so that when the user needs to browse the cleaned picture and other operations, the related information and link of the cleaned picture can be obtained in a timely and effective manner, thereby ensuring that the user can normally perform picture related operations while cleaning. Finally, the unloaded cached images are cleaned layer by layer according to the priority order, and after cleaning, it is judged in time whether the cleaning target is reached, so that the embodiment of the present application does not perform indiscriminate over-cleaning of cached images as in the prior art. , Which greatly improves the accuracy of clearing cached images and avoids the occurrence of abnormal user operations.

As a specific implementation for prioritizing cached pictures, as shown in FIG. 2, the second embodiment of the present application includes:

S201: Set the cached pictures existing in the favorite list as the first priority, and determine whether the corresponding unloaded duration corresponding to the cached pictures that do not exist in the favorite list is greater than a preset first duration threshold, and whether the corresponding total loaded duration is greater than The preset second duration threshold.

In actual situations, when a user bookmarks a cached picture, it means that the cached picture is very important to the user. Therefore, in order to prevent the very important cached pictures from being cleaned up at the beginning, causing the cached picture to be important The error clearing is set in the embodiment of the present application as the cache image with the highest priority in the final processing.

At the same time, for cached pictures that have not been collected, the embodiment of the present application further classifies the unloaded cached pictures according to the unloaded time and the total loaded time to determine the corresponding priority.

S202. Set the cache picture that does not exist in the favorite list and the corresponding unloaded duration is not greater than the first duration threshold to the second priority.

In practice, due to the special nature of the waterfall layout, users are very likely to pull up or down the scroll bar or scroll wheel to browse the pictures. At this time, the time for unloading is small (that is, the time off the display interface is shorter, and the user ’s current browsing operation is shorter. For cached pictures, the cached pictures are more likely to be displayed and browsed again. If these pictures are set as the priority to be cleaned up, it will cause inconvenience when users browse pictures and other operations. Therefore, in order to ensure the user's normal browsing of the cached picture as much as possible, the embodiment of the present application sets the cached picture with a small unloaded time as the second priority picture to be processed later.

S203. Set the cache picture that does not exist in the favorite list and has a corresponding unloaded duration that is longer than the first duration threshold and a corresponding total loaded duration that is longer than the second duration threshold as the third priority.

S204. Set the cache picture that does not exist in the favorite list and has a corresponding unloaded duration that is longer than the first duration threshold and a corresponding total loaded duration that is not longer than the second duration threshold as the fourth priority.

Among them, the priority levels of the first priority, the second priority, the third priority, and the fourth priority are decreased in order.

When the unloading time is long, it means that the cached picture is far away from the cached picture of the user's current browsing operation. Therefore, the cleaning of these pictures has a relatively small impact on the normal operation of the user. In order to refine the priority of each cached picture to improve the effect of level-by-level cleaning, the embodiment of the present application further prioritizes cached pictures with a long unloaded duration. For cached pictures with a long total load time, users have a longer time to browse them. Therefore, they are more important than cached pictures with a long total load time. Therefore, in the embodiment of the present application, the The cached picture is set to a third priority with a higher priority, and the cached picture with a total load duration is set to a fourth priority with a lower priority to ensure effective cleaning of the cached pictures and normal operations of the user.

The specific size of the threshold in the embodiment of the present application can be set by a technician according to the actual situation.

As a specific implementation for cleaning pictures with different priorities, as shown in FIG. 3, the third embodiment of the present application includes:

S1031. Based on the image compression rate corresponding to each priority, the cached pictures are compressed in order from the lowest to the highest priority until the total picture cache is less than or equal to the memory threshold, where the size of the picture compression rate is negatively related to the priority. .

Although the replacement picture contains some related information of the original cached picture and the image link, which can guarantee the user's related operations on the original cached picture to a certain extent, in reality, because the replacement picture is not the original cached picture, When browsing pictures and other operations, it still affects users to some extent. Therefore, in order to ensure the effective cleaning and ensure the normal operation of the user, the embodiment of this application will further compress the remaining cached pictures after the replacement of the low-priority cached pictures. The rate is reduced, and the user's browsing and other operations have less impact, thereby ensuring the user's normal operation of the cached picture as much as possible.

Among them, the size of the picture compression rate directly determines the size of the releasable memory in the embodiment of the present application. The larger the picture compression rate is, the larger the released memory is and the better the cleaning effect is, but on the other hand, The larger the picture compression ratio, the greater the impact on the quality of the cached picture, and therefore the greater the impact on the user's operation of the cached picture. Therefore, in order to achieve a better cleaning effect, at the same time, minimize the impact on the user The impact of the normal operation of cached pictures. In the embodiment of the present application, a different picture compression rate is set for each priority, and the higher the priority, the lower the corresponding picture compression rate to ensure that the impact on important cached pictures is reduced. Minimize the impact on the user's cached image operations to a minimum. The specific value of the picture compression ratio can be set by a technician according to actual needs.

As the fourth embodiment of the present application, as shown in FIG. 4, in consideration of the requirement that compression does not necessarily reduce the memory occupied by cached images to a memory threshold, the embodiment of the present application further performs a process on the cached images on the basis of compression. Further processing to ensure the effective cleaning of the cached picture, to ensure the normal operation of the user and the normal operation of the browser, including:

S1032, if the total amount of compressed picture cache is greater than the memory threshold, the compressed cache picture is cleaned up in order from the lowest to the highest priority.

The method for cleaning each compressed cache picture is not limited here, and can be specifically set by a technician.

As a specific implementation of cleaning up the compressed cache image, it includes:

Use the replacement picture to replace the compressed cache picture with the current priority, and store the image link corresponding to the cache picture with the replacement picture.

Since the operation here is the same as that of S102, it will not be repeated here.

In the embodiment of the present application, the particularity of the waterfall layout is taken into account: the user has a great probability of viewing an image that is closer to the current browsing operation (that is, the unloaded time is shorter), and considers that the replacement of the image to the user The impact of normal operation is great, so when processing the unreplaced cached pictures in the first embodiment of the present application, compression processing is preferentially performed, and different picture compression rates are set for cached pictures of different priorities to improve cleanup during compression. Effect, and when the compression is insufficient to meet the memory threshold requirements, further compressed image replacement is performed to achieve multi-level cleaning of cached images to achieve accurate and effective cleaning of cached images. Maximize the user's normal operation of cached pictures.

Corresponding to the method of the above embodiment, FIG. 5 shows a structural block diagram of a picture cache cleaning device provided by an embodiment of the present application. For convenience of explanation, only parts related to the embodiment of the present application are shown. The image cache cleaning device illustrated in FIG. 5 may be an execution subject of the image cache cleaning method provided in the foregoing first embodiment.

Referring to FIG. 5, the picture cache cleaning device includes:

The priority sorting module 51 is configured to determine the cache image based on the favorite tag value, the unloaded duration, and the total loaded duration of the currently unloaded displayed cached pictures when the total amount of the picture cache is greater than a preset memory threshold. Priority, the favorite flag value is used to indicate whether the cached picture exists in the favorite list, the unloaded time is the time when the cached picture was last loaded by the terminal device, and the display time is away from the current time, and the total loading time The total length of time for which the cached picture is loaded and displayed by the terminal device history.

A picture replacement module 52, configured to replace the cache picture with a priority lower than a preset level by using a replacement picture, and store a picture link corresponding to the cache picture with the replacement picture, and the replacement picture is based on the cache The picture name corresponding to the picture is determined.

A multi-level cleaning module 53 is configured to clean up the cached pictures in order from low to high priority if the total amount of the picture cache is greater than the memory threshold after completing the replacement operation, until the total amount of the picture cache Is less than or equal to the memory threshold.

Further, the priority ranking module 51 includes:

Setting the cached picture existing in the favorite list as a first priority, and judging whether the unloaded duration corresponding to the cached picture not existing in the favorite list is greater than a preset first duration threshold, And whether the corresponding total loading duration is greater than a preset second duration threshold.

Setting the cache picture that does not exist in the favorite list and the corresponding unloaded duration is not greater than the first duration threshold as a second priority.

Setting the cache picture that does not exist in the favorite list and whose corresponding unloaded duration is greater than the first duration threshold and the corresponding total loaded duration is greater than the second duration threshold to a third priority .

Setting the cache picture that does not exist in the favorite list and whose corresponding unloaded duration is greater than the first duration threshold and the corresponding total loaded duration is not greater than the second duration threshold as a fourth priority level.

The priority levels of the first priority, the second priority, the third priority, and the fourth priority are sequentially decreased.

Further, the multi-stage cleaning module 53 includes:

A compression module, configured to compress the cached pictures in order from the lowest to the highest priority based on the picture compression rate corresponding to each priority until the total amount of picture cache is less than or equal to the memory threshold, The picture compression ratio is inversely related to the priority.

Further, the multi-stage cleaning module 53 includes:

A secondary cleaning module is configured to clean up the compressed cached pictures in order from the lowest to the highest priority if the total amount of the compressed picture cache is greater than the memory threshold.

Further, the secondary cleaning module includes:

Using the replacement picture to replace the compressed cache picture at the current priority, and storing a picture link corresponding to the cache picture in association with the replacement picture.

For a process in which each module in the picture cache cleaning device provided by the embodiment of the present application implements its functions, reference may be made to the description of Embodiment 1 shown in FIG. 1 above, and details are not described herein again.

It should be understood that the size of the sequence numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

It should also be understood that although the terms "first", "second", etc. are used in the text to describe various elements in some embodiments of the present application, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first contact may be named a second contact, and similarly, a second contact may be named a first contact without departing from the scope of the various described embodiments. Both the first contact and the second contact are contacts, but they are not the same contact.

FIG. 6 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 6, the terminal device 6 of this embodiment includes a processor 60 and a memory 61, and the memory 61 stores computer-readable instructions 62 that can be run on the processor 60. When the processor 60 executes the computer-readable instructions 62, steps in the embodiments of the foregoing picture cache cleaning method embodiments are implemented, for example, steps 101 to 103 shown in FIG. Alternatively, when the processor 60 executes the computer-readable instructions 62, the functions of each module / unit in the foregoing device embodiments are implemented, for example, the functions of modules 51 to 53 shown in FIG. 5.

The terminal device 6 may be a computing device such as a desktop computer, a notebook, a palmtop computer, and a cloud server. The terminal device may include, but is not limited to, a processor 60 and a memory 61. Those skilled in the art can understand that FIG. 6 is only an example of the terminal device 6, and does not constitute a limitation on the terminal device 6, and may include more or less components than shown in the figure, or combine some components or different components. For example, the terminal device may further include an input sending device, a network access device, a bus, and the like.

The processor 60 may be a central processing unit (Central Processing Unit (CPU), or other general-purpose processors, Digital Signal Processors (DSPs), and application-specific integrated circuits (Applications) Specific Integrated Circuit (ASIC), off-the-shelf Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 61 may be an internal storage unit of the terminal device 6, such as a hard disk or a memory of the terminal device 6. The memory 61 may also be an external storage device of the terminal device 6, such as a plug-in hard disk, a smart media card (SMC), and a secure digital (SD) provided on the terminal device 6. Card, flash card, etc. Further, the memory 61 may further include both an internal storage unit of the terminal device 6 and an external storage device. The memory 61 is configured to store the computer-readable instructions and other programs and data required by the terminal device. The memory 61 may also be used to temporarily store data that has been sent or will be sent.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional unit.

When the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the methods of the above embodiments, and can also be completed by computer-readable instructions instructing related hardware. The computer-readable instructions can be stored in a computer-readable storage medium In the computer-readable instructions, when executed by a processor, the steps of the foregoing method embodiments can be implemented. The computer-readable instructions include computer-readable instruction codes, and the computer-readable instruction codes may be in a source code form, an object code form, an executable file, or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer-readable instruction code, a recording medium, a U disk, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory, ROM), Random Access Memory Memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdictions. For example, in some jurisdictions, the computer-readable medium Excludes electric carrier signals and telecommunication signals.

The above-mentioned embodiments are only used to describe the technical solution of the present application, but not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still implement the foregoing implementations. The technical solutions described in the examples are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in Within the scope of this application.

Claims

A picture cache cleaning method is characterized in that it includes:

When the total picture cache is greater than a preset memory threshold, the priority of each cached picture is determined based on the favorite tag value, the unloaded time, and the total loaded time corresponding to the currently unloaded and displayed cached picture, respectively. It is used to indicate whether the cached picture exists in the favorite list, the unloaded time is the time when the cached picture was most recently loaded by the terminal device and the display time is away from the current time, and the total loaded time is the cached picture being used by the Sum of the duration of the terminal device history loading display;

Using a replacement picture to replace the cache picture with a priority lower than a preset level, and storing a picture link corresponding to the cache picture with the replacement picture, and the replacement picture is determined according to a picture name corresponding to the cache picture;

If the total picture cache is greater than the memory threshold after completing the replacement operation, the cache pictures are cleaned in order from the lowest to the highest priority until the total picture cache is less than or equal to the memory threshold.
The method for cleaning a picture cache according to claim 1, wherein the priority of each cache picture is determined based on a favorite tag value, a non-load time, and a total load time corresponding to a currently unloaded and displayed cache picture, include:

Setting the cached picture existing in the favorite list as a first priority, and judging whether the unloaded duration corresponding to the cached picture not existing in the favorite list is greater than a preset first duration threshold, And whether the corresponding total loading duration is greater than a preset second duration threshold;

Setting the cache picture that does not exist in the favorite list and the corresponding unloaded duration is not greater than the first duration threshold as a second priority;

Setting the cache picture that does not exist in the favorite list and whose corresponding unloaded duration is greater than the first duration threshold and the corresponding total loaded duration is greater than the second duration threshold to a third priority ;

Setting the cache picture that does not exist in the favorite list and whose corresponding unloaded duration is greater than the first duration threshold and the corresponding total loaded duration is not greater than the second duration threshold as a fourth priority level;

The priority levels of the first priority, the second priority, the third priority, and the fourth priority are sequentially decreased.
The method for cleaning a picture cache according to claim 1 or 2, wherein the cleaning the cache pictures in order from low to high priority comprises:

Based on the picture compression rates corresponding to the priorities, the cached pictures are compressed in order from the lowest to the highest priority until the total picture cache is less than or equal to the memory threshold, where the picture compression rate Size is inversely related to priority.
The method for cleaning a picture cache according to claim 3, wherein if the total amount of the picture cache after compression is greater than the memory threshold, the compressed caches are sequentially sorted in order from low to high priority. Picture to clean up.
The method for cleaning a picture cache according to claim 4, wherein the step of sequentially cleaning the compressed pictures in a descending order of priority comprises:

Using the replacement picture to replace the compressed cache picture at the current priority, and storing a picture link corresponding to the cache picture in association with the replacement picture.
A picture cache cleaning device, comprising:

The priority sorting module is configured to determine the priority of each cached picture based on the favorite tag value, the unloaded duration, and the total loaded duration of the currently unloaded displayed cached pictures when the total amount of the picture cache is greater than a preset memory threshold. Level, the favorite flag value is used to indicate whether the cached picture exists in the favorite list, the unloaded time is the time when the cached picture was last loaded by the terminal device and the display time is away from the current time, and the total loading time A total length of time during which the cached picture is loaded and displayed by the terminal device history;

A picture replacement module, configured to replace the cache picture with a priority lower than a preset level by using a replacement picture, and store a picture link corresponding to the cache picture with the replacement picture, and the replacement picture is based on the cache picture The corresponding picture name is determined;

A multi-level cleaning module is used to clean up the cached pictures in order from the lowest to the highest priority if the total amount of the picture cache is greater than the memory threshold after the replacement operation is completed, until the total amount of the picture cache is less than Or equal to the memory threshold.
The picture cache cleaning device according to claim 6, wherein the priority ordering module comprises:

Setting the cached picture existing in the favorite list as a first priority, and judging whether the unloaded duration corresponding to the cached picture not existing in the favorite list is greater than a preset first duration threshold, And whether the corresponding total loading duration is greater than a preset second duration threshold.

Setting the cache picture that does not exist in the favorite list and the corresponding unloaded duration is not greater than the first duration threshold as a second priority.

Setting the cache picture that does not exist in the favorite list and whose corresponding unloaded duration is greater than the first duration threshold and the corresponding total loaded duration is greater than the second duration threshold to a third priority .

Setting the cache picture that does not exist in the favorite list and whose corresponding unloaded duration is greater than the first duration threshold and the corresponding total loaded duration is not greater than the second duration threshold as a fourth priority level.

The priority levels of the first priority, the second priority, the third priority, and the fourth priority are sequentially decreased.
The picture cache cleaning device according to claim 6 or 7, wherein the multi-level cleaning module further comprises:

A compression module, configured to compress the cached pictures in order from the lowest to the highest priority based on the picture compression rate corresponding to each priority until the total amount of picture cache is less than or equal to the memory threshold, The picture compression ratio is inversely related to the priority.
The picture cache cleaning device according to claim 8, wherein the multi-level cleaning module comprises:

A secondary cleaning module is configured to clean up the compressed cached pictures in order from the lowest to the highest priority if the total amount of the compressed picture cache is greater than the memory threshold.
The picture cache cleaning device according to claim 9, wherein the secondary cleaning module comprises:

Using the replacement picture to replace the compressed cache picture at the current priority, and storing a picture link corresponding to the cache picture in association with the replacement picture.
A terminal device, characterized in that the terminal device includes a memory and a processor, and the memory stores computer-readable instructions executable on the processor, and the processor executes the computer-readable instructions To achieve the following steps:

When the total picture cache is greater than a preset memory threshold, the priority of each cached picture is determined based on the favorite tag value, the unloaded time, and the total loaded time corresponding to the currently unloaded and displayed cached picture, respectively. It is used to indicate whether the cached picture exists in the favorite list, the unloaded time is the time when the cached picture was most recently loaded by the terminal device and the display time is away from the current time, and the total loaded time is the cached picture being used by the Sum of the duration of the terminal device history loading display;

Using a replacement picture to replace the cache picture with a priority lower than a preset level, and storing a picture link corresponding to the cache picture with the replacement picture, and the replacement picture is determined according to a picture name corresponding to the cache picture;

If the total picture cache is greater than the memory threshold after completing the replacement operation, the cache pictures are cleaned in order from the lowest to the highest priority until the total picture cache is less than or equal to the memory threshold.
The terminal device according to claim 11, wherein the determining the priority of each cached picture based on a favorite tag value, an unloaded duration, and a total loaded duration corresponding to a currently unloaded and displayed cached picture, specifically comprising :

Setting the cached picture existing in the favorite list as a first priority, and judging whether the unloaded duration corresponding to the cached picture not existing in the favorite list is greater than a preset first duration threshold, And whether the corresponding total loading duration is greater than a preset second duration threshold;

Setting the cache picture that does not exist in the favorite list and the corresponding unloaded duration is not greater than the first duration threshold as a second priority;

Setting the cache picture that does not exist in the favorite list and whose corresponding unloaded duration is greater than the first duration threshold and the corresponding total loaded duration is greater than the second duration threshold to a third priority ;

Setting the cache picture that does not exist in the favorite list and whose corresponding unloaded duration is greater than the first duration threshold and the corresponding total loaded duration is not greater than the second duration threshold as a fourth priority level;

The priority levels of the first priority, the second priority, the third priority, and the fourth priority are sequentially decreased.
The terminal device according to claim 11 or 12, wherein the cleaning the cached pictures in order from the lowest to the highest priority comprises:

Based on the picture compression rates corresponding to the priorities, the cached pictures are compressed in order from the lowest to the highest priority until the total picture cache is less than or equal to the memory threshold, where the picture compression rate Size is inversely related to priority.
The terminal device according to claim 13, characterized in that, if the total amount of the compressed picture cache is greater than the memory threshold, the compressed pictures are sequentially processed in the descending order of priority. Clean up.
The terminal device according to claim 14, wherein the cleaning the compressed cache pictures in order from the lowest to the highest priority comprises:

Using the replacement picture to replace the compressed cache picture at the current priority, and storing a picture link corresponding to the cache picture in association with the replacement picture.
A computer-readable storage medium storing computer-readable instructions, wherein the computer-readable instructions implement the following steps when executed by at least one processor:

When the total picture cache is greater than a preset memory threshold, the priority of each cached picture is determined based on the favorite tag value, the unloaded time, and the total loaded time corresponding to the currently unloaded and displayed cached picture, respectively. It is used to indicate whether the cached picture exists in the favorite list, the unloaded time is the time when the cached picture was most recently loaded by the terminal device and the display time is away from the current time, and the total loaded time is the cached picture being used by the Sum of the duration of the terminal device history loading display;

Using a replacement picture to replace the cache picture with a priority lower than a preset level, and storing a picture link corresponding to the cache picture with the replacement picture, and the replacement picture is determined according to a picture name corresponding to the cache picture;

If the total picture cache is greater than the memory threshold after completing the replacement operation, the cache pictures are cleaned in order from the lowest to the highest priority until the total picture cache is less than or equal to the memory threshold.
The computer-readable storage medium according to claim 16, wherein the priority of each cached picture is determined based on the favorite tag value, the unloaded duration, and the total loaded duration corresponding to the currently unloaded and displayed cached picture respectively. ,include:

Setting the cached picture existing in the favorite list as a first priority, and judging whether the unloaded duration corresponding to the cached picture not existing in the favorite list is greater than a preset first duration threshold, And whether the corresponding total loading duration is greater than a preset second duration threshold;

Setting the cache picture that does not exist in the favorite list and the corresponding unloaded duration is not greater than the first duration threshold as a second priority;

Setting the cache picture that does not exist in the favorite list and whose corresponding unloaded duration is greater than the first duration threshold and the corresponding total loaded duration is greater than the second duration threshold to a third priority ;

Setting the cache picture that does not exist in the favorite list and whose corresponding unloaded duration is greater than the first duration threshold and the corresponding total loaded duration is not greater than the second duration threshold as a fourth priority level;

The priority levels of the first priority, the second priority, the third priority, and the fourth priority are sequentially decreased.
The computer-readable storage medium according to claim 16 or 17, wherein the cleaning the cached pictures in order from low to high priority comprises:

Based on the picture compression rates corresponding to the priorities, the cached pictures are compressed in order from the lowest to the highest priority until the total picture cache is less than or equal to the memory threshold, where the picture compression rate Size is inversely related to priority.
The computer-readable storage medium according to claim 18, wherein if the total amount of the picture cache after compression is greater than the memory threshold, the compressed images are sequentially processed in order of priority from low to high. Cache images for cleaning.
The computer-readable storage medium according to claim 19, wherein the step of sequentially cleaning the compressed cached pictures in order of priority from low to high comprises:

Using the replacement picture to replace the compressed cache picture at the current priority, and storing a picture link corresponding to the cache picture in association with the replacement picture.