JP4987492B2 - Electronic device and application program control method - Google Patents

Description

  The present invention relates to an electronic device having an external memory and an application program control method.

Electronic devices such as mobile phones and PDAs (Personal Digital Assistants) that can be equipped with external memory cards such as SD memory cards (trademark) are increasing. Such an external memory card has the advantage that it can be freely inserted and removed.
However, if an external memory card is removed while an application program that uses data in an external memory card is operating on an electronic device, the application program may not operate normally or the data on the external memory card may be destroyed. There have been cases where it has been done.

In order to avoid such a situation, for example, Patent Document 1 discloses a mobile phone that displays a warning screen to that effect when an external memory card is removed while an application program is accessing the external memory card. Further, an electronic device that performs processing such as stopping the operation of the application program and shifting from the execution screen of the application program to an initial screen (standby screen or the like) is also common.
JP 2004-343661 A

By the way, many electronic devices such as mobile phones and PDAs have a function of performing electronic mail via a communication network. In addition, it is common that predetermined data (including image data, audio data, etc.) can be attached to an e-mail and the attached data can be transmitted simultaneously with the data of the e-mail body. Furthermore, there is a data that can use data stored in an external memory card as attached data of an e-mail.
In such an electronic device, in order to maintain the data on the external memory card, for example, if the external memory card is removed while a screen related to the electronic mail function (hereinafter referred to as a mail screen) is displayed, the electronic memory Regardless of whether the e-mail function is accessed or not, there are some functions that shift from the e-mail screen to the standby screen. There is a disadvantage that it may give a pleasant feeling and there is a problem in terms of usability.

  In addition, for example, when an electronic device displays a list of e-mails, icons that indicate the presence of attached data are often displayed attached to the e-mail for e-mails with attached data, If the external memory card is removed at this time, if the attached data is in the external memory card, the presence or absence of the attached data is checked again, and if the mail list screen is not regenerated, the actual display will be displayed. (Since the attached data exists in the external memory card, the attached data cannot be accessed at the time when the external memory card is removed, but an icon indicating the presence of the attached data is displayed). There is a disadvantage of being confused. In addition, if the external memory card is removed while displaying the e-mail list, checking the presence of attached data again and displaying the e-mail list screen will adversely affect the performance of the electronic device. There is also a disadvantage.

  The above-mentioned disadvantages are the same not only in the electronic mail function of the electronic device but also in all application programs that operate on the electronic device and transition to a related screen during the operation.

  In order to eliminate the above-described disadvantages, the present invention provides an electronic device that performs screen transition with good usability when an external memory card is removed during operation of an application program that displays a related screen during operation. An object is to provide an application program control method.

In order to achieve the above-described object, an electronic device according to a first aspect of the present invention is an electronic device in which an external storage device for storing data is detachable, and is second information that is first information and subordinate information of the first information. An internal storage unit in which an application program having information is stored; an application execution control unit that executes the application program; and when the application program is not executed, predetermined initial information is displayed, and the application execution control When the application program is executed by a unit, a display unit for displaying various information including the first information and the second information, an external storage mounting unit to which the external storage device is mounted, and the external An attachment / detachment detection unit for detecting an attachment / detachment state of the external storage device to the storage mounting unit, and the second information is stored in the external storage device The application execution control unit is configured to include the attachment / detachment detection unit when the second information is displayed on the display unit during execution of the application program. When it is detected that the external storage device is removed from the external storage mounting unit, the first information is displayed on the display unit, and the application execution control unit If the program can be executed and the attachment / detachment detection unit detects that the external storage device has been removed from the external storage mounting unit during the execution of the cooperative application program, before executing the cooperative application program Processing according to the information displayed on the display unit is performed .

An application program control method according to a second aspect of the invention is an application that controls an application program having first information and second information that is subordinate information of the first information in an electronic device in which an external storage device that stores data is removable. In the program control method, when it is determined that the external storage device is removed from the electronic apparatus, and a first step of determining whether or not the external storage device is removed in the first step, It is determined whether or not the second information configured to include information that can be linked to data stored in the external storage device is displayed on the display unit of the electronic device during the execution of the application program. In the second step and the second step, there is information that can be linked to the data stored in the external storage device. When the second information formed is determined to be displayed during the execution of the application program Te, a third step of displaying the first information on the display unit, during the execution of the application program When it is detected that the external storage device has been removed from the electronic device during the execution of the cooperative application program, the display unit displays on the display unit before the cooperative application program is executed. A fourth step of performing processing according to the displayed information .

  According to the present invention, it is possible to provide an electronic device and an application program control method that perform screen transition with good usability when an external memory card is removed during operation of an application program that displays a related screen during operation. Can do.

Hereinafter, the portable terminal 100 of the present invention (the electronic device of the present invention) will be described.
<First Embodiment>
FIG. 1 is a block diagram illustrating an example of the configuration of the mobile terminal 100.
As illustrated in FIG. 1, the mobile terminal 100 includes a communication unit 1, an internal storage unit 2, a display unit 3, an input unit 4, an external storage mounting unit 5, an attachment / detachment detection unit 6, and a control unit 7.

The communication unit 1 transmits and receives various data to and from the server device via a communication network (not shown in FIG. 1). The various data are data such as voice calls and emails, for example.
The internal storage unit 2 stores various data used for each operation of the mobile terminal 100. The various types of data are, for example, emails received by the communication unit 1 from the server device via the communication network, audio data, image data, programs such as applications running on the mobile terminal 100, and data necessary for operation. It is.

The display unit 3 is a display device having a display such as a liquid crystal or an organic EL (Electro-Luminescence), and displays a mail screen, an image reproduction screen, and the like.
The input unit 4 is an input device such as a numeric keypad, a button, or a switch, and accepts user input during various operations of the mobile terminal 100.

The external storage mounting unit 5 is a terminal unit such as a card slot that can be loaded with an external storage device such as various memory cards and read data in the external storage device or write data into the external storage device. .
The attachment / detachment detection unit 6 is a detection unit that can detect whether or not an external storage device is connected to the external storage mounting unit 5. As a method for detecting attachment / detachment of the external storage device, for example, a contact type sensor may be used.
The control unit 7 comprehensively controls the operation of the mobile terminal 100. That is, the process which controls each structure of the portable terminal 100 and performs the operation | movement is performed.

FIG. 2 is a diagram illustrating an example of the appearance of the mobile terminal 100.
As shown in FIG. 2, in the mobile terminal 100, an upper housing 101 and a lower housing 102 are connected by a hinge portion 103 so as to be opened and closed.
The upper housing 101 has a display unit 3 such as a liquid crystal screen.
The lower housing 102 has an input unit 4 such as a numeric keypad or a cross key.

Hereinafter, specific examples of the present invention will be described.
The control unit 7 further includes an application execution control unit 71 for executing the application program.
The application program is, for example, a program such as a mail function that displays a screen for creating and browsing an e-mail.
In the present embodiment, a case where the application execution control unit 71 controls the mail function will be described in order to provide a more detailed description.

The application execution control unit 71 operates as follows when the mail function is executed.
FIG. 3 is a diagram showing an example of a screen displayed on the display unit 3 when the mail function is executed.
First, when the activation of the mail function is input via the user input unit 4 or the like while the initial screen (standby screen) shown in FIG. 3A is displayed on the display unit 3 of the mobile terminal 100, The application execution control unit 71 causes the display unit 3 to display a mail menu screen shown in FIG.
As shown in FIG. 3B, items such as “new creation”, “inbox”, “outbox”, “new mail inquiry”, etc. are displayed on the mail menu screen. Any one of them can be selected by inputting via.
The mail menu screen corresponds to the first information of the present invention.

When “new creation” is selected on the mail menu screen shown in FIG. 3B, the application execution control unit 71 causes the display unit 3 to display the outgoing mail creation screen shown in FIG.
FIG. 4 is a diagram showing a display screen when each item is selected on the mail menu screen.
As shown in FIG. 4A, the outgoing mail creation screen has input fields such as “address”, “subject”, “attachment”, and “text”, and the user inputs each via the input unit 4. You can make entries in the fields.
Note that “destination” is a mail transmission destination, “subject” is a title of the mail, “attachment” is data to be attached to the mail, and “text” is a column for inputting the text of the mail.
Here, the outgoing mail creation screen corresponds to the second information of the present invention.

The application execution control unit 71 causes the display unit 3 to display the reception box screen shown in FIG. 4B when “reception box” is selected on the mail menu screen shown in FIG.
As shown in FIG. 4B, the inbox screen has folders such as “Main Folder”, “Folder 1”, “Folder 2”, etc. Mail received by the mobile terminal 100 in each folder. Are allocated and stored in accordance with the settings made according to the input through the user input unit 4.
Here, the inbox screen corresponds to the third information of the present invention.

Further, the application execution control unit 71 causes the display unit 3 to display the reception box screen illustrated in FIG. 4C when “transmission box” is selected on the mail menu screen illustrated in FIG.
As shown in FIG. 4C, the transmission box screen stores mail transmitted by the mobile terminal 100, unsent mail, and transmission failure mail.
Here, the transmission box screen corresponds to the second information of the present invention.

  In addition, when “new mail inquiry” is selected on the mail menu screen shown in FIG. 3B, the application execution control unit 71 communicates with a mail server device (not shown in FIG. 1) via the communication unit 1. And inquiries about mail that has not been received yet, and if there is an unreceived mail in the mail server, the mail is received. If there is no unreceived mail, the message is displayed and the mail menu screen shown in FIG.

Here, a screen that the application execution control unit 71 displays on the display unit 3 when the external storage device is removed from the external storage mounting unit 5 in each screen described above will be described.
First, when the attachment / detachment detection unit 6 detects that the external storage device is removed from the external storage mounting unit 5 while the mail menu screen (first information of the present invention) shown in FIG. The application execution control unit 71 keeps the mail menu screen displayed on the display unit 3 (not changed).
Next, when the attachment / detachment detection unit 6 detects that the external storage device is removed from the external storage mounting unit 5 while the outgoing mail creation screen (second information of the present invention) shown in FIG. If there is a possibility that the attached data is attached to the outgoing mail, and the attached data is the data stored in the external storage device, the outgoing mail creation screen that has been displayed is displayed. Since it may be impossible to continue, the application execution control unit 71 cancels the outgoing mail creation screen and switches to the mail menu screen shown in FIG.

Next, when the attachment / detachment detection unit 6 detects that the external storage device has been removed from the external storage mounting unit 5 during the display of the inbox screen (third information of the present invention) shown in FIG. Although there is a possibility that attached data is also attached to the received mail, the attached data does not exist in the external storage device (because the attached data of the received mail is received from the mail server and stored in the external storage device). The application execution control unit 71 keeps the reception box screen displayed on the display unit 3 because it is not stored in the external storage device unless an operation for moving is performed.
Next, when the attachment / detachment detection unit 6 detects that the external storage device is removed from the external storage mounting unit 5 while the transmission box screen (second information of the present invention) shown in FIG. As described above, since there is a possibility that the attached data in the external storage device is attached to the transmission mail, the application execution control unit 71 cancels the transmission box screen and displays the mail menu screen shown in FIG. Switch to.

  As described above, the application execution control unit 71 determines whether there is a possibility that the attached data exists in the external storage device (depending on whether it is the second information or the third information). It is possible to determine whether it is possible to continue displaying the screen that was displayed before removing the external storage device (determined that the second information is not possible, and the third information is possible). In some cases, the previous screen is continuously displayed, and if it is not possible, a higher-level screen (here, the mail menu screen) is displayed.

  That is, in the application execution control unit 71 of this embodiment, when the external storage device is removed from the screen related to the outgoing mail, it is impossible to continue displaying the screen that was displayed before the external storage device was removed. Assuming there is a process of switching to the mail menu screen. On the contrary, in the application execution control unit 71 of this embodiment, when the external storage device is removed on a screen that does not handle outgoing mail, it is possible to continue displaying the screen that was displayed before the external storage device was removed. As a result, a process of continuing to display a previous screen (for example, a display box screen) is executed.

Even when the external storage device is removed from the screen related to the mail function other than the screens shown in FIG. 4, the application execution control unit 71 determines that the screen is related to the same determination, that is, the screen related to the outgoing mail. If it is impossible to continue to display the screen that was displayed before the removal, it is possible to switch to the mail menu screen, and if it is a screen that does not handle outgoing mail, the screen that was displayed before removing the external storage device The processing for continuing to display the previous screen is executed as it is possible to continue displaying.
For example, as screens for handling other outgoing mails, there are a sent mail browsing screen, a sent mail list display screen, and the like in addition to a sent mail creation screen and a send box screen. In addition to the inbox screen, the screen that does not handle outgoing mail includes a received mail browsing screen, a received mail list display screen, a mail function setting screen, and the like.

Hereinafter, an operation example of the mobile terminal 100 of the present embodiment will be described.
FIG. 5 is a flowchart for explaining an operation example of the mobile terminal 100 according to the first embodiment.
Step ST1:
The attachment / detachment detection unit 6 determines whether or not the external storage device attached to the external storage attachment unit 5 has been removed. If it has been removed, the process proceeds to step ST2, and if it remains attached, step ST1 is repeated. If it is determined that the external storage device has been removed, a warning screen that warns the user that the external storage device has been removed may be displayed on the display unit 3.
Step ST2:
The application execution control unit 71 determines whether or not a screen for handling outgoing mail is displayed on the display unit 3 during activation of the mail function. If a screen that handles outgoing mail is displayed on the display unit 3, the process proceeds to step ST3. If a screen that does not handle outgoing mail is displayed on the display unit 3, the process proceeds to step ST6.

Step ST3:
The application execution control unit 71 determines whether or not the mail is being edited according to the input via the user input unit 4. If the mail is being edited (for example, when a new mail is being created), the process proceeds to step ST4. If not (for example, if a mail sent in the past is being browsed), the process proceeds to step ST4. Proceed to ST5.
Step ST4:
The application execution control unit 71 stores the mail determined to be being edited in step ST3 in the internal storage unit 2 as a new unsent mail.

Step ST5:
The application execution control unit 71 causes the display unit 3 to display a mail menu screen that is an upper screen of each screen that handles outgoing mail.
Step ST6:
The application execution control unit 71 continues to display on the display unit 3 the screen that is being displayed at the time of step ST1 and does not handle outgoing mail. If the top screen of the mail function, that is, the mail menu screen is displayed at the time of step ST1, the mail menu screen is not displayed as it is, but the standby screen is displayed and the mail function is terminated. You may do it.

As described above, according to the portable terminal 100 of the present embodiment, the external storage device is removed from the external storage mounting unit 5 while the application execution control unit 71 displays each screen related to the mail function on the display unit 3. When the attachment / detachment detection unit 6 detects this, depending on whether or not there is a possibility that the attached data exists in the external storage device, the screen displayed before the external storage device is removed is continuously displayed. If it is possible, the previous screen is continuously displayed, and if it is not possible, the highest screen (mail menu screen) in the mail function is displayed.
For this reason, the display is caused by the link break of the attached data resulting from the removal of the external storage device that is executing the mail function of the mobile terminal 100 (the attached data is stored in the external storage device, and the data cannot be accessed upon removal). Contradiction may occur in the screen displayed in the section 3 (attached data is displayed on the screen, but it cannot be accessed, etc.), screen transition unintended by the user may occur (with removal of the external storage device) And so on), such as a sudden transition from the mail screen to the standby screen). Also, reconfigure the screen that is currently displayed according to the removal of the external storage device so that there is no contradiction (for example, if the external storage device was removed while the transmission menu was displayed, the link was broken at that time. Therefore, the performance of the portable terminal 100 does not deteriorate when the external storage device is removed.

Second Embodiment
In the second embodiment, when the application execution control unit 71 of the mobile terminal 100 links the currently activated application with another application, the display on the display unit 3 when the external storage device is removed is displayed. Processing will be described.
In the second embodiment, a case where the application execution control unit 71 executes, for example, a mail function (application program of the present invention) and an address book function (cooperative application program of the present invention) in cooperation with each other will be described.

  The configuration of the mobile terminal 100 in the second embodiment is the same as the configuration described in FIG. 1 of the first embodiment, and there is only a slight difference in the operation of the application execution control unit 71. Therefore, in the second embodiment, description of each component other than the application execution control unit 71 is omitted.

The address book function is used in the mail function and voice call function to register an e-mail address, telephone number, etc., associated with a name like an address book, and is called up by the user's input when necessary. It is a function to provide.
For example, when the address book function operates in cooperation with the mail function, the address book function has the following two operation modes.

One is a case where the mail address and name used in the mail function are registered in the address book function.
That is, the name and mail address of the mail sender can be registered in the address book function on the received mail browsing screen or the like.
The other is to use the mail address registered in the address book function by reading it from the address book when creating the outgoing mail. That is, the “destination” of the outgoing mail creation screen described in FIG. It is possible to copy and paste the mail address read from the address book function in the input field.

  The application execution control unit 71 of the second embodiment detects that the external storage device has been removed from the external storage mounting unit 5 when the address book function is activated in cooperation with the mail function being activated. 6 is displayed on the display unit 3 according to the display screen in the mail function immediately before the activation of the address book function.

This will be described in detail below.
First, a case will be described in which the address book function is activated in cooperation with the mail function in order to register the mail address or name used in the mail function in the address book function.
In the received mail browsing screen for displaying the received mail, the user performs a predetermined input via the input unit 4, and the display field in which the sender's mail address is displayed is displayed in the display field. An address book function for registering a mail address in the address book function is activated, and an address book registration screen is displayed on the display unit 3.

  When the address book registration screen is displayed on the display unit 3, if the attachment / detachment detection unit 6 detects that the external storage device has been removed from the external storage mounting unit 5, immediately before the address book registration screen is displayed. Since the received mail browsing screen was displayed in the mail function, that is, the screen not handling outgoing mail was displayed, the application execution control unit 71 makes the same determination as in the first embodiment and removes the external storage device A process of continuing to display the previous screen (here, the address book registration screen) is executed on the assumption that the previously displayed screen can be continuously displayed.

Next, the case where the address book function is activated in cooperation with the mail function when the mail address registered in the address book function is used on the outgoing mail creation screen will be described.
On the outgoing mail creation screen for creating / editing outgoing mail, the user makes a predetermined input via the input unit 4 and selects the address field, so that the mail address registered in the address book is displayed in the address field. The address book function is activated to complete the entry, and an address book search screen is displayed on the display unit 3. A list of names registered in advance is displayed on the address book search screen. When the user selects a destination name, the email address registered in association with the selected name is displayed on the send email creation screen. It will be filled in the address field.

  Here, when the address book search screen is displayed on the display unit 3, when the attachment / detachment detection unit 6 detects that the external storage device has been removed from the external storage mounting unit 5, the address book registration screen is displayed. Immediately before the display, the outgoing mail creation screen was displayed in the mail function, that is, the screen for handling outgoing mail was displayed. Therefore, the application execution control unit 71 performs the same determination as in the first embodiment, and external storage A process of displaying the mail menu screen is executed assuming that it is impossible to continue displaying the screen that was displayed before the device was removed.

  That is, the application execution control unit 71 according to the second embodiment allows the external storage device to move from the external storage mounting unit 5 when other functions (such as the address book function) that cooperate with the mail function are activated while the mail function is activated. When the attachment / detachment detection unit 6 detects that it has been removed, a determination is made according to the screen of the mail function before activation of other functions, and the screen to be displayed on the display unit 3 is determined. In the determination according to the screen of the mail function before starting other functions, as in the first embodiment, when the screen for handling outgoing mail is displayed on the display unit 3, it is displayed before the external storage device is removed. When it is impossible to continue displaying the screen, a process of displaying the upper screen (mail menu screen) is executed, and when a screen that does not handle outgoing mail is displayed on the display unit 3, the first embodiment The same determination as above is performed, and processing for continuing to display the previous screen (screen during activation of other functions) is executed on the assumption that the screen displayed before the external storage device removal can be continued.

Hereinafter, an operation example of the mobile terminal 100 according to the second embodiment will be described.
FIG. 6 is a flowchart illustrating an operation example of the mobile terminal 100 according to the second embodiment.
Step ST11:
While the mail function is activated, other functions (such as an address book function) linked with the mail function are activated in response to an input via the user input unit 4.
Step ST12:
The attachment / detachment detection unit 6 determines whether or not the external storage device attached to the external storage attachment unit 5 has been removed. If it has been removed, the process proceeds to step ST13, and if it remains attached, step ST12 is repeated. If it is determined that the external storage device has been removed, a warning screen that warns the user that the external storage device has been removed may be displayed on the display unit 3.

Step ST13:
The application execution control unit 71 determines whether or not a screen for handling outgoing mail has been displayed on the display unit 3 in the mail function immediately before the activation of another function in cooperation with the mail function. In the mail function immediately before the activation of other functions linked with the mail function, if a screen that handles outgoing mail is displayed on the display unit 3, the process proceeds to step ST14, and a screen that does not handle outgoing mail is displayed on the display unit 3. In this case, the process proceeds to step ST17.
Step ST14:
The application execution control unit 71 determines whether or not the mail is being edited immediately before the activation of another function linked to the mail function, in response to an input via the input unit 4 by the user. If the mail is being edited (for example, when a new mail is being created), the process proceeds to step ST15. If not (for example, if a previously sent mail is registered in the address book) Etc.), the process proceeds to step ST16.

Step ST15:
The application execution control unit 71 stores, in the internal storage unit 2, a mail that is determined to be being edited immediately before the activation of another function that cooperates with the mail function in step ST14 as a new unsent mail.
Step ST16:
The application execution control unit 71 ends other functions linked to the mail function, and causes the display unit 3 to display a mail menu screen.

Step ST17:
The application execution control unit 71 continues to display the startup screen of other functions linked to the mail function being displayed at the time of step ST12 on the display unit 3 as it is.

As described above, according to the mobile terminal 100 of the present embodiment, when the application execution control unit 71 activates another function linked to the mail function while the mail function is activated, the external storage device is the external storage mounting unit. When the attachment / detachment detection unit 6 detects that it has been removed from the external storage device 5, it is determined whether there is a possibility that attached data exists in the external storage device, that is, the data stored in the external storage device is handled. Depending on whether or not it is possible to continue displaying the screen that was displayed before removing the external storage device, and if so, the previous screen is displayed. Continue to display, and if not possible, end other functions that start in conjunction with the mail function and display the top screen (mail menu screen) in the mail function.
For this reason, when other functions linked to the mail function are activated while the mail function of the mobile terminal 100 is activated, a screen corresponding to the mail function immediately before the activation of the other function is immediately displayed even when the other function is activated. Can improve usability. In addition, there is a contradiction in the screen displayed on the display unit 3 due to a broken link of the attached data due to the removal of the external storage device (the attached data is stored in the external storage device, and the data cannot be accessed with the removal). (The attached data is displayed on the screen, but it cannot be accessed, etc.), or the screen transition is not intended by the user (from the other function activation screen to the standby screen when the external storage device is removed) Such as sudden transition) can be eliminated. Also, the screen currently displayed is reconfigured so that there is no contradiction when the external storage device is removed (for example, if the external storage device is removed while the address book search screen is displayed, the link is broken at that time. Therefore, when the external storage device is removed, the performance of the portable terminal 100 is not deteriorated.

  In the present embodiment, the address book function is given as an example of another function that is activated in cooperation with the mail function. However, the present invention is not limited to this. Other functions such as an image reproduction function and an audio reproduction function may be used as long as the functions are activated in cooperation with the mail function.

The present invention is not limited to the embodiment described above.
That is, when implementing the present invention, various modifications, combinations, sub-combinations, and alternatives may be made to the components of the above-described embodiments within the technical scope of the present invention or an equivalent scope thereof.

  In the first and second embodiments described above, the mail function has been described as an example of the application program executed by the application execution control unit 71, but the present invention is not limited to this. That is, of the functions that can be executed in the mobile terminal 100 instead of the mail function, the upper screen (the mail menu screen in the embodiment described above) and the lower screen (the mail function screen other than the mail menu screen in the embodiment described above). Any function that has When the present invention is applied to a function other than the mail function, the application execution control unit 71 has displayed a screen for handling outgoing mail on the display unit 3 when the external storage device is removed as in the above-described embodiment. Instead of making a determination according to whether or not it is a screen that can access data stored in the external storage device (that is, whether it is the second information or the third information of the present invention). Judgment should be made.

Specifically, for example, the present invention can be applied to a music playback function. That is, in the music playback function, the music playback menu screen is the top screen, and there are a folder screen, a setting screen, and the like in which music data is stored below. For example, the application execution control unit 71 determines that the internal folder screen that refers to the music data stored in the internal storage unit 2 is not a screen that can access the data stored in the external storage device, and stores the data in the external storage device. The external folder screen that refers to the stored music data may be determined to be a screen that can access the data stored in the external storage device.
Further, when the camera is activated, the screen transition when the external storage device is removed may be changed depending on whether the storage destination is the internal memory or the external memory (external storage device). The screen transition may be changed according to the relationship with the external storage device even when the data folder application is activated.
In the second embodiment described above, it is detected whether or not the external storage device has been removed during the execution of the cooperative application program. If the external storage device is removed, it is displayed on the display unit before the cooperative application program is executed. However, the present invention is not limited to this. For example, when the cooperative application program is activated, the state of the external storage device at the time of activation is detected and stored, and when it is determined that the execution of the cooperative application program has ended, the state of the external storage device is detected. If the external storage device is removed during the execution of the cooperative application program, or a different external storage device is installed, or the stored content has been changed based on the comparison result Alternatively, the same processing may be performed according to the information displayed on the display unit before the cooperation application program is executed (at the time of activation). This is effective when it cannot be determined whether or not the external storage device has been removed during execution of the cooperative application program.

FIG. 1 is a block diagram illustrating an example of the configuration of the mobile terminal 100. FIG. 2 is a diagram illustrating an example of the appearance of the mobile terminal 100. FIG. 3 is a diagram showing an example of a screen displayed on the display unit 3 when the mail function is executed. FIG. 4 is a diagram showing a display screen when each item is selected on the mail menu screen. FIG. 5 is a flowchart for explaining an operation example of the mobile terminal 100 according to the first embodiment. FIG. 6 is a flowchart for explaining an operation example of the mobile terminal 100 according to the second embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Portable terminal 101 ... Upper housing | casing 102 ... Lower housing | casing 103 ... Hinge part 1 ... Communication part 2 ... Internal storage part 3 ... Display part 4 ... Input part 5 ... External memory mounting part, 6 ... Detachment detection unit, 7 ... Control unit, 71 ... Application execution control unit

Claims (7)

An electronic device in which an external storage device for storing data is detachable,
An internal storage unit in which an application program having first information and second information which is lower information of the first information is stored;
An application execution control unit for executing the application program;
When the application program is not executed, predetermined initial information is displayed, and when the application program is executed by the application execution control unit, various types of information including the first information and the second information are displayed. A display section to be displayed;
An external storage mounting unit to which the external storage device is mounted;
An attachment / detachment detection unit for detecting an attachment / detachment state of the external storage device to the external storage mounting unit;
With
The second information is configured to include information that can be linked to the data stored in the external storage device,
The application execution control unit has removed the external storage device from the external storage mounting unit by the attachment / detachment detection unit when the second information is displayed on the display unit during execution of the application program. Is detected, the first information is displayed on the display unit ,
The application execution control unit is capable of executing a cooperative application program during execution of the application program, and the external storage device has been removed from the external storage mounting unit by the attachment / detachment detection unit during execution of the cooperative application program. An electronic device is characterized in that when an error is detected, processing corresponding to information displayed on the display unit is executed before the execution of the cooperative application program . The application program has third information that does not include information that can be linked to the data stored in the external storage device as lower information of the first information, separately from the second information,
The application execution control unit has removed the external storage device from the external storage mounting unit by the attachment / detachment detection unit when the third information is displayed on the display unit during execution of the application program. The electronic device according to claim 1, wherein the display of the third information is maintained on the display unit when the detection is detected. The application execution control unit, said after execution of the cooperative application program, to claim 1 or 2, characterized in that the corresponding to information displayed on the display unit process before execution of the cooperative application program The electronic device described. When the application execution control unit displays the second information on the display unit, the attachment / detachment detection unit detects that the external storage device has been removed from the external storage mounting unit. determining whether the second information is edited, the electronic device according to any one of claims 1 to 3 when it is determined to be edited, characterized in that the storing the second information . The application execution control unit displays the initial information when the detachment detection unit detects that the first information is removed from the external storage mounting unit while displaying the first information on the display unit. the electronic device according to claim 1, any one of 4, characterized in that to display the part. The application execution unit displays warning information on the display unit when the attachment / detachment detection unit detects that the external storage device is removed from the external storage mounting unit during execution of the application program. electronic apparatus as claimed in any one of claims 1 to 5, characterized. An application program control method for controlling an application program having first information and second information which is subordinate information of the first information in an electronic device to which an external storage device for storing data can be attached and detached,
A first step of determining whether or not the external storage device has been removed from the electronic device;
When it is determined in the first step that the external storage device has been removed, the second information configured to include information that can be linked to data stored in the external storage device is stored in the application program. A second step of determining whether the electronic device is displayed on the display unit during execution;
In the second step, when it is determined that the second information configured to include information that can be linked to the data stored in the external storage device is displayed during the execution of the application program A third step of displaying the first information on the display unit ;
When it is detected that the external storage device has been removed from the electronic device during execution of the cooperative application program, the cooperative application program is executed. A fourth step of performing processing according to the information previously displayed on the display unit;
An application program control method comprising:

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