Reducing a total amount of memory usage of an edge device by swapping application logics

1 . A computer-implemented method, comprising operations for:

grouping a first application and a swap application that share an application framework, wherein one of the first application and the swap application executes in the application framework at a time;

executing the first application in a foreground on the application framework, wherein the first application has a shown status and is attached to the application framework; and

in response to receiving a request to execute the swap application,

determining that the first application and the swap application use a same screen type and a same non-shareable resource;

storing an application logic of the first application in a suspended application logic pool, wherein the first application changes from the shown status to a hidden-suspended status and is detached from the application framework; and

executing the swap application in the foreground on the application framework, wherein the swap application has the shown status and is attached to the application framework.

2 . The computer-implemented method of claim 1 , wherein the operations further comprise:

receiving a request to execute the first application again;

storing an application logic of the swap application in the suspended application logic pool, wherein the swap application changes from the shown status to the hidden-suspended status;

retrieving the application logic of the first application from the suspended application logic pool; and

executing the first application in the foreground, wherein the first application changes from the hidden-suspended status to the shown status.

3 . The computer-implemented method of claim 1 , wherein the operations further comprise:

in response to receiving a request to execute a non-swap application,

executing the first application in a background, wherein the first application changes from the shown status to a hidden status; and

executing the non-swap application in the foreground on the application framework, wherein the non-swap application has the shown status.

4 . The computer-implemented method of claim 3 , wherein the operations further comprise:

receiving a request to execute the first application again;

executing the first application in the foreground, wherein the first application changes from the hidden status to the shown status; and

executing the non-swap application in the background, wherein the non-swap application changes from the shown status to the hidden status.

5 . The computer-implemented method of claim 1 , wherein the operations further comprise:

determining that memory usage exceeds a threshold; and

discarding one or more application logics in the suspended application logic pool to free space in memory.

6 . The computer-implemented method of claim 1 , wherein memory usage comprises memory for the application framework, the first application, and the swap application.

7 . The computer-implemented method of claim 1 , wherein the application framework comprises a first application framework, and wherein other applications are grouped to share a second application framework.

8 . A computer program product, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to perform operations for:

grouping a first application and a swap application that share an application framework, wherein one of the first application and the swap application executes in the application framework at a time;

executing the first application in a foreground on the application framework, wherein the first application has a shown status and is attached to the application framework; and

in response to receiving a request to execute the swap application,

determining that the first application and the swap application use a same screen type and a same non-shareable resource;

storing an application logic of the first application in a suspended application logic pool, wherein the first application changes from the shown status to a hidden-suspended status and is detached from the application framework; and

executing the swap application in the foreground on the application framework, wherein the swap application has the shown status and is attached to the application framework.

9 . The computer program product of claim 8 , wherein the program instructions are executable by the processor to cause the processor to perform further operations for:

receiving a request to execute the first application again;

storing an application logic of the swap application in the suspended application logic pool, wherein the swap application changes from the shown status to the hidden-suspended status;

retrieving the application logic of the first application from the suspended application logic pool; and

executing the first application in the foreground, wherein the first application changes from the hidden-suspended status to the shown status.

10 . The computer program product of claim 8 , wherein the program instructions are executable by the processor to cause the processor to perform further operations for:

in response to receiving a request to execute a non-swap application,

executing the first application in a background, wherein the first application changes from the shown status to a hidden status; and

executing the non-swap application in the foreground on the application framework, wherein the non-swap application has the shown status.

11 . The computer program product of claim 10 , wherein the program instructions are executable by the processor to cause the processor to perform further operations for:

receiving a request to execute the first application again;

executing the first application in the foreground, wherein the first application changes from the hidden status to the shown status; and

executing the non-swap application in the background, wherein the non-swap application changes from the shown status to the hidden status.

12 . The computer program product of claim 8 , wherein the program instructions are executable by the processor to cause the processor to perform further operations for:

determining that memory usage exceeds a threshold; and

discarding one or more application logics in the suspended application logic pool to free space in memory.

13 . The computer program product of claim 10 , wherein memory usage comprises memory for the application framework, the first application, and the swap application.

14 . The computer program product of claim 10 , wherein the application framework comprises a first application framework, and wherein other applications are grouped to share a second application framework.

15 . A computer system, comprising:

one or more processors, one or more computer-readable memories and one or more computer-readable, tangible storage devices; and

program instructions, stored on at least one of the one or more computer-readable, tangible storage devices for execution by at least one of the one or more processors via at least one of the one or more computer-readable memories, to perform operations comprising:

grouping a first application and a swap application that share an application framework, wherein one of the first application and the swap application executes in the application framework at a time;

executing the first application in a foreground on the application framework, wherein the first application has a shown status and is attached to the application framework; and

in response to receiving a request to execute swap application,

determining that the first application and the swap application use a same screen type and a same non-shareable resource;

storing an application logic of the first application in a suspended application logic pool, wherein the first application changes from the shown status to a hidden-suspended status and is detached from the application framework; and

executing the swap application in the foreground on the application framework, wherein the swap application has the shown status and is attached to the application framework.

16 . The computer system of claim 15 , wherein the program instructions perform operations further comprising:

receiving a request to execute the first application again;

storing an application logic of the swap application in the suspended application logic pool, wherein the swap application changes from the shown status to the hidden-suspended status;

retrieving the application logic of the first application from the suspended application logic pool; and

executing the first application in the foreground wherein the first application changes from the hidden-suspended status to the shown status.

17 . The computer system of claim 15 , wherein the program instructions perform operations further comprising:

in response to receiving a request to execute a non-swap application,

executing the first application in a background, wherein the first application changes from the shown status to a hidden status; and

executing the non-swap application in the foreground on the application framework, wherein the non-swap application has the shown status.

18 . The computer system of claim 17 , wherein the program instructions perform operations further comprising:

receiving a request to execute the first application again;

executing the first application in the foreground, wherein the first application changes from the hidden status to the shown status; and

executing the non-swap application in the background, wherein the non-swap application changes from the shown status to the hidden status.

19 . The computer system of claim 15 , wherein the program instructions perform operations further comprising:

determining that memory usage exceeds a threshold; and

discarding one or more application logics in the suspended application logic pool to free space in memory.

20 . The computer system of claim 15 , wherein memory usage comprises memory for the application framework, the first application, and the swap application.