Android Qualcomm 4.4.4 source code how to shield the Home Key, android4.4.4

Android Qualcomm 4.4.4 source code how to shield the Home Key, android4.4.4

If you want to shield the home key from the Qualcomm 4.4.4 source code so that it does not respond, it is useless to modify it at the application layer.

View framework Layer Code

 

NamePhoneWindowManager. javaSource File

 

Go to nameInterceptKeyBeforeDispatchingFunctions

From the function name, we can know that this function is intercepted before the key event is distributed.

 

View the processing of the KEYCODE_HOME key

The key code is as follows:

When the incoming call rings, return-1; block the home Key

Therefore, we need to block the home key. Here we can write the condition return-1 for processing.

The return-1 event is intercepted and will not be distributed to the upper layer.

 

Otherwise, the launcher is returned in response to the home Key.