Detailed explanation of react native monitoring Android fallback button and programmed exit application

Detailed explanation of react native monitoring Android fallback button and programmed exit application

preface

We know that the Android fallback button will control the page return, and quitting the application does not really mean quitting. It is still running in the background. Therefore, in some scenarios, it is necessary to monitor the Android fallback button. How should it be applied in react native? Let's take a look.

BackAndroid

This module is used to monitor the back key operation of hardware.

See the specific code below:

If there is no listening function in the listening event, or the return value of the listening function is not true, the default back key function will be called to exit the application.

Common methods

Execute exit application

Add listening event

Delete listening event

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