Android: how to debug app's start-up process

Question

I am investigating some issues which happen during my app's startup process, but DDMS won't start the debug mode until the process has started, is there a way I can capture the events earlier?

Answer 1

I know that this is a couple of years late, but for any future searches:

Putting WaitForDebugger into your code is one way.

Unlocking developer options (by tapping on the build number in system information on the android device) in Settings allows us to select an application for debugging and then opt to wait for a debugger whenever the program is launched. This allows us do the equivalent of adding and removing WaitForDebugger without modifying and reinstalling the code each time.

Answer 2

For Android Studio, here is what worked for me:

1. Add

android.os.Debug.waitForDebugger();

Where you want to start debugging.

2. Then add a breakpoint just after it in your code
3. Compile your app and pass it to your device
4. Restart your device

5. Once it's up, attach the debugger:

   

6. Start debugging

Answer 3

You should implement your own Application class which extends Application and override the methods onCreate and so.. . This class will be your starting point of your app.

also set it as your application in the manifest.