如何触发onPause和onResume？

Question

On the click of a button, I want onPause to be called. On clicking back/after a time interval, I want onResume to be called.

I find that system alerts, dialogs etc. do not call onPause and onResume on show and cancel.

I need to do this to verify a functional test. If i show a transparent activity, it's lifecycle methods would be called which would contradict what I am trying to test.

I only want to verify onPause and onResume on my current activity. Is this possible?

Answer 1

You need to create a new transparent (or partially transparent) Activity to trigger onPause . Simply adding a View won't do anything.

Then, hitting back, or finish -ing the newly created transparent Activity will trigger the onResume method.

If you want to test onStop functionality in addition to onPause , you'll want your new Activity to be opaque and the full screen size.

You should test it this way -- let the Android system trigger these methods to be called, instead of manually running them. Hence, you can let a button click launch the new Activity , then either hit back to close it, or add a button to the new Activity to finish it.