Android-启动新活动时，ImageButton失去按下状态

Question

I have an ImageButton which changes depending on whether it is in a pressed state or not. This is working fine, until I launch a new activity.

When an object from the ListView is clicked it starts a new activity, but just before the new activity launches in to the foreground I can see the ImageButton going back to it's default state.

When I press the back button to go back to my MainActivity , the ImageButton is in it's default state but I want it to remain in the state that it is in when the ListView is clicked to launch the new activity.

So in this scenario I would have wanted it to remain in it's pressed state through launching the new activity and then going back to the MainActivity .

I'm not sure if this is a default feature which just clears any sort of object states upon launching a new activity or if there is something I am doing incorrectly?

Also if this is default behaviour is there a way around it?

Answer 1

What I recomend to you is use the shared preferences to save the button state. You can see it in this post: how to save togglebutton state using shared preferences

Answer 2

The answer in the end was a very simple one. In onPause , I stored the state of the ImageButton in a Bundle and then in onResume I called the stored state from the Bundle .