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How To Send My Activity To Background And Resume?

I want to load data from Internet. While loading data I show a loading indicator. What I want to do when pressing back, I cancel the loading indicator via onCancelEvent(). I want

Solution 1:

Simply use:

moveTaskToBack(true);

Solution 2:

Basically you want to switch the order of the current background and the previous background. To do this, you can start the previous activity and use the FLAG_ACTIVITY_REORDER_TO_FRONT flag:

Intent intent = newIntent(this, MyPreviousActivity.class);
intent.setFlags(FLAG_ACTIVITY_REORDER_TO_FRONT);
startActivity(intent);

So if you have tasks A, B, C and task C calls startActivity() with activity B, then B will be brought to the front of the activity stack, with the resulting order A, C, B, which is what you were asking for.

See Intent.FLAG_ACTIVITY_REORDER_TO_FRONT

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