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In some situations, we need to recall activity again from onCreate(). This example demonstrates how to reload activity in Android. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
On Clicking the back button from the New Activity, the finish() method is called and the activity destroys and returns to the home screen.
You can Simply use
finish();
startActivity(getIntent());
to refresh an Activity from within itself.
for those who don't want to see that blink after recreate() method simply use
finish();
overridePendingTransition(0, 0);
startActivity(getIntent());
overridePendingTransition(0, 0);
This is what I do to reload the activity after changing returning from a preference change.
@Override
protected void onResume() {
super.onResume();
this.onCreate(null);
}
This essentially causes the activity to redraw itself.
Updated: A better way to do this is to call the recreate() method. This will cause the activity to be recreated.
simply use
this.recreate();
this will trigger the onCreate method in the activity
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