Refreshing an android app activity

问题

Is this A correct way to manually refresh an activity?

....
case R.id.action_refresh:
        Intent i = new Intent(Homepage.this, Homepage.class);
        Toast.makeText(Homepage.this, "refreshing", Toast.LENGTH_LONG).show();
        finish();
        startActivity(i);

seeing that this method destroys the activity and recreates it, i was wandering weither it may be to much of a costly method.

回答1:

The method given by you is a standard one. But if you need another method you can use the following method

 onCreate(null)

来源：https://stackoverflow.com/questions/21736610/refreshing-an-android-app-activity