Disabling back button on multiple activities (Android)

Question

I have seen this question: Disable back button in android (Please do not mark as duplicate for this.)

My query is this: I have twenty activities in a row. I want to disable the back button, so that the user can never come back to the activity he once crosses. Currently, how I do this is override onBackPressed() and remove the super.onBackPressed() call. This works fine.

I now need to add forty more activities, and it should have the same effect. Is there a method where I can just disable the back button for the entire application without having to code it up in each Activity?

Answer 1

Create BaseActivity and extend every your Activity with this BaseActivity, and add onBackPressed() logic in BaseActivity.

Ex:

public class BaseActivity extends AppCompatActivity {

    // Add your onBackPressed() logic here
}

Your activity,

public class MyActivityA extends BaseActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my_activity);
    }
}

Answer 2

您可以通过在转到下一个活动时完成上一个活动来实现此目的。