Java how to navigate to last back stack in android studio

To navigate to the last back stack in Android Studio, you can use the popBackStack method of the FragmentManager class with the POP_BACK_STACK_INCLUSIVE flag.

Here is an example of how you can navigate to the last back stack in Android Studio:

import android.app.FragmentManager;

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    
    public void navigateToLastBackStack(View view) {
        FragmentManager fragmentManager = getFragmentManager();
        fragmentManager.popBackStack(null, FragmentManager.POP_BACK_STACK_INCLUSIVE);
    }
}

In this example, the navigateToLastBackStack method is called when a button is clicked, and it uses the popBackStack method with the POP_BACK_STACK_INCLUSIVE flag to navigate to the last back stack.

Keep in mind that the FragmentManager class is used to manage the fragments in an Android app. You can use the addToBackStack method to add a fragment to the back stack, and the popBackStack method to remove a fragment from the back stack and navigate to the previous fragment. The POP_BACK_STACK_INCLUSIVE flag removes all the fragments in the back stack, including the current fragment, and navigates to the last fragment in the back stack.