debugging - android studio debugger not stepping in to another activity from mainactivity

Question

public class MainActivity extends AppCompatActivity implements FragmentManager.OnBackStackChangedListener {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_scrolling); //------ Here the debug control not stepping into the activity_scrolling code / breakpoints.

Tried different options in preference/debugger/stepping - any suggestions.

question from:https://stackoverflow.com/questions/65910978/android-studio-debugger-not-stepping-in-to-another-activity-from-mainactivity

Answer 1

My mistake.

setContentView(R.layout.activity_scrolling);

----- This only sets a layout to the current activity even though it is meant for ScrollingActivity. This line loads the activity to Mainactivity. (Android doesn't seem to have 1 to 1 exclusive binding between layouts and activities. Do they?!)

You need to start the activity in order to use it and debug it.

So, add this below,

    Intent myIntent = new Intent(MainActivity.this, ScrollingActivity.class);
    myIntent.putExtra("key", "value"); //Optional parameters
    MainActivity.this.startActivity(myIntent);

This enables the second activity loaded and debugger navigates to breakpoints inside the second activity.