Android’s viewDidLoad and viewDidAppear equivalent

The Activity class has onCreate and onResume methods that are pretty analagous to viewDidLoad and viewDidAppear.

Activity.onResume

EDIT

To add to this, since some have mentioned in the comments that the view tree is not yet fully available during these callbacks, there is the ViewTreeObserver that you can listen to if you need first access to the view hierarchy. Here is a sample of how you can use the ViewTreeObserver to achieve this.

    View someView = findViewById(R.id.someView);
    final ViewTreeObserver obs = someView.getViewTreeObserver();
    obs.addOnPreDrawListener(new OnPreDrawListener() {

        public boolean onPreDraw() {
            obs.removeOnPreDrawListener(this);
            doMyCustomLogic();
            return true;
        }
    });