disable child view touches when parent disabled

Question

I am creating a clickable custom view to replace android.widget.Switch(Switch), using onDraw instead of additional Drawable. When I use Switch previously, if parent is disabled, the Switch is also not clickable, but when I migrated to my custom view, it's still clickable when parent disabled. How can I know if I should disable/ignore clicks?

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custom view parent enabled

custom view parent disabled (still clickable!)

Switch parent disabled (not clickable)

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my code like...

public class MySwitch extends View {

  public boolean onTouchEvent(MotionEvent motionEvent) {
    if (isClickable() && isEnabled()) {
      //do something
    }
  }

  protected void onDraw(Canvas canvas) {
    //draw track and thumb
  }

}

Answer 1

You could try validating parent as a ViewGroup as following.

public boolean onTouchEvent(MotionEvent motionEvent) {
    ViewGroup parent = (ViewGroup) getParent();
    Log.d(TAG, "onTouchEvent: parent enabled: " + parent.isEnabled());
}