android get all subviews of a view

Question

I want to get all children of a RelativeLayout. I get this using the code:

aditionView.getAllChildren().

But now the subviews are coming in the order in which it is added into that view. But i want them in the increasing order of position in which it is placed in the view.

Answer 1

You could sort children by View.getLeft()

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    logCoordinates();
}

private void logCoordinates() {
    RelativeLayout layout = (RelativeLayout)findViewById(R.id.layout);
    for (int i = 0; i < layout.getChildCount(); i++) {
        View child = layout.getChildAt(i);
        Log.i("tag", String.format("%d %d %d %d", child.getLeft(), child.getTop(), child.getRight(), child.getBottom()));
    }
}

@Override
public void onWindowFocusChanged(boolean hasFocus) {
    logCoordinates();
}

Please, compare log output of logCoordinates() called from onCreate() and from onWindowFocusChanged(). View coordinates are not available within onCreate() (why?). See discussion here How to get height and width of Button