[android] How do android screen coordinates work?

I am working with Android Animation and I have found the Android coordinate system to be quite confusing so I am here to ask this question about how coordinates work in Android. I am following this image for moving one view to another but it seems it's not working:

For Android API level 13 and you need to use this:

Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int maxX = size.x; 
int maxY = size.y;

Then (0,0) is top left corner and (maxX,maxY) is bottom right corner of the screen.

The 'getWidth()' for screen size is deprecated since API 13

Furthermore getwidth() and getHeight() are methods of android.view.View class in android.So when your java class extends View class there is no windowManager overheads.

          int maxX=getwidht();
          int maxY=getHeight();

as simple as that.

This picture will remove everyone's confusion hopefully which is collected from there.