Veamos las coordenadas!!!

[zero_master]

Saludos encontre entre mis archivos otro proyecto que hice... hago lo mismo pero le aplico el OnTouch a un ImageView para ver los valores de los pixeles en una imagen... espero te sirva

Código Javascript:

import android.app.Activity;
import android.os.Bundle;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.view.MotionEvent;
import android.view.View;
 
public class ImagRGBPixel extends Activity {
    Bitmap bMap;
    ImageView image;
    TextView text,pixel;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        LinearLayout MainLayout = (LinearLayout)findViewById(R.id.mainlayout);
        bMap = BitmapFactory.decodeResource(getResources(), R.drawable.rgb);
        image = (ImageView)findViewById(R.id.test_image);
        text = (TextView)findViewById(R.id.RGB);
        pixel = (TextView)findViewById(R.id.Pixel);
        image.setImageBitmap(bMap);
        image.setOnTouchListener(OnTouchListener); 
        MainLayout.setOnTouchListener(OnTouchListener1);
    }
    public int[] RGBreturn(int x)
    {
        int h[] = new int [4];
        h[3] = (x>>24)&0xFF;
        h[0] = (x>>16)&0xFF;
        h[1] = (x>>8)&0xFF;
        h[2] = x&0xFF;
        return h;
    }
    private View.OnTouchListener OnTouchListener
       = new View.OnTouchListener(){
     
     @Override
     public boolean onTouch(View view, MotionEvent motionEvent) {
      // TODO Auto-generated method stub
      int x, y;
      x = (int)motionEvent.getX();
      y = (int)motionEvent.getY();
      pixel.setText("Pixel: " + Integer.toString(x)+", "+ Integer.toString(y));
      int pix = bMap.getPixel(x, y);
      int h[] = RGBreturn(pix);
      text.setText("A= "+Integer.toString(h[3])+" R= "+Integer.toString(h[0])+" G= "+Integer.toString(h[1])+" B= "+Integer.toString(h[2]));
      return true; //means event have been processed
     }
        
       };
       private View.OnTouchListener OnTouchListener1
       = new View.OnTouchListener(){
     
     @Override
     public boolean onTouch(View view, MotionEvent motionEvent) {
      // TODO Auto-generated method stub
      pixel.setText("ERROR FUERA DE LA IMAGEN");
      return true; //means event have been processed
     }
        
       };
}