compound drawables click listener

OnDrawableClickListener.java

package com.aliens.utils;

import android.view.MotionEvent;
import android.view.View;
import android.widget.TextView;

public class OnDrawableClickListener implements View.OnTouchListener {

    private static final int LEFT_DRAWABLE = 0;
    private static final int TOP_DRAWABLE = 1;
    private static final int RIGHT_DRAWABLE = 2;
    private static final int BOTTOM_DRAWABLE = 3;

    @Override
    public boolean onTouch(View v, MotionEvent event) {
        if (event.getAction() == MotionEvent.ACTION_UP) {
            TextView tv = (TextView) v;
            float x = event.getX();
            int width = tv.getWidth();
            if (x > width - tv.getCompoundDrawables()[LEFT_DRAWABLE].getBounds().width()) {
                onLeftDrawableClicked(v);
            } else if (x > width - tv.getCompoundDrawables()[TOP_DRAWABLE].getBounds().width()) {
                onTopDrawableClicked(v);
            } else if (x > width - tv.getCompoundDrawables()[RIGHT_DRAWABLE].getBounds().width()) {
                onRightDrawableClicked(v);
            } else if (x > width - tv.getCompoundDrawables()[BOTTOM_DRAWABLE].getBounds().width()) {
                onBottomDrawableClicked(v);
            }
        }
        return true;
    }

    protected void onBottomDrawableClicked(View v) {
    }

    protected void onTopDrawableClicked(View v) {
    }

    protected void onLeftDrawableClicked(View v) {
    }

    protected void onRightDrawableClicked(View v) {
    }
}