import android.content.Context;import android.util.AttributeSet;import android.util.Log;import android.view.MotionEvent;import android.widget.GridView;public class NoScrollGridView extends GridView {    private static final String TAG = "NoScrollGridView";    private static final int BLANK_POSITION = -1;    private OnTouchBlankPositionListener mTouchBlankPosListener;    public NoScrollGridView(Context context) {        super(context);    }    public NoScrollGridView(Context context, AttributeSet attrs) {        super(context, attrs);    }    @Override    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);        super.onMeasure(widthMeasureSpec, expandSpec);    }    public interface OnTouchBlankPositionListener {        boolean onTouchBlankPosition();    }    public void setOnTouchBlankPositionListener(OnTouchBlankPositionListener listener) {        mTouchBlankPosListener = listener;    }    @Override    public boolean onTouchEvent(MotionEvent event) {        if (mTouchBlankPosListener != null) {            if (!isEnabled()) {                // A disabled view that is clickable still consumes the touch                // events, it just doesn‘t respond to them.                return isClickable() || isLongClickable();            }            if (event.getActionMasked() == MotionEvent.ACTION_UP) {                final int motionPosition = pointToPosition((int) event.getX(), (int) event.getY());                if (motionPosition == BLANK_POSITION) {                    return mTouchBlankPosListener.onTouchBlankPosition();                }            }        }        return super.onTouchEvent(event);    }}