How Can I reset the doubleTap action

I Tried override the setOnDoubleTapListener () ,but it is no use .this is my code
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imageView.setOnDoubleTapListener(new GestureDetector.OnDoubleTapListener() {
@Override
public boolean onSingleTapConfirmed(MotionEvent e) {
changeFloatBarShowState();
return true;
}

@Override
public boolean onDoubleTap(MotionEvent e) {
return true;
}

@Override
public boolean onDoubleTapEvent(MotionEvent e) {
return true;
}
});
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sometimes singleTap work but sometimes doubleTap work ,please tell me ,how can I refuse the doubleTap?