-(void)initGR{
UILongPressGestureRecognizer *longPressGR = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleLongPress:)];
longPressGR.minimumPressDuration = 0.7;
[self addGestureRecognizer:longPressGR];
}
-(void)handleLongPress:(UILongPressGestureRecognizer *)recognize{
}
原文：http://my.oschina.net/u/1781028/blog/406876