引言
开发过程中可能会遇到这样的需求，同一个view既可以点击也可以长按，这个时候你可能会想到直接添加两个手势不就行了，可是事实未必是你想的那样。
废话不多说直接上代码：
1.创建view 并添加手势
UIView *view = [[UIView alloc]init];
view.frame = CGRectMake(0, 0, 300, 300);
//添加点击手势
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAction:)];
tap.delegate = self;
[view addGestureRecognizer:tap];
//添加长按手势
UILongPressGestureRecognizer * longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(pressAction:)];
longPress.minimumPressDuration = 0.8;//长按手势的触发事件
longPress.delegate = self;
[view addGestureRecognizer: longPress];
//重点！！！ 如果长按确定偵測失败才會触发单击
[tap requireGestureRecognizerToFail:longPress];
2.代理方法
// 允许多个手势并发
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
return YES;
}
3.手势的响应
//点击
-(void)tapAction:(UITapGestureRecognizer*)tap{
//在此添加点击要实现的操作。。。
}
//长按
-(void)pressAction:(UILongPressGestureRecognizer*)longPress{
if (longPress.state == UIGestureRecognizerStateBegan) {
NSLog(@"UIGestureRecognizerStateBegan");
//添加个定时器使长按响应持续
self.timer = [NSTimer scheduledTimerWithTimeInterval:0.2 target:self selector:@selector(timerSelector) userInfo:nil repeats:YES];
}else if (longPress.state == UIGestureRecognizerStateChanged) {
}else {//longPress.state == UIGestureRecognizerStateEnded
[self.timer invalidate];
self.timer = nil;
}
}
//定时器响应
-(void)timerSelector{
//在此添加长按要实现的操作。。。
}
