Question

根据UIButton的压力,同一个布特顿必须履行不同的任务。

如何计算UIButton的期限?

Answer 1

用户可向纽芬兰州提出2项行动,衡量这两种方法之间的时间:

UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
btn.frame = CGRectMake(100.0, 100.0, 100.0, 20.0);
[btn setTitle:@"Test" forState:UIControlStateNormal];
[btn addTarget:self action:@selector(userEndsTap:) forControlEvents:UIControlEventTouchUpInside];
[btn addTarget:self action:@selector(userStartsTap:) forControlEvents:UIControlEventTouchDown];

以及用两种方法衡量你的任期:

- (void)userEndsTap:(id)sender {
   NSLog(@"user ends tap");
   // stop measurement an do something different for different durations
}

- (void)userStartsTap:(id)sender {
   NSLog(@"user starts tap");
   // start measurement
}

Answer 2

Attach a UILongPressGestureRecognizer to your button and set the minimumPressDuration property. You can attach multiple gesture recognizers to the same button for different minimal press duration.

如果你在不同的姿态识别器之间有“冲突”,你可以用<代码>-requireGestureRecognizer ToFail:来说明,只有在对方不承认的情况下,才能确认姿态。

查阅。

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