iOS防止重复点击

- 设置点击间隔时间

- (void)viewEvent{
    static NSTimeInterval time = 0.0;
    NSTimeInterval currentTime = [NSDate date].timeIntervalSince1970;
    if (currentTime - time < 2.0) {
        NSLog(@"%s", __func__);
        return;
    }
    time = currentTime;
    
    //事件处理
}

- 点击后禁止交互事件

- (void)viewEvent: (UIView *)view{
    view.userInteractionEnabled = NO;
    [self performSelector:@selector(viewStatusChange:) withObject:view afterDelay:2.0];

    //事件处理
}

- (void)viewStatusChange: (UIView *)view{
    view.userInteractionEnabled = YES;
}

- 点击后覆盖前一事件

- (void)viewUserInterface: (UIView *)view{
    [[self class] cancelPreviousPerformRequestsWithTarget:self selector:@selector(viewEvent:) object:view];
    [self performSelector:@selector(viewEvent:) withObject:view afterDelay:.2];
}

- (void)viewEvent: (UIView *)view{
    //事件处理
}