iOS 长按事件 UILongPressGestureRecognizer

长按事件处理

最新推荐文章于 2019-08-28 19:16:56 发布

转载最新推荐文章于 2019-08-28 19:16:56 发布 · 154 阅读

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原文链接：http://www.cnblogs.com/qingjoin/archive/2012/10/31/2747710.html

本文介绍了一种使用UILongPressGestureRecognizer实现长按事件处理的方法。通过设置minimumPressDuration属性，可以控制长按的时间阈值。当长按事件开始、变化或结束时，分别执行不同的操作，如打印日志或获取被点击的单元格indexPath。

//像这种控件的长按事件有些地方是有系统自带的。但有些时候用起来也不太方便。下面这个可能以后能用到
UILongPressGestureRecognizer *longPressReger = [[UILongPressGestureRecognizer alloc]
                                                        
                                                        initWithTarget:self action:@selector(handleLongPress:)];
        
        longPressReger.minimumPressDuration = 2.0;
        
        [tbv addGestureRecognizer:longPressReger];
        
        [longPressReger release];


-(void)handleLongPress:(UILongPressGestureRecognizer *)gestureRecognizer
{
    NSLog(@"wwwwwfffffff");
    CGPoint point = [gestureRecognizer locationInView:tbv];
    if(gestureRecognizer.state == UIGestureRecognizerStateBegan)
        
    {
        NSLog(@"ssseeeeee");
    }
    
    else if(gestureRecognizer.state == UIGestureRecognizerStateEnded)
        
    {
        NSLog(@"mimimimimimi");
    }
    
    else if(gestureRecognizer.state == UIGestureRecognizerStateChanged)
        
    {
        NSLog(@"lostllllllll");
        
    }
    
    NSIndexPath *indexPath = [tbv indexPathForRowAtPoint:point];
    
    if (indexPath == nil)
    {
        NSLog(@"sadfasdfasdf");
    }
    else
    {
        
        //focusRow = [indexPath row];
        
        //focusView.hidden = NO;
        
    }
    
}

转载于:https://www.cnblogs.com/qingjoin/archive/2012/10/31/2747710.html