Question

可能重复：
  How to detect tap on Uitableview cell with uiview and uibutton?
  UIButton Long Press Event

我正在通过表格自定义单元格加载按钮。如何确定用户单击按钮或长按事件按钮？。

Answer 1

我只是google它，我从堆栈溢出This

得到了最佳答案

- (void)viewDidLoad
{
    UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)];
    [self.button addGestureRecognizer:longPress];
    [longPress release];

 [super viewDidLoad];


}

和事件： -

- (void)longPress:(UILongPressGestureRecognizer*)gesture {
    if ( gesture.state == UIGestureRecognizerStateEnded ) {
         NSLog(@"Long Press");
    }
}

Answer 2

您可以通过创建UILongPressGestureRecognizer实例并将其附加到按钮来开始。

UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)];
[self.button addGestureRecognizer:longPress];
[longPress release];

然后实现处理手势的方法

- (void)longPress:(UILongPressGestureRecognizer*)gesture {
    if ( gesture.state == UIGestureRecognizerStateEnded ) {
         NSLog(@"Long Press");
    }
}

现在这将是基本方法。您还可以设置印刷机的最短持续时间以及可容忍的误差范围。并且还要注意，如果你在识别出手势之后几次调用该方法，那么如果你想在它结束时做一些事情，你将必须检查它的状态并处理它。

Reference

Answer 3

- (void)setLongTouchAction:(SEL)newValue
{
    if (newValue == NULL)
    {
        [self removeGestureRecognizer:longPressGestureRecognizer];
        [longPressGestureRecognizer release];
        longPressGestureRecognizer = nil;
    }
    else
    {
        [longPressGestureRecognizer release];
        longPressGestureRecognizer = nil;

        longPressGestureRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:[[self allTargets] anyObject] action:newValue];
        [self addGestureRecognizer:longPressGestureRecognizer];
    }
}


[undoButton addTarget:self action:@selector(performUndo:) forControlEvents:UIControlEventTouchUpInside];
[undoButton setLongTouchAction:@selector(showUndoOptions:)];

按下长按事件

3 个答案: