iphone - 在 View 中使用 UITapGesture 时不调用 UIButton 操作

Question

我有一个 View ，我在那个 View 上添加了一个 UITapGesture。现在，当我在 View 中放置一个按钮并单击该按钮时，它不会调用按钮操作。

这是我的代码:

    ButtionView=[[UIView alloc]initWithFrame:CGRectMake(x, y, 84, 84)];
    ButtionView.tag=i;
    UIImageView *coverImageView = [[UIImageView alloc]     

    initWithFrame:CGRectMake(0,0,ButtionView.frame.size.width,84)];
    coverImageView.tag = i;
    UIButton *notesbutton=[UIButton buttonWithType:UIButtonTypeRoundedRect];
    notesbutton.frame=CGRectMake(0, 0,20,20);
    notesbutton.tag=i;

    [notesbutton addTarget:self action:@selector(buttonClickedForNotes:)      
    forControlEvents:UIControlEventTouchUpInside];
    [ButtionView addSubview:coverImageView];
    [ButtionView addSubview:notesbutton];
    [notesbutton bringSubviewToFront:ButtionView];
    [self.scrollview addSubview:ButtionView];
    [ButtionView addGestureRecognizer:oneFingerSingleTap];

-(IBAction)buttonClickedForNotes:(id) sender
{
    NSLog(@"buttion action call");

}

Answer 1

首先，订阅 UITapGesture 的委托(delegate)。

[singleTapGestureRecognizer setDelegate:self];

然后你必须让这个按钮成为你所在类(class)的ivar。然后，将此方法添加到您的类中:

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
{
    // Check if the touch was on the button. If it was,
    // don't have the gesture recognizer intercept the touch
    if (CGRectContainsPoint(notesButton.frame, [touch locationInView:self.view]))
        return NO;
    return YES;       
}

希望这对您有所帮助。