Question

我有一个UIButton内部的视图，如下所示：snapshot 01 http://imageshack.us/a/img827/7240/screenshot20130220at333.png

按钮绑定到IBAction：

-(IBAction)deleteButtonPressed :(id)sender{
    NSLog(@"DeleteButtonPressed");
}

我还有另一个视图，显示最后一个视图的集合：snapshot 02 http://img836.imageshack.us/img836/2104/screenshot20130220at339.png

在这个观点的控制器中，我有一点：

    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAction:)];
    tapGesture.numberOfTapsRequired = 1;
    tapGesture.numberOfTouchesRequired = 1;
    [preview addGestureRecognizer:tapGesture];

而且：

- (void)tapAction:(UIGestureRecognizer *)gestureRecognizer{

    EditorViewController *vc = [self.storyboard instantiateViewControllerWithIdentifier:@"EditorViewController"];
    vc.narration = preview.narration;
    self.navigationItem.backBarButtonItem.style = UIBarButtonItemStylePlain;
    self.navigationItem.backBarButtonItem.title = @"Done";
    vc.navigationItem.backBarButtonItem.style = UIBarButtonItemStylePlain;
    vc.navigationItem.backBarButtonItem.title = @"Done";
    [self.navigationController pushViewController:vc animated:YES];
}

因此，当我触摸预览时，我会加载另一个视图。当我点击按钮时出现问题。在这种情况下，函数-(IBAction)deleteButtonPressed: (id)sender不会执行，tapAction会执行。此外，按下时按钮也会改变。我试图不添加GestureRecognizer然后执行-(IBAction)deleteButtonPressed :(id)sender。

我做错了什么？当点击按钮时，如何实现这一点，下方的视图无法捕获手势？

Answer 1

您需要实现shouldReceiveTouch方法（这是UIGestureRecognizerDelegate协议的一部分）。

有关您的问题的更多信息：

Gesture recognizer and button actions

iOS重叠视图和UIGestureRecognizer

1 个答案: