Question

我已将WebView放置在Scrollview中，而Scrollview又放置在viewcontroller的视图中。点击webview时，“tapRecognized”方法不会被调用。

这是我的代码：

    UITapGestureRecognizer *oneFingerTwoTaps = 
      [[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapRecognized)] autorelease];

    [oneFingerTwoTaps setNumberOfTapsRequired:1];


// Add the gesture to the view

[[self view] addGestureRecognizer:oneFingerTwoTaps];

我也尝试过使用foll：

[scrollview addGestureRecognizer:oneFingerTwoTaps];

[webview addGestureRecognizer:oneFingerTwoTaps];

请帮忙

Answer 1

尝试添加以下语句：

//.h
...
@interface yourclass <UIGestureRecognizerDelegate>
...

//.m
...
[oneFingerTwoTaps setDelegate:self];
...

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
    return YES;
}

我希望它可以提供帮助

Answer 2

手势识别器只能添加到单个视图中。视图无法共享手势识别器。虽然UIViews可以附加多个手势识别器，但UIGestureRecognizer只能附加一个视图。当您将Gesture添加到任何基于UIView的视图时，以下是在UIGestureRecognizer上设置的属性。

view
The view the gesture recognizer is attached to. (read-only)

@property(nonatomic, readonly) UIView *view

Discussion
 You attach (or add) a gesture recognizer to a UIView object using the addGestureRecognizer: method.

Availability
 Available in iOS 3.2 and later.
Declared In
 UIGestureRecognizer.h

点击手势识别器不适用于UIVcrollView内的UIWebiew，它位于UIView内部

2 个答案: