ios Objective-c：如何检测视图中的双击？
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Objective-c: How to detect double tap on view?
提问by Azhar
I am developing an application where I have multiple controls on view but I want to enable them when user double tap the view
我正在开发一个应用程序，其中我有多个视图控件，但我想在用户双击视图时启用它们
You can take the example of double click but in device I want to catch the event when their is double tap.
您可以以双击为例，但在设备中，我想在双击时捕获事件。
回答by xuzhe
You need to add an UITapGestureRecognizerto the view which you want to be tapped.
您需要向UITapGestureRecognizer要点击的视图添加。
Like this:
像这样：
- (void)viewDidLoad {
[super viewDidLoad];
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapGesture:)];
tapGesture.numberOfTapsRequired = 2;
[self.view addGestureRecognizer:tapGesture];
[tapGesture release];
}
- (void)handleTapGesture:(UITapGestureRecognizer *)sender {
if (sender.state == UIGestureRecognizerStateRecognized) {
// handling code
}
}
回答by Morrowless
Add a UITapGestureRecognizerto the view, with numberOfTapsRequired = 2.
将 a 添加UITapGestureRecognizer到视图中，使用numberOfTapsRequired = 2.
