ios手势

最新推荐文章于 2025-05-04 11:21:22 发布

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最新推荐文章于 2025-05-04 11:21:22 发布

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原文链接：http://www.cnblogs.com/wcLT/p/4087405.html

本文介绍了如何在iOS应用中实现单击和双击手势识别。通过使用UITapGestureRecognizer，可以轻松地为视图添加单击和双击的手势响应功能。文章详细展示了设置手势识别器并确保双击优先级高于单击的技术细节。

- (void)viewDidLoad {
// 单击的 Recognizer
UITapGestureRecognizer* singleRecognizer;
singleRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:selfaction:@selector(handleSingleTapFrom)];
singleTapRecognizer.numberOfTapsRequired = 1; // 单击
[self.view addGestureRecognizer:singleRecognizer];

// 双击的 Recognizer
UITapGestureRecognizer* double;
doubleRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:selfaction:@selector(handleDoubleTapFrom)];
doubleTapRecognizer.numberOfTapsRequired = 2; // 双击
[self.view addGestureRecognizer:doubleRecognizer];

// 关键在这一行，如果双击确定偵測失败才會触发单击
[singleRecognizer requireGestureRecognizerToFail:doubleRecognizer];
[singleRecognizer release];
[doubleRecognizer release];
}