ios開發筆記之手勢觸控

標籤：

1.區分單擊和雙擊事件

- (void)addTapHandler{    // 單擊的 Recognizer    UITapGestureRecognizer* singleRecognizer;    singleRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTapActon:)];    /**     *  單擊     */    singleRecognizer.numberOfTapsRequired = 1; // 單擊        //給view添加一個手勢監測；    [self.feedView addGestureRecognizer:singleRecognizer];            // 雙擊的 Recognizer    UITapGestureRecognizer* doubleRecognizer;    doubleRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doubleTapActon)];                /**     *  雙擊     */    doubleRecognizer.numberOfTapsRequired = 2;               //給view添加一個手勢監測；    [self.feedView addGestureRecognizer:doubleRecognizer];            [singleRecognizer requireGestureRecognizerToFail:doubleRecognizer];}

2. UILongPressGestureRecognizer 執行兩次的問題

- (void)handleLongPress:(UILongPressGestureRecognizer*)sender {     if (sender.state == UIGestureRecognizerStateEnded) {        NSLog(@"Long press Ended");    }    else {        NSLog(@"Long press detected.");    }}

ios開發筆記之手勢觸控