自己如何做网站关键词排名,网站留言板功能,昆明网站建设创意,游戏编辑器在ios开发中#xff0c;需用到对于手指的不同操作#xff0c;以手指点击为例#xff1a;分为单指单击、单指多击、多指单击、多指多击。对于这些事件进行不同的操作处理#xff0c;由于使用系统自带的方法通过判断touches不太容易处理#xff0c;而且会有事件之间的冲突。…在ios开发中需用到对于手指的不同操作以手指点击为例分为单指单击、单指多击、多指单击、多指多击。对于这些事件进行不同的操作处理由于使用系统自带的方法通过判断touches不太容易处理而且会有事件之间的冲突。 接下来通过以UITapGestureRecognizer 手势实现此功能需求 代码如下 ViewController.m中的viewDidLoad方法 1: //单指单击 2: UITapGestureRecognizer *singleFingerOne [[UITapGestureRecognizer alloc] initWithTarget:self 3: action:selector(handleSingleFingerEvent:)]; 4: singleFingerOne.numberOfTouchesRequired 1; //手指数 5: singleFingerOne.numberOfTapsRequired 1; //tap次数 6: singleFingerOne.delegate self; 7: 8: //单指双击 9: UITapGestureRecognizer *singleFingerTwo [[UITapGestureRecognizer alloc] initWithTarget:self 10: action:selector(handleSingleFingerEvent:)]; 11: singleFingerTwo.numberOfTouchesRequired 1; 12: singleFingerTwo.numberOfTapsRequired 2; 13: singleFingerTwo.delegate self; 14: 15: //双指单击 16: UITapGestureRecognizer *doubleFingerOne [[UITapGestureRecognizer alloc] initWithTarget:self 17: action:selector(handleDoubleFingerEvent:)]; 18: doubleFingerOne.numberOfTouchesRequired 2; 19: doubleFingerOne.numberOfTapsRequired 1; 20: doubleFingerOne.delegate self; 21: 22: UITapGestureRecognizer *doubleFingerTwo [[UITapGestureRecognizer alloc] initWithTarget:self 23: action:selector(handleDoubleFingerEvent:)]; 24: doubleFingerTwo.numberOfTouchesRequired 2; 25: doubleFingerTwo.numberOfTapsRequired 2; 26: doubleFingerTwo.delegate self; 27: 28: //如果不加下面的话当单指双击时会先调用单指单击中的处理再调用单指双击中的处理 29: [singleFingerOne requireGestureRecognizerToFail:singleFingerTwo]; 30: //同理双指亦是如此 31: [doubleFingerOne requireGestureRecognizerToFail:doubleFingerTwo]; 32: 33: [self.view addGestureRecognizer:singleFingerOne]; 34: [self.view addGestureRecognizer:singleFingerTwo]; 35: [self.view addGestureRecognizer:doubleFingerOne]; 36: [self.view addGestureRecognizer:doubleFingerTwo]; 37: 38: [singleFingerOne release]; 39: [singleFingerTwo release]; 40: [doubleFingerOne release]; 41: [doubleFingerTwo release]; 处理事件的方法代码 1: //处理单指事件 2: - (void)handleSingleFingerEvent:(UITapGestureRecognizer *)sender 3: { 4: if (sender.numberOfTapsRequired 1) { 5: //单指单击 6: NSLog(单指单击); 7: }else if(sender.numberOfTapsRequired 2){ 8: //单指双击 9: NSLog(单指双击); 10: } 11: } 12: //处理双指事件 13: - (void)handleDoubleFingerEvent:(UITapGestureRecognizer *)sender 14: { 15: if (sender.numberOfTapsRequired 1) { 16: //双指单击 17: NSLog(双指单击); 18: }else if(sender.numberOfTapsRequired 2){ 19: //双指双击 20: NSLog(双指双击); 21: } 22: } 将相应代码复制到你的工程中即可使用由于代码中已经有详细的解释说明这里就不在重复解释了。 代码中只是列举了单指与双指对于单击或多击的处理同理多指的操作需修改numberOfTouchesRequired属性对点击的次数需修改numberOfTapsRequired属性。 对于其他手势例如UISwipeGestureRecognizerUILongPressGestureRecognizer,UILongPressGestureRecognizer的操作使用类似处理。转载于:https://www.cnblogs.com/ThankForYou/archive/2012/08/31/2665829.html
