手势控制的使用

手势识别是具有互斥的原则的，比如单击和双击，如果它识别出一种手势，其后的手势将不被识别

// 添加单击的手势
UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] init];
tapGestureRecognizer.numberOfTapsRequired = 1; // 设置单击几次才触发方法
[tapGestureRecognizer addTarget:self action:@selector(tapGestureAction:)]; // 添加点击手势的方法
[self.view addGestureRecognizer:tapGestureRecognizer]; // 添加到当前的View上
[tapGestureRecognizer release], tapGestureRecognizer = nil; // 释放内存

// 添加长按的手势 注意：会调用两次方法，开始长按调用一次  松开后再调用一次  当长按并且滑动的时候，会多次调用长按的方法
UILongPressGestureRecognizer *pressLongGestureRecognizer = [[UILongPressGestureRecognizer alloc] init];
[pressLongGestureRecognizer addTarget:self action:@selector(pressLongGestureAction:)]; // 给长按手势添加方法
[self.view addGestureRecognizer:pressLongGestureRecognizer]; // 添加到当前的View上
[pressLongGestureRecognizer release], pressLongGestureRecognizer = nil; // 释放内存



// 添加捏合的手势  注意：捏合手势不是捏合一次调用一次方法，而是在捏合的过程中不停的调用方法
UIPinchGestureRecognizer *pinchGestureRecognizer = [[UIPinchGestureRecognizer alloc] init];
[pinchGestureRecognizer addTarget:self action:@selector(pinchGestureAction:)]; // 添加捏合手势的方法
[self.view addGestureRecognizer:pinchGestureRecognizer]; // 添加到当前的View上
[pinchGestureRecognizer release], pinchGestureRecognizer = nil; // 释放内存



// 添加旋转的手势 注意：旋转手势是两指同时进行旋转
UIRotationGestureRecognizer *rotationGestureRecognizer = [[UIRotationGestureRecognizer alloc] init];
[rotationGestureRecognizer addTarget:self action:@selector(rotationGestureAction:)]; // 给旋转手势添加方法
[self.view addGestureRecognizer:rotationGestureRecognizer]; // 添加到当前的View上
[rotationGestureRecognizer release], rotationGestureRecognizer = nil;



// 添加滑动的手势  注意： 快速移动，是用于监测滑动的方向的
UISwipeGestureRecognizer *swipGestureRecognizer = [[UISwipeGestureRecognizer alloc] init];
swipGestureRecognizer.direction = UISwipeGestureRecognizerDirectionUp; // 添加手势的方法
// 以下是设置滑动的方向
// typedef NS_OPTIONS(NSUInteger, UISwipeGestureRecognizerDirection) {
//    UISwipeGestureRecognizerDirectionRight = 1 << 0, // 从左向右滑动
//    UISwipeGestureRecognizerDirectionLeft  = 1 << 1, // 从右向左滑动
//    UISwipeGestureRecognizerDirectionUp    = 1 << 2, // 从下向上滑动
//    UISwipeGestureRecognizerDirectionDown  = 1 << 3  // 从上向下滑动
// };
[swipGestureRecognizer addTarget:self action:@selector(swipGestureAction:)]; // 给滑动手势添加方法
[self.view addGestureRecognizer:swipGestureRecognizer]; // 添加到当前的View上
[swipGestureRecognizer release], swipGestureRecognizer = nil; // 释放内存



// 添加拖移手势  注意：慢速移动，是用于监测偏移的量的
UIPanGestureRecognizer *panGestureRecognizer = [[UIPanGestureRecognizer alloc] init];
[panGestureRecognizer addTarget:self action:@selector(panGestureAction:)]; // 添加托移收拾的方法
[self.view addGestureRecognizer:panGestureRecognizer]; // 添加到当前的View
[panGestureRecognizer release], panGestureRecognizer = nil; // 释放内存


#pragma mark - 实现单击手势的方法
- (void)tapGestureAction:(UITapGestureRecognizer *) sender {
NSLog(@"您  轻拍   了屏幕");

}

#pragma mark - 实现长按手势的方法
- (void)pressLongGestureAction:(UILongPressGestureRecognizer *) sender {
NSLog(@"您   长按   了屏幕");

}

#pragma mark - 实现了捏合手势的方法
- (void)pinchGestureAction:(UIPinchGestureRecognizer *) sender {
NSLog(@"您   捏合   了屏幕");

}

#pragma mark - 实现旋转手势的方法
- (void)rotationGestureAction:(UIRotationGestureRecognizer *) sender {
NSLog(@"您使用了   旋转   手势");

}

#pragma mark - 实现滑动手势的方法
- (void)swipGestureAction:(UISwipeGestureRecognizer *) sender {   
NSLog(@"您   滑动    了屏幕");

}

#pragma mark - 实现了托移手势的方法
- (void)panGestureAction:(UIPanGestureRecognizer *) sender {
NSLog(@"您   托移   了。。。。");

}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
application.applicationSupportsShakeToEdit = YES;
return YES;
}
-(BOOL)canBecomeFirstResponder {
return YES;
}
-(void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
[self becomeFirstResponder];
}
- (void)viewWillDisappear:(BOOL)animated {
[self resignFirstResponder];
[super viewWillDisappear:animated];
}
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
if (motion == UIEventSubtypeMotionShake) {
    NSLog(@"检测到晃动");
}
}