iOS 开发中的手势开发详解

{

    [super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

    

    UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];

    [btn setFrame:CGRectMake(50, 50, 100, 100)];

    [btn setBackgroundImage:[UIImage imageNamed:@"1.png"] forState:UIControlStateNormal];

    // 拖移的 Recognizer

    UIPanGestureRecognizer *panGestureRecognizer = [[UIPanGestureRecognizer alloc]initWithTarget:self                                               action:@selector(handlePan:)];

    [btn addGestureRecognizer:panGestureRecognizer];

    

    

    UIView *tapView = [[UIView alloc] initWithFrame:CGRectMake(10, 50, 300, 300)];

    [tapView setBackgroundColor:[UIColor redColor]];

    // 单击的 Recognizer

    UITapGestureRecognizer* singleRecognizer;

    singleRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(SingleTap:)];

    //点击的次数

    singleRecognizer.numberOfTapsRequired = 1; // 单击

    //点击的手指数

    singleRecognizer.numberOfTouchesRequired = 2;

    

    //给view添加一个手势监测；

    [tapView addGestureRecognizer:singleRecognizer];

    

    

    // 双击的 Recognizer

    UITapGestureRecognizer* doubleRecognizer;

    doubleRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(DoubleTap:)];

    doubleRecognizer.numberOfTapsRequired = 2; // 双击

    //关键语句，给self.view添加一个手势监测；

    [tapView addGestureRecognizer:doubleRecognizer];

    

    // 关键在这一行，双击手势肯定监测失败才会触发单击手势的相应操做

    [singleRecognizer requireGestureRecognizerToFail:doubleRecognizer];

    

    // 捏合的 Recognizer

    UIPinchGestureRecognizer *pinchGestureRecognizer = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(handlePinch:)];

    [tapView addGestureRecognizer:pinchGestureRecognizer];

    

    // 旋转的 Recognizer

    UIRotationGestureRecognizer *rotateRecognizer = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(handleRotate:)];

    [tapView addGestureRecognizer:rotateRecognizer];

    

    // 长按的 Recognizer

    UILongPressGestureRecognizer *longPressRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleLongPress:)];

    //设置长按时间间隔

    [longPressRecognizer setMinimumPressDuration:1.0];

    [tapView addGestureRecognizer:longPressRecognizer];

    

    // 滑动的 Recognizer

    UISwipeGestureRecognizer *swipeRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)];

    //设置滑动方向

    [swipeRecognizer setDirection:UISwipeGestureRecognizerDirectionDown];

    [tapView addGestureRecognizer:swipeRecognizer];

    

    

    [self.view addSubview:tapView];

    [self.view addSubview:btn];

}