- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor yellowColor];

    // 1.創建一個UIImage
    // 通過文件名直接進行創建
//    UIImage *image = [UIImage imageNamed:@"Curry.png"];
//    
//    UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
//    imageView.frame = CGRectMake(100, 100, 100, 200);
//    [self.view addSubview:imageView];
//    
//    [imageView release];

    UIImage *image = [UIImage imageNamed:@"zuozuomuxi.jpg"];
    UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(10, 160, 360, 360)];
    imageView.image = image;
    [self.view addSubview:imageView];
    [imageView release];
    // UIImageView相當于相框,用來顯示,UIImage顯示的內容

    // 把圖片的交互打開
    imageView.userInteractionEnabled = YES;

    // 手勢 Gesture
    // 1.輕拍Tap
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAction:)];

    // 設置需要點擊幾次才會觸發方法
    tap.numberOfTapsRequired = 2;
    tap.numberOfTouchesRequired = 2;

    // 把手勢加入到圖片上
    [imageView addGestureRecognizer:tap];
    // 內存管理
    [tap release];

    // 2.長按 LongPress
    UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)];
    // 設置一下長按需要的最短時間
    longPress.minimumPressDuration = 3;
    // 判斷在長按過程中允許手指移動的距離
    longPress.allowableMovement = 100;
    [imageView addGestureRecognizer:longPress];
    [longPress release];

    // 3.旋轉 rotation
    UIRotationGestureRecognizer *rotation = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotationAction:)];
    [imageView addGestureRecognizer:rotation];
    [rotation release];

    // 4.捏合 pinch
    UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinchAction:)];
    [imageView addGestureRecognizer:pinch];
    [pinch release];

    // 5.拖拽 pan
    UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panAction:)];
    [imageView addGestureRecognizer:pan];
    [pan release];

    // 6.輕掃
    UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeAction:)];
    [imageView addGestureRecognizer:swipe];
    [swipe release];
    // 輕掃的方向
    swipe.direction = UISwipeGestureRecognizerDirectionLeft;

}

- (void)tapAction:(id)sender {
    NSLog(@"taped an image");
}

- (void)longPress:(UILongPressGestureRecognizer *)longPress {
    // 長按的方法在手勢的各個狀態中都會進行觸發,所以需要進行判斷
    if (longPress.state == UIGestureRecognizerStateBegan) {
        NSLog(@"開始長按了");
    }

    NSLog(@"long pressed");
}

- (void)rotationAction:(UIRotationGestureRecognizer *)rotationGesture {
    // 獲得添加手勢的視圖
    UIImageView *imageView = (UIImageView *)[rotationGesture view];
    // 調整視圖的transform屬性（順時針正數,逆時針負數）
    imageView.transform = CGAffineTransformMakeRotation(rotationGesture.rotation);
}

- (void)pinchAction:(UIPinchGestureRecognizer *)pinchGesture {
    UIImageView *imageView = (UIImageView *)[pinchGesture view];

    imageView.transform = CGAffineTransformMakeScale(pinchGesture.scale, pinchGesture.scale);

//    imageView.transform = CGAffineTransformScale(imageView.transform, pinchGesture.scale, pinchGesture.scale);
//    pinchGesture.scale = 1;
}

- (void)panAction:(UIPanGestureRecognizer *)panGesture {
    // 獲取拖拽手勢添加的視圖
    UIImageView *imageView = (UIImageView *)[panGesture view];
    // 獲取手勢經過的點
    CGPoint p = [panGesture translationInView:imageView];
    // 然后對視圖的transform屬性進行改變(橫移x變y不變 豎移x不變y變)
    imageView.transform = CGAffineTransformMakeTranslation(p.x, p.y);
//    imageView.transform = CGAffineTransformTranslate(imageView.transform, p.x, p.y);
//    [panGesture setTranslation:CGPointZero inView:imageView];
}

- (void)swipeAction:(UISwipeGestureRecognizer *)swipeGesture {
    if (swipeGesture.direction == UISwipeGestureRecognizerDirectionLeft) {
        NSLog(@"向左");
    } else if (swipeGesture.direction == UISwipeGestureRecognizerDirectionRight) {
        NSLog(@"向右");
    } else if (swipeGesture.direction == UISwipeGestureRecognizerDirectionUp) {
        NSLog(@"向上");
    } else if (swipeGesture.direction == UISwipeGestureRecognizerDirectionDown) {
        NSLog(@"向下");
    }
}

以上是關于手勢的一些使用，先記一下以防以后忘記。
另外需要注意: 一個手勢只能添加到一個view上 一個view可以添加多個手勢 估計和一個view只能有一個superview一樣 一個guesture也只能對應一個view吧. 猜得.