手勢的6種使用方法

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    UIImageView *p_w_picpathView = [[UIImageView alloc] initWithFrame:CGRectMake(20, 30, 280, 430)];
    p_w_picpathView.p_w_picpath = [UIImage p_w_picpathNamed:@"2.jpg"];
    //將用戶交互打開，，切記  只有兩個UIImage  和UILabel  都要打開交互
    [p_w_picpathView setUserInteractionEnabled:YES];
    [self.view addSubview:p_w_picpathView];
    [p_w_picpathView release];
    
    /*
    //手勢使用  看繼承關系，，，有沒有自己的初始化方法
    //1.點擊
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAction:)];
    //1.1設置要點擊幾次才會觸發方法
    tap.numberOfTapsRequired = 3;
    //1.2需要幾個手指點擊
    tap.numberOfTouchesRequired = 2;
    //1.3將手勢添加到p_w_picpathView上
    [p_w_picpathView addGestureRecognizer:tap];
    [tap release];
    */
    
    /*
    //2.長按
    UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressAction:)];
    //1.1判定為長按手勢需要的最短時間
    longPress.minimumPressDuration = 3;
    //1.2判定為長按的過程中，允許用戶手指移動的距離
    longPress.allowableMovement = 300;
    [p_w_picpathView addGestureRecognizer:longPress];
    [longPress release];
    */
    
    /*
    //3.旋轉
    UIRotationGestureRecognizer *rotation = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotationAction:)];
    [p_w_picpathView addGestureRecognizer:rotation];
    [rotation release];
     */
    
    /*
    //4.捏合
    UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinchAction:)];
    [p_w_picpathView addGestureRecognizer:pinch];
    [pinch release];
    */
    /*
    //5.拖拽
    UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panAction:)];
    [p_w_picpathView addGestureRecognizer:pan];
    [pan release];
    */
    
    //6.清掃
    UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(awipeAction:)];
    [p_w_picpathView addGestureRecognizer:swipe];
    //清掃的方向，向左  （如果要四個方向，就只能加四個手勢）
    swipe.direction = UISwipeGestureRecognizerDirectionLeft;
    [swipe release];
    
    
    
}
//6.清掃
- (void)awipeAction:(UISwipeGestureRecognizer *)awipe
{
    if (awipe.direction == UISwipeGestureRecognizerDirectionLeft) {
        NSLog(@"向左");
    }
    NSLog(@"清掃");
}
//5.拖拽
- (void)panAction:(UIPanGestureRecognizer *)pan
{
    UIImageView *view = (UIImageView *)pan.view;
    //獲得手勢經過的點
    CGPoint p = [pan translationInView:view];
    //對視圖的transform屬性改變
    view.transform = CGAffineTransformTranslate(view.transform, p.x, p.y);
    //對拖拽的位置進行初始化
    [pan setTranslation:CGPointZero inView:view];
//    NSLog(@"拖拽");
}
//4.捏合
-(void)pinchAction:(UIPinchGestureRecognizer *)pinch
{
    //試圖的TRanform屬性
    UIImageView *view = (UIImageView *)pinch.view;
    //捏合的x，y的方向
//    view.transform = CGAffineTransformMakeScale(pinch.scale, pinch.scale); //捏合后重置
    //在原有的基礎上在捏合
    view.transform = CGAffineTransformScale(view.transform, pinch.scale, pinch.scale);
    pinch.scale = 1;
    NSLog(@"捏合");
}
//3.旋轉
- (void)rotationAction:(UIRotationGestureRecognizer *)rotation
{
    //視圖的transform屬性－－－變形
    //1.獲得添加手勢的視圖
    UIImageView *p_w_picpathView = (UIImageView *)rotation.view;
    //2.旋轉的角度  (屬性，角度)
    p_w_picpathView.transform = CGAffineTransformRotate(p_w_picpathView.transform, rotation.rotation);
    rotation.rotation = 0;
    
//    NSLog(@"旋轉");
}
//2.長按
- (void)longPressAction:(UILongPressGestureRecognizer *)longPress
{
    //長按的方法在手勢的各個狀態都會觸發，所以需要進行判斷
//    longPress.state
    if (longPress .state == UIGestureRecognizerStateBegan) {
        NSLog(@"長按開始嘍噢??！");
    }else if (longPress.state == UIGestureRecognizerStateEnded){
        NSLog(@"長按結束了呢??！");
    }
}
//1.點擊點擊手勢，的觸發方法
- (void)tapAction:(UITapGestureRecognizer *)tap
{
    NSLog(@"快看，那是個塔！");
}
- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}