iOS手势总结

1.轻拍手势

- (void)tapGestureRecognizer
{
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] init];
    [tap addTarget:self action:@selector(tapActipon:)];
    [_bgView addGestureRecognizer:tap];
}
- (void)tapActipon:(UITapGestureRecognizer *)tap
{
    NSLog(@"tap");
}

2.长按手势

- (void)longPressRecognizer
{
    UILongPressGestureRecognizer *press = [[UILongPressGestureRecognizer alloc] init];
    [press addTarget:self action:@selector(longPressAction:)];
    [_bgView addGestureRecognizer:press];
}
- (void)longPressAction:(UILongPressGestureRecognizer *)press
{
    NSLog(@"press");
}

3.轻扫手势

-(void)swipeGestureRecognizer
{
    UISwipeGestureRecognizer *swipe =[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeAction:)];
    
    //一个清扫手势  只能有两个方向(上和下) 或者 (左或右)
    //如果想支持上下左右清扫  那么一个手势不能实现  需要创建两个手势
    swipe.direction =UISwipeGestureRecognizerDirectionLeft | UISwipeGestureRecognizerDirectionRight;
    
    [_bgView addGestureRecognizer:swipe];
}
-(void)swipeAction:(UISwipeGestureRecognizer *)swipe
{
    NSLog(@"swipe");
}

4.平移手势

-(void)panGestureTecognizer
{
    UIPanGestureRecognizer *pan =[[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(panAction:)];
    //添加到指定视图
    [_bgView addGestureRecognizer:pan];
    
}
-(void)panAction:(UIPanGestureRecognizer *)pan
{
     CGPoint position =[pan translationInView:_bgView];
    //通过stransform 进行平移交换
    _bgView.transform = CGAffineTransformTranslate(_bgView.transform, position.x, position.y);
    //将增量置为零
    [pan setTranslation:CGPointZero inView:_bgView]; 
}

5.捏合手势

-(void)pinchGestureRecognizer
{ 
    UIPinchGestureRecognizer *pinch =[[UIPinchGestureRecognizer alloc]initWithTarget:self action:@selector(pinchAction:)];
    //添加到指定视图
    [_bgView addGestureRecognizer:pinch];
}
-(void)pinchAction:(UIPinchGestureRecognizer *)pinch
{
    //通过 transform(改变) 进行视图的视图的捏合
    _bgView.transform =CGAffineTransformScale(_bgView.transform, pinch.scale, pinch.scale);
    //设置比例为 1
    pinch.scale = 1;
}

6.旋转手势

-(void)rotationGestureRecognizer
{
    UIRotationGestureRecognizer *rotation =[[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector(rotationAction:)];
    //添加到指定的视图
    [_bgView addGestureRecognizer:rotation];
    
}
-(void)rotationAction:(UIRotationGestureRecognizer *)rote
{
    
    //通过transform 进行旋转变换
    _bgView.transform = CGAffineTransformRotate(_bgView.transform, rote.rotation);
    //将旋转角度 置为 0
    rote.rotation = 0; 
}

7.边缘手势

-(void)screenEdgePanGestureRecognizer
{
    UIScreenEdgePanGestureRecognizer *screenPan = [[UIScreenEdgePanGestureRecognizer alloc]initWithTarget:self action:@selector(screenPanAction:)];
    [_bgView addGestureRecognizer:screenPan];
}

-(void)screenPanAction:(UIScreenEdgePanGestureRecognizer *)screenPan
{
    NSLog(@"边缘");
}