iOS---给视图添加手势
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | 初始化手势同时添加手势事件---把手势添加到视图上 // 1.轻拍手势类 // 创建一个轻拍手势 同时绑定了一个事件 UITapGestureRecognizer *aTapGR = [[UITapGestureRecognizer alloc] initWithTarget: self action: @selector (tapGRAction:)]; // 设置轻拍次数 aTapGR.numberOfTapsRequired = 1; // 设置手指触摸的个数 aTapGR.numberOfTouchesRequired = 2; // 添加手势 [ self .rootView addGestureRecognizer:aTapGR]; [aTapGR release]; // 2.长按手势 UILongPressGestureRecognizer *longPressGR = [[UILongPressGestureRecognizer alloc] initWithTarget: self action: @selector (longPressAction:)]; [ self .rootView addGestureRecognizer:longPressGR]; [longPressGR release]; // 3.旋转手势 UIRotationGestureRecognizer *rotationGR = [[UIRotationGestureRecognizer alloc] initWithTarget: self action: @selector (rotationAction:)]; [ self .rootView.testImageView addGestureRecognizer:rotationGR]; [rotationGR release]; // 4.捏合手势 UIPinchGestureRecognizer *pinchRG = [[UIPinchGestureRecognizer alloc] initWithTarget: self action: @selector (pinchAction:)]; [ self .rootView addGestureRecognizer:pinchRG]; [pinchRG release]; // 5.平移手势 UIPanGestureRecognizer *panGR = [[UIPanGestureRecognizer alloc] initWithTarget: self action: @selector (panGRAction:)]; [ self .rootView.testImageView addGestureRecognizer:panGR]; [panGR release]; // 6.轻扫手势 UISwipeGestureRecognizer *swipeGR = [[UISwipeGestureRecognizer alloc] initWithTarget: self action: @selector (swipeGRAction:)]; // 设置滑动方向 默认是从左往右 swipeGR.direction = UISwipeGestureRecognizerDirectionLeft; // 设置向左滑动 [ self .rootView.testImageView addGestureRecognizer:swipeGR]; [swipeGR release]; // 7.屏幕边缘轻扫识别器 UIScreenEdgePanGestureRecognizer *screenPGR = [[UIScreenEdgePanGestureRecognizer alloc] initWithTarget: self action: @selector (screenEdgeGRAction:)]; [ self .rootView addGestureRecognizer:screenPGR]; [screenPGR release]; |
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