iOS手势-UITapGestureRecognizer

1. UITapGestureRecognizer（点按）基本介绍

• 父类是UIGestureRecognizer

2. UITapGestureRecognizer应用

//创建手势识别器对象
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] init];

//设置手势识别器对象的具体属性
// 连续敲击2次
tap.numberOfTapsRequired = 2;
// 需要2根手指一起敲击
tap.numberOfTouchesRequired = 2;

//添加手势识别器到对应的view上
[self.iconView addGestureRecognizer:tap];

//监听手势的触发
[tap addTarget:self action:@selector(tapIconView:)];

3. UITapGestureRecognizer属性

// 要求的点击次数，默认为1次
@property (nonatomic) NSUInteger  numberOfTapsRequired;

// 要求的手指触摸数量，默认为1个
@property (nonatomic) NSUInteger  numberOfTouchesRequired __TVOS_PROHIBITED;