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[操作系统]解决UIScrollView 的点击事件


目前有两种方法

第一种 通过 Category 扩展 UIScrollView 对象,添加触摸事件,(不建议,后续扩展不方便)代码如下

@implementation UIScrollView (ExtendTouch)- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {  [[self nextResponder] touchesBegan:touches withEvent:event];  [super touchesBegan:touches withEvent:event];  UITouch *touch = [touches anyObject];  CGFloat startx = [touch locationInView:self].x;  NSLog(@"%f",startx);}-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {  [[self nextResponder] touchesMoved:touches withEvent:event];  [super touchesMoved:touches withEvent:event];}- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {  [[self nextResponder] touchesEnded:touches withEvent:event];  [super touchesEnded:touches withEvent:event];}

 第二种 添加手势 (推荐,易于维护)

    //添加点按击手势监听器  UITapGestureRecognizer *tapGesture=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapUiscrollView:)];  //设置手势属性  tapGesture.delegate = self;  tapGesture.numberOfTapsRequired=1;//设置点按次数,默认为1,注意在iOS中很少用双击操作  tapGesture.numberOfTouchesRequired=1;//点按的手指数  [self.scrllview addGestureRecognizer:tapGesture];

  

@interface ViewController ()<UIScrollViewDelegate,UIGestureRecognizerDelegate>