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>