鼠标点击scrollview 获取点击的坐标

Question

viewcontroller 新建一个scrollview 鼠标点击scrollview 获取鼠标点击scrollview上的坐标，坐标是相对scrollview的坐标

Answer 1

MyScrollView.h

@interface MyScrollView : UIScrollView
@end

MyScrollView.m

@implementation MyScrollView

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *touch = touches.anyObject;
    CGPoint touchLocation = [touch locationInView:self.window];
    NSLog(@"%@",NSStringFromCGPoint(touchLocation));
}

MyViewController.m

#import MyScrollView.h

- (void)viewDidLoad {
    MyScrollView *v = [[MyScrollView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 300.0f, 300.0f)];
    v.backgroundColor = [UIColor grayColor];
    [self.view addSubview:v];
}

然后看输出：

2012-10-16 17:53:11.513 Demo[3991:c07] {105, 143}
2012-10-16 17:53:12.627 Demo[3991:c07] {136, 310}
2012-10-16 17:53:14.519 Demo[3991:c07] {277, 313}
2012-10-16 17:53:16.718 Demo[3991:c07] {292, 312}
2012-10-16 17:53:17.344 Demo[3991:c07] {217, 198}
2012-10-16 17:53:17.776 Demo[3991:c07] {152, 155}