UIView应用hitTest添加点击事宜

by 伍雪颖
[img]http://img.blog.csdn.net/20150104000303134?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcmFpbmxlc3Zpbw==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    CGPoint point = [[touches anyObject] locationInView:self.view];
    CALayer *layer = [self.view.layer hitTest:point];
    if (layer == self.blueView.layer) {
                                            message:nil
                                   delegate:nil
                          cancelButtonTitle:@"OK"
                          otherButtonTitles:nil] show];
    }
}