ios uiimageview+webcache怎么使用

ios uiimageview+webcache怎么使用

千锋扣丁学堂iOS开发为您解答：UIImageView并不像UIButton一样，点点鼠标就可以关联点击事件，也不像Android里有onClickListener，这里需要借助于UITapGestureRecognizer类。从类名上就可以看出，这个类就是用于处理tap(单击)事件的。 bbc和voaspecial是UIImageView对象 1234 [bbc setUserInteractionEnabled:YES]; [voaspecial setUserInteractionEnabled:YES]; [bbc addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(clickCategory:)]]; [voaspecial addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(clickCategory:)]]; 经测试，多个UIImageView不能共用一个UITapGestureRecognizer对象，之前调用的会。 根据点击的view判断来自谁的点击。 -(void)clickCategory:(UITapGestureRecognizer *)gestureRecognizer{ NSLog(@"click"); NSLog(@"%hhd",[gestureRecognizer isMemberOfClass:[UITapGestureRecognizer class]]); UIView *viewClicked=[gestureRecognizer view]; if (viewClicked==bbc) { NSLog(@"bbc"); }else if(viewClicked==voaspecial) { NSLog(@"voaspecial"); } }