Autoresize Masking问题

Question

我有一个ViewController，它调用另一个包含contentView，然后webView的视图。我正在尝试在webView之上添加按钮，并试图让它们在自动调整大小掩蔽的情况下工作大约两个小时，但没有成功。当我试图重置框架旋转时，按钮需要几分钟的时间重新定位，所以它看起来很滞后。这里是我的init方法的观点：

self = [super initWithFrame:frame]; 
    if (self) { 
     _contentView = [[UIView alloc] initWithFrame:frame]; 
     _contentView.backgroundColor = [UIColor whiteColor]; 
     _contentView.clipsToBounds = YES; 
     self.clipsToBounds = YES; 

     UIImage *facebookShare = [UIImage imageNamed:@"share_facebook_focus_pad"]; 
     self.facebookButton = [[UIButton alloc] initWithFrame:CGRectMake(700, 150, facebookShare.size.width, facebookShare.size.height)]; 
     //[facebookButton setAutoresizingMask:UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleBottomMargin]; 
     [self.facebookButton setImage:facebookShare forState:UIControlStateNormal]; 
     [_webView addSubview:self.facebookButton]; 

     UIImage *twitterShare = [UIImage imageNamed:@"share_twitter_focus_pad"]; 
     self.twitterButton = [[UIButton alloc] initWithFrame:CGRectMake(self.facebookButton.frame.origin.x, self.facebookButton.frame.origin.y + facebookShare.size.height, twitterShare.size.width, twitterShare.size.height)]; 
     //twitterButton.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 
     [self.twitterButton setImage:twitterShare forState:UIControlStateNormal]; 
     [_webView addSubview:self.twitterButton]; 

     UIImage *mailShare = [UIImage imageNamed:@"share_mail_focus_pad"]; 
     self.mailButton = [[UIButton alloc] initWithFrame:CGRectMake(self.facebookButton.frame.origin.x, self.facebookButton.frame.origin.y + facebookShare.size.height + twitterShare.size.height, mailShare.size.width, mailShare.size.height)]; 
     //mailButton.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 
     [self.mailButton setImage:mailShare forState:UIControlStateNormal]; 
     [_webView addSubview:self.mailButton]; 

     [_contentView addSubview:_webView]; 
     [self addSubview:_contentView]; 

     self.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 
     self.contentView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 
     self.webView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 
     self.webView.frame = CGRectMake(CGRectGetMinX(self.frame), CGRectGetMinY(self.frame), CGRectGetWidth(self.frame), CGRectGetHeight(self.frame)); 

    } 

只是简单地添加上的_webView顶部三个按钮。我试图让他们在右上角，因此，我需要掩盖left和bottom。在这里我评论了twitter和邮件按钮，然后用Facebook按钮进行测试。我特别是将Facebook按钮设置为X坐标700 - 然而，只要我取消注释如上所示的自动大小屏蔽行，Facebook按钮消失！这是如何发生的？除非已经旋转，否则自动调整大小的蒙版不会与x坐标一起玩耍！即使如此，它应该很好地对齐它，并将其推到右上角，因为我掩盖了左侧和底部。这是怎么回事？这是非常令人沮丧的 - 我已经与它斗争了大约2个小时！

P.S：我没有使用Interface Builder。请不要暗示我使用它。

Answer 1

尝试

self.facebookButton.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 

和首先设置web视图的帧，然后添加按钮，然后尝试改变方向。