这似乎是一个我想念的简单问题，但我显然无法看到它。我只是想在frame上调整一个值，所以我正在复制我的视图帧：
CGRect titleFrame = titleToolbar.frame;
CGRect addressFrame = addressToolbar.frame;
CGRect toolbarFrame = toolbar.frame;
CGRect webFrame = self.view.bounds;
NSLog(@"addressToolbar.frame.size.height = %f",addressToolbar.frame.size.height);
NSLog(@"addressFrame.size.height = %f",addressFrame.size.height);
但它正在退出：
2014-02-14 17:28:33:846 Lexly[5282:2571] - addressToolbar.frame.size.height = 44.000000
2014-02-14 17:28:33:847 Lexly[5282:2571] - addressFrame.size.height = 0.000000
当addressFrame.size.height登录到44时，为什么addressToolbar.frame.size.height注销为0？
修改
addressToolbar设置在此处，在viewDidLoad的{{1}}中调用。你可以看到它是UIViewController。我在此方法中包含了对UIView的每个引用，但忽略了其他视图的初始化：
addressToolbar - (void)setupView {
//////////////////////
// Setup view
CGRect viewFrame = self.view.bounds;
CGFloat navBarHeight = self.navigationController.navigationBar.frame.size.height;
CGFloat statusBarHeight = [UIApplication sharedApplication].statusBarFrame.size.height;
addressToolbar = [[UIView alloc] initWithFrame:CGRectMake(0, navBarHeight + statusBarHeight, 320, 44)];
...
[addressToolbar addSubview:urlField];
[addressToolbar addSubview:loadingIndicator];
...
[self.view addSubview:addressToolbar];
}
的高度在创建后记录到addressToolbar。