视图框架不会向下移动 20px（状态栏的高度）

Question

我使用下面的代码来呈现 vViewController1

  @property (retain,nonatomic) ViewController1 *vViewController1;

...

从 rootViewController 推送 vViewController1

  [self.navigationController pushViewController:vViewController1 animated:NO];

Viewcontroller1 的 viewWillAppear

- (void) viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];


    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) {
        CGRect screen = [[UIScreen mainScreen] bounds];
        if (self.navigationController) {
            CGRect frame = self.navigationController.view.frame;
            frame.origin.y = 20;
            frame.size.height = screen.size.height - 20;
            self.navigationController.view.frame = frame;

        } else {
            if ([self respondsToSelector: @selector(containerView)]) {
                UIView *containerView = (UIView *)[self performSelector: @selector(containerView)];

                CGRect frame = containerView.frame;
                frame.origin.y = 20;
                frame.size.height = screen.size.height - 20;
                containerView.frame = frame;
            } else {
                CGRect frame = self.view.frame;
               frame.origin.y = 20;
               frame.size.height = screen.size.height - 20;
                self.view.frame = frame;

            }
        }
    }  

}

但显示如下，并没有向下移动20px(状态栏高度)

欢迎您的评论

Answer 1

假设你没有使用自动布局（因为你正在玩框架尺寸）然后在情节提要中 select ViewController 然后转到尺寸检查器（小尺子）然后调整 Y视图的增量（根据您使用的模式更改为 20 或 -20 "View As"）。

这可能会有所帮助 here 尽管我不确定 Y 中的 18 值我一直认为它是 20！

视图框架不会向下移动 20px（状态栏的高度）

view frame does not move down 20px (height of the statusbar)

iphone

ios

ios7

ios8