重绘视图关闭屏幕 - 包含选取器视图和工具栏 [英] redraw view off screen - contains picker view and tool bar

问题描述

我试图绘制/放置一个视图（包含一个选择器视图和一个工具栏在屏幕外）。在启动时，尽管在viewDidLoad中更改了坐标，View仍然在屏幕上。

Im trying to draw/place a view (which contains a picker view and a toolbar offscreen). On launch the View is still on the screen despite changing its coordinates in viewDidLoad.

 self.pickerViewContainer.frame = CGRectMake(0, 722, 320, 207);

我正在使用故事板。我在故事板中创建了视图，在视图控制器中可见。我想我可以按照上面的坐标在屏幕上重绘它。

Im using the storyboard. I have created the view in the storyboard, visible in the view controller. I thought i could redraw it off screen as per coordinates above.

推荐答案

使用自动布局时在 viewDidLayoutSubviews


中写下您的视图框架相关代码这是一个解决方案

When you use Auto layout write your view's frame related code in viewDidLayoutSubviews
Here is a solution

-(void) viewDidLayoutSubviews
{
self.pickerViewContainer.frame = CGRectMake(0, 722, 320, 207);
}

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