UIView 子类不会自动调整大小 [英] UIView subclass won't autoresize

问题描述

我一直在寻找有关调整大小的背景信息，但找不到太多.我知道我需要在超级视图上设置 autoresizesSubviews 并在子视图上设置 autoresizingMask.

I've been looking for background information on resizing, but I haven't been able to find much. I know I need to set autoresizesSubviews on the superview and autoresizingMask on the subview.

我已经这样做了，我的 UIImageViews 正确调整了大小，但我的自定义 UIView 子类没有.

I have done this, and my UIImageViews properly resize, but my custom UIView subclass does not.

UIImageView 的代码:

The code for the UIImageView:

UIImageView *newX = [[[UIImageView alloc] initWithImage:dot] autorelease];
[newX setAutoresizingMask:UIViewAutoresizingFlexibleWidth];
[newX setFrame:CGRectMake(0, 0, self.view.bounds.size.width, 1)];
[self.view addSubview:newX];

自定义 UIView 子类的代码:

The code for the custom UIView subclass:

trace = [[TraceView alloc] initWithFrame:self.view.bounds];
[trace setAutoresizingMask:(UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleRightMargin)];
[self.view addSubview:trace];

据我所知，视图按预期旋转，但不会调整大小.我再也看不到它的底部，它也没有填满右边的屏幕.我是否必须向 UIView 子类添加任何内容才能正确调整大小?

From what I can tell, the view rotates as expected, but does not resize. I can no longer see the bottom of it, and it doesn't fill the screen to the right. Do I have to add anything to the UIView subclass to make resizing work properly?

我已将 autoresizingMake 更改为 (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight) 并调用 [subview setNeedsDisplay]; 我不知道为什么这是必要的，因为 UIImageViews 没有它就可以正常工作，但现在它的行为符合预期.

I've changed the autoresizingMake to (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight) and called [subview setNeedsDisplay]; I'm not sure why this is necessary as the UIImageViews work fine without it, but it now behaves as expected.

推荐答案

我认为您缺少子视图上的 UIViewAutoresizingFlexibleHeight 或宽度.否则我认为视图只是根据边距移动但不会调整大小.

I think you're missing UIViewAutoresizingFlexibleHeight or width on the subview. Otherwise I think the view just moves around according to the margins but doesn't resize.

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