UIView::addSubView 遮挡了原本位于顶部的导航栏
我为 ipad 设备设计了一个非常简单的界面：UIView + 导航栏。
然后，在视图加载后，它将从某个位置下载图像并使用以下方法来显示它：
-(void)connectionDidFinishLoading:(NSURLConnection *)connection{
UIImage* testImg = [UIImage imageWithData:_networkData];
UIImageView* testView = [[UIImageView alloc] initWithImage:testImg];
[_view addSubview:testView];
[testView release];
}
现在的问题是新的 UIImage 占据了 Ipad 的整个可见区域。
我想知道如何解决这个问题？我想我必须找出原始视图中显示区域的框架，然后将其分配给 UIImageView 实例？
I designed a very simple interface for an ipad device: UIView + a navigation bar.
Then after the view is load, it will download an image from a location and use the following method to display it:
-(void)connectionDidFinishLoading:(NSURLConnection *)connection{
UIImage* testImg = [UIImage imageWithData:_networkData];
UIImageView* testView = [[UIImageView alloc] initWithImage:testImg];
[_view addSubview:testView];
[testView release];
}
The problem is now the new UIImage occupies the whole visible area of the Ipad.
I wonder how can I fix this issue? I suppose I have to find out the frame of the display area in the original view, and then assign it to the UIImageView instance?
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initWithImage将自动调整框架以匹配您传入的图像的大小。要告诉UIImageView采用与其父视图相同的大小，您只需添加在添加子视图之前添加以下行：...我们使用
bounds而不是frame因为超级视图可能具有我们不希望图像视图具有的偏移量。initWithImagewill automatically adjust the frame to match the size of the image you're passing in. To tell theUIImageViewto take the same size as its parent view you could just add the following line before you add the subview:...we use
boundsrather thanframebecause the superview may have an offset that we don't want the image view to have.