如何填补的UIView的背景图片 [英] How to fill background image of an UIView

问题描述

我有一个的UIView 和我设置这样一个背景图片：

I have an UIView and I set a background image in this way:

self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"sfond-appz.png"]];

我的问题是，回图像的视图内不集中，但它的重播有时填补所有的视图。有没有一种方法，以中心内部的UIView和scretch图像具有屏幕尺寸？

My problem is that back-image is not centered inside the view, but it's replayed some times to fill all the view. Is there a way to center image inside uiview and scretch to have screen size?

请注意：我不能使用的UIImageView 背景，因为我有一个滚动视图

Note: I can't use UIImageView for background cause I have a scrollview.

推荐答案

您需要事先处理图像，使一个中心，拉伸图像。
试试这个：

You need to process the image beforehand, to make a centered and stretched image. Try this:

UIGraphicsBeginImageContext(self.view.frame.size);
[[UIImage imageNamed:@"image.png"] drawInRect:self.view.bounds];
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

self.view.backgroundColor = [UIColor colorWithPatternImage:image];

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