水平和垂直重复图像 [英] Repeat image horizontally and vertically

问题描述

我想重复以下图片：

以实现以下背景：

我尝试了几个代码如下：

I tried a few codes as follow:

bluePatternView.backgroundColor = [UIColor colorWithPatternImage:
    [[UIImage imageNamed:@"blue_pattern.png"] stretchableImageWithLeftCapWidth:0 topCapHeight:0]];

和：

bluePatternView.backgroundColor = 
    [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"blue_pattern.png"]];

我还尝试使用CGContextDrawTiledImage绘制图像但没有成功。

I also tried to draw image with CGContextDrawTiledImage with no success.

如何做到这一点？！

编辑：执行luk2302的结果。请通过upvoting给予他认可

bluePatternView.backgroundColor = 
  [UIColor colorWithPatternImage:[UIImage imageNamed:@"blue_pattern.png"]];

结果：

推荐答案

正如我的评论已经说过：使用

As my comment already said: use

bluePatternView.backgroundColor = 
  [UIColor colorWithPatternImage:[UIImage imageNamed:@"blue_pattern.png"]];

您不想拉伸图像。让UIKit处理重复。

You dont want to stretch your image. Let UIKit take care of the repetition.

假设你的bluePatternView是你想要将模式设置为背景的实际大视图。如果该代码仍无法正常工作，您可能正在设置错误视图的背景属性。

Assuming that your bluePatternView is the actual large view for which you want to set a pattern as background. Maybe you are setting the background property of the wrong view if that code is still not working.

注意：重复 SAME 带有@ 2x和@ 3x扩展名的图片将导致更好的分辨率设备正常运行。

Note: duplicating the SAME image with @2x and @3x extension will lead to behaive properly for better resolution devices.

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