iOS 截图警告

发布于 2024-12-02 06:15:36 字数 602 浏览 3 评论 0原文

我需要在我的应用程序中截取一些图表的屏幕截图，

我使用以下代码：

CGRect screenRect = [[UIScreen mainScreen] bounds];
UIGraphicsBeginImageContext(screenRect.size);
CGContextRef ctx = UIGraphicsGetCurrentContext();
[[UIColor blackColor] set];
CGContextFillRect(ctx, screenRect);
[self.view.layer renderInContext:ctx];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

但在 [self.view.layer renderInContext:ctx]; 中，我收到警告 Instance method - renderInContext：未找到（返回类型默认为 id）

那么，我缺少什么？为了避免这个警告并成功拍摄我的屏幕截图？

多谢！

原文

I need to take a screen shot of some charts in my app,

Im using the following code:

CGRect screenRect = [[UIScreen mainScreen] bounds];
UIGraphicsBeginImageContext(screenRect.size);
CGContextRef ctx = UIGraphicsGetCurrentContext();
[[UIColor blackColor] set];
CGContextFillRect(ctx, screenRect);
[self.view.layer renderInContext:ctx];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

but in [self.view.layer renderInContext:ctx]; I get the warning Instance method -renderInContext: not found (return type defaults to id)

So, what Im I missing? to avoid this warning and successfully take my screen shot??

thanks a lot!

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