iphone SDK：如何实现签名捕获？ [英] iphone SDK: How to implement a signature capture?

问题描述

如何捕获用户签名？这个想法是用户将用他们的手指在一个盒子里绘制他们的签名。部分保存过程是将此图像写入其照片文件夹。

How can I capture a users signature? The idea is that the user will use their fingers to draw their signature in a box. Part of the saving process will be to write this image to their Photos folder.

推荐答案

我认为这样做会。

http：// www。 ipodtouchfans.com/forums/showthread.php?t=132024

之后，我认为保存屏幕截图的功能可以完成任务。 / p>

After that, I think the ability to save a screen capture will do the job.

UIGraphicsBeginImageContext(self.view.bounds.size); //self.view.window.frame.size
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
UIImageWriteToSavedPhotosAlbum(viewImage, nil, nil, nil);

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