如何更改 UIImagePickerController 裁剪框
当打开使用 UIImagePickerController 并设置 allowedImageEditing = YES 时； 默认裁剪框为 320x320。 就我而言，我想将横向图像的裁剪框设置为 320x240，将纵向图像设置为 240x320。 但是，我一直无法找到一种方法来更改编辑/裁剪照片时使用的 320x320 框架。 你们有人找到办法了吗？
谢谢！
when opening working with an UIImagePickerController and setting allowsImageEditing = YES; there is a default cropping frame that is 320x320. In my case, I would like to setup that cropping frame to 320x240 for images that are landscape, and 240x320 for images that are portrait. However, I haven't been able to find a way to change that 320x320 frame that is used when editing /cropping a photo. Has any of you found a way to do it?
Thanks!
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（3）
你必须自己实现它。
选取器仅执行 320x320 裁剪。
因此，请设置
allowedImageEditing = NO;
现在您将获得完整的图像。 然后，您将必须创建一个视图/视图控制器，它将裁剪为您想要的比例。
You have to implement it your self.
The picker only performs 320x320 cropping.
So instead set
allowsImageEditing = NO;
Now you will get the full image back. Then you will have to create a view/view controller that will crop to the proportions you desire.
您可以尝试 ShittyImageCrop。 它非常适合裁剪为特定的纵横比。 在您的情况下，将其显示为宽高比 4:3（或横向 3:4），如下所示：
之后，您可以使用其他一些代码将其缩放到所需的分辨率（320x240 或 240x320）。
You can try ShittyImageCrop. It's good for cropping to a specific aspect ratio. In your case, present it with aspect ratio 4:3 (or 3:4 in landscape) like this:
After that you can use some other code to just scale it to desired resolution (320x240 or 240x320).
这是最新的答案，其中包含必要的手动裁剪代码：手动裁剪
仍然无法逃避艰苦的工作。
This is the more recent answer with the necessary manual cropping code: Manual Crop
There is still no escaping the hard work.