使用iOS 8自定义键盘发送图像？ [英] Sending images with iOS 8 custom keyboard?

问题描述

我一直在为iOS 8开发自定义键盘，但在尝试使用键盘发送图像时遇到了问题。我做了一些研究，似乎没有一种简单的方法可以用 UITextDocumentProxy 来做到这一点，因为只有 NSStrings 是允许。

I've been developing a custom keyboard for iOS 8, but stumbled upon a problem trying to send images using the keyboard. I did some research and it seems like there isn't a simple way to do this with UITextDocumentProxy because only NSStrings are allowed.

我是否忽略了使用自定义键盘发送图像的简单方法和/或有没有办法解决这个问题？

Am I either overlooking any simple ways to use a custom keyboard to send images and/or is there any way to work around this issue?

提前致谢

推荐答案

显然，你不是唯一一个尝试这样的键盘的人。如果您查看网站上的动画GIF，键盘会使用复制/粘贴将图像添加到消息中。

Apparently, you are not the only person to try a keyboard like this. If you look at the animated GIF on the site, the keyboard uses copy/paste to add the image to the messages.

UIKeyInput Protocol ，由 UITextDocumentProxy 继承，以下函数：

The UIKeyInput Protocol, which is inherited by UITextDocumentProxy, has the following function:

func insertText(_ text: String)     //Swift
- (void)insertText:(NSString *)text //ObjC

正如您所知，这些只接受String或NSString。因为没有其他方法可以插入内容，所以可以假设目前没有其他方法。

These only take a String or an NSString, as you already know. Because there are no other methods to insert content, it can be assumed that, currently, there is no other way.

现在，我建议你采用类似的方式用法。当用户点击图像时，将其添加到UIPasteboard。也许在键盘上方放置一个小横幅，上面写着你现在可以粘贴等等，但这取决于你自己决定。

Right now, I would suggest that you adopt a similar usage. When the user taps on the image, add it to the UIPasteboard. Maybe present a little banner on top of the keyboard saying, "You can now paste" or something, but that would be up to you to decide.

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