行号，在TextView的code高亮 [英] Line Numbers, Code Highlighting in TextView

问题描述

我正在为Android的IDE - 这可能是短期的编辑脚本/制作快速的调整文件很有用。目前，我只是用了一个简单的EditText，但我想增加几个功能，例如行号下的EditText和code高亮的左侧。

I'm working on an 'IDE' for Android - it could be useful for editing short scripts / making quick adjustments to files. At the moment I'm just using a simple EditText, but I am wanting to add several features, for example Line Numbering down the left hand side of the EditText and Code Highlighting.

有没有人对如何处理这有什么建议？对于code高亮，我猜我需要写我自己的EditText的子类。对于行号，我可以有一个具有相同的文本大小的EditText上??

Does anyone have any suggestions about how to approach this? For the code highlighting, I'm guessing I'll need to write my own subclass of EditText. For the line numbering, could I have a thin vertical TextView that has the same text size as the EditText??

是的，我是一个手机大小的屏幕上清楚编辑code是痛苦的。

Yes, I'm aware editing code on a mobile sized screen is painful.

谢谢！

推荐答案

该公司股价现应用程序使用HTML视图（的 android.webkit.WebView ）来包装甚至文本电子邮件，HTML中。也许渲染code到HTML，并在网页视图显示将有语法高亮的好方法。

The stock Email application uses an html view (android.webkit.WebView) to wrap even text emails in html. Perhaps rendering the code into html and displaying in a WebView would be a good way to get syntax highlighting.

有关行号时，旁边的EditText薄的TextView似乎是合理的。你可能想将其封装到自己的视图类，可以同时处理子视图 - 并允许行号被打开和关闭（也许还有其他的做的好东西一样保持文字大小都等于）

For line numbering, the thin TextView beside the EditText seems reasonable. You might want to encapsulate it into your own View class that handles both subviews - and allows line numbers to be turned on and off (and perhaps does other good things like keep text size of both equal)

我觉得Android的一个IDE是一个好主意。将是不错的能够code在飞机上，而无需获得餐桌参与=）

I think an ide for Android is a good idea. Would be nice to be able to code on an airplane without having to get the tray table involved =)

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