用的EditText非可选变灰preFIX [英] EditText with non-selectable grayed out prefix

问题描述

我正在寻找一种方式有一个变灰的文本作为一个EditText preFIX。这段文字应该是不可选。
这是一个有点像要在您撰写与Gmail的信息中。唯一的（视觉）不同的是，当你开始输入该文本将消失。

I'm looking for a way to have a grayed out text as prefix in an EditText. This text should be not selectable. It's a bit like the To field when you're composing a message with Gmail. The only (visual) difference is that this text disappears when you start typing.

有什么诀窍在Android中实现这一目标？

Is there any trick to achieve this in Android?

谢谢！

推荐答案

作为一个最终的解决方案，您可以通过扩展它在某种程度上，它具有自定义背景被设置修改它改写了充分的EditText类，一predefined填充您所设定。

As an ultimate solution, you can rewrite the full EditText class by extending it and modifying it in a way that it has a custom Background set by you, and a predefined padding set by you.

把欧元为背景，在左侧定位，然后，得到的EditText的起始填充在这样一种方式，文中的用户类型，启动欧元文本之后

Put the EUR as the background, positioning it in the left side, and then give the starting padding of the EditText in such a way that the text the user types, starts right after the EUR text.

这也许算是一个矫枉过正或-穷人的解决了这个问题，但仍然是其最终的选择。不是最聪明的一个部分可能是，我也不知道它肯定会工作：P

This maybe regarded as an overkill or a poor-man's solution to this problem, but still its the ultimate option. Not the smartest one perhaps, and I also don't know if its gonna work for sure :P

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