EditText with non-selectable grayed out prefix

问题

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.

Is there any trick to achieve this in Android?

Thanks!

回答1:

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.

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.

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

All the best!

回答2:

You can use an image of the part "EUR 2500". this you can display in your editbox without affecting the rest of the part. Follow the code:

Drawable editTextDrawable = context.getResources().getDrawable(imageId);
    editTextDrawable.setBounds(0, 0, editTextDrawable.getIntrinsicWidth(),
            editTextDrawable.getIntrinsicHeight());

The drawable can be used inside the edittext as follows:

editTxtItemName.setCompoundDrawables(,
            ListViewConstants.editTextDrawable, null, null, null);

来源：https://stackoverflow.com/questions/5470250/edittext-with-non-selectable-grayed-out-prefix