EditText with single text line, line wrapping and

问题:

I am trying to have an EditText with the following characteristics when editing with a soft key. I ready the documentation, searched here, play with the parameters but could not find a working configuration.

1. The EditView view on the screen has height for a few lines (e.g. 3-4).
2. The content text is a single line (that is, no line breaks).
3. If the content text is longer than the view's width it should wrap to next line
4. The Enter key of the soft key shows the Done action label.

I could achieve {1,2,3} and {1,2,4} but not {1,2,3,4}. My rational is that since the content is a single line (no line breaks) the Enter key is not used and thus should be able to be changed to the Done label.

My setup code looks like this

editText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_FLAG_CAP_SENTENCES | InputType.TYPE_TEXT_FLAG_IME_MULTI_LINE);
editText.setHorizontallyScrolling(false);
editText.setSingleLine(false);
// This does not work. Soft keyboard has Enter action.
editText.setImeOptions(EditorInfo.IME_ACTION_DONE);

Is it possible? Any suggestion?

回答1:

This combination (and the specific order of the EditText method calls) should produce the configuration that you want:

  editText.setInputType(
    InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_FLAG_CAP_SENTENCES);
  editText.setSingleLine(true);
  editText.setLines(4); // desired number of lines
  editText.setHorizontallyScrolling(false);
  editText.setImeOptions(EditorInfo.IME_ACTION_DONE);

回答2:

Just add

editText.setHorizontallyScrolling(false);
editText.setMaxLines(Integer.MAX_VALUE);

with your edittext instance in your activity programmatically.

It configures the EditText instance so that the user edits a single-line string that is displayed with soft-wrapping on multiple lines with IME options.