prevent回车键上的EditText，但仍显示文本的多线 [英] Prevent enter key on EditText but still show the text as multi-line

问题描述

我如何在Android上一个EditText，使得用户不能输入多行文本，但显示效果还是多行（即有自动换行，而不是文字去到正确的）？

How do I make an EditText on Android such that the user may not enter a multi-line text, but the display is still multi-line (i.e. there is word-wrap instead of the text going over to the right)?

它类似于内置的，我们可以不输入新行，但文字会显示在多行的短信应用程序。

It's similar to the built-in SMS application where we can't input newline but the text is displayed in multiple lines.

推荐答案

我会继承窗口小部件并覆盖关键事件处理，以阻止<​​code>输入键：

I would subclass the widget and override the key event handling in order to block the Enter key:

class MyTextView extends EditText
{
    ...
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event)
    {
        if (keyCode==KeyEvent.KEYCODE_ENTER) 
        {
            // Just ignore the [Enter] key
            return true;
        }
        // Handle all other keys in the default way
        return super.onKeyDown(keyCode, event);
    }
}

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