编辑文字按键侦听器 [英] Edit Text key listener

问题描述

我在布局中有一个edittext和一个按钮，在我的代码中，我将edittext的keyListener设置为空

I have an edittext and a button in my layout and in my code I'm setting keyListener of the edittext as null

    editText.setKeyListener(null);

，所以我不能键入我的edittext.现在在我的按钮上单击，我应该能够输入我的ediitext.我怎样才能做到这一点.这是一个简单的问题，但是我找不到任何解决方案.任何帮助将不胜感激.

so that I cannot type into my edittext. Now on my button click I should be able to type into my ediitext. How can I do that. It's a simple problem, but I'm not able to find any solution. Any help would be much appreciated.

推荐答案

我现在可能迟到了，但这是我的方法:

I'm probably late now but, this is the way I do it:

public class MyActivity extends Activity
{
    private KeyListener listener;
    private EditText editText;

    public void onCreate(...)
    {
        editText = ... // Get EditText from somewhere
        listener = editText.getKeyListener(); // Save the default KeyListener!!!
        editText.setKeyListener(null); // Disable input
    }

    // When you click your button, restore the default KeyListener
    public void buttonClickHandler(...)
    {
        editText.setKeyListener(listener);
    }
}

基本上，在调用setKeyListener(null)之前，首先保存 EditText 的默认 KeyListener .然后，当您单击按钮时，再次调用setKeyListener，并传递您先前保存的默认侦听器.

Basically, you first save the EditText's default KeyListener before you call setKeyListener(null). Then, when you click your button, you call setKeyListener again, passing the default listener you previously saved.

这篇关于编辑文字按键侦听器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！