在Android中使用虚拟键盘按下捕捉键？

Question

与物理键盘，您可以赶上一个KeyListener按键，类似：

myEditText.setOnKeyListener(new OnKeyListener() { 
    @Override 
    public boolean onKey(View v, int keyCode, KeyEvent event) { 
     if (keyCode == KeyEvent.KEYCODE_ENTER) { 
      /* do something */ 
     } 
    } 
}); 

有谁知道如何做到这一点（或类似）与虚拟键盘？

Answer 1

到目前为止，我还没有在android中找到任何虚拟键盘的监听器。我找到了一个替代解决方案，即我使用TextChanged事件来检索编辑文本中输入的键的值。

import android.app.Activity; 
    import android.os.Bundle; 
    import android.text.Editable; 
    import android.text.TextWatcher; 
    import android.util.Log; 
    import android.view.KeyEvent; 
    import android.view.View; 
    import android.view.View.OnKeyListener; 
    import android.widget.EditText; 
    import android.widget.TextView; 
    import android.widget.Toast; 

    public class ShowKeypad extends Activity { 
     /** Called when the activity is first created. */ 
     @Override 
     public void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
      setContentView(R.layout.main); 
      EditText emailTxt = (EditText) findViewById(R.id.editText); 

      emailTxt.addTextChangedListener(new TextWatcher() 
      { 
        public void afterTextChanged (Editable s){ 
          Log.d("seachScreen", "afterTextChanged"); 
        } 
        public void beforeTextChanged (CharSequence s, int start, int 
          count, int after) 
        { 
          Log.d("seachScreen", "beforeTextChanged"); 
        } 
        public void onTextChanged (CharSequence s, int start, int before, 
          int count) 
        { 
          Log.d("seachScreen", s.toString()); 
        } 

      final TextView tv = (TextView)findViewById(R.id.tv); 
    }); 
    } 

}