Android OnKeyListener不工作

我希望四个edittext插入像ABC-0000-0000-0000这样的数据，因为当一个edittext填充时，我应用了textwatcher向前移动，当按下delete键时，它应该向后移动

我的代码是-

EditText.OnKeyListener returnKeyListener=新建EditText.OnKeyListener（）{

---

当keycode事件发生时，添加

return true；

。如果没有它，侦听器将无法启动

     @Override
    public boolean onKey(View v, int keyCode, KeyEvent event) {

        if (keyCode == KeyEvent.KEYCODE_DEL) {

            if (v.getId() == editToken_4.getId() && (TextUtils.isEmpty(editToken_4.getText())) || editToken_4.getSelectionStart()==0) {

                editToken_3.setSelection(editToken_3.getText().length());
                editToken_3.requestFocus();

            }

            if (v.getId() == editToken_3.getId() && (TextUtils.isEmpty(editToken_3.getText())) || editToken_3.getSelectionStart()==0 ) {

                editToken_2.setSelection(editToken_2.getText().length());
                editToken_2.requestFocus();

            }

            if (v.getId() == editToken_2.getId() && (TextUtils.isEmpty(editToken_2.getText())) || editToken_2.getSelectionStart()==0){

                editToken_1.setSelection(editToken_1.getText().length());
                editToken_1.requestFocus();
            }
            return true;   //add this
        }

        return false;
    }
};

---

当keycode事件发生时，添加

return true；

。如果没有它，侦听器将无法启动

     @Override
    public boolean onKey(View v, int keyCode, KeyEvent event) {

        if (keyCode == KeyEvent.KEYCODE_DEL) {

            if (v.getId() == editToken_4.getId() && (TextUtils.isEmpty(editToken_4.getText())) || editToken_4.getSelectionStart()==0) {

                editToken_3.setSelection(editToken_3.getText().length());
                editToken_3.requestFocus();

            }

            if (v.getId() == editToken_3.getId() && (TextUtils.isEmpty(editToken_3.getText())) || editToken_3.getSelectionStart()==0 ) {

                editToken_2.setSelection(editToken_2.getText().length());
                editToken_2.requestFocus();

            }

            if (v.getId() == editToken_2.getId() && (TextUtils.isEmpty(editToken_2.getText())) || editToken_2.getSelectionStart()==0){

                editToken_1.setSelection(editToken_1.getText().length());
                editToken_1.requestFocus();
            }
            return true;   //add this
        }

        return false;
    }
};

---

我这样做了，但cursur仍然没有在seond if条件和

if（keyCode==KeyEvent.keyCode_DEL）内移动backwordprint日志

要查看事件是否被调用，我应用了日志，事件没有调用code正在处理棉花糖和棒棒糖，它不处理jellybean和Kitkat。请看：我做了，但cursur仍然没有在seond if条件和

if（keyCode==keycevent.keyCode\u DEL）内移动backwordprint日志

若要查看事件是否被调用，i applicated log，event is not calling code正在处理棉花糖和棒棒糖，它不处理jellybean和Kitkat请参见：

     @Override
    public boolean onKey(View v, int keyCode, KeyEvent event) {

        if (keyCode == KeyEvent.KEYCODE_DEL) {

            if (v.getId() == editToken_4.getId() && (TextUtils.isEmpty(editToken_4.getText())) || editToken_4.getSelectionStart()==0) {

                editToken_3.setSelection(editToken_3.getText().length());
                editToken_3.requestFocus();

            }

            if (v.getId() == editToken_3.getId() && (TextUtils.isEmpty(editToken_3.getText())) || editToken_3.getSelectionStart()==0 ) {

                editToken_2.setSelection(editToken_2.getText().length());
                editToken_2.requestFocus();

            }

            if (v.getId() == editToken_2.getId() && (TextUtils.isEmpty(editToken_2.getText())) || editToken_2.getSelectionStart()==0){

                editToken_1.setSelection(editToken_1.getText().length());
                editToken_1.requestFocus();
            }
            return true;   //add this
        }

        return false;
    }
};