Android 如何将ResourceId从片段发送到另一个类

我正在片段中实现自定义键盘。我想将位于片段UI中的EditText的ResourceId发送到自定义键盘类。我在自定义键盘类中接收ResourceId时收到NullPointerException，这意味着ResourceId未被发送

我实现的代码是：

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {

    rootView = inflater.inflate(R.layout.fragment_barcode_detail,
            container, false);
    inflater = (LayoutInflater) mActivity
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
editText_barcode = (EditText) rootView
            .findViewById(R.id.editText_barcode);
mCustomKeyboard = new CustomKeyboard(mActivity, R.id.keyboardview,R.xml.hexkbd);
    System.out.println("====inac====" + R.id.editText_barcode);
    mCustomKeyboard.registerEditText(mActivity, R.id.editText_barcode);

    return rootView;
}

自定义键盘类为：

class CustomKeyboard {


private KeyboardView mKeyboardView;
/** A link to the activity that hosts the {@link #mKeyboardView}. */
private Activity mHostActivity;
private  EditText edittext;


public CustomKeyboard(Activity host, int viewid, int layoutid) {
    mHostActivity= host;
    mKeyboardView= (KeyboardView)mHostActivity.findViewById(viewid); //   
Getting Resourceid successfully 
    mKeyboardView.setKeyboard(new Keyboard(mHostActivity, layoutid));
    mKeyboardView.setPreviewEnabled(false); 
    mKeyboardView.setOnKeyboardActionListener(mOnKeyboardActionListener);

 }

public void registerEditText( int resid) {
    // Find the EditText 'resid'
    System.out.println("======ed"+resid);
     edittext= (EditText)mHostActivity.findViewById(resid);//   
Not Getting Resourceid 
}

---

而不是“R.id.editText\u条形码”

---

发送“editText\u条形码”对象editText，而不是“R.id.editText\u条形码”

---

发送“editText\u barcode”对象editText

而不是“R.id.editText\u barcode”发送“editText\u barcode”对象editText只接受我的答案….而不是“R.id.editText\u barcode”发送“editText\u barcode”对象editText只接受我的答案。。。。