Android onKey() 永远不会被调用

Question

我想监听我的 EditText 的 的关键事件，每当按下 next 时，我想将 EditText 的文本保存到我的数据中目的。我实现了 OnKeyListener 及其 onKey() 方法，该方法从未被调用过，也不知道为什么……这是我的代码:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle
    savedInstanceState) {
    v = inflater.inflate(R.layout.frag_userprofile_myinfo, container, false);
    context = getActivity().getApplicationContext();
    global = (eKeshGlobal) context;

    pbWait = (ProgressBar) v.findViewById(R.id.pbWait);

    bnDone = (Button) v.findViewById(R.id.bnDone);
    rlBack = (RelativeLayout) v.findViewById(R.id.rlBack);

    etFirstName = (EditText) v.findViewById(R.id.etFirstName);
    etLastName = (EditText) v.findViewById(R.id.etLastName);
    etAdress = (EditText) v.findViewById(R.id.etAdress);
    etMobile = (EditText) v.findViewById(R.id.etMobile);
    etDob = (EditText) v.findViewById(R.id.etDob);
    etOib = (EditText) v.findViewById(R.id.etOib);

    etFirstName.setOnKeyListener(this);
    etLastName.setOnKeyListener(this);
    etAdress.setOnKeyListener(this);
    etMobile.setOnKeyListener(this);
    etDob.setOnKeyListener(this);
    etOib.setOnKeyListener(this);


    return v;

}

@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
    if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == 
KeyEvent.KEYCODE_ENTER)) {

        switch(v.getId()) {

        case R.id.etFirstName:
            user.setFirstName(etFirstName.getText().toString());
            return true;

        case R.id.etLastName:
            user.setLastName(etLastName.getText().toString());
            return true;

        case R.id.etAdress:
            user.setAddress(etAdress.getText().toString());
            return true;

        case R.id.etMobile:
            user.setMobile(etMobile.getText().toString());
            return true;

        case R.id.etDob:
            user.setDateOfBirth(Utils.formatDate(context, 
etDob.getText().toString()));
            return true;

        case R.id.etOib:
            user.setOib(etOib.getText().toString());
            return true;

        default:
            return false;
        }   
    }

    return false;
}

当然我已经实现了监听器:

public class UserProfileMyInfo extends Fragment implements View.OnKeyListener

下面是 EditText xml 的示例:

<EditText
      android:id="@+id/etLastName"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:layout_gravity="left"
      android:ems="10"
      android:hint="@string/my_profile_lastname"
      android:imeOptions="actionNext"
      android:inputType="text"
      android:singleLine="true" />

我真的没有办法完成这项工作，我也尝试过 onKeyDown() 但也没有用。提前致谢!

Answer 1

来自文档，View.OnKeyListener用于硬件键。这就是它不起作用的原因。

Interface definition for a callback to be invoked when a hardware key event is dispatched to this view. The callback will be invoked before the key event is given to the view. This is only useful for hardware keyboards; a software input method has no obligation to trigger this listener.