如何使 EditText 视图在 Presentation（Duel Screen）中获得焦点和 SoftKeyboard 输入？

Question

1. I am using Android Presentation to present different contents between the dual screens.
2. My Plan is to making the external display to present an EditText view, the Android device's main screen to present SoftKeyboard and get EditText view focus to make the input.

I try to use EditText.requestFocus() and InputMethodManager to open SoftKeyboard.

PS: Do not tell me to use onKeyDown listener and TextView.append()

public class MainPresentationFragment extends PresentationFragment {
private EditText textView3;

public MainPresentationFragment() {}

public static MainPresentationFragment newInstance(Context context, Display display){
    MainPresentationFragment mainPresentationFragment = new MainPresentationFragment();
    mainPresentationFragment.setDisplay(context, display);
    return mainPresentationFragment;
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    textView3 = rootView.findViewById(R.id.editText3);
    textView3.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
        textView3.requestFocus();
        InputMethodManager imm = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.toggleSoftInput(0, InputMethodManager.SHOW_FORCED);
    }
return rootView;
}

SoftKeyboard can present on the main screen, but EditText cannot get input.

Answer 1

SoftKeyboard can present on the main screen, but EditText cannot get input.

Correct. Presentation is output-only. There is no input.

My Plan is to making the external display to present an EditText view, the Android device's main screen to present SoftKeyboard and get EditText view focus to make the input.

You should be able to get something like that if:

• You put the real EditText on the device's main screen
• You mirror the EditText to the Presentation , such as via my MirroringFrameLayout and Mirror classes

Alternatively, you would need to use something like a TextWatcher on the main screen's EditText and duplicate the entered text onto the Presentation 's EditText . This would be akin to the "onKeyDown listener and TextView.append()" approach that you seem to dislike.