ChooseBoardDialogFragment.java

package com.merono.g;

import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnFocusChangeListener;
import android.view.Window;
import android.view.WindowManager;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
import android.widget.TextView;

public class ChooseBoardDialogFragment extends DialogFragment {

    private EditText mEditText;

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        mEditText = new EditText(getActivity());
        mEditText.setId(1); // set id so that it maintains its state
        mEditText.setSingleLine();

        mEditText
                .setOnEditorActionListener(new TextView.OnEditorActionListener() {
                    public boolean onEditorAction(TextView v, int actionId,
                                                  KeyEvent event) {
                        if (actionId == EditorInfo.IME_ACTION_DONE) {
                            switchBoard(mEditText.getText().toString());
                            ChooseBoardDialogFragment.this.dismiss();
                        }
                        return false;
                    }
                });

        return new AlertDialog.Builder(getActivity())
                .setTitle(getString(R.string.choose_board))
                .setView(mEditText)
                .setPositiveButton(android.R.string.ok,
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface d, int button) {
                                switchBoard(mEditText.getText().toString());
                            }
                        }).create();
    }

    @Override
    public void onStart() {
        super.onStart();

        // make keyboard appear when dialog appears (only works in portrait)
        mEditText.setOnFocusChangeListener(new OnFocusChangeListener() {
            public void onFocusChange(View v, boolean hasFocus) {
                if (hasFocus) {
                    Window window = getDialog().getWindow();
                    window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
                }
            }
        });
    }

    private void switchBoard(String boardName) {
        ((BoardActivity) getActivity()).switchBoard(boardName);
    }
}