SingleEditFragment.java

package com.example.android.wizardpager.wizard.ui;

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.EditorInfo;
import android.widget.TextView;

import com.arconus.dicecommander.R;
import com.example.android.wizardpager.wizard.model.Page;
import com.example.android.wizardpager.wizard.model.SingleEditPage;


public class SingleEditFragment extends Fragment {
    private static final String ARG_KEY = "key";
    private static final String INPUT_TYPE_KEY = "inputType";

    private PageFragmentCallbacks mCallbacks;
    private String mKey;
    private int mInputType;
    private SingleEditPage mPage;

    public static SingleEditFragment create(String key, int inputType) {
        Bundle args = new Bundle();
        args.putString(ARG_KEY, key);
        args.putInt(INPUT_TYPE_KEY, inputType);

        SingleEditFragment fragment = new SingleEditFragment();
        fragment.setArguments(args);
        return fragment;
    }

    public SingleEditFragment() {
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        Bundle args = getArguments();
        mKey = args.getString(ARG_KEY);
        mInputType = args.getInt(INPUT_TYPE_KEY, EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS);
        mPage = (SingleEditPage) mCallbacks.onGetPage(mKey);

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_page_single_edit, container, false);
        ((TextView) rootView.findViewById(android.R.id.title)).setText(mPage.getTitle());

        TextView mItemView = ((TextView) rootView.findViewById(R.id.your_item));
        mItemView.setText(mPage.getData().getString(Page.SIMPLE_DATA_KEY));
        mItemView.setInputType(mInputType);
        return rootView;
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);

        if (!(activity instanceof PageFragmentCallbacks)) {
            throw new ClassCastException("Activity must implement PageFragmentCallbacks");
        }

        mCallbacks = (PageFragmentCallbacks) activity;
    }

    @Override
    public void onDetach() {
        super.onDetach();
        mCallbacks = null;
    }


    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        TextView mItemView = ((TextView) view.findViewById(R.id.your_item));
        mItemView.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence charSequence, int i, int i1,
                                          int i2) {
            }

            @Override
            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
            }

            @Override
            public void afterTextChanged(Editable editable) {
                mPage.getData().putString(Page.SIMPLE_DATA_KEY,
                        (editable != null) ? editable.toString() : null);
                mPage.notifyDataChanged();
            }
        });
    }

}