com.lastsoft.plog.wizard.ui.SingleChoiceFragment.java Source code

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Here is the source code for com.lastsoft.plog.wizard.ui.SingleChoiceFragment.java

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    /*
     * Copyright 2013 Google Inc.
     *
     * Licensed under the Apache License, Version 2.0 (the "License");
     * you may not use this file except in compliance with the License.
     * You may obtain a copy of the License at
     *
     *     http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License.
     */

package com.lastsoft.plog.wizard.ui;;

    import android.app.Activity;
    import android.os.Bundle;
    import android.os.Handler;
    import android.support.v4.app.ListFragment;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.ArrayAdapter;
    import android.widget.ListView;
    import android.widget.TextView;

    import com.lastsoft.plog.R;
    import com.lastsoft.plog.wizard.model.Page;
    import com.lastsoft.plog.wizard.model.SingleFixedChoicePage;

    import java.util.ArrayList;
    import java.util.List;

    public class SingleChoiceFragment extends ListFragment {
        private static final String ARG_KEY = "key";

        private PageFragmentCallbacks mCallbacks;
        private List<String> mChoices;
        private String mKey;
        private Page mPage;

        public static SingleChoiceFragment create(String key) {
            Bundle args = new Bundle();
            args.putString(ARG_KEY, key);

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

        public SingleChoiceFragment() {
        }

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

            Bundle args = getArguments();
            mKey = args.getString(ARG_KEY);
            mPage = mCallbacks.onGetPage(mKey);

            SingleFixedChoicePage fixedChoicePage = (SingleFixedChoicePage) mPage;
            mChoices = new ArrayList<String>();
            for (int i = 0; i < fixedChoicePage.getOptionCount(); i++) {
                mChoices.add(fixedChoicePage.getOptionAt(i));
            }
        }

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

            final ListView listView = (ListView) rootView.findViewById(android.R.id.list);
            setListAdapter(new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_single_choice,
                    android.R.id.text1, mChoices));
            listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);

            // Pre-select currently selected item.
            new Handler().post(new Runnable() {
                @Override
                public void run() {
                    String selection = mPage.getData().getString(Page.SIMPLE_DATA_KEY);
                    for (int i = 0; i < mChoices.size(); i++) {
                        if (mChoices.get(i).equals(selection)) {
                            listView.setItemChecked(i, true);
                            break;
                        }
                    }
                }
            });

            return rootView;
        }

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

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

            mCallbacks = (PageFragmentCallbacks) getParentFragment();
        }

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

        @Override
        public void onListItemClick(ListView l, View v, int position, long id) {
            mPage.getData().putString(Page.SIMPLE_DATA_KEY, getListAdapter().getItem(position).toString());
            mPage.notifyDataChanged();
        }
    }