Java tutorial
/* * Copyright 2014 Regional Adult Education Program of Lee, Scott, Wise, and Norton Public Schools * * 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 edu.mecc.race2ged.fragments; import android.app.Activity; import android.net.Uri; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ListView; import com.nhaarman.listviewanimations.swinginadapters.prepared.SwingBottomInAnimationAdapter; import java.util.ArrayList; import edu.mecc.race2ged.JSON.*; import edu.mecc.race2ged.R; import edu.mecc.race2ged.adapters.CardAdapter; import edu.mecc.race2ged.cards.ClassCard; /** * <code>ClassPageFragment</code> shows a scrollable list of all the class cards in the county. * * @author Bryan Smith * @date 5/26/2014. */ public class ClassCardListFragment extends CardListFragment { private County mCounty = null; private static final String ARG_COUNTY = "countyParam"; private CardAdapter classListAdapter; private SwingBottomInAnimationAdapter animationAdapter; private ListView mListView; /** * Use this factory method to create a new instance of * this fragment using the provided parameters. This fragment * shows a scrollable list of all the class cards in the county. * * @param county County data object for this fragment. * * @return A new instance of fragment ClassesFragment. */ public static ClassCardListFragment newInstance(County county) { ClassCardListFragment fragment = new ClassCardListFragment(); Bundle args = new Bundle(); args.putSerializable(ARG_COUNTY, county); fragment.setArguments(args); return fragment; } /** * Construct a <code>ClassPageFragment</code> */ public ClassCardListFragment() { } /** * {@inheritDoc} */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (getArguments() != null) { mCounty = (County) getArguments().getSerializable(ARG_COUNTY); } classListAdapter = new CardAdapter(getActivity().getBaseContext(), populateCards()); animationAdapter = new SwingBottomInAnimationAdapter(classListAdapter); } /** * {@inheritDoc} */ @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { if (savedInstanceState != null) { County tmp = (County) savedInstanceState.getSerializable(ARG_COUNTY); if (tmp != null) mCounty = tmp; } // Inflate the layout for this fragment View view = inflater.inflate(R.layout.fragment_card_list, container, false); mListView = (ListView) view.findViewById(R.id.list); //Setup list animations animationAdapter.setAbsListView(mListView); mListView.setAdapter(animationAdapter); return view; } /** * Creates the class cards from the stored county data. * @return ArrayList of the class cards. */ public ArrayList<View> populateCards() { ArrayList<View> cards = new ArrayList<View>(); for (int i = 0; i < mCounty.getClasses().size(); i++) { ClassCard classCard = new ClassCard(getActivity().getBaseContext(), mCounty.getClasses().get(i)); cards.add(classCard); } return cards; } /** * Called to ask the fragment to save its current dynamic state, so it * can later be reconstructed in a new instance of its process is * restarted. If a new instance of the fragment later needs to be * created, the data you place in the Bundle here will be available * in the Bundle given to {@link #onCreate(android.os.Bundle)}, * {@link #onCreateView(android.view.LayoutInflater, android.view.ViewGroup, android.os.Bundle)}, and * {@link #onActivityCreated(android.os.Bundle)}. * <p/> * <p>This corresponds to {@link android.app.Activity#onSaveInstanceState(android.os.Bundle) * Activity.onSaveInstanceState(Bundle)} and most of the discussion there * applies here as well. Note however: <em>this method may be called * at any time before {@link #onDestroy()}</em>. There are many situations * where a fragment may be mostly torn down (such as when placed on the * back stack with no UI showing), but its state will not be saved until * its owning activity actually needs to save its state. * * @param outState Bundle in which to place your saved state. */ @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putSerializable(ARG_COUNTY, mCounty); } /** * Get the county data object of this fragment. * @return County data object */ public County getCounty() { return mCounty; } /** * Set the county for this fragment. * @param county County data object to use. */ public void setCounty(County county) { this.mCounty = county; } }