Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2016. Nikhil Nayak <nikhilnayak98@gmail.com> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package com.nikhilnayak.games.octoshootar.ui.fragments; import android.app.Activity; import android.content.Context; 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.GridView; import android.widget.TextView; import java.util.ArrayList; import com.nikhilnayak.games.octoshootar.R; import com.nikhilnayak.games.octoshootar.model.PlayerProfile; import com.nikhilnayak.games.octoshootar.model.inventory.InventoryItemEntry; import com.nikhilnayak.games.octoshootar.model.inventory.InventoryItemEntryFactory; import com.nikhilnayak.games.octoshootar.model.inventory.InventoryItemInformation; import com.nikhilnayak.games.octoshootar.ui.InventoryCraftListener; import com.nikhilnayak.games.octoshootar.ui.adapter.InventoryItemEntryAdapter; import com.nikhilnayak.games.octoshootar.ui.customviews.InventoryItemEntryView; public class InventoryFragment extends Fragment implements InventoryItemEntryView.Listener, InventoryCraftListener { public static final String TAG = "InventoryFragment_TAG"; private TextView mTextViewCoins; private GridView mInventoryGridView; private PlayerProfile mPlayerProfile; private Listener mListener; private InventoryCraftListener mCraftListener; private InventoryItemEntryAdapter mInventoryEntryAdapter; /** * Default Constructor. * <p/> * lint [ValidFragment] * http://developer.android.com/reference/android/app/Fragment.html#Fragment() * Every fragment must have an empty constructor, so it can be instantiated when restoring its activity's state. */ public InventoryFragment() { } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View v = inflater.inflate(R.layout.fragment_inventory, container, false); mInventoryEntryAdapter = new InventoryItemEntryAdapter(getActivity(), new ArrayList<InventoryItemEntry>(), this, this, mPlayerProfile); mInventoryGridView = ((GridView) v.findViewById(R.id.inventory_grid_view)); mInventoryGridView.setAdapter(mInventoryEntryAdapter); mTextViewCoins = (TextView) v.findViewById(R.id.inventory_old_coins); loadInformation(); return v; } @Override public void onAttach(Activity activity) { super.onAttach(activity); if (activity instanceof InventoryFragment.Listener) { mListener = (InventoryFragment.Listener) activity; mPlayerProfile = new PlayerProfile(getActivity() .getSharedPreferences(PlayerProfile.SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE)); } else { throw new ClassCastException(activity.toString() + " must implement InventoryFragment.Listener"); } if (activity instanceof InventoryCraftListener) { mCraftListener = (InventoryCraftListener) activity; } else { throw new ClassCastException(activity.toString() + " must implement InventoryCraftListener"); } } @Override public void onDetach() { super.onDetach(); mListener = null; mCraftListener = null; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); } @Override public void onInventoryItemEntryDetailRequest(InventoryItemEntry inventoryItemEntry) { mListener.onInventoryItemEntryDetailRequest(inventoryItemEntry); } public void loadInformation() { final long numberOfCoins = mPlayerProfile.getOldCoinQuantity(); mTextViewCoins .setText(getResources().getQuantityText(R.plurals.inventory_item_coin_title, (int) numberOfCoins) + " : " + String.valueOf(numberOfCoins)); mInventoryEntryAdapter.clear(); mInventoryEntryAdapter.add(InventoryItemEntryFactory.create( InventoryItemInformation.TYPE_BROKEN_HELMET_HORN, mPlayerProfile.getBrokenHelmetHornQuantity())); mInventoryEntryAdapter.add(InventoryItemEntryFactory.create(InventoryItemInformation.TYPE_BABY_DROOL, mPlayerProfile.getBabyDroolQuantity())); mInventoryEntryAdapter.add(InventoryItemEntryFactory.create(InventoryItemInformation.TYPE_GHOST_TEAR, mPlayerProfile.getGhostTearQuantity())); mInventoryEntryAdapter.add(InventoryItemEntryFactory.create(InventoryItemInformation.TYPE_SPEED_POTION, mPlayerProfile.getSpeedPotionQuantity())); mInventoryEntryAdapter.add(InventoryItemEntryFactory.create(InventoryItemInformation.TYPE_KING_CROWN, mPlayerProfile.getKingCrownQuantity())); mInventoryEntryAdapter.add(InventoryItemEntryFactory.create(InventoryItemInformation.TYPE_STEEL_BULLET, mPlayerProfile.getSteelBulletQuantity())); mInventoryEntryAdapter.add(InventoryItemEntryFactory.create(InventoryItemInformation.TYPE_GOLD_BULLET, mPlayerProfile.getGoldBulletQuantity())); mInventoryEntryAdapter.add(InventoryItemEntryFactory.create(InventoryItemInformation.TYPE_ONE_SHOT_BULLET, mPlayerProfile.getOneShotBulletQuantity())); mInventoryEntryAdapter.notifyDataSetChanged(); } @Override public void onCraftRequested(InventoryItemEntry inventoryItemEntry) { mCraftListener.onCraftRequested(inventoryItemEntry); } public interface Listener { public void onInventoryItemEntryDetailRequest(InventoryItemEntry inventoryItemEntry); } }