Java tutorial
/******************************************************************************* * Copyright 2014 if{y} team * * 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 pl.poznan.put.cs.ify.app; import com.crashlytics.android.Crashlytics; import java.util.ArrayList; import java.util.List; import pl.poznan.put.cs.ify.api.core.ActiveRecipeInfo; import pl.poznan.put.cs.ify.api.core.ActivityHandler; import pl.poznan.put.cs.ify.api.core.ActivityHandler.ActivityCommunication; import pl.poznan.put.cs.ify.api.core.ServiceHandler; import pl.poznan.put.cs.ify.api.core.YAbstractRecipeService; import pl.poznan.put.cs.ify.api.params.YParamList; import pl.poznan.put.cs.ify.app.fragments.InitializedReceipesFragment; import pl.poznan.put.cs.ify.app.fragments.LoginFragment; import pl.poznan.put.cs.ify.app.fragments.ManageGroupsFragment; import pl.poznan.put.cs.ify.app.fragments.MarketFragment; import pl.poznan.put.cs.ify.app.fragments.MyGroupsFragment; import pl.poznan.put.cs.ify.app.fragments.RecipesListFragment; import pl.poznan.put.cs.ify.app.fragments.SettingsFragment; import pl.poznan.put.cs.ify.appify.R; import pl.poznan.put.cs.ify.core.YRecipesService; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.content.res.Configuration; import android.os.Bundle; import android.os.IBinder; import android.os.Message; import android.os.Messenger; import android.os.RemoteException; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentManager; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; public class MainActivity extends FragmentActivity implements ActivityCommunication { private DrawerLayout mDrawerLayout; private ListView mDrawerList; private ActionBarDrawerToggle mDrawerToggle; private RecipesListFragment mRecipesListFragment; private CharSequence mDrawerTitle; private CharSequence mTitle; private String[] mTitles; private MarketFragment mMarketFrag; private InitializedReceipesFragment mActiveRecipesFrag; private LoginFragment mLoginFrag; private SettingsFragment mSettingsFrag; private ManageGroupsFragment mManageFrag; private MyGroupsFragment mMyGroupsFrag; @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.main, menu); return super.onCreateOptionsMenu(menu); } /* Called whenever we call invalidateOptionsMenu() */ @Override public boolean onPrepareOptionsMenu(Menu menu) { // If the nav drawer is open, hide action items related to the content // view // boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList); // menu.findItem(R.id.action_websearch).setVisible(!drawerOpen); return super.onPrepareOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { // The action bar home/up action should open or close the drawer. // ActionBarDrawerToggle will take care of this. if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } if (item.getItemId() == R.id.toggle_log) { Intent i = new Intent(YAbstractRecipeService.TOGGLE_LOG); sendBroadcast(i); return true; } return super.onOptionsItemSelected(item); } /* The click listner for ListView in the navigation drawer */ private class DrawerItemClickListener implements ListView.OnItemClickListener { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { selectItem(position); } } private void selectItem(int position) { // update the main content by replacing fragments Fragment f = null; switch (position) { case 0: f = getAvailableRecipesFrag(); break; case 1: f = getActiveRecipesFrag(); break; case 2: f = getMarketFrag(); break; case 3: f = getLoginFrag(); break; case 4: f = getMyGroupsFrag(); break; case 5: f = getManageGroupsFrag(); break; case 6: f = getSettingsFrag(); break; case 7: exit(); break; default: break; } if (f != null) { FragmentManager fragmentManager = getSupportFragmentManager(); fragmentManager.beginTransaction().replace(R.id.content_frame, f).commit(); // update selected item and title, then close the drawer mDrawerList.setItemChecked(position, true); setTitle(mTitles[position]); } mDrawerLayout.closeDrawer(mDrawerList); } private Fragment getManageGroupsFrag() { if (mManageFrag == null) { mManageFrag = new ManageGroupsFragment(); } return mManageFrag; } private Fragment getMyGroupsFrag() { if (mMyGroupsFrag == null) { mMyGroupsFrag = new MyGroupsFragment(); } return mMyGroupsFrag; } private SettingsFragment getSettingsFrag() { if (mSettingsFrag == null) { mSettingsFrag = new SettingsFragment(); } return mSettingsFrag; } private void exit() { stopService(new Intent(this, YRecipesService.class)); finish(); } private LoginFragment getLoginFrag() { if (mLoginFrag == null) { mLoginFrag = new LoginFragment(); } return mLoginFrag; } private InitializedReceipesFragment getActiveRecipesFrag() { if (mActiveRecipesFrag == null) { mActiveRecipesFrag = new InitializedReceipesFragment(); } return mActiveRecipesFrag; } private MarketFragment getMarketFrag() { if (mMarketFrag == null) { mMarketFrag = new MarketFragment(); } return mMarketFrag; } private RecipesListFragment getAvailableRecipesFrag() { if (mRecipesListFragment == null) { mRecipesListFragment = new RecipesListFragment(); } return mRecipesListFragment; } @Override public void setTitle(CharSequence title) { mTitle = title; getActionBar().setTitle(mTitle); } /** * When using the ActionBarToggle, you must call it during onPostCreate() * and onConfigurationChanged()... */ @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); // Sync the toggle state after onRestoreInstanceState has occurred. mDrawerToggle.syncState(); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); // Pass any configuration change to the drawer toggls mDrawerToggle.onConfigurationChanged(newConfig); } /** Messenger for communicating with the service. */ private Messenger mService = null; /** Flag indicating whether we have called bind on the service. */ private boolean mBound; private ActivityHandler mActivityHandler = new ActivityHandler(this); private Messenger mActivityMessenger = new Messenger(mActivityHandler); /** * Class for interacting with the main interface of the service. */ private ServiceConnection mConnection = new ServiceConnection() { public void onServiceConnected(ComponentName className, IBinder service) { // This is called when the connection with the service has been // established, giving us the object we can use to // interact with the service. We are communicating with the // service using a Messenger, so here we get a client-side // representation of that from the raw IBinder object. mService = new Messenger(service); mBound = true; Message msg = Message.obtain(null, ServiceHandler.REGISTER_CLIENT); try { msg.replyTo = mActivityMessenger; mService.send(msg); } catch (RemoteException e) { } requestRecipesList(); requestActiveRecipesList(); } public void onServiceDisconnected(ComponentName className) { // This is called when the connection with the service has been // unexpectedly disconnected -- that is, its process crashed. mService = null; mBound = false; } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //Crashlytics.start(this); setContentView(R.layout.activity_main); mTitle = mDrawerTitle = getTitle(); mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); mDrawerList = (ListView) findViewById(R.id.left_drawer); mTitles = getResources().getStringArray(R.array.drawer_menu); // set a custom shadow that overlays the main content when the drawer // opens mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); // set up the drawer's list view with items and click listener mDrawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item, mTitles)); mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); // enable ActionBar app icon to behave as action to toggle nav drawer getActionBar().setDisplayHomeAsUpEnabled(true); getActionBar().setHomeButtonEnabled(true); // ActionBarDrawerToggle ties together the the proper interactions // between the sliding drawer and the action bar app icon mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */ mDrawerLayout, /* DrawerLayout object */ R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */ R.string.drawer_open, /* "open drawer" description for accessibility */ R.string.drawer_close /* "close drawer" description for accessibility */ ) { public void onDrawerClosed(View view) { getActionBar().setTitle(mTitle); invalidateOptionsMenu(); // creates call to // onPrepareOptionsMenu() } public void onDrawerOpened(View drawerView) { getActionBar().setTitle(mDrawerTitle); invalidateOptionsMenu(); // creates call to // onPrepareOptionsMenu() } }; mDrawerLayout.setDrawerListener(mDrawerToggle); if (savedInstanceState == null) { selectItem(0); } } @Override protected void onStart() { super.onStart(); // Bind to the service bindService(new Intent(this, YRecipesService.class), mConnection, Context.BIND_AUTO_CREATE); } @Override protected void onStop() { super.onStop(); if (mBound) { unbindService(mConnection); mBound = false; } } public void activateRecipe(String recipe, YParamList requiredParams) { Message msg = Message.obtain(null, ServiceHandler.REGISTER_Recipe); Bundle bundle = new Bundle(); bundle.putString(YRecipesService.Recipe, recipe); bundle.putParcelable(YRecipesService.PARAMS, requiredParams); msg.setData(bundle); try { mService.send(msg); } catch (RemoteException e) { e.printStackTrace(); } } public void requestRecipesList() { if (mService != null) { Message msg = Message.obtain(null, ServiceHandler.REQUEST_AVAILABLE_RecipeS); try { mService.send(msg); } catch (RemoteException e) { e.printStackTrace(); } } } @Override public void onAvailableRecipesListReceived(Bundle data) { List<YRecipeInfo> listFromBundle = YRecipeInfo.listFromBundle(data, getClassLoader()); getRecipesListFragment().onRecipesListUpdated(listFromBundle); } private RecipesListFragment getRecipesListFragment() { if (mRecipesListFragment == null) { mRecipesListFragment = new RecipesListFragment(); } return mRecipesListFragment; } public void disableRecipe(int id) { Message msg = Message.obtain(null, ServiceHandler.REQUEST_DISABLE_RECIPE); msg.arg1 = id; try { mService.send(msg); } catch (RemoteException e) { e.printStackTrace(); } } @Override public void onActiveRecipesListReceiverd(Bundle data) { data.setClassLoader(getClassLoader()); ArrayList<ActiveRecipeInfo> activeRecipeInfos = data.getParcelableArrayList(YRecipesService.Recipe_INFOS); getActiveRecipesFrag().updateData(activeRecipeInfos); } public void requestActiveRecipesList() { if (mService != null) { Message msg = Message.obtain(null, ServiceHandler.REQUEST_ACTIVE_RECIPES); try { mService.send(msg); } catch (RemoteException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } // TODO: Quick fix public void login(View v) { mLoginFrag.login(v); } public void logout(View v) { mLoginFrag.logout(v); } public void onServerUrlChanged() { if (mService != null) { Message msg = Message.obtain(null, ServiceHandler.REQUEST_RESTART_GROUP_RECIPES); try { mService.send(msg); } catch (RemoteException e) { e.printStackTrace(); } } } public void login(String login, String passwd) { if (mService != null) { Message msg = Message.obtain(); Bundle b = new Bundle(); msg.what = ServiceHandler.REQUEST_LOGIN; b.putString(ServiceHandler.LOGIN, login); b.putString(ServiceHandler.PASSWD, passwd); msg.setData(b); try { mService.send(msg); } catch (RemoteException e) { e.printStackTrace(); } } } public void logout() { Message msg = Message.obtain(); Bundle b = new Bundle(); msg.what = ServiceHandler.REQUEST_LOGOUT; try { mService.send(msg); } catch (RemoteException e) { e.printStackTrace(); } } @Override public void onLoginFailure(String string) { getLoginFrag().onLoginFailure(string); } @Override public void onLoginSuccessful() { getLoginFrag().onLoginSuccessful(); } @Override public void onLogout() { getLoginFrag().onLogout(); } public void removeAvailableRecipe(String name) { if (mService != null) { Message msg = Message.obtain(); Bundle b = new Bundle(); msg.what = ServiceHandler.REQUEST_REMOVE_AVAILABLE_RECIPE; b.putString(YRecipesService.Recipe, name); msg.setData(b); try { mService.send(msg); } catch (RemoteException e) { e.printStackTrace(); } } } }