Java tutorial
/* * Copyright 2013 The Android Open Source Project * * 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.android.eventspace; import java.util.Locale; import android.annotation.SuppressLint; import android.app.Activity; import android.app.Fragment; import android.app.FragmentManager; import android.app.SearchManager; import android.content.Intent; import android.content.res.Configuration; import android.os.Bundle; import android.provider.Settings.System; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.text.Layout; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.FrameLayout; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; import com.android.eventspace.R; import com.google.android.gms.maps.CameraUpdateFactory; import com.google.android.gms.maps.GoogleMap; import com.google.android.gms.maps.MapFragment; import com.google.android.gms.maps.MapView; import com.google.android.gms.maps.SupportMapFragment; import com.google.android.gms.maps.model.BitmapDescriptorFactory; import com.google.android.gms.maps.model.LatLng; import com.google.android.gms.maps.model.Marker; import com.google.android.gms.maps.model.MarkerOptions; import com.pushbots.push.Pushbots; /** * This example illustrates a common usage of the DrawerLayout widget in the * Android support library. * <p/> * <p> * When a navigation (left) drawer is present, the host activity should detect * presses of the action bar's Up affordance as a signal to open and close the * navigation drawer. The ActionBarDrawerToggle facilitates this behavior. Items * within the drawer should fall into one of two categories: * </p> * <p/> * <ul> * <li><strong>View switches</strong>. A view switch follows the same basic * policies as list or tab navigation in that a view switch does not create * navigation history. This pattern should only be used at the root activity of * a task, leaving some form of Up navigation active for activities further down * the navigation hierarchy.</li> * <li><strong>Selective Up</strong>. The drawer allows the user to choose an * alternate parent for Up navigation. This allows a user to jump across an * app's navigation hierarchy at will. The application should treat this as it * treats Up navigation from a different task, replacing the current task stack * using TaskStackBuilder or similar. This is the only form of navigation drawer * that should be used outside of the root activity of a task.</li> * </ul> * <p/> * <p> * Right side drawers should be used for actions, not navigation. This follows * the pattern established by the Action Bar that navigation should be to the * left and actions to the right. An action should be an operation performed on * the current contents of the window, for example enabling or disabling a data * overlay on top of the current content. * </p> */ public class MainActivity extends Activity { private String SENDER_ID = "297016747626"; private String APPLICATION_ID = "531245c11d0ab1292a8b4607"; private GoogleMap map; private DrawerLayout mDrawerLayout; private ListView mDrawerList; private ActionBarDrawerToggle mDrawerToggle; private CharSequence mDrawerTitle; private CharSequence mTitle; private String[] optionTitles; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)) // .getMap(); mTitle = mDrawerTitle = getTitle(); optionTitles = getResources().getStringArray(R.array.options_array); mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); mDrawerList = (ListView) findViewById(R.id.left_drawer); // 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, optionTitles)); 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); } Pushbots.init(this, SENDER_ID, APPLICATION_ID); } @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; } // Handle action buttons switch (item.getItemId()) { case R.id.action_websearch: // create intent to perform web search for this planet Intent intent = new Intent(Intent.ACTION_WEB_SEARCH); intent.putExtra(SearchManager.QUERY, getActionBar().getTitle()); // catch event that there's no activity to handle intent if (intent.resolveActivity(getPackageManager()) != null) { startActivity(intent); } else { Toast.makeText(this, R.string.app_not_available, Toast.LENGTH_LONG).show(); } return true; default: 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) { Toast.makeText(getApplicationContext(), "number" + position, Toast.LENGTH_SHORT).show(); FrameLayout f; Fragment fragment; Bundle args; FragmentManager fragmentManager; switch (position) { case (3): f = (FrameLayout) findViewById(R.id.map_frame); f.setVisibility(View.GONE); final LatLng SITTERSON = new LatLng(35.910057, -79.053470); final LatLng OLDWELL = new LatLng(35.912045, -79.051181); GoogleMap googleMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap(); if (googleMap == null) { Toast.makeText(getApplicationContext(), "Sorry! unable to create maps", Toast.LENGTH_SHORT).show(); } else { Marker hamburg = googleMap .addMarker(new MarkerOptions().position(SITTERSON).title("My Second Home")); Marker kiel = googleMap .addMarker(new MarkerOptions().position(OLDWELL).title("Oldwell").snippet("The Old Well") .icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_launcher))); googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(SITTERSON, 2)); // Zoom in, animating the camera. googleMap.animateCamera(CameraUpdateFactory.zoomTo(21), 15000, null); } break; case 1: f = (FrameLayout) findViewById(R.id.map_frame); f.setVisibility(View.VISIBLE); // update the main content by replacing fragments fragment = new OptionFragment(position); args = new Bundle(); args.putInt(OptionFragment.ARG_OPTION_NUMBER, position); fragment.setArguments(args); fragmentManager = getFragmentManager(); fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit(); break; case 2: f = (FrameLayout) findViewById(R.id.map_frame); f.setVisibility(View.VISIBLE); // update the main content by replacing fragments fragment = new OptionFragment(position); args = new Bundle(); args.putInt(OptionFragment.ARG_OPTION_NUMBER, position); fragment.setArguments(args); fragmentManager = getFragmentManager(); fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit(); break; } // update selected item and title, then close the drawer mDrawerList.setItemChecked(position, true); setTitle(optionTitles[position]); mDrawerLayout.closeDrawer(mDrawerList); } @Override public void setTitle(CharSequence title) { mTitle = title; getActionBar().setTitle(mTitle); } /** * When using the ActionBarDrawerToggle, 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); } /** * Fragment that appears in the "content_frame", shows a planet */ public static class OptionFragment extends Fragment { public static final String ARG_OPTION_NUMBER = "option_number"; int l; public OptionFragment(int position) { if (position == 2) { l = R.layout.schedule_view; } else { l = R.layout.fragment_option; } // Empty constructor required for fragment subclasses } public OptionFragment() { } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(l, container, false); int i = getArguments().getInt(ARG_OPTION_NUMBER); String option = getResources().getStringArray(R.array.options_array)[i]; if (!option.equals("Schedule")) { ((TextView) rootView.findViewById(R.id.optionText)).setText(option); } else { rootView = rootView.findViewById(R.id.schedule_view); } getActivity().setTitle(option); return rootView; } } }