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.theoreticsinc.brucat.activities; import android.annotation.TargetApi; import android.app.ActionBar; import android.app.Activity; import android.app.AlertDialog; import android.app.Fragment; import android.app.FragmentManager; import android.content.DialogInterface; import android.content.res.Configuration; import android.content.res.TypedArray; import android.os.Bundle; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.view.Gravity; import android.view.LayoutInflater; 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; import com.theoreticsinc.brucat.R; import com.theoreticsinc.brucat.fragments.AlertsListFragment; import com.theoreticsinc.brucat.fragments.DashboardFragment; import com.theoreticsinc.brucat.fragments.WebsiteFragment; import com.theoreticsinc.brucat.models.NavItem; import com.theoreticsinc.brucat.utils.DrawerListAdapter; import java.util.ArrayList; /** * 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. * NewsletterItems 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 * listView 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> */ //@TargetApi(14) public class DrawerActivity extends Activity { private DrawerLayout mDrawerLayout; private ListView mDrawerList; private ActionBarDrawerToggle mDrawerToggle; private CharSequence mDrawerTitle; private CharSequence mTitle; private String[] settingsName; private String[] subSettingsName; private TypedArray settings_icon; ArrayList<NavItem> mNavItems = new ArrayList<NavItem>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.drawer_main); this.setTitle("BruCat"); mTitle = mDrawerTitle = getTitle(); settingsName = getResources().getStringArray(R.array.settings_array); subSettingsName = getResources().getStringArray(R.array.subsettings_array); settings_icon = getResources().obtainTypedArray(R.array.settings_icons); mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); mDrawerList = (ListView) findViewById(R.id.left_drawer); for (int i = 0; i < settingsName.length; i++) { mNavItems.add(new NavItem(settingsName[i], subSettingsName[i], settings_icon.getResourceId(i, 0))); } ; // set a custom shadow that overlays the items_list content when the drawer opens mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); // set up the drawer's listView view with items and click listener //mDrawerList.setAdapter(new ArrayAdapter<String>(this,R.layout.drawer_list_item, settingsName)); DrawerListAdapter adapter = new DrawerListAdapter(this, mNavItems); mDrawerList.setAdapter(adapter); LayoutInflater inflator = this.getLayoutInflater(); View headerView = inflator.inflate(R.layout.imagedrawer, null); //View headerView = LayoutInflater.from(this).inflate(R.layout.imagedrawer, mDrawerLayout); //((TextView) headerView.findViewById(R.id.textView1)).setText("Angelo"); //mDrawerList.addHeaderView(headerView); mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); /* // enable ActionBar app icon to behave as action to toggle nav drawer ActionBar mActionBar = getActionBar(); mActionBar.setDisplayShowHomeEnabled(true); mActionBar.setDisplayShowTitleEnabled(true); LayoutInflater mInflater = LayoutInflater.from(this); //getActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_SHOW_HOME); //getActionBar().setDisplayUseLogoEnabled(false); //getActionBar().setDisplayShowCustomEnabled(true); //getActionBar().setCustomView(R.layout.custom_actionbar); //getActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_SHOW_HOME | ActionBar.DISPLAY_HOME_AS_UP); View mCustomView = mInflater.inflate(R.layout.custom_actionbar, null); mActionBar.setCustomView(mCustomView); mActionBar.setDisplayShowCustomEnabled(true); */ getActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_SHOW_HOME); getActionBar().setCustomView(R.layout.custom_actionbar); getActionBar().setDisplayHomeAsUpEnabled(true); getActionBar().setHomeButtonEnabled(true); mDrawerLayout.openDrawer(Gravity.LEFT); // 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.blank, /* 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 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_refresh).setVisible(!drawerOpen); //menu.findItem(R.id.action_refresh).setVisible(false); 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_refresh: /*/ 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, "DrawerActivity", Toast.LENGTH_LONG).show(); return true; default: return super.onOptionsItemSelected(item); } } /* The click listener for ListView in the navigation drawer */ private class DrawerItemClickListener implements ListView.OnItemClickListener { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { System.out.println("Position:" + position); if (position > 0) { //position--; } selectItem(position); } } private void selectItem(int position) { FragmentManager fragmentManager = getFragmentManager(); if (position == 1) { /* Fragment settingsFrag = new SettingsFragment(); Bundle args = new Bundle(); args.putInt("SettingsItem", position); settingsFrag.setArguments(args); fragmentManager.beginTransaction().replace(R.id.content_frame, settingsFrag).commit(); */ } else if (position == 3) { Fragment newpost = new WebsiteFragment(); Bundle args = new Bundle(); args.putInt("SettingsItem", position); newpost.setArguments(args); fragmentManager.beginTransaction().replace(R.id.content_frame, newpost).addToBackStack(null).commit(); } else { Fragment dashFrag = new DashboardFragment(); Bundle args = new Bundle(); args.putInt("SettingsItem", position); dashFrag.setArguments(args); fragmentManager.beginTransaction().replace(R.id.content_frame, dashFrag) //.addToBackStack(null) .commit(); } // update selected item and title, then close the drawer setTitle(settingsName[position]); //position = position + 1; mDrawerList.setItemChecked(position, true); 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); } /* @Override public void onBackPressed() { new AlertDialog.Builder(this) .setTitle("Really Exit?") .setMessage("Are you sure you want to exit?") .setNegativeButton(android.R.string.no, null) .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() { public void onClick(DialogInterface arg0, int arg1) { //DashboardActivity.super.onBackPressed(); finish(); } }).create().show(); }*/ }