Android Open Source - myglob Main Activity

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License

The source code is released under:
GNU General Public License
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Java Source Code

/*
 * MyGlob Android Application//w w  w. j  a  va  2s.c o m
 * 
 * Copyright (C) 2013 Petar Petrov
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package net.vexelon.myglob;

import com.actionbarsherlock.app.ActionBar.Tab;
import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuItem;
import com.actionbarsherlock.view.SubMenu;

import net.vexelon.myglob.configuration.Defs;
import net.vexelon.myglob.configuration.GlobalSettings;
import net.vexelon.myglob.fragments.AboutFragment;
import net.vexelon.myglob.fragments.HomeFragment;
import net.vexelon.myglob.fragments.InvoiceFragment;
import net.vexelon.myglob.users.UsersManager;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.util.Log;
import android.view.View;

public class MainActivity extends SherlockFragmentActivity {
  
  private SherlockFragmentActivity _activity;
  private ActionBar _actionBar;
  
  // Pager handling
  private ViewPager _pager;
  private PagerAdapter _adapter;
    private int _tabsCount;
    private int _currentPage = 0;
    
    // Fragments
    private HomeFragment _homeFragment;
    private InvoiceFragment _invoiceFragment;
    private AboutFragment _aboutFragment;
    
    // Others
    private Operations[] _operationsArray;

    @Override
    public void onCreate(Bundle savedInstanceState) {
      this.setTheme(Defs.THEME);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.view_pager);
        
        this._activity = this;

        /**
         * load preferences
         */
        
        final SharedPreferences prefsUsers = this.getSharedPreferences(Defs.PREFS_USER_PREFS, 0);
        UsersManager.getInstance().reloadUsers(prefsUsers);

        SharedPreferences prefsGeneral = this.getSharedPreferences(Defs.PREFS_ALL_PREFS, 0);
        GlobalSettings.getInstance().init(prefsGeneral);

        /**
         * initialize UI
         */
//        this.setTitle(getResString(R.string.app_name) + " - " + getResString(R.string.about_tagline));
        this._actionBar = getSupportActionBar();
        this._actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
        this._actionBar.setTitle(getResString(R.string.app_name) + " - " + getResString(R.string.about_tagline));
        this._actionBar.setDisplayShowTitleEnabled(false);
        this._actionBar.setDisplayShowHomeEnabled(false);
        this._actionBar.setDisplayHomeAsUpEnabled(true);            
        
        this._tabsCount = 3;
        
        this._adapter = new PageAdapter(getSupportFragmentManager());
        this._pager = (ViewPager) findViewById(R.id.pager);
        this._pager.setAdapter(this._adapter);
        
        this._pager.setOnPageChangeListener(new OnPageChangeListener() {
      
      @Override
      public void onPageSelected(int arg0) {
        _currentPage = arg0;
        _activity.invalidateOptionsMenu();
//        if (Build.VERSION.SDK_INT < 11) {
//          MainActivity mainActivity = (MainActivity) _activity;
//          mainActivity.invalidateOptionsMenu();
//        } else {
//          _activity.invalidateOptionsMenu();
//        }  
        
        _actionBar.setSelectedNavigationItem(arg0);
      }
      
      @Override
      public void onPageScrolled(int arg0, float arg1, int arg2) {}
      
      @Override
      public void onPageScrollStateChanged(int arg0) {}
    });
        
        // Create Fragments
        
        Tab tab = _actionBar.newTab().setText(R.string.text_tab_home)
            .setTabListener(new MyTabListener(_pager, HomeFragment.TAB_ID));
        _actionBar.addTab(tab, true);
        
        tab = _actionBar.newTab().setText(R.string.text_tab_invoice)
            .setTabListener(new MyTabListener(_pager, InvoiceFragment.TAB_ID));
        _actionBar.addTab(tab);
        
        tab = _actionBar.newTab().setText(R.string.text_tab_about)
            .setTabListener(new MyTabListener(_pager, AboutFragment.TAB_ID));
        _actionBar.addTab(tab);
        
        
//        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
//            BitmapDrawable bg = (BitmapDrawable)getResources().getDrawable(R.drawable.bg_striped);
//            bg.setTileModeXY(TileMode.REPEAT, TileMode.REPEAT);
//            getSupportActionBar().setBackgroundDrawable(bg);
//
//            BitmapDrawable bgSplit = (BitmapDrawable)getResources().getDrawable(R.drawable.bg_striped_split_img);
//            bgSplit.setTileModeXY(TileMode.REPEAT, TileMode.REPEAT);
//            getSupportActionBar().setSplitBackgroundDrawable(bgSplit);
//        }        

        // XXX Operations based on account ?
        
        _operationsArray = new Operations[] {
      Operations.CHECK_CURRENT_BALANCE
    };          

    }
    
  @Override
  public boolean onPrepareOptionsMenu(Menu menu) {
    if (Defs.LOG_ENABLED)
      Log.i(Defs.LOG_TAG, "onPrepareOptionsMenu() called. Current item = " + _pager.getCurrentItem());
    
    menu.clear();
    
    if (_currentPage == HomeFragment.TAB_ID) {
      /* 
       * Home Menu
       */
//      menu.add(Menu.NONE, Defs.MENU_REFRESH, 0, R.string.text_refresh)
//      .setIcon(R.drawable.ic_refresh)
//      .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
      
      // Account Operations
          SubMenu submenuOperations = menu.addSubMenu(Menu.NONE, Defs.MENU_OPTIONS_BASE, 0, R.string.operations_title);
          
          for (Operations operation : _operationsArray) {
            submenuOperations.add(5, operation.getMenuId(), 0, operation.getResourceId());  
      }
  
          submenuOperations.getItem()
          .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
      
          // App Menu
          SubMenu submenuActions = menu.addSubMenu(R.string.text_menu);
          
          submenuActions.add(Menu.NONE, Defs.MENU_ADD_ACCOUNT, 0, R.string.menu_add_account)
      .setIcon(R.drawable.ic_menu_invite)
      .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
          
          submenuActions.add(Menu.NONE, Defs.MENU_MANAGE_ACCOUNTS, 0, R.string.menu_manage_accounts)
      .setIcon(R.drawable.ic_menu_manage)
      .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
          
          submenuActions.getItem()
          .setIcon(R.drawable.ic_menu_moreoverflow_normal_holo_dark)
          .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
        
    } else if (_currentPage == InvoiceFragment.TAB_ID) {
      /* 
       * Invoice Menu
       */
          SubMenu submenuOperations = menu.addSubMenu(Menu.NONE, Defs.MENU_OPTIONS_BASE, 0, R.string.operations_title);
          submenuOperations.add(6, Defs.MENU_UPDATE_INVOICE, 0, getResString(R.string.text_menu_invoice));  
          
          submenuOperations.getItem()
          .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);          
    }
    
    return true; //super.onPrepareOptionsMenu(menu);
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    if (_currentPage == HomeFragment.TAB_ID) {
      if (_homeFragment == null) {
        Log.w(Defs.LOG_TAG, "_homeFragment is <null>!");
        return false;
      }
      
      switch(item.getItemId()) {
//      case Defs.MENU_REFRESH:
//        _homeFragment.updateStatus(Operations.CHECK_SMS_PACKAGE);
//        break;
      case Defs.MENU_ADD_ACCOUNT:
        _homeFragment.showAddAccount();
        break;
      case Defs.MENU_MANAGE_ACCOUNTS:
        _homeFragment.showEditAccount();
        break;
      }
      // Refresh called
      for (Operations operation : _operationsArray) {
        if (item.getItemId() == operation.getMenuId()) {
          _homeFragment.updateStatus(operation);
        }
      }
    } else if (_currentPage == InvoiceFragment.TAB_ID) {
      switch (item.getItemId()) {
      case Defs.MENU_UPDATE_INVOICE:
        _invoiceFragment.update();
        break;
      }
    }

    return true;
  }
  
  protected String getResString(int id) {
    return this.getResources().getString(id);
  }
  
  /******************************************************************************************************************
   * 
   * Set selected Tab
   *
   */
  public class MyTabListener implements ActionBar.TabListener {
    
    private int _tabId;
    private ViewPager _pager;
    
    public MyTabListener(ViewPager pager, int tabId) {
      this._pager = pager;
      this._tabId = tabId;
    }
    
    @Override
    public void onTabReselected(Tab tab, FragmentTransaction ft) {}
    
    @Override
    public void onTabSelected(Tab tab, FragmentTransaction ft) {
      if (Defs.LOG_ENABLED) 
        Log.d(Defs.LOG_TAG, "Selected tab id: " + this._tabId);
      
      _pager.setCurrentItem(_tabId);
      
//      // force views update if switching to home fragment after updating invoice
//      if (_tabId == HomeFragment.TAB_ID && _homeFragment != null 
//          && _invoiceFragment != null && _invoiceFragment.isUpdated()) {
//        _homeFragment.onStart();
//        _invoiceFragment.setUpdated(false);
//      }
    }
    
    @Override
    public void onTabUnselected(Tab tab, FragmentTransaction ft) {}
  }
  
  /******************************************************************************************************************
   * 
   * Responsible for managing fragment selections
   *
   */
  public class PageAdapter extends FragmentStatePagerAdapter {
    
    public PageAdapter(FragmentManager manager) {
      super(manager);
    }
    
    @Override
    public int getCount() {
      return _tabsCount;
    }
    
    @Override
    public Fragment getItem(int position) {
      if (Defs.LOG_ENABLED)
        Log.d(Defs.LOG_TAG, "getItem " + position);
      
      switch (position) {
      case AboutFragment.TAB_ID:
        _aboutFragment = AboutFragment.newInstance();
        return _aboutFragment;
      case InvoiceFragment.TAB_ID:
        _invoiceFragment = InvoiceFragment.newInstance();
        if (_homeFragment != null) {
          _homeFragment.addListener(_invoiceFragment);
          _invoiceFragment.addListener(_homeFragment);
        }        
        return _invoiceFragment;
      }
        
      // default (Home)
      _homeFragment = HomeFragment.newInstance();
      return _homeFragment;
    }
    
    @Override
    public void destroyItem(View container, int position, Object object) {
      if (Defs.LOG_ENABLED)
        Log.d(Defs.LOG_TAG, "destroyItem " + container + ", " + position + ", " + object);
    }
    
  }
}
Java Source Code List
