Android Open Source - PlayTunes Navigation Fragment

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License

The source code is released under:
Copyright (c) 2014, Impeccable Labs, LLC. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions ar...
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Java Source Code

package com.ideabag.playtunes.fragment;
/*from w  ww. java2 s. c  o m*/
import com.ideabag.playtunes.PlaylistManager;
import com.ideabag.playtunes.R;
import com.ideabag.playtunes.activity.MainActivity;
import com.ideabag.playtunes.activity.SettingsActivity;
import com.ideabag.playtunes.fragment.search.SearchFragment;

import android.app.Activity;
import android.content.Intent;
import android.database.ContentObserver;
import android.os.Bundle;
import android.os.Handler;
import android.provider.MediaStore;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.view.GravityCompat;
import android.support.v7.app.ActionBar;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;


public class NavigationFragment extends Fragment implements View.OnClickListener {
  
  public static final String TAG = "NavigationFragment";
  
  protected MainActivity mActivity;
  protected FragmentManager mFragmentManager;
  protected ActionBar mActionBar;
  
  protected PlaylistManager mPlaylistManager;
  
  protected MusicBrowserFragment MusicBrowserFragment;
  
  // Have we warned the user that pressing Back will close the app?
  protected boolean mCloseWarningOn = false;
  
  public CharSequence mActionbarTitle, mActionbarSubtitle;
  
  @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    
    return inflater.inflate( R.layout.fragment_navigation, container, false );
    
  }
  
  @Override public void onAttach( Activity activity ) {
    
    super.onAttach( activity );
    
    mActivity = ( MainActivity ) activity;
    
    mPlaylistManager = new PlaylistManager( getActivity() );
    
    mActionBar = mActivity.getSupportActionBar();
    
        //mActionBar.setLogo( R.drawable.ic_drawer );
    mActionBar.setDisplayHomeAsUpEnabled( true );
        mActionBar.setHomeButtonEnabled( true ); // Makes the drawer icon enabled
        //mActionBar.setDisplayUseLogoEnabled( true ); // Hides the icon
        //mActionBar.setDisplayShowHomeEnabled( true );
        //mActionBar.setIcon( android.R.color.transparent ); 
        mActionBar.setDisplayShowHomeEnabled( false );
        mFragmentManager = mActivity.getSupportFragmentManager();
    
        
  }
  
  
  @Override public void onActivityCreated( Bundle savedInstanceState ) {
    
    super.onActivityCreated( savedInstanceState );
    
    getView().findViewById( R.id.NavigationArtistsAll ).setOnClickListener( this );
    getView().findViewById( R.id.NavigationAlbumsAll ).setOnClickListener( this );
    getView().findViewById( R.id.NavigationGenresAll ).setOnClickListener( this );
    getView().findViewById( R.id.NavigationPlaylistsAll ).setOnClickListener( this );
    getView().findViewById( R.id.NavigationSearch ).setOnClickListener( this );
    getView().findViewById( R.id.NavigationStarred ).setOnClickListener( this );
    getView().findViewById( R.id.NavigationSongsAll ).setOnClickListener( this );
        
    
    View settingsButton = getView().findViewById( R.id.SettingsButton );
    if ( null != settingsButton ) {
      
      settingsButton.setOnClickListener( this );
      
    } else {
      
      // Add extra options into the app overflow menu
      
    }
    
    getActivity().getContentResolver().registerContentObserver(
        MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, true, mediaStoreChanged );
    
    getActivity().getContentResolver().registerContentObserver(
        MediaStore.Audio.Playlists.Members.getContentUri( "external",
            Long.parseLong( mPlaylistManager.createStarredIfNotExist() ) ), true, mediaStoreChanged );
    
     
     MusicBrowserFragment = ( MusicBrowserFragment ) getActivity().getSupportFragmentManager().findFragmentById( R.id.MusicBrowserFragment );
     
     
  }
    
  
  @Override public void onPause() {
    super.onPause();
  }
  
  @Override public void onDestroy() {
    super.onDestroy();
    
    getActivity().getContentResolver().unregisterContentObserver( mediaStoreChanged );
    
  }
  
  @Override public void onClick( View v ) {
    
    int id = v.getId();
    load( id );
    
  }
  
  protected void load( int id ) {
    
    Fragment mNewFragment = null;
    
    switch ( id ) {
    
    case R.id.NavigationArtistsAll:
      mNewFragment = new ArtistsAllFragment();
      break;
      
    case R.id.NavigationAlbumsAll:
      mNewFragment = new AlbumsAllFragment();
      break;
      
    case R.id.NavigationGenresAll:
        mNewFragment = new GenresAllFragment();
      break;
      
    case R.id.NavigationSongsAll:
      
        mNewFragment = new SongsFragment();
      break;
    
    case R.id.NavigationStarred:
      
      mNewFragment = new PlaylistsOneFragment();
      ((PlaylistsOneFragment)mNewFragment).setMediaID( mPlaylistManager.createStarredIfNotExist() );
      
      break;
    
    case R.id.NavigationSearch:
      
      mNewFragment = new SearchFragment();
      
      break;
    case R.id.SettingsButton:
        
        Intent launchSettingsIntent = new Intent( getActivity(), SettingsActivity.class);
        getActivity().startActivity( launchSettingsIntent );
        
      break;
    default:
      
      mNewFragment = new PlaylistsAllFragment();
      break;
      
    }
    
    if ( null != mNewFragment ) {
      
      transactFragment( mNewFragment );
      
    }
    
  }
  
  ContentObserver mediaStoreChanged = new ContentObserver(new Handler()) {

        @Override public void onChange( boolean selfChange ) {
            
            mActivity.runOnUiThread( new Runnable() {

        @Override public void run() {
          
          //adapter.notifyDataSetChanged();
          
        }
              
            });
            
            super.onChange( selfChange );
            
        }

  };
  
    
    public void showNowPlaying() {
      
      MusicBrowserFragment.showNowPlaying();
      
    }
    
    public void showSearch() {
      
      Fragment mSearchFragment = new SearchFragment();
      
      transactFragment( mSearchFragment );
      
    }
    
    public void transactFragment( Fragment mFragment ) {
      
      MusicBrowserFragment.transactFragment( mFragment );
      
      mCloseWarningOn = false;
      
    }
    
    public boolean onKeyDown( int keycode, KeyEvent e ) {
      
      switch ( keycode ) {
          
          case KeyEvent.KEYCODE_SEARCH:
            
            showSearch();
            return true;
          
          case KeyEvent.KEYCODE_BACK:
            
            if ( mFragmentManager.getBackStackEntryCount() == 0 ) {
              
              if ( !mCloseWarningOn ) {
                
                android.widget.Toast.makeText( mActivity, getString( R.string.back_warning ), android.widget.Toast.LENGTH_LONG ).show();
                mCloseWarningOn = true;
                
                return true;
                
              }
              
            } else {
              
              mCloseWarningOn = false;
              
            }
            break;
      }
      
      return false;
      
    }
  
  public void setActionbarTitle( String titleString ) {
    
    mActionbarTitle = ( CharSequence ) titleString;
    
    mActionBar.setTitle( mActionbarTitle );
    
  }
  
  public void setActionbarSubtitle( String subtitleString ) {
    
    mActionbarSubtitle = ( CharSequence ) subtitleString;
    
    mActionBar.setSubtitle( mActionbarSubtitle );
    
  }
    
}
Java Source Code List
