Android Open Source - PlayTunes Search Artists Adapter

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Back to project page PlayTunes.

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.adapter.search;
//  www. j  a  v  a 2 s.c  om
import com.ideabag.playtunes.adapter.ArtistListAdapter;
import com.ideabag.playtunes.database.MediaQuery;
import com.ideabag.playtunes.util.ISearchableAdapter;

import android.content.Context;
import android.provider.MediaStore;

public class SearchArtistsAdapter extends ArtistListAdapter implements ISearchableAdapter {
  
  private String searchTerms;
  
  private int mTruncateAmount;
  
  public SearchArtistsAdapter( Context context, String query, int truncate, MediaQuery.OnQueryCompletedListener listener ) {
    super( context );
    
    mTruncateAmount = truncate;
    
    setOnQueryCompletedListener( listener );
    
    if ( null != query && query.length() > 0) {
      
      setSearchTerms( query );
      
    }
    
  }
  
  @Override public void setSearchTerms( String queryString ) {
    
    if ( null != queryString && !queryString.equals( searchTerms ) ) {
      
      searchTerms = queryString;
      
      String[] terms = searchTerms.split( "\\s+" );
      
      String mRelevance = "("; 
      
      for ( int i = 0, count = terms.length; i < count; i++ ) {
        
        String term = terms[ i ];
        
        if ( i > 0 ) {
          
          mRelevance += "+";
          
        }
        
        mRelevance += "(" + MediaStore.Audio.Artists.ARTIST + " LIKE '%" + term + "%' )";
        mRelevance += "+ 10 * (" + MediaStore.Audio.Artists.ARTIST + " LIKE '" + term + "%' )";
        mRelevance += "+ 3 * (" + MediaStore.Audio.Artists.ARTIST + " LIKE '% +" + term + "%' )";
        
      }
      
      mRelevance += ") WEIGHT";
      
      String[] artistsSelection = new String[] {
          
            MediaStore.Audio.Artists.ARTIST,
            MediaStore.Audio.Artists.NUMBER_OF_ALBUMS,
            MediaStore.Audio.Artists.NUMBER_OF_TRACKS,
            MediaStore.Audio.Artists._ID,
            mRelevance
        };
        
      mQuery = new MediaQuery(
          MediaStore.Audio.Artists.EXTERNAL_CONTENT_URI,
          artistsSelection,
          "WEIGHT > 0",
          null,
          "WEIGHT DESC"
          );
      
      requery();
      
    }
    
  }
  
  @Override public int getCount() {
    
    int count = 0;
    
    if ( null != mCursor ) {
      
      if ( mTruncateAmount <= 0 ) {
        
        count = mCursor.getCount();
        
      } else {
        
        count = ( mCursor.getCount() > mTruncateAmount ? mTruncateAmount : mCursor.getCount() );
        
      }
      
    }
    
    return count;
    
  }
  
  public int hasMore() {
    
    return ( mCursor != null && mTruncateAmount > 0 && mCursor.getCount() > mTruncateAmount ? mCursor.getCount() - mTruncateAmount : 0 );
    
  }
  
  public void setTruncateAmount( int mAmt ) {
    
    mTruncateAmount = mAmt;
    notifyDataSetChanged();
    
  }

}

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