Android Open Source - PlayTunes Search History

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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...

Java Source Code

package com.ideabag.playtunes.util;
/* w  w  w  .ja va 2  s .c om*/
import java.util.ArrayList;

import com.google.gson.Gson;
import com.ideabag.playtunes.R;

import android.content.Context;
import android.content.SharedPreferences;

public class SearchHistory {
  
  public static final String TAG = "SearchHistory";
  
  public static final int SEARCH_HISTORY_SIZE = 20;
  
  public static void addSearchQuery( Context mContext, String mQuery ) {
    
    Gson gson = new Gson();
    
    mQuery = mQuery.trim();
    
    SharedPreferences mSharedPrefs = mContext.getSharedPreferences( mContext.getString( R.string.prefs_file ), Context.MODE_PRIVATE );
    SharedPreferences.Editor edit = mSharedPrefs.edit();
    
    String jsonArray = mSharedPrefs.getString( mContext.getString( R.string.pref_key_search_history ), "[]" );
    
    // Let's assume perfect decoding to a String array[]
    //Arrays.
    //JSONArray array = new JSONArray( jsonArray );
    
    android.util.Log.i( TAG, "" + jsonArray );
    String[] mSearchHistory = gson.fromJson( jsonArray, String[].class );
    ArrayList< String > mSearchArray = new ArrayList< String >( mSearchHistory.length );
    

    
    for ( int i = 0, count = mSearchHistory.length; i < count; i++ ) {
      
      // Remove nulls
      if ( mSearchHistory[ i ] != null ) {
        
        mSearchArray.add( mSearchHistory[ i ] );
        
      }
      
    }
    
    
    int index = mSearchArray.indexOf( mQuery );
    
    
    if ( index >= 0 ) {
      
      String tmp = mSearchArray.remove(index);
      mSearchArray.add( 0, tmp );
      
    } else {
      
      mSearchArray.add( 0, mQuery );
      
    }
    
    edit.putString( mContext.getString( R.string.pref_key_search_history ), gson.toJson( mSearchArray.toArray() ) );
    edit.commit();
    
  }
  
  public static void clearHistory( Context mContext ) {
    
    SharedPreferences mSharedPrefs = mContext.getSharedPreferences( mContext.getString( R.string.prefs_file ), Context.MODE_PRIVATE );
    SharedPreferences.Editor edit = mSharedPrefs.edit();
    
    edit.putString( mContext.getString( R.string.pref_key_search_history ), "[]" );
    
    edit.commit();
    
  }
  
}

Java Source Code List

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