SharedPreferences on Android

import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.preference.PreferenceManager;

public class GlobalSetting {

	public static int deviceWidth;
	public static int deviceHeight;

	public static final String FILL_COLUMN = "fillColumn";
	public static final String TAB_WIDTH   = "tabWidth";

	public static int tabWidth;
	public static int fillColumn;


    public static void savePreference(Context context, String key, Object value){
    	SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
    	Editor editor = prefs.edit();
    	if (value instanceof Boolean){
    		editor.putBoolean(key, (Boolean)value);
    	}else if (value instanceof String){
    		editor.putString(key, (String)value);
    	}else if (value instanceof Integer){
    		editor.putInt(key, (Integer)value);
    	}else if (value instanceof Float){
    		editor.putFloat(key, (Float)value);
    	}else if (value instanceof Long){
    		editor.putLong(key, (Long)value);
    	}
    	editor.commit();
    }
    
    /** 
        Load default preferences
        it should be called from onResume().
    */
    public static void loadPreferences(Context context){
    	SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
    	tabWidth = prefs.getInt(TAB_WIDTH, 8); 
    	fillColumn = prefs.getInt(FILL_COLUMN, 72); 
    }
}