SharedPreferences存取工具SpUtil

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package com.fei.utils;import android.content.Context;import android.content.SharedPreferences;import android.content.SharedPreferences.Editor;public class SpUtil {//存储的sharedpreferences文件名     private static final String FILE_NAME = "save_file_name";     /**     * 保存数据到文件     * @param context     * @param key     * @param data     */     public static void saveData(Context context, String key,Object data){            String type = data.getClass().getSimpleName();         SharedPreferences sharedPreferences = context                 .getSharedPreferences(FILE_NAME, Context.MODE_PRIVATE);         Editor editor = sharedPreferences.edit();                    if ("Integer".equals(type)){             editor.putInt(key, (Integer)data);         }else if ("Boolean".equals(type)){             editor.putBoolean(key, (Boolean)data);         }else if ("String".equals(type)){             editor.putString(key, (String)data);         }else if ("Float".equals(type)){             editor.putFloat(key, (Float)data);         }else if ("Long".equals(type)){             editor.putLong(key, (Long)data);         }                    editor.commit();     }            /**     * 从文件中读取数据     * @param context     * @param key     * @param defValue     * @return     */     public static Object getData(Context context, String key, Object defValue){                    String type = defValue.getClass().getSimpleName();         SharedPreferences sharedPreferences = context.getSharedPreferences                 (FILE_NAME, Context.MODE_PRIVATE);                    //defValue为为默认值，如果当前获取不到数据就返回它         if ("Integer".equals(type)){             return sharedPreferences.getInt(key, (Integer)defValue);         }else if ("Boolean".equals(type)){             return sharedPreferences.getBoolean(key, (Boolean)defValue);         }else if ("String".equals(type)){             return sharedPreferences.getString(key, (String)defValue);         }else if ("Float".equals(type)){             return sharedPreferences.getFloat(key, (Float)defValue);         }else if ("Long".equals(type)){             return sharedPreferences.getLong(key, (Long)defValue);         }                    return null;     }  }
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