Android-Shared Preferences 도구 클래스 - iOS의 NSUser Defaults와 마찬가지로 사용하기 좋습니다...

package com.st.www.xinwen;//     

import android.content.Context;


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

import java.util.Map;

/**
 * Created by Jay on 2015/9/2 0002.
 */
public class sp {
    /**
     *        SP   
     */
    public static final String FILE_NAME = "my_sp";

    /**
     *     
     * context
     * key
     * obj     （Boolean,Float,Integer,Long,String）
     */
    public static void put(Context context, String key, Object obj) {
        SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
        SharedPreferences.Editor editor = sp.edit();
        if (obj instanceof Boolean) {
            editor.putBoolean(key, (Boolean) obj);
        } else if (obj instanceof Float) {
            editor.putFloat(key, (Float) obj);
        } else if (obj instanceof Integer) {
            editor.putInt(key, (Integer) obj);
        } else if (obj instanceof Long) {
            editor.putLong(key, (Long) obj);
        } else {
            editor.putString(key, (String) obj);
        }
        editor.commit();
    }


    /**
     *       
     * key
     *   
     */
    public static Object get(Context context, String key, Object defaultObj) {
        SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
        if (defaultObj instanceof Boolean) {
            return sp.getBoolean(key, (Boolean) defaultObj);
        } else if (defaultObj instanceof Float) {
            return sp.getFloat(key, (Float) defaultObj);
        } else if (defaultObj instanceof Integer) {
            return sp.getInt(key, (Integer) defaultObj);
        } else if (defaultObj instanceof Long) {
            return sp.getLong(key, (Long) defaultObj);
        } else if (defaultObj instanceof String) {
            return sp.getString(key, (String) defaultObj);
        }
        return null;
    }

    /**
     *       
     */
    public static void remove(Context context, String key) {
        SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
        SharedPreferences.Editor editor = sp.edit();
        editor.remove(key);
        editor.commit();
    }


    /**
     *        
     */
    public static Map getAll(Context context) {
        SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
        Map map = sp.getAll();
        return map;
    }

    /**
     *       
     */
    public static void clear(Context context) {
        SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
        SharedPreferences.Editor editor = sp.edit();
        editor.clear();
        editor.commit();
    }

    /**
     *   key         
     */
    public static boolean contains(Context context, String key) {
        SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
        return sp.contains(key);
    }

}