安卓开发工具类-SharedPreferences

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package com.wanggjie.weishi.utils;

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

import com.wanggjie.weishi.conf.Containts;

/**
* @author 王杰
* @time 2017/2/10 13:07
* @desc SharedPreferences保存和获取数据的工具
*/
public class SpUtils {

    //获取到SharedPreferences对象
    public static SharedPreferences getSp(String key, Context c) {
        return c.getSharedPreferences(Containts.SPFILENAME, Context.MODE_APPEND);
    }

   //设置一个boolean值到Sp
    public static void setSpBoolean(Context c, String key, boolean flag) {
        SharedPreferences.Editor edit = SpUtils.getSp(Containts.SPFILENAME, c).edit();
        edit.putBoolean(key, flag);
        edit.commit();
    }
   //从Sp中获取一个boolean值
    public static boolean getSpBoolean(Context c, String key){
        return SpUtils.getSp(Containts.SPFILENAME, c).getBoolean(key,false);
    }

   //从Sp中获取一个String值
    public static String getSpString(Context c, String key){
        return SpUtils.getSp(Containts.PASSWORD, c).getString(key,"");
    }

   //设置一个String值到Sp
    public static void setSpString(Context c, String key, String value) {
        SharedPreferences.Editor edit = SpUtils.getSp(Containts.PASSWORD, c).edit();
        edit.putString(key,value);
        edit.commit();
    }

}

package com.wanggjie.weishi.conf;

/**
* @author 王杰
* @time 2017/2/10 13:11
* @desc 自定义的常量类,用于保存数据
*/
public interface Containts {
    String SPFILENAME = "config";
    String AUTOUPDATE = "autoupdate";
    String BASE_URL = "http://192.168.140.2:8080";
    String UPDATE_RRL = BASE_URL + "/info.json";
    String PASSWORD = "password";
    String FINISHSETUP = "finishsetup";
    String SIM = "sim";
    String SAFEPHONE = "safephone";
    String SAFEONOFF = "safe_on_off";
    String BlackNumberDb = "blacknumberinfo.db";
    String DBNAME = "blacknumber";
    String DB_PHONE = "phone";
    String DB_MODE = "mode";
}

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