85 lines
2.6 KiB
Plaintext
85 lines
2.6 KiB
Plaintext
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package com.example.administrator.ximengjianyu.utils;
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/**
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* Created by Xuer on 2017/4/24.
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*/
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import android.content.Context;
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import android.content.SharedPreferences;
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/**
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* SharedPreferences的一个工具类,调用setParam就能保存String, Integer, Boolean, Float, Long类型的参数
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* 同样调用getParam就能获取到保存在手机里面的数据
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* @author xiaanming
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*
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*/
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public class SharedPreferencesUtils {
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/**
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* 保存在手机里面的文件名
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*/
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private static final String FILE_NAME = "share_data";
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/**
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* 保存数据的方法,我们需要拿到保存数据的具体类型,然后根据类型调用不同的保存方法
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* @param context
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* @param key
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* @param object
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*/
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public static void setParam(Context context , String key, Object object){
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String type = object.getClass().getSimpleName();
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SharedPreferences sp = context.getSharedPreferences(FILE_NAME, Context.MODE_PRIVATE);
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SharedPreferences.Editor editor = sp.edit();
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if("String".equals(type)){
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editor.putString(key, (String)object);
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}
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else if("Integer".equals(type)){
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editor.putInt(key, (Integer)object);
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}
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else if("Boolean".equals(type)){
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editor.putBoolean(key, (Boolean)object);
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}
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else if("Float".equals(type)){
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editor.putFloat(key, (Float)object);
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}
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else if("Long".equals(type)){
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editor.putLong(key, (Long)object);
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}
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editor.commit();
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}
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/**
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* 得到保存数据的方法,我们根据默认值得到保存的数据的具体类型,然后调用相对于的方法获取值
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* @param context
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* @param key
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* @param defaultObject
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* @return
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*/
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public static Object getParam(Context context , String key, Object defaultObject){
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String type = defaultObject.getClass().getSimpleName();
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SharedPreferences sp = context.getSharedPreferences(FILE_NAME, Context.MODE_PRIVATE);
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if("String".equals(type)){
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return sp.getString(key, (String)defaultObject);
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}
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else if("Integer".equals(type)){
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return sp.getInt(key, (Integer)defaultObject);
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}
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else if("Boolean".equals(type)){
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return sp.getBoolean(key, (Boolean)defaultObject);
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}
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else if("Float".equals(type)){
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return sp.getFloat(key, (Float)defaultObject);
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}
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else if("Long".equals(type)){
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return sp.getLong(key, (Long)defaultObject);
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}
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return null;
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}
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}
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