package com.woqi.caigou.utils;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.text.TextUtils;
import android.util.Base64;
import com.google.gson.Gson;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.StreamCorruptedException;
import java.util.ArrayList;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONException;
/**
* --------------------------------------------
* 描 述 ：
* 1.SharedPreferences工具类
* 封装了对Sp数据存储的基本操作
* -------------------------------------------
*/
public class SpUtils {
private final static String SP_NAME = "share_data";
private static SharedPreferences sp;
private static SharedPreferences getSp(Context context) {
if (sp == null) {
sp = context.getSharedPreferences(SP_NAME, Context.MODE_PRIVATE);
}
return sp;
}
/**
* 获取boolean 数据
*
* @param context
* @param key
* @return 如果没有值，返回false
*/
public static boolean getBoolean(Context context, String key) {
SharedPreferences sp = getSp(context);
return sp.getBoolean(key, false);
}
/**
* 获取boolean 数据
*
* @param context
* @param key
* @param defValue
* @return
*/
public static boolean getBoolean(Context context, String key, boolean defValue) {
SharedPreferences sp = getSp(context);
return sp.getBoolean(key, defValue);
}
/**
* 存boolean缓存
*
* @param context
* @param key
* @param value
*/
public static void setBoolean(Context context, String key, boolean value) {
SharedPreferences sp = getSp(context);
Editor editor = sp.edit();
editor.putBoolean(key, value);
editor.commit();
}
/**
* 获取String 数据
*
* @param context
* @param key
* @return 如果没有值，返回null
*/
public static String getString(Context context, String key) {
SharedPreferences sp = getSp(context);
return sp.getString(key, null);
}
/**
* 获取String 数据
*
* @param context
* @param key
* @param defValue
* @return
*/
public static String getString(Context context, String key, String defValue) {
SharedPreferences sp = getSp(context);
return sp.getString(key, defValue);
}
/**
* 存String缓存
*
* @param context
* @param key
* @param value
*/
public static void setString(Context context, String key, String value) {
SharedPreferences sp = getSp(context);
Editor editor = sp.edit();
editor.putString(key, value);
editor.commit();
}
/**
* 获取int 数据
*
* @param context
* @param key
* @return 如果没有值，返回-1
*/
public static int getInt(Context context, String key) {
SharedPreferences sp = getSp(context);
return sp.getInt(key, -1);
}
/**
* 获取int 数据
*
* @param context
* @param key
* @param defValue
* @return
*/
public static int getInt(Context context, String key, int defValue) {
SharedPreferences sp = getSp(context);
return sp.getInt(key, defValue);
}
/**
* 存int缓存
*
* @param context
* @param key
* @param value
*/
public static void setInt(Context context, String key, int value) {
SharedPreferences sp = getSp(context);
Editor editor = sp.edit();
editor.putInt(key, value);
editor.commit();
}
/**
* 获取int 数据
*
* @param context
* @param key
* @return 如果没有值，返回-1
*/
public static long getLong(Context context, String key) {
SharedPreferences sp = getSp(context);
return sp.getLong(key, -1);
}
/**
* 获取int 数据
*
* @param context
* @param key
* @param defValue
* @return
*/
public static long getLong(Context context, String key, long defValue) {
SharedPreferences sp = getSp(context);
return sp.getLong(key, defValue);
}
/**
* 存int缓存
*
* @param context
* @param key
* @param value
*/
public static void setLong(Context context, String key, long value) {
SharedPreferences sp = getSp(context);
Editor editor = sp.edit();
editor.putLong(key, value);
editor.commit();
}
public static float getFloat(Context context, String key) {
SharedPreferences sp = getSp(context);
return sp.getFloat(key, 0);
}
/**
* 获取int 数据
*
* @param context
* @param key
* @param defValue
* @return
*/
public static float getFloat(Context context, String key, float defValue) {
SharedPreferences sp = getSp(context);
return sp.getFloat(key, defValue);
}
/**
* 存int缓存
*
* @param context
* @param key
* @param value
*/
public static void setFloat(Context context, String key, float value) {
SharedPreferences sp = getSp(context);
Editor editor = sp.edit();
editor.putFloat(key, value);
editor.commit();
}
/**
* 保存对象
*
* @param context
* @param object 保存的对象
*/
public static void setObject(Context context, Object object, String key) throws Exception{
String strJson = "";
Gson gson = new Gson();
strJson = gson.toJson(object);
SpUtils.setString(context, key,strJson);
}
/**
* 获取对象
*
* @param context
* @param key
* @return
*/
public static Object getObject(Context context, String key, Class clazz) throws Exception{
Object obj = null;
String str = getSp(context).getString(key, "");
if (!TextUtils.isEmpty(str)) {
Gson gson = new Gson();
obj = (Object) gson.fromJson(str, clazz);
}
return obj;
}
/**
* 保存List对象集合
* @param context
* @param key
* @param datas
*/
public static void setListObj(Context context, String key, List datas) {
JSONArray mJsonArray = new JSONArray();
for (int i = 0; i < datas.size(); i++) {
Object bean = datas.get(i);
mJsonArray.put(bean);
}
Editor editor = getSp(context).edit();
editor.putString(key, mJsonArray.toString());
editor.commit();
}
/**
* 获取本地List持久化数据
*
* @paramcontext
* @paramkey
* @return
*/
public static List getListObj(Context context , String key ){
List
String result = getSp(context).getString(key, "");
try {
JSONArray jsonArray = new JSONArray(result);
for(int i = 0; i Object bean = jsonArray.get(i); list.add(bean); } } catch (JSONException e) { e.printStackTrace(); } return list; } public static String setListString(List throws IOException { // 实例化一个ByteArrayOutputStream对象，用来装载压缩后的字节文件。 ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); // 然后将得到的字符数据装载到ObjectOutputStream ObjectOutputStream objectOutputStream = new ObjectOutputStream( byteArrayOutputStream); // writeObject 方法负责写入特定类的对象的状态，以便相应的 readObject 方法可以还原它 objectOutputStream.writeObject(list); // 最后，用Base64.encode将字节文件转换成Base64编码保存在String中 String SceneListString = new String(Base64.encode( byteArrayOutputStream.toByteArray(), Base64.DEFAULT)); // 关闭objectOutputStream objectOutputStream.close(); return SceneListString; } @SuppressWarnings("unchecked") public static List ClassNotFoundException { byte[] mobileBytes = Base64.decode(string.getBytes(),Base64.DEFAULT); ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(mobileBytes); ObjectInputStream objectInputStream = new ObjectInputStream(byteArrayInputStream); List SceneList = (List) objectInputStream.readObject(); objectInputStream.close(); return SceneList; } /** * 保存list 数据 * @param context * @param list * @param key */ public static void setListObj(Context context , List list , String key){ Editor editor = getSp(context).edit(); try { String str = setListString(list); editor.putString(key , str); editor.commit(); } catch (IOException e) { e.printStackTrace(); } } /** * 移除某一个key所对应的值 * * @param context * @param key */ public static void remove(Context context, String key) { Editor editor = getSp(context).edit(); editor.remove(key); editor.commit(); } /** * 移除Sp文件里面的所有数据 * * @param context */ public static void clear(Context context) { Editor editor = getSp(context).edit(); editor.clear(); editor.commit(); } }