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;
/**
* --------------------------------------------
* Description:
* 1.SharedPreferences tool class
* Encapsulates the basic operations on Sp data storage
* -------------------------------------------
*/
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;
}
/**
* Get boolean data
*
* @param context
* @param key
* @return if there is no value, return false
*/
public static boolean getBoolean(Context context, String key) {
SharedPreferences sp = getSp(context);
return sp.getBoolean(key, false);
}
/**
* Get boolean data
*
* @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);
}
/**
* save boolean cache
*
* @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();
}
/**
* Get String data
*
* @param context
* @param key
* @return if there is no value, return null
*/
public static String getString(Context context, String key) {
SharedPreferences sp = getSp(context);
return sp.getString(key, null);
}
/**
* Get String data
*
* @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);
}
/**
* Save String cache
*
* @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();
}
/**
* Get int data
*
* @param context
* @param key
* @return if no value, return -1
*/
public static int getInt(Context context, String key) {
SharedPreferences sp = getSp(context);
return sp.getInt(key, -1);
}
/**
* Get int data
*
* @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);
}
/**
* save int cache
*
* @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();
}
/**
* Get int data
*
* @param context
* @param key
* @return if no value, return -1
*/
public static long getLong(Context context, String key) {
SharedPreferences sp = getSp(context);
return sp.getLong(key, -1);
}
/**
* Get int data
*
* @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);
}
/**
* save int cache
*
* @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);
}
/**
* Get int data
*
* @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);
}
/**
* save int cache
*
* @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();
}
/**
* save object
*
* @param context
* @param object saved object
*/
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);
}
/**
* get object
*
* @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;
}
/**
* Save the List object collection
* @param context
* @param key
* @param dates
*/
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();
}
/**
* Get local List persistent data
*
* @paramcontext
* @paramkey
* @return
*/
public static List<?> getListObj(Context context , String key ){
List<Object> list = new ArrayList<>();
String result = getSp(context).getString(key, "");
try {
JSONArray jsonArray = new JSONArray(result);
for(int i = 0; i <jsonArray.length(); i++){
Object bean = jsonArray.get(i);
list.add(bean);
}
} catch (JSONException e) {
e.printStackTrace ();
}
return list;
}
public static String setListString(List<Object> list)
throws IOException {
// Instantiate a ByteArrayOutputStream object to load the compressed byte file.
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
// Then load the resulting character data into ObjectOutputStream
ObjectOutputStream objectOutputStream = new ObjectOutputStream(
byteArrayOutputStream);
// The writeObject method is responsible for writing the state of an object of a particular class so that the corresponding readObject method can restore it
objectOutputStream.writeObject(list);
// Finally, use Base64.encode to convert the byte file to Base64 encoding and save it in String
String SceneListString = new String(Base64.encode(
byteArrayOutputStream.toByteArray(), Base64.DEFAULT));
// close objectOutputStream
objectOutputStream.close();
return SceneListString;
}
@SuppressWarnings("unchecked")
public static List<Object> getListString(String string) throws StreamCorruptedException, IOException,
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;
}
/**
* Save list data
* @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 ();
}
}
/**
* Remove the value corresponding to a key
*
* @param context
* @param key
*/
public static void remove(Context context, String key) {
Editor editor = getSp(context).edit();
editor.remove(key);
editor.commit();
}
/**
* Remove all data in Sp file
*
* @param context
*/
public static void clear(Context context) {
Editor editor = getSp(context).edit();
editor.clear();
editor.commit();
}
}