Android 保存浏览记录 SharedPreTools

public class SharedPreTools {  //单键值存储---------------------------- public static String readShare(String sharename,String key) {  SharedPreferences user =  EdjApp.getInstance().getSharedPreferences(sharename,0);  return user.getString(key, ""); } public static void writeShare(String sharename,String key,String value ) {  SharedPreferences user = EdjApp.getInstance().getSharedPreferences(sharename, 0);  Editor editor = user.edit();  editor.putString(key, value);  editor.commit(); }    public static void removeShare(String sharename,String key ) {  SharedPreferences user = EdjApp.getInstance().getSharedPreferences(sharename, 0);  Editor editor = user.edit();  editor.remove(key);  editor.commit(); }    //多键值存储 public static void writegroup(String sharename,String key,String value) {  SharedPreferences call = EdjApp.getInstance().getSharedPreferences(sharename, 0);  String group = call.getString(key, "");  if (group.indexOf(value) < 0) {   String newgroup = group + "," + key;   Editor editor = call.edit();   editor.putString(key, newgroup);   editor.commit();  } } public static void removegroup(String sharename,String key) {  SharedPreferences call =  EdjApp.getInstance().getSharedPreferences(sharename, 0);  String group = call.getString(key, "");  String newgroup = group.replace("," + key, "");  Editor editor = call.edit();  editor.putString(key, newgroup);  editor.commit(); }    /**  * 储存单条对象  serviceInfo  * @param per_name  * @param key  * @param vaule  */ public static void saveServicePre(String per_name,String key,Object vaule){  SharedPreferences loginUserInfo = EdjApp.getInstance().    getSharedPreferences(per_name, Context.MODE_APPEND);  Editor preEd = null;  if(loginUserInfo != null){   preEd = loginUserInfo.edit();  }  if(preEd != null){   if(vaule != null){        ServiceInfo info1=(ServiceInfo)vaule;    info1.setSaveTime(getTimeId());    ByteArrayOutputStream baos = new ByteArrayOutputStream();          ObjectOutputStream oos=null;          try {          oos = new ObjectOutputStream(baos);                    oos.writeObject(info1);          } catch (IOException e) {          // TODO Auto-generated catch block          e.printStackTrace();          }    String info = new String(Base64.encodeBase64(baos.toByteArray()));    preEd.putString(key, info);   }   preEd.commit();  } }  /**  * 读取对象集合  serviceInfo  * @param per_name  * @param oblist  */ public static <T> List<T> readAllServicePre(String per_name){    SharedPreferences loginUserInfo = EdjApp.getInstance().      getSharedPreferences(per_name, Context.MODE_APPEND);    Map<String, ?> maps = loginUserInfo.getAll();//取出所有数据      List<T> oblist = new ArrayList<T>();    Iterator it = maps.values().iterator();    while(it.hasNext()){    String base64Str = (String) it.next();    byte[] base64Bytes = Base64.decodeBase64(base64Str .getBytes());    ByteArrayInputStream bais = new ByteArrayInputStream(base64Bytes);    ObjectInputStream ois;    try {      ois = new ObjectInputStream(bais);      T tempobj = (T) ois.readObject();      oblist.add(tempobj);//      LoginUser loginUser = (LoginUser)tempobj;    } catch (StreamCorruptedException e) {      // TODO Auto-generated catch block      e.printStackTrace();    } catch (IOException e) {      // TODO Auto-generated catch block      e.printStackTrace();    } catch (ClassNotFoundException e) {      // TODO Auto-generated catch block      e.printStackTrace();    }    }      ArrayList<ServiceInfo>tempserviceInfo = new ArrayList<ServiceInfo>();      tempserviceInfo.addAll((Collection<? extends ServiceInfo>) oblist);         Comparator<ServiceInfo> ascComparator = new ServiceInfoComparator();    Collections.sort(tempserviceInfo, ascComparator);   oblist.clear();   oblist.addAll((Collection<? extends T>) tempserviceInfo);       return oblist; } /**  * 删除单条对象数据  * @param per_name  * @param key  */ public static void removeObjectPre(String per_name,String key){  SharedPreferences loginUserInfo = EdjApp.getInstance().    getSharedPreferences(per_name, Context.MODE_APPEND);  Editor preEd = null;  if(loginUserInfo != null){   preEd = loginUserInfo.edit();  }  preEd.remove(key);  preEd.commit(); }  //当前时间为id public static long getTimeId() {  Date data = new Date();  long time=data.getTime();  return time; }  //--------------------------- /**  * 储存单条对象   * @param per_name  * @param key  * @param vaule  */ public static void saveObjectPre(String per_name,String key,Object vaule){  SharedPreferences loginUserInfo = EdjApp.getInstance().    getSharedPreferences(per_name, Context.MODE_APPEND);  Editor preEd = null;  if(loginUserInfo != null){   preEd = loginUserInfo.edit();  }  if(preEd != null){   if(vaule != null){    ByteArrayOutputStream baos = new ByteArrayOutputStream();          ObjectOutputStream oos=null;          try {          oos = new ObjectOutputStream(baos);          oos.writeObject(vaule);          } catch (IOException e) {          // TODO Auto-generated catch block          e.printStackTrace();          }    String info = new String(Base64.encodeBase64(baos.toByteArray()));    preEd.putString(key, info);   }   preEd.commit();  } }  /**  * 读取对象集合   * @param per_name  * @param oblist  */ public static <T> List<T> readAllObjectPre(String per_name){    SharedPreferences loginUserInfo = EdjApp.getInstance().      getSharedPreferences(per_name, Context.MODE_APPEND);    Map<String, ?> maps = loginUserInfo.getAll();//取出所有数据      List<T> oblist = new ArrayList<T>();    Iterator it = maps.values().iterator();    while(it.hasNext()){    String base64Str = (String) it.next();    byte[] base64Bytes = Base64.decodeBase64(base64Str .getBytes());    ByteArrayInputStream bais = new ByteArrayInputStream(base64Bytes);    ObjectInputStream ois;    try {      ois = new ObjectInputStream(bais);      T tempobj = (T) ois.readObject();      oblist.add(tempobj);    } catch (StreamCorruptedException e) {      // TODO Auto-generated catch block      e.printStackTrace();    } catch (IOException e) {      // TODO Auto-generated catch block      e.printStackTrace();    } catch (ClassNotFoundException e) {      // TODO Auto-generated catch block      e.printStackTrace();    }    }    return oblist; }

象的排序，需要 根据设置的时间来算public class ServiceInfoComparator implements Comparator<ServiceInfo> { @Override public int compare(ServiceInfo object1, ServiceInfo object2) {  // TODO Auto-generated method stub  return Double.compare(object2.getSaveTime(), object1.getSaveTime()); }}

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