Question

我想用文件中的sharedPreferences将我的字符串信息保存为键值

Answer 1

以下代码显示如何创建和存储共享首选项数据：

  SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
  SharedPreferences.Editor editor = preferences.edit();
  editor.putString("Name","JITESH");
  editor.putString("Password","password1234");
  editor.commit();

以下显示了如何检索共享首选项数据：

SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
  String name = preferences.getString("Name","");
  String password = prefs.getString("Password", "");

此处显示的另一种做法是==＆gt;

显示了如何创建和存储共享首选项数据：

SharedPreferences prefs = getSharedPreferences("myDataStorage",
MODE_PRIVATE);
Editor mEditor = prefs.edit();
mEditor.putString("username","datastorageuser1");
mEditor.putString("password","password1234");
mEditor.commit();

以下显示了如何检索共享首选项数据：

SharedPreferences prefs = getSharedPreferences("myDataStorage",
MODE_PRIVATE);
String username = prefs.getString("username", "");
String password = prefs.getString("password", "");

更多访问我的博客

http://upadhyayjiteshandroid.blogspot.in/2013/01/android-working-with-shared-preferences.html

Answer 2

获取共享偏好：

SharedPreferences prefs = this.getSharedPreferences(
  "com.example.app", Context.MODE_PRIVATE);

阅读偏好：

String dateTimeKey = "com.example.app.datetime";

// use a default value using new Date()
long l = prefs.getLong(dateTimeKey, new Date().getTime());

编辑和保存首选项：

Date dt = getSomeDate();
prefs.edit().putLong(dateTimeKey, dt.getTime()).commit();

请参阅this

如何在android中使用SharedPreferences

2 个答案: