SharedPreferences方式保存数据,是把数据根据关键字保存到XML文件中的。特点是即使程序退出,数据也还会在,除非的卸载了程序。
1. 保存数据:
//保存注册码与注册状态 SharedPreferences.Editor editor = MyApplication.getContext().getSharedPreferences("Project", Context.MODE_PRIVATE).edit(); editor.putString("registerCode",registerCode); editor.putString("registerState",registerState); editor.apply();
2. 提取数据
//获取注册码与注册状态 SharedPreferences project = MyApplication.getContext().getSharedPreferences("Project", Context.MODE_PRIVATE); String registerCode = project.getString("registerCode",""); String registerState = project.getString("registerState","");