android保存用户名密码

◆get SharedPreferences pref = getSharedPreferences(VocabTestMain.PREF_APPID,0); String username = pref.getString(VocabTestMain.PREF_USERNAME, ""); ◆put SharedPreferences pref = getSharedPreferences(VocabTestMain.PREF_APPID, 0); pref.edit().putString(VocabTestMain.PREF_USERNAME,txtName.getText().toString()).commit();?