Loading...

Android Fragment及Activity 中使用sharedpreferences

Temperature: 0 °C

Mark ChangMark Chang
author_tools

在Android下想要儲存執行資料的方式有好幾種,例如存在手機空間或者是資料庫空間。

這裡紀錄一下使用sharedpreferences的方式。

若是使用Activity方式如下:

儲存

String msg = "test";
SharedPreferences sharedPreferences = getSharedPreferences("data" , MODE_PRIVATE);
//取得SharedPreferences , 丟入的參數為("名稱" , 存取權限)
sharedPreferences.edit().putString("MSG" , msg).apply();

取回
SharedPreferences sharedPreferences = getSharedPreferences("data" , MODE_PRIVATE);
//取出資料, 丟入的參數為(key , 若是沒值,預設為多少)
showBMI.setText("上回儲存結果:" + "\r\n\n" + sharedPreferences.getString("MSG" , "..."));

若是使用Fragment方式如下:

儲存
String msg = "test";
SharedPreferences pref = getActivity().getPreferences(Context.MODE_PRIVATE);
SharedPreferences.Editor edt = pref.edit();
edt.putString("MSG" , msg);
edt.commit();

取回
SharedPreferences pref = getActivity().getPreferences(Context.MODE_PRIVATE);
showBMI.setText("上回儲存結果:" + "\r\n\n" + pref.getString("MSG", "..."));

以上紀錄~

https://innstory.com/story-Android_Fragment及Activity_中使用sharedpreferences-1867
Android

Prev
 利用_htaccess_限制可瀏覽ip來源

Next
使用jquery判斷上傳檔案大小 

About the Author

Mark Chang

離不開電腦的宅男

Visitor message

Leave some footprints to prove that you visited me

Recommended reading

Author's other related stories

Linux下查詢已安裝的PHP版本

Linux下查詢已安裝的PH...

紀錄PHP在Linux底下版本查詢方式 以Ubuntu為例 root@ubuntu:~# php –...

修改php.ini更改允許上傳檔案的大小

修改php.ini更改允許上...

使用vi或vim開啟php.ini #vim /etc/php/apache/php.ini 找到以...

Ubuntu環境下apache 目錄啟動.htaccess 功能

Ubuntu環境下apach...

.htaccess 檔案是目錄層面的設定檔,可以對目錄變更 Apache 的設定。 要使用 .hta...

Please select an option

error

Hi, thank you for your participation, but you cannot vote repeatedly~

Join innstory now and start recording your story.

"Innstory" is a place to store stories. We are committed to becoming a warm platform. Deepening the bonds between people is our direction.
We are convinced that the blockchain between people is not just a cold calculation. Join us now.

Wrong format