引用自：

https://www.thenewboston.com/forum/topic.php?id=3234

    private void msg_box(String title, String msg)    {
        AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);
        alertDialog.setTitle(title);
        //alertDialog.setPositiveButton("OK", this);
        //alertDialog.setNegativeButton("Cancel", this);
        alertDialog.setMessage(msg);
        alertDialog.show();
    }

 

使用 getSharedPreferences 函數儲存數據。

APP_NAME 改成 想設計的名稱，如：org.twgogo.wbf.Code_.web_browser

    public boolean set_config(String str,String name_){
        SharedPreferences sharedPref = getSharedPreferences("APP_NAME", MODE_PRIVATE);
        SharedPreferences.Editor editor = sharedPref.edit();
        editor.putString(name_, str);
        editor.apply();
        return true;
    }

   public String read_config(String name_){
        SharedPreferences sharedPref = getSharedPreferences("APP_NAME", MODE_PRIVATE);
        return sharedPref.getString(name_,"NULL");
    }