android.content.res.resources $ notfoundexception字符串資源編號爲0x0

Question

我得到這個錯誤，當我嘗試從另一個類調用構造函數來獲取從表中的數據的列表， 我的主要文件是

賬戶的.java

  try{ 
       List<PersonalInformation> temp = helper.findAll(); 
       Toast.makeText(getApplicationContext(), temp.size(), Toast.LENGTH_LONG).show(); 
       } 
       catch (Exception e) { 
        Toast.makeText(getApplicationContext(), e+"", Toast.LENGTH_LONG).show(); 

       } 

Answer 1

變化

Toast.makeText(getApplicationContext(), temp.size(), Toast.LENGTH_LONG).show(); 

到

Toast.makeText(getApplicationContext(), String.valueOf(temp.size()), Toast.LENGTH_LONG).show();