Flutter text data if coming null?

Question

There is such a code and if the user is logged in as a visitor, it prints null because there is no e-mail information, how can I show it blank?

 Text(
    '$successmail \n\n'  
    style: TextStyle(
    fontSize: 22.0,
    fontStyle: FontStyle.normal,
    fontWeight: FontWeight.w300,
    color: Colors.black,
    letterSpacing: 0,
    ),
    ),

I tried putting things like question marks at the end of the variable but I don't know how to do it exactly.

'$successmail \n\n' -> successmail == null || successmail.isEmpty ? '' : '$successmail \n\n' — KuKu
– KuKu, Commented Mar 28, 2022 at 6:25

Amitha Mohanan · Accepted Answer · 2022-03-28 06:21:08Z

2

successmail == null ? SizedBox.shrink : Text(
    '$successmail \n\n'  
    style: TextStyle(
    fontSize: 22.0,
    fontStyle: FontStyle.normal,
    fontWeight: FontWeight.w300,
    color: Colors.black,
    letterSpacing: 0,
    ),
    ),

try this way

answered Mar 28, 2022 at 6:21

Amitha Mohanan

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1 Comment

Community Over a year ago

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My Car · Accepted Answer · 2022-03-28 11:46:44Z

1

Try this:

Text(
  '${sucessful ?? "No email"} \n \n'  
  style: TextStyle(
    fontSize: 22.0,
    fontStyle: FontStyle.normal,
    fontWeight: FontWeight.w300,
    color: Colors.black,
    letterSpacing: 0,
  ),
),

answered Mar 28, 2022 at 11:46

My Car

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Comments

Usama majid · Accepted Answer · 2022-03-28 06:22:16Z

0

On text widget try this: "${sucessful ?? "No email"} \n \n"

answered Mar 28, 2022 at 6:22

Usama majid

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2 Comments

Berke Kılıç Over a year ago

Hi, how can i use on this example ? i try this way but its doesnt work. image: NetworkImage( "https://example.com/${companies.file1 ?? "0.png"}")

Usama majid Over a year ago

you can use companies.file1 != null ? NetworkImage("yourLink") : NetworkImage("YourOtherLink")

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