For questions relating to Flutter's AlertDialog class. Use this tag in combination with the general [flutter] tag. If your question applies to Flutter more generally, use the [flutter] tag only.
Questions tagged [flutter-alertdialog]
157 questions
0
votes
2 answers
Flutter refreshing a column inside an AlertDialog
I have an AlertDialog showed using the showDialog() method, inside it I have a Column that contains two Text widgets, one of which is invisible. What I'm trying to do here is change the visibility of the text using the AlertDialog action…

Amine
- 1,396
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- 32
-1
votes
1 answer
An alert dialog is not displayed at the widget load, why?
In my application I am reading a qr code with the flutter_barcode_scanner package, and when reading a valid code it is supposed to show me an alert dialog saying that it is correct, otherwise, well, no.
To implement this package, an example tells us…
-1
votes
2 answers
Flutter - how to make popup disapears when there a multiple popups?
My problem is pretty straightforward.
I click on a button, then popup1 shows up, then I click on a button on popup1 and popup2 shows up, I click on a button popup2 and popup2 disapears, BUT popup1 is still there.
How do I make popup1 also disapear…

JS1
- 631
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-1
votes
2 answers
OverflowBar's children must not contain any null values, but a null value was found at index 1
hi I work to update mobile application build with flutter .but when I run this app I get this error
OverflowBar's children must not contain any null values, but a null value was found at index 1
final rep = await showDialog(
context:…

Youssef Bouazati
- 53
- 6
-1
votes
1 answer
How To Create Number Picker as a alert dialog in flutter?
I am developing e com application, when user click on quantity label want to show dialog box for select how many quantity he want to buy.
I tried to wrap number picker inside Alert dialog. It show alert dialog, but the problem is not updating value…

Sampath Dissanayake
- 41
- 8
-2
votes
1 answer
How to implement alertDialog after marker on google maps in flutter?
I want to show alertDialog after making marker on google maps because I want to ask user whether the marker on google maps is true or not. It quite similar when to show dialog for delete function. I got some problem when I was tried to make marker…
user14559438
-4
votes
1 answer
Make a Flutter alertdialog when the app open
So I want my Flutter app to make an alertdialog as soon as the app opens and make it collapse when I shake the mobile how can I make it ?

Mohamed Eldereny
- 69
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