Questions tagged [flutter-onpressed]

72 questions
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FutureBuilder does not get into builder?

I want to get two parameters from createUser response. I have a raisedbutton and i want to use FutureBuilder when onPressed. future property works well, but i can not get in builder property. I tried everything but i could not find solution.…
jancooth
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How do I return a value when pushing on a button?

EDIT: how to find out outside of my class if the button has been pressed? I tried with a method named isPressed with an @override in WaitForvalidation() but it return always "false" when I click on the button. It's like an object is remake just…
Yann
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Navigator change page on async button press

Very new to Flutter. How would I push a new route predicated on a condition invoked by a button press? (asynchronous sign in call). This sort of thing: if signIn (async) = success -> Navigator.push Cheers Widget buildButtons() { return new…
C. Boyle
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flutter,dart - parameter from onpressed properties

I want to pass parameters onto the 'onpressed' :) == official syntax :( == get a void error : p == is the trick I wrote, which doesn't give me an editor error, but a console error with setstate() after dispose() message Is there a way…
bora
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If Else condition problem in onPressed() property in Dart/Flutter

I'm looking to highlight a button from a grid when it's pushed. Unfortunately, when I do so, the whole column lights up. As I'm new to flutter/Dart and to coding in general, I'm not sure if my problème is my lack of logic or something that I…
Théo
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How to link Flutter StaggeredGridView items individually?

Following a tutorial on StaggeredGridView, I successfully built a page to display staggered grids of text and an icon. The tutorial stopped short on explaining how to link each grid item separately. I am aware of onTap, GestureDetector, OnPressed,…
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How to give onpress function on gridview list in flutter?

i have a gridmodel list view in my flutter app,i have created dart file for each of the item present in the gridview but i dont know how to give onpress function on the gridmodel list view so that it will navigate me to next page class GridItem…
akshay dhone
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Flutter: Is there an onhold option instead of oppressed once to repeat SetState

I want a button which I can hold down and then Setstate is repeating, unless I stop holding it. I am a beginner and working at my first app. I want to calculate volume. People have to put in height, width and dept. I don't want in text(form)field,…
Margriet
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Flutter - Changing color of RaisedButton on press

Everything I have read about this suggests you can do this work with SetState. This is what I have been using and it will just not redraw. class ServerSelectionState extends State { bool server1Selected, server2Selected,…
Bisclavret
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I don't know how to activate the phone button to go back without appbar

I created a flutter webview, but when I try to go back to the previous page the app closes. How can I activate the back key on the phone? I would like to use the phone key without adding any more. I thought about using Onbackpressed but in flutter…
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flutter can't change of value of variable

i have this class : class BottomNavBar extends StatefulWidget { final int activeTabIndex; const BottomNavBar({Key? key, required this.activeTabIndex}) : super(key: key); @override BottomNavBarState createState() =>…
user16886755
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Navigating to a new page with button class

This is my buttons class. I want to use its on pressed function to navigate to another page. class DigerButtonu extends StatelessWidget { final String butonyazisi; final IconData butoniconu; final Function butonfonksiyonu; const…
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