API data not showing in flutter dropdown
i am trying to display data list API to dropdown but the result is not there, which i have to fix. I'm trying to change or update user data and have some data in the form of a list including…
Can't figure out this Error "The method 'map' can't be unconditionally invoked because the receiver can be 'null'" – Flutter
I'm following this speed code tutorial and I'm facing some problems during somewhere on 5:08. import 'package:flutter/material.dart'; import 'dart:math'; class WaveColorPainter extends CustomPainter { Paint? _paint; List<Color>? colors; @override void paint(Canvas canvas, Size size) { colors = List.from(Colors.accents); colors!.removeRange(6, 13);…
how to create vertical linear gradient in flutter?
I am trying to create a vertical lineargradient i.e from top-center to bottom-center like this image. I have come up with this code which creates diagonal gradient from top-left to bottom-right. How can I get a vertical linear-gradient instead? Container(…
FirebaseMessaging.instance.getInitialMessage() returning null – Flutter
After carefully trying other answer, nothing seems to work. Notification are working fine, when I click on them and the app has been initialised. When the app is closed or terminated it is impossible for me to redirect the user…
Changes in Object from Second Screen is also Changing the Value in First Screen in flutter dart
A class Object passing from First Screen to the second Screen While on the second screen when the object changed its value, it's also changing the value on first screen. Code of First Screen. (widget.templateModel is an object class that…
How can I resolve "The argument type ' – Flutter
The getter 'message' isn't defined for the type 'Object'. Try importing the library that defines 'message', correcting the name to the name of an existing getter, or defining a getter or field named 'message'. I searched and didn't find any…
snapshot.data!.docs; not working, The error appears on the word docs – Flutter
In the line of docs, an error appears. Why does this error appear? Is there an error in writing the code? I found this same question among the questions, but without an answer, I'm still a beginner and I hope…
Flutter – Invalid argument(s): No host specified in URI when displaying it in a carousel
How do I convert a XFile to a URI in order to display the image? I am selecting the image via gallery of the device(mobile phone). I do get this error when the carousel moves around Invalid argument(s): No host…
Getting this error while connection with firebase using flutter
Exception has occurred. PlatformException (PlatformException(channel-error, Unable to establish connection on channel., null, null)) enter image description here
How to navigate to home screen after successfully login in flutter?
I'm using the following code for login. But the problem is after successfully login it's not able to navigate to home page. If I navigate inside on pressed button then it automatically navigate to home and it will not check…