Basically when you hit ‘return’ on a function the function will stop and will not continue your iteration, so what you need to do is put it all on a list and then add it as a children of a widget you can do something like this: Widget getTextWidgets(List<String> strings) { List<Widget> list = new … Read more
I think adding color to the container is covering over the ink effect https://api.flutter.dev/flutter/material/InkWell/InkWell.html This code seems to work body: new Center( child: new Container( child: new Material( child: new InkWell( onTap: (){print(“tapped”);}, child: new Container( width: 100.0, height: 100.0, ), ), color: Colors.transparent, ), color: Colors.orange, ), ), just click the middle square. Edit: … Read more
There are multiple ways to interact with other stateful widgets. 1. findAncestorStateOfType The first and most straightforward is through context.findAncestorStateOfType method. Usually wrapped in a static method of the Stateful subclass like this : class MyState extends StatefulWidget { static of(BuildContext context, {bool root = false}) => root ? context.findRootAncestorStateOfType<_MyStateState>() : context.findAncestorStateOfType<_MyStateState>(); @override _MyStateState createState() … Read more
There’s a couple of things you could do here. @Mahi’s answer while correct could be a little more succinct and actually use push rather than showDialog as the OP was asking about. This is an example that uses Navigator.push: import ‘package:flutter/material.dart’; class SecondPage extends StatelessWidget { @override Widget build(BuildContext context) { return Container( color: Colors.green, … Read more
I believe the solutions are the following You actually either: Don’t want to display that ugly back button ( :] ), and thus go for : AppBar(…,automaticallyImplyLeading: false,…); Don’t want the user to go back – replacing current view – and thus go for: Navigator.pushReplacementNamed(## your routename here ##); Don’t want the user to go … Read more
General solution Just to clear things up, I did not expect this question to attract so much attention. Hence, I only answered for this very specific case. As explained in another answer WidgetsBinding offers a way to add a one time post frame callback. WidgetsBinding.instance!.addPostFrameCallback((_) { // executes after build }) As this callback will … Read more
https://pub.dev/packages/visibility_detector provides this functionality with its VisibilityDetector widget that can wrap any other Widget and notify when the visible area of the widget changed: VisibilityDetector( key: Key(“unique key”), onVisibilityChanged: (VisibilityInfo info) { debugPrint(“${info.visibleFraction} of my widget is visible”); }, child: MyWidgetToTrack()); )
How to include images in your app 1. Create an assets/images folder This should be located in the root of your project, in the same folder as your pubspec.yaml file. In Android Studio you can right click in the Project view You don’t have to call it assets or images. You don’t even need to … Read more
First import the services package: import ‘package:flutter/services.dart’; This will give you access to the SystemChrome class, which “Controls specific aspects of the operating system’s graphical interface and how it interacts with the application.” When you load the Widget, do something like this: @override void initState(){ super.initState(); SystemChrome.setPreferredOrientations([ DeviceOrientation.landscapeRight, DeviceOrientation.landscapeLeft, ]); } then when I leave … Read more
Flutter Launcher Icons has been designed to help quickly generate launcher icons for both Android and iOS: https://pub.dartlang.org/packages/flutter_launcher_icons Add the package to your pubspec.yaml file (within your Flutter project) to use it Within pubspec.yaml file specify the path of the icon you wish to use for the app and then choose whether you want to … Read more