Given a double, I want to round it to a given number of points of precision after the decimal point, similar to PHP’s round() function. The closest thing I can find in the Dart docs is double.toStringAsPrecision(), but this is not quite what I need because it includes the digits before the decimal point in … Read more
I’ve just set up my Macbook for flutter development, So I downloaded flutter SDK, and placed it in my Documents. After, I set up my path variable to work with flutter in my command line. I execute the command flutter create todolist so I achieve a blank project. I also set up my visual studio … Read more
I would like to parse strings like 1 or 32.23 into integers and doubles. How can I do this with Dart? 10 Answers 10
I’m wondering what the recommended way of passing data to a stateful widget, while creating it, is. The two styles I’ve seen are: class ServerInfo extends StatefulWidget { Server _server; ServerInfo(Server server) { this._server = server; } @override State<StatefulWidget> createState() => new _ServerInfoState(_server); } class _ServerInfoState extends State<ServerInfo> { Server _server; _ServerInfoState(Server server) { this._server … Read more
I am configuring the Flutter SDK on my Linux Ubuntu 16.04 (Xenial Xerus) system. Why am I getting the following error when I run the flutter doctor? I have specified both PATHS for flutter and dart in the .bashrc file, but I get this error when I run flutter doctor: Doctor summary (to see all details, … Read more
It may sound easy but How can we do a multi-line editable textfield in flutter? TextField works only with a single line. Edit: some precisions because seems like it’s not clear. While you can set multiline to virtually wrap the text content, it’s still not multiline. It’s a single line displayed into multiple lines. If … Read more
Any solution to solve this problem? Stacktrace: [VERBOSE-2:ui_dart_state.cc(148)] Unhandled Exception: ServicesBinding.defaultBinaryMessenger was accessed before the binding was initialized. If you’re running an application and need to access the binary messenger before `runApp()` has been called (for example, during plugin initialization), then you need to explicitly call the `WidgetsFlutterBinding.ensureInitialized()` first. If you’re running a test, you … Read more
I’d like to execute a function after a certain delay after my Widget is built. What’s the idiomatic way of doing this in Flutter? What I’m trying to achieve: I’d like to start with a default FlutterLogo Widget and then change its style property after some duration. 10 Answers 10
How can I add shadow to the widget like in the picture below? This is my current widget code. 13 Answers 13
In Android match_parent and wrap_content are used to resize the widgets automatically relative to their parent to the content the widget contains. In Flutter it seems by default all widgets are set to wrap_content, how would I change it such that I can fill its width and height to that of its parent? 13 Answers … Read more
