[Flutter] Useful commands and tips

By


Here is a list of useful Flutter's commands / tips when you start developing with (in progress...).
(To find a topic try to search a keyword on this webpage... will be updated through time)

Create a new project in visual Studio Code

> CMD + Shift + P to display action palette

> flutter: New project


Update Flutter to the latest version

> flutter upgrade


Check actual Flutter version

> flutter --version


Flutter change of (git) channel (master, dev, beta stable)

> flutter channel beta

> flutter channel master

> flutter pub cache repair //To perform a clean reinstall of the packages in your system cache, use pub cache repair

> flutter clean //flutter clean will delete the /build folder


Activate / Deactivate web support for a project

> flutter config --no-enable-web

> flutter config --enable-web


Disable "debug banner" (MaterialApp's debugShowCheckedModeBanner)

// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,


Using SafeArea (is simple !)

In your Widget, just use the SafeArea Widget as child:

builder: (vm) {
return SafeArea(
top: true,
bottom: true,
...




 

Comments

Post a Comment

Popular posts from this blog

EMGU with Xamarin Forms guide [part 1]

By
Image
I- Introduction, OpenCV and EMGU Do you know OpenCV ( Open Source Computer Vision Library:  https://opencv.org/ ) ?  This open source library let's you work and play with images and videos with a lot of powerful image processing algorithms !  If you want some details, I suggest you to first navigate to the link above or search for 'OpenCV' on Google.  Examples of OpenCV processing found on the web (filters, object detection, edges...): EMGU is a .NET OpenCV wrapper. That means that you will be able to use OpenCV functionnalities in your .NET projects using C# for instance. EMGU is cross platform, so you will also be able to use it in your Xamarin projects ! That's great because there is no advanced image processing library in Xamarin. In this article, we will talk about EMGU and list the steps to setup a Xamarin Forms project using EMGU . It may help you because, we must say that it's not a trivial task...  II-What do I need to
Read more »

[Xamarin Forms] Custom bottom bordered entry (iOS & Android)

By
Image
Custom entry with renderers For my Xamarin Forms project I needed to render an 'Entry' control with a bottom border of a specific color. There are several possibilities but I will show you mine. For that, I used renderers. iOS one is particularly not trivial. The wished result look like that: iOS Renderer [assembly: ExportRenderer(typeof(ExtDatePicker), typeof(ExtDatePickerRenderer))] namespace MyCompany.iOS.Renderers { public class ExtDatePickerRenderer : DatePickerRenderer { protected override void OnElementChanged(ElementChangedEventArgs<DatePicker> e) { base.OnElementChanged(e); // Need to connect to Sizechanged event because first render time, Entry has no size (-1). if (e.NewElement != null) e.NewElement.SizeChanged += (obj, args) => { var xamEl = obj as DatePicker; if (xamEl == null) ret
Read more »

Xamarin.Forms device unique ID...

By
As in a lot of applications, you will probably need to get a unique identifier to identify a unique user . And it becomes a little more complicated when you have to deal with different platforms like Android, iOS and Windows Phone... Here is a simple solution that you can implement in Xamarin Forms that I found on this blog: http://codeworks.it/blog/?p=260 First define a service that you will use in your Xamarin Forms Application: // Your service interface definition public interface IDevice { string GetIdentifier(); } // How you get your service in your app IDevice device = DependencyService.Get (); string deviceIdentifier = device.GetIdentifier(); And here are the implementations for Android / Windows Phone and the most complicated, iOS platform: // WINDOWS PHONE [assembly: Xamarin.Forms.Dependency(typeof(WinPhoneDevice))] namespace XFUniqueIdentifier.WinPhone { public class WinPhoneDevice : IDevice { public string GetIdentifier() { byte[] myDeviceId = (
Read more »