BottomNavigationBar: More than 3 items
Too many icons make the bar disappear
🎨 Flutter UI tutorials
Flutter tutorials related to everything visible seen on the screen.
From self-drawn UI widgets using the canvas to complex compositions of native Flutter widgets.
How to create a number input
There are situations, in which you want the user to be able to type only numbers into a form field …
Styling parts of a TextField
Styling the whole TextField can be done via the InputDecoration. But what if you have special …
Prevent back button from closing the app
If you do not define anything else, then Flutter will react by exiting the app on the (Android) user …
Pull to refresh
The pull-to-refresh gesture is a popular UI mechanic that is used not only in Google’s Material …
Smartphone movement speedometer
Communicating with the hardware of a phone can be tricky in Flutter because it abstracts from the …
Widget Magnifier
Especially when dragging markers across an image, it’s quite common to show a magnifier that …
The Matrix effect (digital rain)
I recently found out it’s been over twenty years since the release of The Matrix.
Implementing edge detection in Flutter
Note: Substantial parts of the code described here have been created during my working relationship …
Simulate an LED display
I have recently taken a ride with a train. I had a closer look at the LED display that shows the …