Adding Borders to Cards in Flutter (2 Examples)

July 18, 2022 A Goodman

This article walks you through a couple of practical examples about adding borders to Cards in Flutter. Card Border Customization To config borders for a Card widget, focus on its shape property. We can set this…

Flutter: How to Fully Print a Long String/List/Map

July 18, 2022 A Goodman

If you’re running a Flutter with an iOS simulator or an Android emulator by using the following command: Then you’ll notice that whenever you print out a long string, list, map, or JSON data to the…

Working with ListWheelScrollView in Flutter (2 Examples)

July 22, 2022 A Goodman

This article is about ListWheelScrollView in Flutter. We’ll discover the fundamentals of the widget and then study 2 different examples. The first example is straightforward and nondescript, while the second one is a result of customization…

Flutter: Get Current Scroll Offset in ListView/GridView

July 16, 2022 A Goodman

This article shows you how to get the current scroll offset (that indicates the distance to the top, in pixels) in a ListView or other scrollable widgets in Flutter like GridView, SingleSchildScrollView, CustomScrollView, etc. We’ll discover…

Flutter BottomAppBar: Tutorial & Examples

July 15, 2022 A Goodman

This article is about the BottomAppBar widget in Flutter. We’ll cover the fundaments and walk through a couple of examples (from basics to advanced) of implementing and customizing the widget in practice. A Quick Overview To…

Flutter: Rendering an Image from Byte Buffer/Int8List

July 14, 2022 A Goodman

In Flutter, you can render an image from an Int8List of bytes by using the Image.memory constructor like so: If what you have are byte buffers, use this: Example This example does the following things: Reading…

Adding a Border to an Image in Flutter (3 Examples)

July 14, 2022 A Goodman

This article shows you how to add a border to an image in Flutter. What is the point? To display an image in Flutter, we use the Image widget. However, it doesn’t ship a direct option…

Dart: Sorting Entries of a Map by Its Values

July 4, 2022 A Goodman

Imagine your boss gives you a Dart map like so: And then he asks you to sort the map in the ascending/descending order of the map’s values. How do you solve this problem and make him…

How to Reverse/Shuffle a List in Dart

July 4, 2022 A Goodman

The two examples below show you how to reverse and shuffle a given list in Dart. Reversing a Dart list The code: Output: Shuffling a Dart list We can shuffle a list randomly by using the…

Dart: Calculate the Sum of all Values in a Map

July 4, 2022 A Goodman

This short article shows you a few ways to find the sum of all values in a given map in Dart (presume that all the values are numbers). Using a For/In loop Example: Output: Using Reduce()…

Flutter: 5 Ways to Add a Drop Shadow to a Widget

July 4, 2022 A Goodman

This practical article shows you a couple of different ways to add a drop shadow to a widget in Flutter. The first four approaches are to use self-written code while the last one is to make…

How to Reverse a String in Dart (3 Approaches)

June 22, 2022 A Goodman

The three examples below show you three different ways to reverse a given string in Dart (e.g. turn ABC to CBA). Example 1 Output: Example 2 Output: Example 3 Output: Futher reading: How to Subtract two…

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