dart Archives - Musings of a Mobile App Software Developer

You may be an Android or Java developer, you’ve heard about Flutter, and are curious. So, is Dart easy to pick up as a Java developer?

The official website claims that Dart is “familiar to many existing developers”, and I generally agree with this statement. There is now a codelab Intro to Dart for Java developers: I do recommend you at least skim through it to get an overview.

In addition to the codelab, below is a list of concepts you will probably need to know fairly quickly.

Continue reading “From Java to Dart”

Natalie Masse Hooper

Mobile app developer. 11 years experience with the Android SDK, 4 years with Flutter. Past apps range from start ups to large tech (Google) and non tech (British Airways) companies. LinkedIn natalie ( at ) cogitas (dot) net

JSON is a cornerstone in most Android apps, but how do you parse JSON in Dart and Flutter?

As mentioned in my “4 tips to boost your software development career” post, I’ve been experimenting with Flutter recently. Dart, the language used by Flutter, comes with a good library to parse JSON (dart:convert) but after having used gson for years in my Android apps, I had to relearn how to parse JSON.

If you Google gson for Dart , you will also find a library called dson. However, for this code tutorial, I’m focusing on using dart:convert.

To follow the code tutorial, create a new app as follows.

flutter create parsejsonexample

1	flutter create parsejsonexample

If you’re unsure how to set up a Flutter app, check out Getting started with Flutter official tutorial.

Continue reading “How to parse JSON in Dart / Flutter”

Natalie Masse Hooper

The Fossil Fuel Non-Proliferation Treaty

Climate change, like nuclear weapons, is a major global threat. Bold and immediate action is needed to address the climate emergency.

The main cause of the climate emergency is fossil fuels. Coal, oil and gas are responsible for almost 80% of all carbon dioxide emissions since the industrial revolution.

Phasing out fossil fuel production, and fast-tracking progress towards safer and more cost-effective solutions, will require unprecedented international cooperation in three main areas – non-proliferation, global disarmament and a peaceful, just transition.

Find out more