Continued focus on developer experience by Flutter (Flutter forward extended Jinja)

Flutter forward extended jinja

Transcript

1. Software Developer GMT Consults Nicholas Muyobo
2. Continued Focus on Developer Experience Flutter Extended Jinja
3. Dart 3 Key Features Flutter News tool kit wonderous flutter Opportunities In flutter open source 1. 2. 3. 4.
4. Dart mission is to create the best programming language for building high-quality apps across any platform. Dart is approachable, any to lean, avoids unnecessary complexity, and is internally consistent. Dart 3 What are the features of dart 3
5. 100% Sound null safety + Key Features Dart 3 +
6. In Dart 3, you will always get null safety. Null safety prevents errors that results through unintentional access of variables set to null. For example if a method expects an integer but receives null, your app causes a runtime error. With sound null safety, variables are set non nullable by default. Dart 3 100% sound null safety
7. //integer var i = 25; // String var name = "Kampala"; JDJ FHFH
8. var favouriteProgrammingLanguage = "Java"; var favouriteProgrammingLanguage = null; JDJ FHFH
9. setProgrammingLanguage(data.favouriteLanguage); showProgramingLangs(list[1]) JDJ FHFH
10. Null safety Int age = 10; Language? favouriteLanguage; //explicit setProgrammingLanguage(data.favouriteLanguage); // *
11. Null safety • c# • Java • Kotlin • Dart Sound Null safety • Dart • Swift Sound null safety
12. List<int> getEvenNumbers(List<int> numbers) { List<int> evenNumbers = []; for (int number in numbers) { if (number % 2 == 0) { evenNumbers.add(number); } } return evenNumbers; } JDJ FHFH
13. //same with functional arguments void setBackground(Color? color){ //... }
14. //functional returns Color? chooseFavorite(){ //... }
15. //generic types List<Color?> favorites;
16. void setBackground(Color? color){ //... } Color backgroundColor = Color(OxFFee00); setBackground(backgroundColor); JDJ FHFH
17. • Safer • Faster Why null safety
18. User onboarding Account Creation / Login Content feeds and content pages Monetization Search & Settings + + + + + Key features
21. Wonderous flutter app preview
24. Google Summer Of Code (GSOC) Outreachy Internship Participate In hackthorns Other paid internships Include (Summer Of Bitcoin, Rails Girls, etc) + + + + Open Source Flutter Opportunities
25. Flutter series In April
26. Do amazing stuff with flutter
27. THANK YOU!