Flutter Basic Concepts

See these 4 episodes to get a brief idea how flutter works. See it on 1.7x , though these are small videos

1. How Flutter Works: The Three Trees
2. How to Create Stateless Widgets - Flutter Widgets 101 Ep. 1
3. How Stateful Widgets Are Used Best - Flutter Widgets 101 Ep. 2
4. Inherited Widgets Explained - Flutter Widgets 101 Ep. 3
5. When to Use Keys - Flutter Widgets 101 Ep. 4

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Next: Some advance concepts