146: 3 Things Every Android Developer Needs to Know

• Dependency Injection

1. Constructor_setter_method injection
2. Service Locators or other DI frameworks
3. Common Frameworks

   1. [Dagger](https://google.github.io/dagger/android.html)
   2. [Koin](https://github.com/InsertKoinIO/koin)
   3. [Kodein](https://github.com/Kodein-Framework/Kodein-DI)
   4. [ToothPick](https://github.com/stephanenicolas/toothpick)
   

• How to test

  1. Functional / System
  2. Integration
  3. Unit
  4. Tools:
     1. jUnit
     2. Espresso
     3. Spek

• Keep it simple simple

  1. KISS principle KISS principle - Wikipedia
  2. Examples
     1. Code Duplication
        1. “Extract this into a method”
     2. Lets create a framework for this
     3. Kaushik’s - 3x rule
        • if something is duplicated 3 or more times, think about extracting it
     4. 3/6 Rule - In 6 months, will I be able to understand this in under 3 minutes?

Contact

@fragmentedcast or our Youtube channel @donnfelker and donnfelker (on Instagram) @kaushikgopal and kaushikgopal (on Instagram)