is a mini series on writing maintainable code without pulling your hair out. Click here for , , . OOT Object Oriented trick #1 trick #2 trick #3 Construction We usually construct our objects in one place. It could be a constructor, builder, static factory method, abstract factory or any of the other Creational Patterns. There are times when objects created by a framework need some additional state that we need to set. Once such example, in Android, is the class. The is created by the Android framework and we can only add attributes via an . Activity Activity Intent DRY For the longest time while starting Activities and adding extras, I used to add a comment on top of the class mentioning all the that were required to start the properly. Something like: Activity extras Activity To me, such comments were I had to start this from various entry-points across many classes and had written everywhere. This violated good documentation. TargetActivity startActivity(intent) DRY: Don’t Repeat Yourself. As the team and codebase grows, a lot of things could happen to this class: More extras get added. Comments go out of sync with the additional extras. Your team may forget to pass certain extras. You may forget to add the new extras to older calls. Static Starter To avoid disappointment at runtime, it’s nice to define a contract within the target class itself. Use a static starter method for this: Android Studio also has a built-in live template for the starter: This helped me avoid a lot of confusion maintaining a project with about 150,000 lines of code over the period of 3 years. I hope this helps you too. I call this the for the lack of a better name. Please do let me know if there’s a name for this: . Starter Pattern(?) Twitter Check out the next trick . here If you liked this post, please hit the little heart! ❤

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Object Oriented Tricks: #4 Starter Pattern -Android Edition

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