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Pragmatic Flexible UI Sunitha Burri

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Metal 3D Models

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Multiple Content Based Apps in Verizon Media

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Yahoo News Yahoo Finance Yahoo Sports Aol

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Apps are Solving the Same Problem over and over again! Networking code to fetch content UI Rendering Persistence Error Handling Testing

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Time to Share Code!

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Yahoo News Yahoo Finance

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Flexible UI

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Demo Concept through Sample App

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Custom View

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createView()

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Get hold of Views

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Bind data to Views

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Consuming Custom View

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Custom Layout?

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findViewById() Bind data to View

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View Ids to Rescue

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View Id Contract

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@+id/ vs @id/

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Use @id instead of @+id

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Album Image view with @id

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Summary Implement Custom View ● Default Layout ● Publish View Id Contract ● Add capability to take in a custom layout Consumer of Custom View ● Custom Layout following View Id Contract ● Create Custom View by passing Custom Layout

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Views are declared as “nullable”

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Get hold of additional views

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Summary Implement Custom View ● Default Layout ● Publish View Id Contract ● Add capability to take in a custom layout Consumer of Custom View ● Custom Layout following View Id Contract ● Create Custom View by passing Custom Layout ● Do not include any views that are unnecessary for consumer ● Get hold of any consumer specific views and bind data/handle events

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RecyclerView

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onCreateViewHolder()

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onBindViewHolder()

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Summary onCreateViewHolder() - keep track of Custom View in View holder - Default layout/Custom layout onBindViewHolder() - delegate binding of data to custom view through View holder

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Difference between App dev & SDK dev

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Focus on Performance App cold start time UI rendering issues Track perf metrics Automation testing that covers all possibilities

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Simple vs Complex APIs published Documentation Convenience!

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Sharing to What Extent? Looking way forward in to Future Enhancements Supporting Instant apps!

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Thanks!