Google Wayne Piekarski May 16, 2014

Stacking Notifications for Android Wear

Article Summary

Wayne Piekarski from Google shows how Android Wear notification stacking takes just a few lines of code. This 2014 developer preview tutorial remains a masterclass in API simplicity.

This Android Developers Blog post walks through implementing stacked notifications for Android Wear with complete working code. Piekarski provides a full code sample with step-by-step setup instructions, making it easy for developers to get started with wearable notifications immediately.

Key Takeaways

Critical Insight

Android Wear notification stacking is remarkably simple, requiring just a group key parameter added to your existing notification builders to create organized, hierarchical alerts across devices.

The post includes a specific gotcha about image sizes that could save you debugging time when working with notification icons.

About This Article

Problem

Android Wear developers faced a challenge: how to show multiple notifications without overwhelming users. They needed a way to group related alerts that worked across both phones and watches.

Solution

Wayne Piekarski showed how to use WearableNotifications.Builder with the GROUP_ORDER_SUMMARY parameter. This creates a summary notification on phones while keeping separate notifications on watches. You just need a group key string constant to make it work.

Impact

Developers can now organize wearable alerts with just a few lines of code. The setup takes nine straightforward steps and includes drawable assets and import statements you can use right away.