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Android Q Scoped Storage: Best Practices and Updates

Android Developers Blog

Posted by Jeff Sharkey, Software Engineer, and Seb Grubb, Product Manager

Application Sandboxing is a core part of Android’s design, isolating apps from each other. In Android Q, taking the same fundamental principle from Application Sandboxing, we introduced Scoped Storage.

Since the Beta 1 release, you’ve given us a lot of valuable feedback on these changes -- thank you for helping shape Android! Because of your feedback, we've evolved the feature during the course of Android Q Beta. In this post, we'll share options for declaring your app’s support for Scoped Storage on Android Q devices, and best practices for questions we've heard from the community.

Updates to help you adopt Scoped Storage

We expect that Scoped Storage should have minimal impact to apps following current storage best practices. However, we also heard from you that Scoped Storage can be an elaborate change for some apps and you could use more time to assess the impact. Being developers ourselves, we understand you may need some additional time to ensure your app’s compatibility with this change. We want to help.

In the upcoming Beta 3 release, apps that target Android 9 Pie (API level 28) or lower will see no change, by default, to how storage works from previous Android versions. As you update your existing app to work with Scoped Storage, you’ll be able to use a new manifest attribute to enable the new behavior for your app on Android Q devices, even if your app is targeting API level 28 or lower.

The implementation details of these changes will be available with the Beta 3 release, but we wanted to share this update with you early, so you can better prepare your app for Android Q devices. Scoped Storage will be required in next year’s major platform release for all apps, independent of target SDK level, so we recommend you add support to your app well in advance. Please continue letting us know your feedback and how we can better align Scoped Storage with your app’s use cases. You can give us input through this survey, or file bugs and feature requests here.

Best practices for common feedback areas

Your feedback is incredibly valuable and has helped us shape these design decisions. We also want to take a moment to share some best practices for common questions we’ve heard:

We’ve also provided a detailed Scoped Storage developer guide with additional information.

What’s ahead

It’s been amazing to see the community engagement on Android Q Beta so far. As we finalize the release in the next several months, please continue testing and keep the feedback coming. Join us at Google I/O 2019 for more details on Scoped Storage and other Android Q features. We’re giving a ”What’s new on Shared Storage” talk on May 8, and you’ll be able to find the livestream and recorded video on the Google I/O site.

April 25th 2019, 4:30 pm
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Get it on Google Play تحميل تطبيق نبأ للآندرويد مجانا