Mark suspend DAO @Transaction delegates as external operations. A @Transaction delegate in a DAO has user-code that might switch dispatchers and cause databases with a passthrough pool (AndroidSQLiteDriver) to deadlock due to a change of thread. There an optimization to not hop to the transaction thread for 'internal' Room operations but that is only safe knowing no dispatcher change occurs, something that can't be guaranteed with transaction delegates in DAOs. Bug: 543285472 Test: SuspendingQueryTest Cherrypick-From: https://android-review.googlesource.com/q/commit:ebd4a3d8e835f6aae6f39d4ee313accbf6031e23 Merged-In: I20a6ac10b9884691490860a02b7c1d2ec732642f Change-Id: I20a6ac10b9884691490860a02b7c1d2ec732642f
Jetpack is a suite of libraries, tools, and guidance to help developers write high-quality apps easier. These components help you follow best practices, free you from writing boilerplate code, and simplify complex tasks, so you can focus on the code you care about.
Jetpack comprises the androidx.* package libraries, unbundled from the platform APIs. This means that it offers backward compatibility and is updated more frequently than the Android platform, making sure you always have access to the latest and greatest versions of the Jetpack components.
Our official AARs and JARs binaries are distributed through Google Maven.
You can learn more about using it from Android Jetpack landing page.
For contributions via GitHub, see the GitHub Contribution Guide.
Note: The contributions workflow via GitHub is currently experimental - only contributions to the following projects are being accepted at this time:
When contributing to Jetpack, follow the code review etiquette.
We are not currently accepting new modules.
Head over to the onboarding docs to learn more about getting set up and the development workflow!
Our continuous integration system builds all in progress (and potentially unstable) libraries as new changes are merged. You can manually download these AARs and JARs for your experimentation.
Before uploading your first contribution, you will need setup a password and agree to the contribution agreement:
Generate a HTTPS password: https://android-review.googlesource.com/new-password
Agree to the Google Contributor Licenses Agreement: https://android-review.googlesource.com/settings/new-agreement
AndroidX uses git to store all the binary Gradle dependencies. They are stored in prebuilts/androidx/internal and prebuilts/androidx/external directories in your checkout. All the dependencies in these directories are also available from google(), or mavenCentral(). We store copies of these dependencies to have hermetic builds. You can pull in a new dependency using our importMaven tool.