Acceptable Values: version ' Default Value: 'IC'. Notes: intellij. For bundled plugins version should be omitted: e. For sub-projects use project reference project ':subproject'. If you need to refer plugin's classes from your project, you also have to define a dependency in your plugin.
Acceptable Values: org. Notes: If true then user-defined values from patchPluginXml. Acceptable Values: true false Default Value: true. If true then the user-defined value from patchPluginXml.
If patchPluginXml. Acceptable Values: true false Default Value: false. Notes: Since sources are not needed while testing on CI, you can set it to false for a particular environment. Notes: Empty value means the Gradle cache directory will be used. Acceptable Values: String - E. Prefixes jbrex , jbrx or jbr are allowed.
It's recommended to use always the latest version. If set, verifierVersion is ignored. Available options: all default , android-only , without-android. Takes a precedence over the cliPath. Does it help to explicitly mark the dependency as changing?
No, this does not help in my case. This should work as is. Can you please provide the dependency declaration in question. Also try to run with -i for more information on what's going on under the covers. Add a comment. Active Oldest Votes. Improve this answer. This has been a life saver for me. Now it works perfectly. Thank you!! God bless you, I spent a lot of time to fix this problem. Android Lint can take much longer to complete on some projects due to a regression in its parsing infrastructure, resulting in slower computation of inferred types for lambdas in certain code constructs.
If your app defines custom permissions in its manifest, the Android Gradle plugin typically generates a Manifest. The plugin packages this class with your app, so you can more easily reference those permissions at runtime.
Generating the manifest class is broken in Android Gradle plugin 3. If you build your app with this version of the plugin, and it references the manifest class, you might see a ClassNotFoundException exception. To resolve this issue, do one of the following:.
Notably, improving project build speed was a main focus for this update. For information about these and other Project Marble updates, read the Android Developers blog post or the sections below. This minor update supports Android Studio 3. To see a list of noteable bug fixes, read the related post on the Release Updates blog.
The Data Binding annotation processor supports incremental annotation processing if you set android. This optimization results in improved incremental build performance. For a full list of optimized annotation processors, refer to the table of incremental annotation processors. Additionally, KAPT 1. When you enable unit tests to use Android resources, assets, and manifests by setting includeAndroidResources to true , the Android Gradle plugin generates a test config file containing absolute paths, which breaks cache relocatability.
You can instruct the plugin to instead generate the test config using relative paths, which allows the AndroidUnitTest task to be fully cacheable, by including the following in your gradle. When using Kotlin Gradle plugin 1. To resolve this issue , upgrade the plugin to version 1. New lint check dependency configurations: The behavior of lintChecks has changed and a new dependency configuration, lintPublish , has been introduced to give you more control over which lint checks are packaged in your Android libraries.
The following code sample uses both dependency configurations in a local Android library project. In general, packaging and signing tasks should see an overall build speed improvement.
If you notice a performance regression related to these tasks, please report a bug. To make sure you can still build you instant app on future versions of the plugin, migrate your instant app to using the dynamic feature plugin , which also allows you to publish both your installed and instant app experiences from a single Android App Bundle. R8 enabled by default: R8 integrates desugaring, shrinking, obfuscating, optimizing, and dexing all in one step—resulting in noticeable build performance improvements.
R8 was introduced in Android Gradle plugin 3. Now, with R8, desugaring, shrinking, obfuscating, optimizing, and dexing D8 are all completed in one step, as illustrated below. So, in this unlikely situation, you might need to add additional rules to keep that code in your build output.
The correct usage of unique package names are currently not enforced but will become more strict on later versions of the plugin. On Android Gradle plugin version 3. To learn more about setting a package name through the Android Gradle plugin, see Set the application ID. Gradle 4. New features Improved classpath synchronization: When resolving dependencies on your runtime and compile time classpaths, the Android Gradle plugin attempts to fix certain downstream version conflicts for dependencies that appear across multiple classpaths.
For example, if the runtime classpath includes Library A version 2. However, if the runtime classpath includes Library A version 1. To learn more, see Fix conflicts between classpaths. Improved incremental Java compilation when using annotation processors: This update decreases build time by improving support for incremental Java compilation when using annotation processors.
For projects not using Kapt Java-only projects : If the annotation processors you use all support incremental annotation processing , incremental Java compilation is enabled by default.
To monitor incremental annotation processor adoption, watch Gradle issue If, however, one or more annotation processors do not support incremental builds, incremental Java compilation is not enabled. Instead, you can include the following flag in your gradle. When you include this flag, the Android Gradle plugin executes the annotation processors in a separate task and allows the Java compilation task to run incrementally.
Better debug info when using obsolete API: When the plugin detects that you're using an API that's no longer supported, it can now provide more-detailed information to help you determine where that API is being used.
To see the additional info, you need to include the following in your project's gradle. You can also enable the flag by passing -Pandroid. Calling certain older methods in the Variants API, such as variant. To make sure that your build is optimized for lazy task configuration, invoke new methods that instead return a TaskProvider object, such as variant. Faster R class generation for library projects: Previously, the Android Gradle plugin would generate an R.
The plugin now generates a JAR containing your app's compiled R class directly, without first building intermediate R. This optimization may significantly improve build performance for projects that include many library subprojects and dependencies, and improve the indexing speed in Android Studio. This optimization avoids the need for the device to make a copy of the library and thus reduces the on-disk size of your app. If you'd rather disable this optimization, add the following to your gradle.
Single-variant project sync : Syncing your project with your build configuration is an important step in letting Android Studio understand how your project is structured. However, this process can be time-consuming for large projects. If your project uses multiple build variants, you can now optimize project syncs by limiting them to only the variant you have currently selected. You need to use Android Studio 3. When you meet these requirements, the IDE prompts you to enable this optimization when you sync your project.
The optimization is also enabled by default on new projects. When enabling the optimization for projects with Kotlin content, Gradle sync falls back to using full variants internally. To learn more, read Auto-download missing packages with Gradle.
The Android Gradle plugin now uses version You no longer have to build, sign, and manage multiple APKs, and users get smaller downloads that are optimized for their device. To learn more, read About Android App Bundles. Support for improved incremental build speeds when using annotation processors: The AnnotationProcessorOptions DSL now extends CommandLineArgumentProvider , which enables either you or the annotation processor author to annotate arguments for the processor using incremental build property type annotations.
Using these annotations improves the correctness and performance of incremental and cached clean builds. To learn more, read Pass arguments to annotation processors. Using this migration tool also sets the following flags to true in your gradle.
To learn more, read the AndroidX overview. New code shrinker, R8: R8 is a new tool for code shrinking and obfuscation that replaces ProGuard. To use AAPT2, make sure that you have the google dependency in your build.
Native multidex is now enabled by default. Previous versions of Android Studio enabled native multidex when deploying the debug version of an app to a device running Android API level 21 or higher. The plugin now enforces a minimum version of the protobuf plugin 0. The feature module plugin, com. For example, if your feature module name includes dashes, you get a build error. This behavior matches that of the dynamic feature plugin.
DEX compilation is the process of transforming. Compared to the previous compiler, called DX, D8 compiles faster and outputs smaller DEX files, all while having the same or better app runtime performance. D8 shouldn't change your day-to-day app development workflow.
However, if you experience any issues related to the new compiler, please report a bug. You can temporarily disable D8 and use DX by including the following in your project's gradle. For projects that use Java 8 language features , incremental desugaring is enabled by default. You can disable it by specifying the following in your project's gradle. Preview users: If you're already using a preview version of D8, note that it now compiles against libraries included in the SDK build tools —not the JDK.
Because local modules can't depend on your app's test APK, adding dependencies to your instrumented tests using the androidTestApi configuration, instead of androidTestImplementation , causes Gradle to issue the following warning:.
Some of these changes break existing builds. So, you should consider the effort of migrating your project before using the new plugin. If you don't experience the performance improvements described above, please file a bug and include a trace of your build using the Gradle Profiler.
This is a minor update to support Android Studio 3. Invoking Gradle this way will tell GMD to spin up 2 instances of pixel2 , and split the running of your 4 instrumented tests between those 2 emulated devices. As seen in this example, sharding through GMD spins up multiple identical virtual devices. If you apply sharding and have more than one device defined in build.
This report will contain the combined test results from all the shards. As such, it is more useful when you have larger test suites to run. Please read the release notes for more information about the ATD system image.
The ATD system images have hardware rendering disabled by default.
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