Metrics

Declaring dependencies

To add a dependency on CardView, you must add the Google Maven repository to your project. Read Google's Maven repository for more information.

Add the dependencies for the artifacts you need in the build.gradle file for your app or module:

dependencies {
    implementation "androidx.metrics:metrics-performance:1.0.0-alpha02"
}

dependencies {
    implementation("androidx.metrics:metrics-performance:1.0.0-alpha02")
}

For more information about dependencies, see Add build dependencies.

Feedback

Your feedback helps make Jetpack better. Let us know if you discover new issues or have ideas for improving this library. Please take a look at the existing issues in this library before you create a new one. You can add your vote to an existing issue by clicking the star button.

Create a new issue

See the Issue Tracker documentation for more information.

Version 1.0.0

Version 1.0.0-alpha02

June 29, 2022

androidx.metrics:metrics-performance:1.0.0-alpha02 is released. Version 1.0.0-alpha02 contains these commits.

API Changes

• Renamed MetricsStateHolder to just Holder (within PerformanceMetricsState): (I5a4d9, b/226565716, b/213499234)

Bug Fixes

• Fixed timing issue where states could be replaced with new values before the frames had been processed where the old state would have been correct (aosp/2061892, b/213499234)
• Fixed concurrent modification exception in adding/removing listeners (aosp/2092714, b/213499234)
• Made startTime calculations more accurate (aosp/2027704, b/213245198)
• Fixed bug in FrameData.equals() implementation (aosp/2025866, b/218296544)

Version 1.0.0-alpha01

February 9, 2022

androidx.metrics:metrics-performance:1.0.0-alpha01 is released. Version 1.0.0-alpha01 contains these commits.

New Features

• The JankStats library provides functionality to instrument and receive callbacks in your application at runtime which can help find real world performance problems.
• JankStats combines an API that makes it easy to inject information about UI state with capabilities for tracking and reporting per-frame performance to allow developers to understand not whether an application has performance issues, but when and why.