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Release Updates

ConstraintLayout 2.0.4

2020年10月29日星期四

ConstraintLayout 2.0.4 is now available on the google maven repository:

dependencies {

implementation 'androidx.constraintlayout:constraintlayout:2.0.4'

}

or if using the android.support packages:

dependencies {

implementation 'com.android.support.constraint:constraint-layout:2.0.4'

}

Documentation & Examples

Documentation is available on https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintLayout and https://developer.android.com/reference/androidx/constraintlayout/motion/widget/MotionLayout

Examples are available on https://github.com/android/views-widgets-samples/tree/master/ConstraintLayoutExamples

Source is available on https://github.com/AndroidX/constraintlayout

Bugfixes

This releases fixes a NPE that may happen when removing a child view of ConstraintLayout at runtime. It is recommended to update to this version.
List of issues closed with this release:

NPE in ConstraintLayout.Measurer (v2.0.3)	171901411

Google

Android Studio 4.2 Canary 15 available

2020年10月27日星期二

Canary or Dev channelHelp > Check for UpdatesAndroid Studio > Check for Updatesdownload it hereAndroid Studio Preview release notesreporting a bugvote for an existing issue General Fixes This update includes fixes for the following issues: Android Studio

Issue #170733015: Update GPU import to 2.3.0

AVD Manager

Issue #159878401: "Cold Boot Now" on AVD Manager does not really cold boot emulator

Build Analyzer

Issue #168687609: Showing Resolution message and open memory settings button when garbage memory time is 0.0 sec

Issue #169569758: Task duration should not be "0.0 seconds"

CPU

Issue #149108626: [System Trace V2] - Remove padding from top and bottom of minimap

Issue #170801047: Unable to create profiler recording configuration

DeploymentIssue #169819270: Errors in logcat on first install without install after non-compatible change Embedded Emulator

Issue #155284464: Emulator tool window icon should be 13x13: emulator.svg

Emulator

Issue #155221674: Embedded Emulator: Feature request for device frame on/off

Issue #162564820: "Enter" key doesn't work in Emulator tool window

Gradle

Issue #169825560: Rename deprecation target from 5.0 to 7.0

New Project Wizard

Issue #171074702: [NewModule] Missing border between left and details panel

Issue #169614872: [NewProject] Several spacing/alignment issues not built to-spec

Project System

Issue #170389448: QuickFix to use JDK from project structure not working

Run

Issue #170709330: "NoSuchMethodException: android.content.res.CompatResources.getLoaders []" when starting from Android Studio

Shrinker (R8)

Issue #170920164: "Unexpected usage left in method" error when compiling chrome with latest R8

Issue #171197204: Retargeting of invokes to DesugarCollections breaks inlining

Issue #170677722: Full mode - Fragment 1.3.0-beta01 - FORCE inlining on non-inlinable on FragmentManager

Testing

Issue #170753826: Revise Multi-device tests opt-in flow

Additionally the issues below were addressed in this release but may not necessarily be fixed: Apply Changes

Issue #169812146: Improve Kotlin lambda error messages

Build

Issue #171305664: CMake 3.18 support breaks when there's .asm file

Deployment

Issue #170750947: Parallelize deployer for multiple devices

Emulator

Issue #163608541: First time emulator launch using run does not appear in the android studio window

Import/Sync

Issue #169971952: Android Gradle build freezes

Resources

Issue #170867656: Bug: can't rename some resource files, and no way to reach translation tool if file isn't named "strings.xml"

Google

Android Studio 4.2 Canary 14 available

2020年10月20日星期二

Issue #170026127: ActivityResultFragmentVersionDetector lint failure when using 1.2.0-beta01 with fragment 1.3.0-beta01

Android Gradle Plugin

Issue #169252018: AGP fails to build libraries targeting java 1.7

Issue #164036336: Incremental changes with multi-release jars, or jars built with target 1.9 may break dexing

Issue #168091536: getText() and getString() trims new lines from the beginning of the string

Issue #138837769: Allow disabling resource validation in library modules (in parsing local resources)

Issue #169896233: Using jetpack compose breaks gradle configuration caching

C++

Issue #169442717: Prevent Android Studio to include unrelated files in project

Issue #169442540: Include header directories in project

C++ Debugger

Issue #169158699: Missing debug symbols, cannot debug .apk that is otherwise working fine

Import/Sync

Issue #169575797: Unable to download sources from maven.google.com

Jetifier

Issue #168038088: artifact replacements should use the version set in the project

Layout Editor

Issue #157093849: Favorite attributes in UI layout editor not saved correctly

Lint

Issue #169255669: Lint: ClassCastException in RestrictToDetector (related to KT-41290)

Issue #169483540: Lint false positive on ScopedStorage

Issue #170210653: Android LintError when `suppressAnnotations` is provided as an empty list

Issue #167593732: Add SARIF as supported output format for Lint

Issue #170240589: [Lint] OutdatedLibrary false positive on firebase-crashlytics

Navigation Editor

Issue #170059094: Unresolved reference for NavArgs declared at top of (nested) NavGraph

Resource Manager

Issue #169449461: Image Asset Studio doesn't overwrite all old files when generating files for new adaptive icon

Running Tests

Issue #163791525: INSTALL_PARSE_FAILED_NO_CERTIFICATES when running test on multiple devices

Shrinker (R8)

Issue #169584856: R8 - Compilation failed to complete

Issue #169671295: More error handling for retrace command

Issue #163981284: The retrace api implementation should take a mapping file

Issue #169672210: [retrace] Print message on waiting for std-in

Testing

Issue #156940162: Sorting column for status shouldn't be alphabetical

Upgrade Assistant

Issue #156100314: Consider handling Crashlytics versions in the upgrade assistant

Google

Android Studio 4.1 available in the Stable channel

2020年10月12日星期一

download it hererelease notes

Google

ConstraintLayout 2.0.2

2020年10月6日星期二

ConstraintLayout 2.0.2 is now available on the google maven repository:
dependencies { implementation 'androidx.constraintlayout:constraintlayout:2.0.2'}

or if using the android.support packages:

dependencies { implementation 'com.android.support.constraint:constraint-layout:2.0.2'}
Documentation & Examples
Documentation is available on https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintLayout and https://developer.android.com/reference/androidx/constraintlayout/motion/widget/MotionLayout
Examples are available on https://github.com/android/views-widgets-samples/tree/master/ConstraintLayoutExamples
Source is available on https://github.com/AndroidX/constraintlayoutBugfixesThis releases improves performances as well as fix a few issues. It is recommended to update to this version.

Handling of view GONE visibility in ConstraintLayout was incorrect in some situations
Handling of packed chains in ConstraintLayout was incorrect in some situations
Fixed inflation exception on API 15 for the Flow virtual layout helper
limitsBoundsTo was broken in MotionLayout
jump to end was broken in MotionLayout in some situations (chaining transitions)

Flow inflation exception on API 15	165312258
java.lang.ClassCastException: androidx.constraintlayout.solver.ArrayLinkedVariables cannot be cast to androidx.constraintlayout.solver.SolverVariableValues	165964943
The attribute "flow_horizontalAlign" was defined with the wrong format	168495397
Margins are not visible (gone)	162917675
VerticalBias not working when another view has a constraint to the top of the original view	167014942
Barrier makes constraint work incorrectly	167612342
When horizontal chain style is set to packed it is not working as expected	167701934
MotionLayout: Quick swipes outside of limitBoundsTo are not ignored	168373996
Setting the visibility of a View to GONE causes layout to render incorrectly in 2.0.1	168681861
ConstraintLayout 2.0.0/2.0.1 "gone" views is not taken into consideration the same way as in 2.0.0-rc1	166486001

Google

Android Studio 4.0.2 available

2020年10月6日星期二

Stable channelHelp > Check for UpdateAndroid Studio > Check for Updatesdownload hereAndroid Studio release notesreporting a bugvote for an existing issueGeneral fixesThis update includes fixes for the following public issues: Dexer (D8)

Issue #158502561: Invalid Maven POM file for the desugar_jdk_libs_configuration artifact

Issue #160905482: Desugaring broken for subclasses of ConcurrentHashMap

Issue #160909126: coreLibraryDesugaringEnabled seems to break ConcurrentHashMap when using Gson and reflection

Issue #159275214: [library desugar] Desugar java.util.TimeZone.getTimeZone(ZoneId zoneId)

Layout Editor

Issue #162809072: When I change a xml id attribute at Design mode, studio popup and ask changing another id. I click "No(local)" but studio find and change same name id in another files.

Lint

Issue #158128960: AGP 4.0 false positive Instantiatable Lint check if Application extends java class

Issue #155088391: Can no longer specify layout_height and layout_width in a style

Motion Editor

Issue #162506565: Motion Editor does not support the Release Candidates

Shrinker (R8)

Issue #160351050: Enum inlining uses the "wrong" name sometimes

Issue #160942326: Runtime errors when using R8 2.0+

Issue #167704467: Fatal Exception: java.lang.VerifyError

Issue #160901582: CompilationError during R8 phase when optimizations enabled

Issue #160769273: ConcurrentModificationException: TreeMap$PrivateEntryIterator.nextEntry

Google

Updates archive

Subscribe to updates

Release Updates

ConstraintLayout 2.0.4

ConstraintLayout 2.0.3

Android Studio 4.2 Canary 15 available

Android Studio 4.2 Canary 14 available

Android Studio 4.1 available in the Stable channel

ConstraintLayout 2.0.2

Android Studio 4.0.2 available