Android support和Androidx库不能共存问题

一、问题描述
今天升级了android studio3.4.1,导入以前的一个旧项目,并且升级了lottie-android动画库到*新版本3.0.3,编译发现出现如下报错:

Manifest merger failed : Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91
is also present at [androidx.core:core:1.0.0] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory).
Suggestion: add ‘tools:replace=”android:appComponentFactory”‘ to <application> element at AndroidManifest.xml:5:5-20:19 to override.

于是按照报错日志提示,在AndroidManifest.xml的application中添加tools:replace=”android:appComponentFactory”,如下所示:

<application
android:allowBackup=”true”
android:icon=”@mipmap/ic_launcher”
android:label=”@string/app_name”
android:roundIcon=”@mipmap/ic_launcher_round”
android:supportsRtl=”true”
android:theme=”@style/AppTheme”
tools:ignore=”AllowBackup,GoogleAppIndexingWarning”
tools:replace=”android:appComponentFactory”>

然后编译继续报错如下:

Caused by: org.gradle.api.tasks.TaskExecutionException: Execution failed for task ‘:app:processDebugManifest’.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:95)
at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:91)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:57)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:119)
at org.gradle.api.internal.tasks.execution.ResolvePreviousStateExecuter.execute(ResolvePreviousStateExecuter.java:43)
at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:93)
at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:45)
at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:94)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:56)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:55)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:67)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:49)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:315)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:305)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:175)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:101)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:49)
at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:43)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:355)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:343)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:336)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:322)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:134)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:129)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:202)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:193)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:129)
… 6 more
Caused by: java.lang.RuntimeException: Manifest merger failed with multiple errors, see logs
at com.android.builder.core.AndroidBuilder.mergeManifestsForApplication(AndroidBuilder.java:558)
at com.android.build.gradle.tasks.ProcessApplicationManifest.doFullTaskAction(ProcessApplicationManifest.java:208)
at com.android.build.gradle.internal.tasks.IncrementalTask.taskAction(IncrementalTask.java:106)
at sun.reflect.GeneratedMethodAccessor849.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73)
at org.gradle.api.internal.project.taskfactory.IncrementalTaskAction.doExecute(IncrementalTaskAction.java:47)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:41)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:28)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$2.run(ExecuteActionsTaskExecuter.java:284)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:301)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:293)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:175)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:273)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:258)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$200(ExecuteActionsTaskExecuter.java:67)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:145)
at org.gradle.internal.execution.impl.steps.ExecuteStep.execute(ExecuteStep.java:49)
at org.gradle.internal.execution.impl.steps.CancelExecutionStep.execute(CancelExecutionStep.java:34)
at org.gradle.internal.execution.impl.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:69)
at org.gradle.internal.execution.impl.steps.TimeoutStep.execute(TimeoutStep.java:49)
at org.gradle.internal.execution.impl.steps.CatchExceptionStep.execute(CatchExceptionStep.java:33)
at org.gradle.internal.execution.impl.steps.CreateOutputsStep.execute(CreateOutputsStep.java:50)
at org.gradle.internal.execution.impl.steps.SnapshotOutputStep.execute(SnapshotOutputStep.java:43)
at org.gradle.internal.execution.impl.steps.SnapshotOutputStep.execute(SnapshotOutputStep.java:29)
at org.gradle.internal.execution.impl.steps.CacheStep.executeWithoutCache(CacheStep.java:134)
at org.gradle.internal.execution.impl.steps.CacheStep.lambda$execute$3(CacheStep.java:83)

通过查看日志知道这是AndroidManifest中的报错,然后到AndroidManifest.xml的Merged Manifest中查看报错信息为:

Merging Errors:
Error: tools:replace specified at line:5 for attribute android:appComponentFactory, but no new value specified app main manifest (this file), line 4
Error: Validation failed, exiting app main manifest (this file)

 

上面所说的意思就是,我们没有给android:appComponentFactory指定新的值,所以在application中继续添加android:appComponentFactory=”android.support.v4.app.CoreComponentFactory”,如下:

<application
android:allowBackup=”true”
android:icon=”@mipmap/ic_launcher”
android:label=”@string/app_name”
android:roundIcon=”@mipmap/ic_launcher_round”
android:supportsRtl=”true”
android:theme=”@style/AppTheme”
tools:ignore=”AllowBackup,GoogleAppIndexingWarning”
tools:replace=”android:appComponentFactory”
android:appComponentFactory=”android.support.v4.app.CoreComponentFactory”>

结果编译又出现报错,如下:

Caused by: com.android.ide.common.workers.WorkerExecutorException: 1 exception was raised by workers:
java.lang.RuntimeException: Duplicate class android.support.v4.app.INotificationSideChannel found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class android.support.v4.app.INotificationSideChannel$Stub found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class android.support.v4.app.INotificationSideChannel$Stub$Proxy found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class android.support.v4.graphics.drawable.IconCompatParcelizer found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class android.support.v4.os.IResultReceiver found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class android.support.v4.os.IResultReceiver$Stub found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class android.support.v4.os.IResultReceiver$Stub$Proxy found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class android.support.v4.os.ResultReceiver found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class android.support.v4.os.ResultReceiver$1 found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class android.support.v4.os.ResultReceiver$MyResultReceiver found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class android.support.v4.os.ResultReceiver$MyRunnable found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class androidx.core.graphics.drawable.IconCompatParcelizer found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class androidx.core.internal.package-info found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:28.0.0)
Duplicate class androidx.versionedparcelable.CustomVersionedParcelable found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.NonParcelField found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.ParcelField found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.ParcelImpl found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.ParcelImpl$1 found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.ParcelUtils found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.VersionedParcel found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.VersionedParcel$1 found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.VersionedParcel$ParcelException found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.VersionedParcelParcel found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.VersionedParcelStream found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.VersionedParcelStream$FieldBuffer found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.VersionedParcelStream$InputBuffer found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.VersionedParcelable found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)
Duplicate class androidx.versionedparcelable.VersionedParcelize found in modules classes.jar (androidx.versionedparcelable:versionedparcelable:1.0.0) and classes.jar (com.android.support:versionedparcelable:28.0.0)

 

从日志中可以看出,这是因为Android support和Androidx库不能共存引起的编译报错。因为*新的lottie-android动画库已经使用了Androidx库,而我的项目使用的还是Android support库,从而引起的冲突。因此解决办法有两种。

二、解决办法
方法一:将Android support库转换为Androidx库
(1)将build tools更新到3.4.1,如下:

dependencies {
classpath ‘com.android.tools.build:gradle:3.4.1’
}

gradle更新到5.1.1,如下:

distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip

依赖库统一更新到28.0.0,如下:

dependencies {
implementation fileTree(dir: ‘libs’, include: [‘*.jar’])
implementation”org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version”
implementation ‘com.android.support:appcompat-v7:28.0.0’
implementation ‘com.airbnb.android:lottie:3.0.3’
}

这一步非常重要,不然会导致第二步转换不成功。

(2)完成(1)之后,右键工程→Refactor→Migrate to AndroidX…,如下图所示:

%title插图%num

(3)选中所有需要重命名的目录,点击Do Refactor,如下图所示:

%title插图%num

(4)执行上面的步骤之后,发现Android support库已经被全部替换成了Androidx库了,至此项目已经可以成功的运行了。

方法二:将Androidx库转换为Android support库
前面已经说过了,这个问题是由于升级了lottie-android动画库到*新版本引起的,所以我们只需要将lottie-android动画库的版本降低到它使用Android support库的版本就可以了,其他的第三方库也是同样的解决方法,但是由于后续会更新升级第三方库,所以不推荐使用此方案解决这个问题,推荐使用方法一解决这样的报错问题。
————————————————

AndroidX和android.support对照表

android.support AndroidX
android.arch.core:common androidx.arch.core:core-common:2.0.0-rc01
android.arch.core:core androidx.arch.core:core:2.0.0-rc01
android.arch.core:core-testing androidx.arch.core:core-testing:2.0.0-rc01
android.arch.core:runtime androidx.arch.core:core-runtime:2.0.0-rc01
android.arch.lifecycle:common androidx.lifecycle:lifecycle-common:2.0.0-rc01
android.arch.lifecycle:common-java8 androidx.lifecycle:lifecycle-common-java8:2.0.0-rc01
android.arch.lifecycle:compiler androidx.lifecycle:lifecycle-compiler:2.0.0-rc01
android.arch.lifecycle:extensions androidx.lifecycle:lifecycle-extensions:2.0.0-rc01
android.arch.lifecycle:livedata androidx.lifecycle:lifecycle-livedata:2.0.0-rc01
android.arch.lifecycle:livedata-core androidx.lifecycle:lifecycle-livedata-core:2.0.0-rc01
android.arch.lifecycle:reactivestreams androidx.lifecycle:lifecycle-reactivestreams:2.0.0-rc01
android.arch.lifecycle:runtime androidx.lifecycle:lifecycle-runtime:2.0.0-rc01
android.arch.lifecycle:viewmodel androidx.lifecycle:lifecycle-viewmodel:2.0.0-rc01
android.arch.paging:common androidx.paging:paging-common:2.0.0-rc01
android.arch.paging:runtime androidx.paging:paging-runtime:2.0.0-rc01
android.arch.paging:rxjava2 androidx.paging:paging-rxjava2:2.0.0-rc01
android.arch.persistence.room:common androidx.room:room-common:2.0.0-rc01
android.arch.persistence.room:compiler androidx.room:room-compiler:2.0.0-rc01
android.arch.persistence.room:guava androidx.room:room-guava:2.0.0-rc01
android.arch.persistence.room:migration androidx.room:room-migration:2.0.0-rc01
android.arch.persistence.room:runtime androidx.room:room-runtime:2.0.0-rc01
android.arch.persistence.room:rxjava2 androidx.room:room-rxjava2:2.0.0-rc01
android.arch.persistence.room:testing androidx.room:room-testing:2.0.0-rc01
android.arch.persistence:db androidx.sqlite:sqlite:2.0.0-rc01
android.arch.persistence:db-framework androidx.sqlite:sqlite-framework:2.0.0-rc01
com.android.support.constraint:constraint-layout androidx.constraintlayout:constraintlayout:1.1.2
com.android.support.constraint:constraint-layout-solver androidx.constraintlayout:constraintlayout-solver:1.1.2
com.android.support.test.espresso.idling:idling-concurrent androidx.test.espresso.idling:idling-concurrent:3.1.0
com.android.support.test.espresso.idling:idling-net androidx.test.espresso.idling:idling-net:3.1.0
com.android.support.test.espresso:espresso-accessibility androidx.test.espresso:espresso-accessibility:3.1.0
com.android.support.test.espresso:espresso-contrib androidx.test.espresso:espresso-contrib:3.1.0
com.android.support.test.espresso:espresso-core androidx.test.espresso:espresso-core:3.1.0
com.android.support.test.espresso:espresso-idling-resource androidx.test.espresso:espresso-idling-resource:3.1.0
com.android.support.test.espresso:espresso-intents androidx.test.espresso:espresso-intents:3.1.0
com.android.support.test.espresso:espresso-remote androidx.test.espresso:espresso-remote:3.1.0
com.android.support.test.espresso:espresso-web androidx.test.espresso:espresso-web:3.1.0
com.android.support.test.janktesthelper:janktesthelper androidx.test.jank:janktesthelper:1.0.1
com.android.support.test.services:test-services androidx.test:test-services:1.1.0
com.android.support.test.uiautomator:uiautomator androidx.test.uiautomator:uiautomator:2.2.0
com.android.support.test:monitor androidx.test:monitor:1.1.0
com.android.support.test:orchestrator androidx.test:orchestrator:1.1.0
com.android.support.test:rules androidx.test:rules:1.1.0
com.android.support.test:runner androidx.test?1.1.0
com.android.support:animated-vector-drawable androidx.vectordrawable:vectordrawable-animated:1.0.0
com.android.support:appcompat-v7 androidx.appcompat:appcompat:1.0.0
com.android.support:asynclayoutinflater androidx.asynclayoutinflater:asynclayoutinflater:1.0.0
com.android.support:car androidx.car?1.0.0-alpha5
com.android.support:cardview-v7 androidx.cardview:cardview:1.0.0
com.android.support:collections androidx.collection:collection:1.0.0
com.android.support:coordinatorlayout androidx.coordinatorlayout:coordinatorlayout:1.0.0
com.android.support:cursoradapter androidx.cursoradapter:cursoradapter:1.0.0
com.android.support:customtabs androidx.browser:browser:1.0.0
com.android.support:customview androidx.customview:customview:1.0.0
com.android.support:design com.google.android.material:material:1.0.0-rc01
com.android.support:documentfile androidx.documentfile:documentfile:1.0.0
com.android.support:drawerlayout androidx.drawerlayout:drawerlayout:1.0.0
com.android.support:exifinterface androidx.exifinterface:exifinterface:1.0.0
com.android.support:gridlayout-v7 androidx.gridlayout:gridlayout:1.0.0
com.android.support:heifwriter androidx.heifwriter:heifwriter:1.0.0
com.android.support:interpolator androidx.interpolator:interpolator:1.0.0
com.android.support:leanback-v17 androidx.leanback:leanback:1.0.0
com.android.support:loader androidx.loader:loader:1.0.0
com.android.support:localbroadcastmanager androidx.localbroadcastmanager:localbroadcastmanager:1.0.0
com.android.support:media2 androidx.media2:media2:1.0.0-alpha03
com.android.support:media2-exoplayer androidx.media2:media2-exoplayer:1.0.0-alpha01
com.android.support:mediarouter-v7 androidx.mediarouter:mediarouter:1.0.0
com.android.support:multidex androidx.multidex:multidex:2.0.0
com.android.support:multidex-instrumentation androidx.multidex:multidex-instrumentation:2.0.0
com.android.support:palette-v7 androidx.palette:palette:1.0.0
com.android.support:percent androidx.percentlayout:percentlayout:1.0.0
com.android.support:preference-leanback-v17 androidx.leanback:leanback-preference:1.0.0
com.android.support:preference-v14 androidx.legacy:legacy-preference-v14:1.0.0
com.android.support:preference-v7 androidx.preference:preference:1.0.0
com.android.support:print androidx.print:print:1.0.0
com.android.support:recommendation androidx.recommendation:recommendation:1.0.0
com.android.support:recyclerview-selection androidx.recyclerview:recyclerview-selection:1.0.0
com.android.support:recyclerview-v7 androidx.recyclerview:recyclerview:1.0.0
com.android.support:slices-builders androidx.slice:slice-builders:1.0.0
com.android.support:slices-core androidx.slice:slice-core:1.0.0
com.android.support:slices-view androidx.slice:slice-view:1.0.0
com.android.support:slidingpanelayout androidx.slidingpanelayout:slidingpanelayout:1.0.0
com.android.support:support-annotations androidx.annotation:annotation:1.0.0
com.android.support:support-compat androidx.core:core:1.0.0
com.android.support:support-content androidx.contentpager:contentpager:1.0.0
com.android.support:support-core-ui androidx.legacy:legacy-support-core-ui:1.0.0
com.android.support:support-core-utils androidx.legacy:legacy-support-core-utils:1.0.0
com.android.support:support-dynamic-animation androidx.dynamicanimation:dynamicanimation:1.0.0
com.android.support:support-emoji androidx.emoji:emoji:1.0.0
com.android.support:support-emoji-appcompat androidx.emoji:emoji-appcompat:1.0.0
com.android.support:support-emoji-bundled androidx.emoji:emoji-bundled:1.0.0
com.android.support:support-fragment androidx.fragment:fragment:1.0.0
com.android.support:support-media-compat androidx.media:media:1.0.0
com.android.support:support-tv-provider androidx.tvprovider:tvprovider:1.0.0
com.android.support:support-v13 androidx.legacy:legacy-support-v13:1.0.0
com.android.support:support-v4 androidx.legacy:legacy-support-v4:1.0.0
com.android.support:support-vector-drawable androidx.vectordrawable:vectordrawable:1.0.0
com.android.support:swiperefreshlayout androidx.swiperefreshlayout:swiperefreshlayout:1.0.0
com.android.support:textclassifier androidx.textclassifier:textclassifier:1.0.0
com.android.support:transition androidx.transition:transition:1.0.0
com.android.support:versionedparcelable androidx.versionedparcelable:versionedparcelable:1.0.0
com.android.support:viewpager androidx.viewpager:viewpager:1.0.0
com.android.support:wear androidx.wear:wear:1.0.0
com.android.support:webkit androidx.webkit:webkit:1.0.0

 

Android support库迁移AndroidX

Android support库迁移AndroidX
原因:目前很多流行的开源库都是AndroidX项目,并不支持Android support,加入到项目会报以下错误:

Manifest merger failed : Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91
is also present at [androidx.core:core:1.0.0] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory).
Suggestion: add ‘tools:replace=”android:appComponentFactory”‘ to <application> element at AndroidManifest.xml:36:5-364:19 to override.

按照日志提示
添加tools:replace=“android:appComponentFactory”
会报其他错误,其实是AndroidX和Android support共存问题,改来改去,bug越来越多,而且AndroidX是趋势,谷歌会逐步放弃对 support 的升级和维护。

*步
将build tools更新到3.2.0,gradle更新到4.6。升级之后才会有一键转换功能

第二步
修改当前项目的 gradle.properties

android.useAndroidX=true
android.enableJetifier=true

android.useAndroidX=true 表示当前项目启用 AndroidX
android.enableJetifier=true 表示将依赖包也迁移到AndroidX 。如果取值为 false ,表示不迁移依赖包到AndroidX,但在使用依赖包中的内容时可能会出现问题,当然了,如果你的项目中没有使用任何三方依赖,那么,此项可以设置为 false
第三步

%title插图%num

之后会出现提示,勾选是否需要备份zip,建议勾选。

%title插图%num
studio会自动搜索项目需要修改的地方,只需跟修改项目名称一样,搜索完成后点击Do Refactor即可。

第四步
之后建议直接重启,直接运行的话studio的缓存会报很多异常,直接

%title插图%num
重启之后基本没有问题了,如果有问题那就是依赖库不支持AndroidX,升级成*新的即可。例如:

出现以下异常
The given artifact contains a string literal with a package reference ‘android.support.v4.content’ that cannot be safely rewritten. Libraries using reflection such as annotation processors need to be updated manually to add support for androidx.

解决办法
升级butterknife:

implementation ‘com.jakewharton:butterknife:10.1.0’
annotationProcessor ‘com.jakewharton:butterknife-compiler:10.1.0’
以及:
classpath ‘com.jakewharton:butterknife-gradle-plugin:10.1.0’

之后可能会出现以下问题:

[TAG] Failed to resolve variable ‘${junit.version}’

或者类似的Failed to resolve variable…
这种还是用老办法 :Invaldate Caches/Restart…

我这个项目刚开始比较好转移,内容多的老项目没试过,如果有其他问题,欢迎讨论