AndroidX将原始支持库API包映射到androidx命名空间。只有包和Maven工件名称发生了变化; 类，方法和字段名称没有改变。
使用Android Studio迁移现有项目
使用Android Studio 3.2及更高版本，您可以通过从菜单栏中选择Refactor> Migrate to AndroidX，快速迁移现有项目以使用AndroidX 。
如果您有任何尚未迁移到AndroidX名称空间的Maven依赖项，那么当您true在 gradle.properties文件中设置以下两个标志时，Android Studio构建系统也会为您迁移这些依赖项：
android.useAndroidX=true
android.enableJetifier=true
要迁移不使用任何需要转换的依赖项的第三方库的现有项目，可以将android.useAndroidX标志设置为 true，将android.enableJetifier标志设置为false。
常用依赖库对比
下表列出了从旧工件到新工件的当前映射。您也可以CSV格式下载这些映射 。
| 旧构造工件 | AndroidX构建工件 |
|---|---|
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:runner: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: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 |
