Android KTX for framework API

implementation "androidx.core:core-ktx:1.3.0"
implementation "androidx.collection:collection-ktx:1.1.0"
implementation "androidx.fragment:fragment-ktx:1.2.4"
implementation "androidx.lifecycle:lifecycle-runtime-ktx:2.2.0"
implementation "androidx.lifecycle:lifecycle-livedata-ktx:2.2.0"
implementation "androidx.navigation:navigation-runtime-ktx:2.3.0-beta01"
implementation "androidx.navigation:navigation-fragment-ktx:2.3.0-beta01"
implementation "androidx.navigation:navigation-ui-ktx:2.3.0-beta01"
implementation "androidx.palette:palette-ktx:1.0.0"
implementation "androidx.lifecycle:lifecycle-reactivestreams-ktx:2.2.0"
implementation "androidx.room:room-ktx:2.2.5"
implementation "androidx.sqlite:sqlite-ktx:2.1.0"
implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0"
implementation "androidx.work:work-runtime-ktx:2.3.4"
隆重推出 Android KTX，让 Kotlin 的开发更美妙
https://developer.android.com/kotlin/ktx