抽空看了下 I/O , 大概的记录了些东西。
整体上看，这一年，Android 只专注一件事，就是帮助开发者提高生产效率。(developer productivity)
Android development will become increasingly Kotlin-first.
“Many new Jetpack APIs and features will be offered first in Kotlin. If you’re starting a new project, you should write it in Kotlin; code written in Kotlin often mean much less code for you–less code to type, test, and maintain.”
“We understand that not everybody is on Kotlin right now, but we believe that you should get there,”
Google 走在推广 Kotlin 的路上坚定不移。