摘要：If your unit test has no dependencies or only has simple dependencies on Android, you should run your test on a local development machine. This testin 阅读全文

摘要：Android tests are based on JUnit, and you can run them either as local unit tests on the JVM or as instrumented tests on an Android device. This page 阅读全文

摘要：The IntentService class provides a straightforward structure for running an operation on a single background thread. This allows it to handle long run 阅读全文

摘要：The navigation drawer is a panel that displays the app’s main navigation options on the left edge of the screen. It is hidden most of the time, but is 阅读全文

摘要：To create complex lists and cards with material design styles in your apps, you can use the RecyclerView and CardView widgets. //想要创建复杂的带有material des 阅读全文