bruce

安卓端按返回键退出应用，多次操作会导致crash

1

``` java.lang.RuntimeException: Unable to destroy activity {cn.com.gf/com.tarodemo.MainActivity}: java.lang.IllegalArgumentException: Receiver not registered: expo.modules.av.AVManager$1@615cbed 10-09 15:05:33.594 31174 31174 E AndroidRuntime: at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:4605) 10-09 15:05:33.594 31174 31174 E AndroidRuntime: at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:4623) 10-09 15:05:33.594...