獲取Android當前運行最頂層的activity

Windows：

adb shell dumpsys activity activities | findstr mFocusedActivity

Linux:

adb shell dumpsys activity activities | grep mFocusedActivity

Android 7.0 現象：

Android 8.0 現象：

改用：

Windows：

 adb shell dumpsys activity activities | findstr mResumedActivity

Linux:

adb shell dumpsys activity activities | grep mResumedActivity

原文：https://www.cnblogs.com/yinzhuoqun/p/9090030.html