Android "adb shell am monitor" 命令獲取當前App的包名，持續監控
C:\Users\zz>adb shell am monitor
Monitoring activity manager... available commands:
(q)uit: finish monitoring
** Activity starting: com.google.android.apps.tachyon
** Activity starting: com.google.android.apps.tachyon
** Activity resuming: com.google.android.apps.tachyon
** Activity starting: com.google.android.apps.tachyon
** Activity resuming: com.google.android.apps.tachyon
** Activity starting: com.google.android.permissioncontroller
** Activity resuming: com.google.android.apps.tachyon
adb shell am monitor 可以持續監控App的包名，當切換應用時，如果包名有變化，就會立即在終端輸出，蠻好用的！