全局监听 Activity 的销毁

• 关键：Application.ActivityLifecycleCallbacks
• 一个用于监听Activity生命周期的接口
• 首先

• class MyGlobalActivityMonitor : Application.ActivityLifecycleCallbacks {
    override fun onActivityCreated(activity: Activity, savedInstanceState: Bundle?) {
      Log.i(TAG, activity.*javaClass*.*simpleName *+ " - Created");
    }
   
    override fun onActivityDestroyed(activity: Activity) {
      Log.w(TAG, activity.*javaClass*.getSimpleName() + " - Destroyed");
    }
  }

• 2. 在 Application 类中使用 registerActivityLifecycleCallbacks 注册

• class MyApp : Application() {
      override fun onCreate() {
          super.onCreate()
          registerActivityLifecycleCallbacks(MyGlobalActivityMonitor())
          Log.i("MyApplication", "ActivityLifecycleCallbacks registered.");
      }
  }

• 实际应用 LeakCanary原理