在你的安卓项目中实现 BroadcastReceiver

Implement BroadcastReceiver in your android project

[BroadcastReceiver]
public class NotificationBroadcastReceiver : BroadcastReceiver
{
  private ApprovalDataStore _approvalDataStore => DependencyService.Get<ApprovalDataStore>();

  public override async void OnReceive(Context context, Intent intent)
  {
     var pm = PowerManager.FromContext(context);
     var wakeLock = pm.NewWakeLock(WakeLockFlags.Partial, "GCM Broadcast Reciever Tag");
     wakeLock.Acquire();

     //Write your code here

     // When you are finished
     wakeLock.Release();
  }
}