android - list 中 DownloadManager.ACTION_DOWNLOAD_COMPLETE 的接收器

Question

是否可以监听Manifest.xml中的DownloadManager.ACTION_DOWNLOAD_COMPLETE？

我发现的所有示例都使用 registerReceiver(downloadCompleteReceiver,new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE)); 来自 class 但我想在 Manifest.xml 中接收它这样我就可以在应用程序关闭时收听。 当我尝试在 Manifest.xml 中为接收器设置 Intent 过滤器时，我找不到此操作

Answer 1

作为official documentation状态:

Beginning with Android 8.0 (API level 26), the system imposes additional restrictions on manifest-declared receivers.

If your app targets Android 8.0 or higher, you cannot use the manifest to declare a receiver for most implicit broadcasts (broadcasts that don't target your app specifically). You can still use a context-registered receiver when the user is actively using your app.

来自Is android.intent.action.DOWNLOAD_COMPLETE an explicit broadcast?我们了解到android.intent.action.DOWNLOAD_COMPLETE似乎是显式广播，因此定义 <receiver> 应该没有问题即使它不是自动完成的，也可以在 list 中找到它。因此只需使用 android.intent.action.DOWNLOAD_COMPLETE 操作添加它即可.

<receiver 
    android:name=".your.DownloadCompleteReceiver"
    android:permission="android.permission.SEND_DOWNLOAD_COMPLETED_INTENTS"
    android:exported="true">
  <intent-filter>
     <action android:name="android.intent.action.DOWNLOAD_COMPLETE" />
  </intent-filter>
</receiver>