BroadcastReceiver未收到下载完成操作

Question

我正在尝试捕获下载完成事件，但是我的BroadcastReceiver没有收到它们。这是接收者：

public class DownloadListenerService extends BroadcastReceiver {        
    @Override
    public void onReceive(final Context context, Intent intent) {
        System.out.println("got here");
        SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(context);
        SharedPreferences.Editor editor = settings.edit();

        String action = intent.getAction();
        if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
            String downloadPath = intent.getStringExtra(DownloadManager.COLUMN_URI);
            editor.putString("downloadPath", downloadPath);
            editor.commit();
        }
    }
}

这是清单：

<application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >

    <receiver 
        android:name="com.example.alreadydownloaded.DownloadListenerService" 
        android:exported="true">
        <intent-filter>
            <action android:enabled="true" android:name="android.intent.action.DOWNLOAD_COMPLETE" />
        </intent-filter>
    </receiver>
 </application>

有人知道怎么了吗？

Answer 1

• 为您的接收者使用完整的软件包名称，例如 com.example.DownloadListenerService
• Add android:exported="true" BroadcastReceiver可以outside从其应用程序的来源接收消息。
• 更改的名称Action在intent-filter以android.intent.action.DOWNLOAD_COMPLETE

      <receiver 
      android:name="com.example.DownloadListenerService"
      android:exported="true" >
      <intent-filter>
          <action android:name="android.intent.action.DOWNLOAD_COMPLETE" />
      </intent-filter>
  </receiver>
  <uses-permission android:name="android.permission.INTERNET" />
  

仅当从您的应用程序使用进行注册时，才会触发接收器 registerReceiver(@Nullable BroadcastReceiver receiver,IntentFilter filter);

要排队的代码下载：

DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
DownloadManager.Request request = new DownloadManager.Request(Uri.parse("https://www.google.com/images/srpr/logo4w.png"));
dm.enqueue(request);