广播接收器 IntentReceiverLeaked

Question

我正在尝试下载一个文件，下载后想在数据库中更新它，但我的意图是服务广播接收器造成了这个问题：

android.app.IntentReceiverLeaked: Service com.dev.newtermain.services.intent_service.DownloadService has leaked IntentReceiver com.dev.newtermain.services.intent_service.DownloadService$DownloadCompleteReceiver@d4fdde9 that was originally registered here. Are you missing a call to unregisterReceiver()?
    at android.app.LoadedApk$ReceiverDispatcher.<init>(LoadedApk.java:969)
    at android.app.LoadedApk.getReceiverDispatcher(LoadedApk.java:731)
    at android.app.ContextImpl.registerReceiverInternal(ContextImpl.java:1179)
    at android.app.ContextImpl.registerReceiver(ContextImpl.java:1159)
    at android.app.ContextImpl.registerReceiver(ContextImpl.java:1153)
    at android.content.ContextWrapper.registerReceiver(ContextWrapper.java:554)
    at com.dev.newtermain.services.intent_service.DownloadService.onStartCommand(DownloadService.java:70)
    at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3228)
    at android.app.ActivityThread.-wrap17(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1591)
    at android.os.Handler.dispatchMessage(Handler.java:111)
    at android.os.Looper.loop(Looper.java:207)
    at android.app.ActivityThread.main(ActivityThread.java:5769)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)

这是我的意图服务代码：

public class DownloadService extends IntentService {
 public DownloadService() {
    super("Download Service");
}

Long downloadId;
private DownloadManager downloadManager;

@Override public void onCreate() {
    super.onCreate();
    downloadManager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
    completeReceiver = new DownloadCompleteReceiver();
}

@Override public int onStartCommand(@Nullable Intent intent, int flags, int startId) {
    onHandleIntent(intent);
    this.intent = intent;
    return START_STICKY;
}

@Override
protected void onHandleIntent(Intent intent) {

    String key = intent.getStringExtra(DOWNLOAD_KEY);
    messageId = intent.getStringExtra(MESSAGE_ID);
    mReactionId = intent.getStringExtra(REACTION_ID);
    int messageType = intent.getIntExtra(MESSAGE_TYPE, 3);
    initDownload(key, messageType);
}

private void initDownload(String key, int messageType) {
    DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
    request.addRequestHeader("Authorization", SharedPref.User.getToken());

    // In order for this if to run, you must use the Android 3.2 to
    // compile your app
    request.allowScanningByMediaScanner();
    request.setAllowedOverMetered(true);
    request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
    request.setDestinationInExternalPublicDir(path, fileName);

    // Get download service and enqueue file
    downloadId = downloadManager.enqueue(request);

    Logs.e("file download", "downloading begin");
    IntentFilter intentFilter = new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE);
    this.registerReceiver(completeReceiver, intentFilter);
}

public class DownloadCompleteReceiver extends BroadcastReceiver {
    public DownloadCompleteReceiver() {
    }

    @Override public void onReceive(Context context, Intent intent) {
        Logs.e("file download", "broadcast received");
        DownloadManager.Query query = new DownloadManager.Query().setFilterById(downloadId);
        Cursor cursor = downloadManager.query(query);
        if (cursor.moveToFirst()) {
            int columnIndex = cursor.getColumnIndex(DownloadManager.COLUMN_STATUS);
            int status = cursor.getInt(columnIndex);
            cursor.close();

            switch (status) {
                case DownloadManager.STATUS_SUCCESSFUL:
                    Logs.e("file download", "download successful");
                    updateDb(fileName, messageId, Id);
                    break;
                case DownloadManager.STATUS_FAILED:
                    Logs.e("file download", "download Fail");
                    break;
                case DownloadManager.STATUS_PENDING:
                    Logs.e("file download", "STATUS_PENDING");
                    break;
                case DownloadManager.STATUS_RUNNING:
                    Logs.e("file download", "STATUS_RUNNING");
                    break;
            }
        }
    }
}

@Override public void onDestroy() {
    Logs.e("file download", "stopping service");
    this.unregisterReceiver(completeReceiver);
    downloadManager.remove(downloadId);
    super.onDestroy();
}

正如广播接收器的文档所建议的那样，我正在注销广播接收器，但我不明白为什么会出现此问题。

编辑

我应用了所有建议的答案新问题是如果我添加广播接收器它会给出成功响应但不保存文件但是当我删除广播接收器文件下载成功

Answer 1

问题：

您遇到此问题的原因是 IntentService 在下载完成之前运行完成，并且您的 DownloadCompleteReceiver 仍处于注册状态。

downloadId = downloadManager.enqueue(request); 不以同步方式下载。结果 IntentService 运行完成。

解决方法

如果您必须收到状态，您可以启动 ForegroundService 而不是 IntentService，然后注册接收器。在您的服务的 onDestory() 中，取消注册接收器。

Answer 2

只需通过更改广播取消注册功能的位置来替换您的代码

@Override public void onDestroy() {
    downloadManager.remove(downloadId);
    this.unregisterReceiver(completeReceiver);
    super.onDestroy();
}

广播接收器 IntentReceiverLeaked

Broadcast receiver IntentReceiverLeaked

android

android-broadcast

android-broadcastreceiver

android-intentservice