我正在尝试下载文件,下载后想在数据库中更新它,但出于我的意图,服务广播接收器正在创建此问题:
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,我正在取消广播接收器的注册,但是我不明白为什么会出现此问题。
编辑
我已应用所有建议答案的新问题:如果添加广播接收器,它将给出成功响应,但不会保存文件,但是当我成功删除广播接收器文件后,下载
答案 0 :(得分:1)
问题:
您面临此问题的原因是,IntentService
在下载完成之前运行完毕,并且您的DownloadCompleteReceiver
仍在注册。
downloadId = downloadManager.enqueue(request);
不能以同步方式下载。结果,IntentService
运行完毕。
解决方案
如果必须要具有状态,则可以启动ForegroundService而不是IntentService
,然后注册接收器。在服务的onDestory()
中,取消注册接收者。
答案 1 :(得分:1)
只需通过更改广播注销功能的位置来替换代码
@Override public void onDestroy() {
downloadManager.remove(downloadId);
this.unregisterReceiver(completeReceiver);
super.onDestroy();
}