LocalBroadcastManager sendet Daten mehr als einmal

Question

Ich habe ein Fragment, wo, wenn ein Benutzer einen Link eingibt und die Taste drückt, wird ein Dienst initiiert, der den Link verarbeitet und das Bild oder Videos packt, wenn es auf der URL ...

Aber mein Problem ist, dass das gleiche mehr als einmal wie 2 bis 3 mal heruntergeladen .. hier das Fragment -

public class FragmentTwo extends Fragment { 

FloatingActionButton btn; 
EditText et1; 
String profilname; 
ProgressDialog pd; 
private ArrayList<Long> mDownloadIds = new ArrayList<>(); 



    public FragmentTwo() { 
     // Required empty public constructor 
    } 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
    } 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 

     // Inflate the layout for this fragment 
     View rootView = inflater.inflate(R.layout.fragment_two,container, false); 

getActivity().registerReceiver(onComplete, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE)); 
     LocalBroadcastManager.getInstance(getActivity()) 
      .registerReceiver(myReceiver, new IntentFilter(Constants.BROADCAST_ACTION)); 


FloatingActionButton btn = (FloatingActionButton) rootView.findViewById(R.id.button1); 
    EditText et1 = (EditText) rootView.findViewById(R.id.editText1); 


pd = new ProgressDialog(getActivity()); 
     pd.setMessage("Let us Check"); 
     pd.setIndeterminate(true); 
     pd.setCancelable(false); 
     pd.setCanceledOnTouchOutside(false); 

btn.setOnClickListener(new OnClickListener() {    
@Override    
public void onClick(View v) { 
EditText et1 = (EditText) 

getView().findViewById(R.id.editText1); 
profilname = et1.getText().toString(); 

((InputMethodManager) getActivity().getSystemService("input_method"))     .hideSoftInputFromWindow(et1.getWindowToken(), 0);     

profilname.replace("https://www.instagram.com/","https://instagram.com/"); 

if (profilname.trim().equals("")){ 
Toast.makeText(getActivity(), "Link is Blank!", 0) 

.show(); 
} 

else if(isNetworkAvailable()){ 

Toast.makeText(getActivity(), profilname, 0) 
.show(); 
    DownloaderService.startActionFoo(getActivity(), profilname); 
pd.show(); 
} 

else{ 
Toast.makeText(getActivity(), "Network Error", 0) 
.show(); 
} 
}  
    }); 



return rootView; 
    } 

    private boolean isNetworkAvailable() { 
    ConnectivityManager connectivityManager = (ConnectivityManager) getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 
    NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo(); 
    return activeNetworkInfo != null && activeNetworkInfo.isConnected(); 
    } 


    private BroadcastReceiver myReceiver = new BroadcastReceiver() { 
     @Override 
     public void onReceive(Context context, Intent intent) { 
      ContentValues contentValues = intent.getParcelableExtra(Constants.MEDIA_INFO); 
      String mediaUrl = contentValues.getAsString(Constants.MEDIA_URL); 
      String mediaName = contentValues.getAsString(Constants.MEDIA_NAME); 
      pd.dismiss(); 
      download(mediaUrl, mediaName); 

      EditText et1 = (EditText) 

getView().findViewById(R.id.editText1); 
et1.setText(""); 
     } 
    }; 

    private BroadcastReceiver onComplete = new BroadcastReceiver() { 
     @Override 
     public void onReceive(Context context, Intent intent) { 
      long enqueueId = intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1); 
      if (mDownloadIds.contains(enqueueId)) { 
       /* if (mBtnDownload.getVisibility() == View.VISIBLE) { 
        mBtnDownload.setVisibility(View.GONE); 
       }*/ 
       getActivity().getLoaderManager().getLoader(0); 
      } 
     } 
    }; 


    public void onDestroy() { 
     LocalBroadcastManager.getInstance(getActivity()).unregisterReceiver(myReceiver); 
     getActivity().unregisterReceiver(onComplete); 
     super.onDestroy(); 
    } 

    private void download(String url, String fileName) { 

     File root = Environment.getExternalStorageDirectory(); 
     File myDir = new File(root + "/MCD/"); 
     myDir.mkdirs(); 

      DownloadManager mDownloadManager = (DownloadManager) getActivity().getSystemService(getActivity().DOWNLOAD_SERVICE); 
     if (!doesRequestExist(mDownloadManager, url)) { 
      /* boolean allowedOverMetered = mSettings.getBoolean(PREF_KEY_NETWORK, true);*/ 
      int networkType = NETWORK_WIFI | NETWORK_MOBILE; 
     /* if (allowedOverMetered) { 
       networkType = NETWORK_WIFI | NETWORK_MOBILE; 
      }*/ 
      DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url)); 
      request.setTitle(fileName); 
      request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); 
      request.setDestinationInExternalPublicDir(root + "/MCD/", fileName); 
      request.setAllowedNetworkTypes(networkType); 

      long id = mDownloadManager.enqueue(request); 
      mDownloadIds.add(id); 
     } 
    } 

    private boolean doesRequestExist(DownloadManager downloadManager, String url) { 
     boolean result = false; 
     DownloadManager.Query query = new DownloadManager.Query(); 
     query.setFilterByStatus(DownloadManager.STATUS_SUCCESSFUL 
      | DownloadManager.STATUS_PENDING 
      | DownloadManager.STATUS_RUNNING); 
     Cursor cursor = downloadManager.query(query); 
     while (cursor.moveToNext()) { 
      int uriIndex = cursor.getColumnIndex(DownloadManager.COLUMN_URI); 
      String uri = cursor.getString(uriIndex); 
      if (uri.equals(url)) { 
       result = true; 
       break; 
      } 
     } 
     cursor.close(); 
     return result; 
    } 

    } 

hier ist der Downloader-Service -

public class DownloaderService extends IntentService { 
    private static final String ACTION_FOO = "com.parrotainment.media.downloader.action.FOO"; 

    private static final String EXTRA_URL = "com.parrotainment.media.downloader.extra.URL"; 

    public DownloaderService() { 
     super("DownloaderService"); 
    } 

    public static void startActionFoo(Context context, String url) { 
     Intent intent = new Intent(context, DownloaderService.class); 
     intent.setAction(ACTION_FOO); 
     intent.putExtra(EXTRA_URL, url); 
     context.startService(intent); 
    } 

    @Override 
    protected void onHandleIntent(Intent intent) { 
     if (intent != null) { 
      final String action = intent.getAction(); 
      if (ACTION_FOO.equals(action)) { 
       final String url = intent.getStringExtra(EXTRA_URL); 
       handleActionFoo(url); 
      } 
     } 
    } 

    private void handleActionFoo(String urlStr) { 
     try { 
      ContentValues mediaInfo = new ContentValues(); 
      Document doc = Jsoup.connect(urlStr).timeout(5000).get(); 
      Document content = Jsoup.parse(doc.toString()); 
      String videoUrl = content.getElementsByAttributeValue("property","og:video") 
        .attr("content"); 
      String title = content.getElementsByAttributeValue("property","og:title") 
        .attr("content").replaceAll("[^a-zA-Z0-9\\u4E00-\\u9FA5\\s]",""); 

      if (!videoUrl.isEmpty()) { 
       String videoName = title + ".mp4"; 
       mediaInfo.put(Constants.MEDIA_NAME, videoName); 
       mediaInfo.put(Constants.MEDIA_URL, videoUrl); 
      } else { 
       String imgUrl = content.getElementsByAttributeValue("property","og:image").attr("content"); 
       String imgName = title + ".jpg"; 
       mediaInfo.put(Constants.MEDIA_NAME, imgName); 
       mediaInfo.put(Constants.MEDIA_URL, imgUrl); 
      } 
      Intent intent = new Intent(Constants.BROADCAST_ACTION); 
      intent.putExtra(Constants.MEDIA_INFO, mediaInfo); 
      LocalBroadcastManager.getInstance(this).sendBroadcast(intent); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 
    } 
} 

& die Konstanten -

public final class Constants { 
    public static final String BROADCAST_ACTION = "com.parrotainment.media.downloader.BROADCAST"; 
    public static final String MEDIA_INFO = "com.parrotainment.media.downloader.MEDIA_INFO"; 
    public static final String MEDIA_NAME = "com.parrotainment.media.downloader.MEDIA_NAME"; 
    public static final String MEDIA_URL = "com.parrotainment.media.downloader.MEDIA_URL"; 
} 

Answer 1

just checking Daten in Ihrem oReceive helfen können. dies wie:

if(intent.getAction() != null && intent.getAction().equals("your_constant_item")){ 

// }