LocalBroadcastManagerは複数回データを送信します

Question

私は、ユーザーがリンクを入力してボタンを押すと、URLにURLがあればリンクやグラブ画像を処理するサービスが開始されます。

しかし、私の問題は、同じ一回2〜3倍のようなより多くダウンロードされていること..です ここでは、フラグメントである -

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; 
    } 

    } 

ここDownloaderのサービスです -

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(); 
     } 
    } 
} 

&定数 -

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

はちょうど助けるかもしれないあなたのoReceive内のデータをチェックします。このように：

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

// }