Problems sending notification

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Problems sending notification

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#1 by (1 votes)

1

I'm using the following code to send notification from the android and not the console

public static void pushFCMNotification(String userDeviceIdKey) throws Exception
{

        URL url = new URL("https://fcm.googleapis.com/fcm/send");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();

        conn.setUseCaches(false);
        conn.setDoInput(true);
        conn.setDoOutput(true);

        conn.setRequestMethod("POST");
        conn.setRequestProperty("Authorization","key=AIzaSyCEwVIxZv_..._hHEmAO0");
        conn.setRequestProperty("Content-Type","application/json");

        JSONObject json = new JSONObject();
        json.put("to",userDeviceIdKey.trim());
        JSONObject info = new JSONObject();
        info.put("title", "Enviando msg");   // Notification title
        info.put("body", "cadastrou"); // Notification body
        json.put("notification", info);

        OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
        wr.write(json.toString());
        wr.flush();
        conn.getInputStream();

    }

No error appears in the application, simply the code runs and does not work.

W / EGL_emulation: eglSurfaceAttrib not implemented W / EGL_emulation:   eglSurfaceAttrib not implemented W / System.err:   android.os.NetworkOnMainThreadException W / System.err: at   android.os.StrictMode $ AndroidBlockGuardPolicy.onNetwork (StrictMode.java:1145)   W / System.err: at   java.net.InetAddress.lookupHostByName (InetAddress.java:385)   W / System.err: at   java.net.InetAddress.getAllByNameImpl (InetAddress.java:236)   W / System.err: at   java.net.InetAddress.getAllByName (InetAddress.java:214) W / System.err:   at com.android.okhttp.internal.Dns $ 1.getAllByName (Dns.java:28)   W / System.err: at   com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress (RouteSelector.java:216)   W / System.err: at   com.android.okhttp.internal.http.RouteSelector.next (RouteSelector.java:122)   W / System.err: at   com.android.okhttp.internal.http.HttpEngine.connect (HttpEngine.java:292)   W / System.err: at   com.android.okhttp.internal.http.HttpEngine.sendSocketRequest (HttpEngine.java:255)   W / System.err: at   com.android.okhttp.internal.http.HttpEngine.sendRequest (HttpEngine.java:206)   W / System.err: at   com.android.okhttp.internal.http.HttpURLConnectionImpl.execute (HttpURLConnectionImpl.java:345)   W / System.err: at   com.android.okhttp.internal.http.HttpURLConnectionImpl.connect (HttpURLConnectionImpl.java:89)   W / System.err: at   com.android.okhttp.internal.http.HttpURLConnectionImpl.getOutputStream (HttpURLConnectionImpl.java:197)   W / System.err: at   com.android.okhttp.internal.http.HttpsURLConnectionImpl.getOutputStream (HttpsURLConnectionImpl.java:254)   W / System.err: at   com.alpha.tec.agendaonline.Evento.EventosCad.pushFCMNotification (EventosCad.java:188)   W / System.err: at   com.alpha.tec.agendaonline.Evento.EventosCad $ 1.onClick (EventosCad.java:84)   W / System.err: at android.view.View.performClick (View.java:4438)   W / System.err: at   android.view.View $ PerformClick.run (View.java:18422) W / System.err:
  at android.os.Handler.handleCallback (Handler.java:733) W / System.err:
  at android.os.Handler.dispatchMessage (Handler.java:95) W / System.err:
  at android.os.Looper.loop (Looper.java:136) W / System.err: at   android.app.ActivityThread.main (ActivityThread.java:5045)   W / System.err: at java.lang.reflect.Method.invokeNative (Native   Method) W / System.err: at   java.lang.reflect.Method.invoke (Method.java:515) W / System.err: at   com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run (ZygoteInit.java:779)   W / System.err: at   com.android.internal.os.ZygoteInit.main (ZygoteInit.java:595)   W / System.err: at dalvik.system.NativeStart.main (Native Method)

android firebase push-notification

asked by anonymous 15.11.2016 / 16:48

1 answer

Growing Counter in a Texbox [duplicate] $ .getJSON not working as it should to get image graph API

score 1 · Answer 1

The error occurs because you are trying to open a connection in the application's main Thread ( NetworkOnMainThreadException ).

In this case you need to perform this operation on a AsyncTask

Here's an example:

  public class AsyncConnection extends AsyncTask<String, Void, Void> {
    @Override
    protected Void doInBackground(String... strings) {

        final String userDeviceIdKey = strings[0];
        URL url = null;
        try {
            url = new URL("https://fcm.googleapis.com/fcm/send");

            HttpURLConnection conn = (HttpURLConnection) url.openConnection();

            conn.setUseCaches(false);
            conn.setDoInput(true);
            conn.setDoOutput(true);

            conn.setRequestMethod("POST");
            conn.setRequestProperty("Authorization","key=AIzaSyCEwVIxZv_..._hHEmAO0");
            conn.setRequestProperty("Content-Type","application/json");

            JSONObject json = new JSONObject();
            json.put("to",userDeviceIdKey.trim());
            JSONObject info = new JSONObject();
            info.put("title", "Enviando msg");   // Notification title
            info.put("body", "cadastrou"); // Notification body
            json.put("notification", info);

            OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
            wr.write(json.toString());
            wr.flush();
            conn.getInputStream();

        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (ProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (JSONException e) {
            e.printStackTrace();
        }
     }
   }

To execute the call operation as follows:

new AsyncConnection().execute(userDeviceIdKey);