title: Pusher Private Channel Subscription in android
body: <p>I have issue on private channel subscription in android. 
  These is the my code</p>
  
  <pre><code>        HashMap&lt;String, String&gt; headers = new HashMap&lt;&gt;();
          headers.put("Authorization", code);
          headers.put("Content-Type", "application/x-www-form-urlencoded");
          headers.put("Accept", "application/json");
  
          final HttpAuthorizer authorizer = new HttpAuthorizer("My URL");
  
          authorizer.setHeaders(headers);
  
          PusherOptions options = new PusherOptions()
                  .setEncrypted(true)
                  .setCluster("ap2")
                  .setAuthorizer(authorizer);
  
          final Pusher pusher = new Pusher("KEY", options);
  
          pusher.connect(new ConnectionEventListener() {
              @Override
              public void onConnectionStateChange(ConnectionStateChange change) {
  
              }
  
              @Override
              public void onError(String message, String code, Exception e) { }
          }, ConnectionState.ALL);
  
          PrivateChannel channel = pusher.subscribePrivate(channelName);
          channel.bind("message-sent", new PrivateChannelEventListener() {
              @Override
              public void onAuthenticationFailure(String string, Exception ex) {}
              @Override
              public void onSubscriptionSucceeded(String string) {
              }
  
              @Override
              public void onEvent(String string, String string1, String string2) {}});
  pusher.connect();
  </code></pre>
  
  <p>This create success connection but in subscription it did return any result.
  Please help me to solve this issue.</p>