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POIntent inside AsyncTask (Not accessible in scope)
 

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    <p>First of all, I want to apologize for my BAD English.</p> <p>I'm using a AsyncTask class, called from Main_Activity, and when in PostExecute I call de intent, I get an error "Not Enclosing Instance type is accesible in scope"</p> <pre><code>package com.example.pfc; import android.os.Bundle; import android.app.Activity;`enter code here` import android.content.Intent; import android.view.Menu; import android.view.View; import android.widget.Button; import android.widget.TextView; public class Principal extends Activity { private Button BotonSalir; private Button BotonAtras; private Button BotonClientes; private Button BotonMaquinas; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_principal); BotonSalir = (Button) findViewById(R.id.BotonSalir); BotonAtras = (Button) findViewById(R.id.BotonAtras); BotonClientes = (Button) findViewById(R.id.BotonClientes); BotonMaquinas = (Button) findViewById(R.id.BotonMaquinas); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_principal, menu); return true; } public void Atras(View view){ finish(); } public void ListaClientes(View view){ SendClientes send = new SendClientes(); send.execute("clientes"); } public void ListaMaquinas(View view){ SendMaquinas send = new SendMaquinas(); send.execute("servidores"); } } </code></pre> <p>And now the asynctask "Send":</p> <pre><code>package com.example.pfc; import java.io.IOException; import java.util.List; import java.util.concurrent.TimeoutException; import org.json.JSONException; import org.json.JSONObject; import android.content.Intent; import android.os.AsyncTask; import com.rabbitmq.client.AMQP; import com.rabbitmq.client.Address; import com.rabbitmq.client.BasicProperties; import com.rabbitmq.client.Channel; import com.rabbitmq.client.Connection; import com.rabbitmq.client.ConnectionFactory; import com.rabbitmq.client.ConsumerCancelledException; import com.rabbitmq.client.QueueingConsumer; import com.rabbitmq.client.RpcClient; import com.rabbitmq.client.ShutdownSignalException; public class SendClientes extends AsyncTask &lt;String,Void,Void&gt; { private String requestQueueName = "rpc_queue"; private String replyQueueName; private QueueingConsumer consumer; protected Void doInBackground(String... p) { String mensaje = p[0]; ConnectionFactory cFactory = new ConnectionFactory(); Connection connection; //JSON Object JSONObject json = new JSONObject(); try { json.put("Request", mensaje); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } //Conexion try { Address[] addrs= new Address[1]; addrs[0] = Address.parseAddress("84.126.242.244"); connection = cFactory.newConnection(addrs); cFactory.setPort(5672); Channel channel = connection.createChannel(); replyQueueName = channel.queueDeclare().getQueue(); consumer = new QueueingConsumer(channel); channel.basicConsume(replyQueueName, true,consumer); String corrId = java.util.UUID.randomUUID().toString(); //Propiedades enviadas al servidor AMQP.BasicProperties props = new AMQP.BasicProperties() .builder() .correlationId(corrId) .replyTo(replyQueueName) .build(); channel.basicPublish("", replyQueueName, props, json.toString().getBytes()); //Esperando respuesta del servidor while (true) { QueueingConsumer.Delivery delivery = consumer.nextDelivery(); if (delivery.getProperties().getCorrelationId().equals(corrId)) { String respuesta = new String(delivery.getBody()); break; } } //Eliminamos la cola del servidor, tras haber recibido el mensaje channel.queueDelete(replyQueueName); //cerramos canal y conexion channel.close(); connection.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ShutdownSignalException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ConsumerCancelledException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } // TODO Auto-generated method stub return null; } //Capturamos la respuesta en el posexecute protected void onPostExecute(String respuesta) { //Lanzamos el intent a la actividad de usuarios, poniendo en el intent la respuesta del servidor. Intent intent = new Intent(Principal.this, Activity_Usuarios.class); //Error "No enclosing instance of the type Principal is accessible in scope" } </code></pre> <p>}</p> <p>Thanks in advance.</p> <p>Bye!</p>
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