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Android Build a Weather App (2015) Concurrency and Error Handling Executing an Asynchronous Call

Posted by MUZ140346 Rodrick T. Chipere
MUZ140346 Rodrick T. Chipere
6,108 Points

Continuing with our movie app, we are now ready to asynchronously execute the request we previously built. Start by crea

Continuing with our movie app, we are now ready to asynchronously execute the request we previously built. Start by creating a Call variable and set it using the newCall() method from the OkHttpClient. Hint: newCall() requires a parameter of the Request type.

MovieActivity.java 
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import java.io.IOException;

public class MovieActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_movie);

        // Get some movie information!
        String apiUrl = "http://api.rottentomatoes.com/api/public/v1.0/movies.json?apikey=xyz&q=hobbit";
        OkHttpClient client = new OkHttpClient();
        Request request = new Request.Builder()
                .url(apiUrl)
                .build();
      call.enqueue(new newCall(){
         public void onFailure(Request.request, IOException e){
         }
      });
    }

}

1 Answer

James Simshaw
James Simshaw
28,738 Points
James Simshaw
James Simshaw
28,738 Points

Hello,

Your previous code was closer. You removed the wrong part to get here. Your previous code was 

public class MovieActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_movie);

        // Get some movie information!
        String apiUrl = "http://api.rottentomatoes.com/api/public/v1.0/movies.json?apikey=xyz&q=hobbit";
        OkHttpClient client = new OkHttpClient();
        Request request = new Request.Builder()
                .url(apiUrl)
                .build();
      Call call = client.newCall(request);
      call.enqueue(new newCall(){
         public void onFailure(Request.request,IOException e){
         }
      });
    }

}

All you had to do was remove the 

      call.enqueue(new newCall(){
         public void onFailure(Request.request,IOException e){
         }
      });

lines and you should be able to pass the challenge which would leave

public class MovieActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_movie);

        // Get some movie information!
        String apiUrl = "http://api.rottentomatoes.com/api/public/v1.0/movies.json?apikey=xyz&q=hobbit";
        OkHttpClient client = new OkHttpClient();
        Request request = new Request.Builder()
                .url(apiUrl)
                .build();
      Call call = client.newCall(request);
    }

}