问题描述

I've created a method to check if my app is able to connect to my server using OkHttp.

This is my test class:

public class NetworkTest {

static boolean resultWeb = false;

public static boolean pingTestWeb() {

    OkHttpClient client = new OkHttpClient();

    Request request = new Request.Builder()
            .url("http://www.google.com")//My server address will go here
            .build();

    client.newCall(request).enqueue(new Callback() {

        @Override
        public void onFailure(Request request, IOException e) {
            resultWeb = false;
            Log.i("Error","Failed to connect: "+e.getMessage());
        }

        @Override
        public void onResponse(Response response) throws IOException {

            Log.i("Success","Success: "+response.code());
            if (response.code() == 200) {
                resulWeb = true;
            }
        }
    });

    return resultWeb;
}

And here is where I'm making the test on my activity on OnCreate():

if (NetworkTest.pingTestWeb()) {

        // Do something if true...

    } else {

        // Do something if false, like showing an AlertDialog...
    }

The question is, my pingTestWeb have the default Timeout time of 10000ms, how do I make the activity create the AlertDialog only if the pingTestWeb is false? Because it isn't waiting for the response.

I think what may be happening here is you're performing the OkHttp call asynchronously, so you're hitting the return statement before the task is complete. For the sake of the test would it be possible to do the OkHttp call synchronously? You can handle the success/failure case with response.isSuccessful seen below.

   private final OkHttpClient client = new OkHttpClient();

   public void run() throws Exception {
       Request request = new Request.Builder()
           .url("your_url_here")
           .build();

       Response response = client.newCall(request).execute();
       if(response.isSuccessful()){
           return true;             
        }else return false;

    }

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