Best Practice for HTTP Request in Activity

[joey mason]

I'd like to make an HTTP POST request when a button is clicked. Initially, I made my Activity implement OnClickListener. However, while handling the click event, when I attempted to retrieve the service using BootstrapServiceProvider.getService(), an exception was thrown because the call was happening on the main UI thread. To get around this, it seems like there a few options:

- Use the event bus

- Put the button in a fragment

Has anyone come across this? What is the best strategy here?  

[Donn Felker]

Use an AsycTask

[joey mason]

That seems simple enough, but to retrieve a service from BootstrapServiceProvider, you need to provide an activity, so it seems like this could get a little messy. Or will that not be an issue?

On Wednesday, September 3, 2014 10:59:42 AM UTC-7, Donn Felker wrote:

Use an AsycTask

[joey mason]

Here's an example of what I'm doing:

public class MyActivity extends BootstrapActivity implements View.OnClickListener {
 
   @Inject protected BootstrapServiceProvider serviceProvider;
   // .........

   @Override

   public void onClick(final View v) {
      // ......
      new CreateArticleAsyncTask().doInBackground(article);
   }

   private class CreateArticleAsyncTask extends AsyncTask<Article, Void, Void> {
        @Override

        protected Void doInBackground(Redemption... params) {

            for (Article article : params) {

                try {

                    serviceProvider.getService(getParent()).createArticle(article);

                } catch (Exception e) {

                    Ln.e(e, "Unable to create article");

                }

            }

            return null;

        }

   }
}

This is the error message I'm getting:

09-03 19:06:04.297  11253-11253/com.foobar.android.debug E/AccountManager﹕ calling this from your main thread can lead to deadlock and/or ANRs

    java.lang.IllegalStateException: calling this from your main thread can lead to deadlock
......
at com.foobar.android.authenticator.ApiKeyProvider.getAuthKey(ApiKeyProvider.java:51)

            at com.foobar.android.BootstrapServiceProvider.getService(BootstrapServiceProvider.java:42)

It seems to be failing because of the reference to the parent activity, but I'm not sure how else to retrieve the Service I need to make the POST request. There must be a better way to do this.