Why the method getOAuthAccessToken always fire the exception in the twitter4j api?

Question

I'm following a lot of instructions to make a simple tweet from my app. I've already registered it on Twitter, but I just can't make a tweet. I can login, but not update my status. Here's the code to login ``` private void twitterLogOn() { Twitter twitter = new TwitterFactory().getInstance(); try { twitter.setOAuthConsumer(consumerKey, consumerSecret); rToken = twitter.getOAuthRequestToken(myCallBack); startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(rToken.getAuthenticationURL()))); } catch (IllegalStateException e) { // access token is already available, or consumer key/secret is not // set. if (!twitter.getAuthorization().isEnabled()) { System.out.println("OAuth consumer key/secret is not set."); finish(); } } catch (Exception e) { Toast.makeText(Configuration.this,getString(R.string.networkError), Toast.LENGTH_SHORT).show(); } } ``` That seems to work fine, but when I go back to my app after the login, this next code should be executed, ending always in the exception Toast.…

Accepted Answer

I've gone an solved it myself, only took 4 hours!! I'm not 100% sure on the reasoning, but I know the fix works. Fix: In your manifest for this Activity you need to make it a single instance: ```

``` Now when your Activity resumes you need to catch it coming back from the browser with `onNewIntent()` like so: ``` @Override protected void onResume() { super.onResume(); dealWithTwitterResponse(getIntent()); } ``` Replaced with: ``` @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); dealWithTwitterResponse(intent); } ``` And it should work! Reasoning (correct me if I'm wrong): So the problem is your `rToken` object isn't the same object it was when created... When you create your Twitter instance and get the `rToken` object this is in your activity. The activity then goes into the background (onPause) whilst the browser comes up for the user to login. When the activity is recreated the rToken object is different therefore this is why the `getOAuthAccessToken()` method throws the error. Extra Credit: I've just written a Tutorial to match: How to send Tweets on Android from a Users Acc

Why the method getOAuthAccessToken always fire the exception in the twitter4j api?

Solution

Problem