Go back after call Intent.ACTION_VIEW in android

android android-intent twitter-oauth twitter4j
Nguyen Minh Binh picture Nguyen Minh Binh · Jul 17, 2011 · Viewed 7.6k times · Source

My app has 3 activity A, B, C. Activity A calls B. In B, I call Intent.ACTION_VIEW to do authentication with Twitter as below:

public static void DoAuthen(Context context, String CallBackUrl) throws OAuthMessageSignerException, OAuthNotAuthorizedException,
        OAuthExpectationFailedException, OAuthCommunicationException {
    httpOauthConsumer = new CommonsHttpOAuthConsumer(context.getString(R.string.Twitter_ConsumerKey), context
            .getString(R.string.Twitter_ConsumerSecret));
    httpOauthprovider = new DefaultOAuthProvider("http://twitter.com/oauth/request_token", "http://twitter.com/oauth/access_token",
            "http://twitter.com/oauth/authorize");
    String authUrl = httpOauthprovider.retrieveRequestToken(httpOauthConsumer, CallBackUrl);
    context.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(authUrl)));
}

After authentication, My App is called back at activity B. Here B calls C. Now if I press Back button, it will navigate to browser (which used to authenticate with Twitter before) rather than to B and then to A. How can I resolve this?

Answer

Gregory Kalabin picture Gregory Kalabin · Jul 17, 2011

Please refer to Tasks and Back stack in android. You can use two tasks in your application - in first one you do your business, in second - authorization. You start authorization with intent flag FLAG_ACTIVITY_NEW_TASK and use parameter android:clearTaskOnLaunch. Good luck!

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