NavUtils.navigateUpTo() does not start any Activity

Question

I have two activities

• MainActivity
• DeepLinkActivity

I set up everything to use the NavUtils for navi

Answer 1

It looks like NavUtils.shouldUpRecreateTask(this, upIntent) is not prepared for this special case.

My current workaround is checking, if the Activity was deep linked and force a new task stack for cases like this.

In my case, I pass around objects in EXTRAs internally. But an ACTION and Uri is set if the Activity is started from outside by following a link to a specific URL or by touching NFC aware devices.

@Override
public boolean onOptionsItemSelected(final MenuItem item) {
    switch (item.getItemId()) {
        case android.R.id.home:
            Intent upIntent = NavUtils.getParentActivityIntent(this);
            if (NavUtils.shouldUpRecreateTask(this, upIntent)
                    || getIntent().getAction() != null) { // deep linked: force new stack
                // create new task
                TaskStackBuilder.create(this).addNextIntentWithParentStack(upIntent)
                        .startActivities();
            } else {
                // Stay in same task
                NavUtils.navigateUpTo(this, upIntent);
            }
            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}