setCurrentItem on viewPager not working

[JcMinarro]

When I create my view, I want that viewPager move to some pager (eg pager number 1).
ViewPager move to that pager and PSTS update the states of every tab, but doesn't move the scroll to the correct position.
I have changed your example to be like mine and it doesn't work.
The changes that I have done are the following:

MainActivity.java:

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.inject(this);
        setSupportActionBar(toolbar);
        // create our manager instance after the content view is set
        mTintManager = new SystemBarTintManager(this);
        // enable status bar tint
        mTintManager.setStatusBarTintEnabled(true);
        adapter = new MyPagerAdapter(getSupportFragmentManager());
        pager.setAdapter(adapter);
        tabs.setViewPager(pager);
        final int pageMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 4, getResources()
                .getDisplayMetrics());
        pager.setPageMargin(pageMargin);
        changeColor(getResources().getColor(R.color.green));
     pager.setCurrentItem(1);
    }

activity_main.xml:

<com.astuetz.PagerSlidingTabStrip
        android:id="@+id/tabs"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:pstsShouldExpand="true" />

[jpardogo]

Change:

     pager.setCurrentItem(1);

For:

    pager.post(new Runnable() {
            @Override
            public void run() {
                pager.setCurrentItem(1);
            }
    });

But this just work until you start rotating the device because then It get lost....

When changing the default tab, there are still problems keeping the offset values so you may notice 'snapping' or wrong position on rotation.

I will try to spend some time on it when possible. Because it has been a problem for a while and I probably didn't spend enough time looking for a proper solution.
So far, that's all you can get changing the default starting tab.

I leave the issue open and It will be the first issue to fix for next release.

[JcMinarro]

Ok, that works, but is a bit rare...
It starts on position 0 and then scroll to position x...

[jpardogo]

Yes I know. I want that fixed. If you find the solution PR are welcome. Otherwise I will try to fix it when I have a moment to study the problem in depth

[JcMinarro]

I have seen that if you don't remove the OnGlobalLayoutListener that you added on notifyDataSetChanged() method, It works fine. But I don't know if it could made other bugs.

[jpardogo]

Fix in PR #65 and example updated to demonstrate fix in commit 5672cc8

[szuwest]

Is there any way to not snapping?