MainActivity.java

import hellosharedui.droid.UIHelpers; 

try {
    UIHelpers helpers = new UIHelpers();
    Fragment frag = helpers.getMyPageFragment(MainActivity.this);
    FragmentManager manager = getSupportFragmentManager();
    manager.beginTransaction().replace(R.id.fragment, frag, "main").commit();
}
catch(Throwable ex) {
    Log.d("MainActivity", "Unable to replace fragment");
}