class A extends FragmentPagerAdapter{ public A(FragmentManager fm) { super(fm); } @Override public Fragment getItem(int position) { FindFragment f = new FindFragment(); return f; } @Override public int getCount() { return 100; } @Override public Object instantiateItem(ViewGroup container, int position) { FindFragment f = (FindFragment) super.instantiateItem(container, position); f.onEvent("123"); return f; } @Override public int getItemPosition(Object object) { return PagerAdapter.POSITION_NONE; } }