title: How to reuse Fragment instace in ViewPager?
body: <p>I have a ViewPager in my app, this viewpager contains 10 same fragments with different arguments. Using <code>FragmentStatePagerAdapter</code> as the viewpager's adapter. <code>FragmentStatePagerAdapter</code> pre-make new instance when a page are selected and then destroy it. But I don't need 10 instances. 3 is enough. When user scroll to right, most left fragment can be reused, because GC are expensive. How to achieve it?</p>