小编Ngu*_*Anh的帖子

我想了解更多有关ViewPager行为的信息.我有一个FragmenPagerAdapter:

public class DatePagerAdapter extends FragmentPagerAdapter {

        public DatePagerAdapter(FragmentManager fm) {
            super(fm);
        }


        @Override
        public Fragment getItem(int position) {
            Calendar calendar = Calendar.getInstance();
            calendar.set(Calendar.DAY_OF_MONTH, 1);
            int offset = position - 100;
            calendar.add(Calendar.MONTH, offset);
//            Toast.makeText(TestActivity.this,(calendar.get(Calendar.MONTH)+1)
            Log.v("CALENDAR", "" + position);
            TestFragmentDate date = TestFragmentDate.newInstance(TestActivity.this, calendar);
            return date;
        }

        @Override
        public int getCount() {
            return 200;
        }

        @Override
        public Object instantiateItem(ViewGroup container, int position) {
            return super.instantiateItem(container, position);
        }
    }

和我的活动中的代码:

adapter = new DatePagerAdapter(getSupportFragmentManager());
        MinFragmentPagerAdapter wrapperMin = new MinFragmentPagerAdapter(getSupportFragmentManager());
        wrapperMin.setAdapter(adapter);
        PagerAdapter …