android-基础编程-ViewPager

<android.support.v4.view.ViewPager
        android:id="@+id/pager"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />

public class MyViewPagerAdapter extends PagerAdapter{
        private List<View> mListViews;

        public MyViewPagerAdapter(List<View> mListViews) {
            this.mListViews = mListViews;//构造方法，参数是我们的页卡，这样比较方便。
        }

        @Override
        public void destroyItem(ViewGroup container, int position, Object object)   {
            container.removeView(mListViews.get(position));//删除页卡
        }


        @Override
        public Object instantiateItem(ViewGroup container, int position) {  //这个方法用来实例化页卡
            container.addView(mListViews.get(position), 0);//添加页卡
            return mListViews.get(position);
        }

        @Override
        public int getCount() {
            return  mListViews.size();//返回页卡的数量
        }

        @Override
        public boolean isViewFromObject(View arg0, Object arg1) {
            return arg0==arg1;//官方提示这样写
        }
    }