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  • ViewPagerAdapter 示例

    package com.ali.fridge.supermarket.module;
    /**
     * Created by xiaomin.wxm on 2016/3/7.
     */
    import android.support.v4.view.PagerAdapter;
    import android.view.View;
    import android.view.ViewGroup;
    import com.ali.fridge.home.GoodsFragment;
    import java.util.List;
    public class ViewPagerAdapter extends PagerAdapter {
        private List<View> mList;
        private List<GoodsItem> mDataList;
        public ViewPagerAdapter(List<View> list, List<GoodsItem> dataList) {
            this.mList = list;
            this.mDataList = dataList;
        }
        @Override
        public int getCount() {
            if (mList != null && mList.size() > 0) {
                return mList.size();
            } else {
                return 0;
            }
        }
        @Override
        public boolean isViewFromObject(View arg0, Object arg1) {
            return arg0 == arg1;
        }
        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {
            container.removeView((View) object);
        }
        @Override
        public Object instantiateItem(ViewGroup container, int position) {
            //container.removeView(mList.get(position));
            if (mList.get(position).getParent() != null) {
                ((ViewGroup) mList.get(position).getParent()).removeView(mList.get(position));
            }
            container.addView(mList.get(position));
            GoodsFragment.ViewHolder viewHolder = (GoodsFragment.ViewHolder) mList.get(position).getTag();
            if (mDataList.get(position).getNum() != null) {
                viewHolder.getNumView().setText((String) mDataList.get(position).getNum());
            }
            return mList.get(position);
        }
        @Override
        public int getItemPosition(Object object) {
            return POSITION_NONE;
        }
    }
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  • 原文地址:https://www.cnblogs.com/wxmdevelop/p/6378750.html
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