viewPager适配器

package androidpermission.com.bw.test.day0630;import java.util.List;import android.content.Context;import android.support.v4.view.PagerAdapter;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import com.bumptech.glide.Glide;public class ViewPagerAdapter extends PagerAdapter{   List<News.LayoutsBean> list;   Context context;   public ViewPagerAdapter(List<News.LayoutsBean> list,Context context) {      this.list=list;      this.context=context;   }   //返回要显示的页面个数   @Override   public int getCount() {      // TODO Auto-generated method stub      return list.size();   }   //如果当前位置的view跟instantiateItem(ViewGroup, int)返回的object的key相同 就返回true   @Override   public boolean isViewFromObject(View view, Object object) {      // TODO Auto-generated method stub      return view == object;   }   //1.返回当前指定位置的页面或者视图 2.把当前位置的视图添加到容器container中   @Override   public Object instantiateItem(ViewGroup container, int position) {      ImageView iv=new ImageView(context);      iv.setScaleType(ImageView.ScaleType.FIT_XY);      Glide.with(context).load(list.get(position).getPicUrl()).into(iv);      container.addView(iv);      return iv;   }   //把当前位置页面显示的视图从容器里面移除   @Override   public void destroyItem(ViewGroup container, int position, Object object) {      container.removeView((View) object);      //super.destroyItem(container, position, object);   }}