抽屉布局+xlistview+上拉、下拉+imageLoad
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package com.example.a10_drawerlayout_demo.adapter;
import android.content.Context;
import android.graphics.Bitmap;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.a10_drawerlayout_demo.R;
import com.example.a10_drawerlayout_demo.bean.WeiXinBean;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
import com.nostra13.universalimageloader.core.assist.ImageScaleType;
import java.util.List;
/**
* @author Dash
* @date 2017/9/8
* @description:
*/
public class MyAdapter extends BaseAdapter {
Context context;
List<WeiXinBean.ResultBean.ListBean> list;
private int LEFT = 0;
private int RIGHT =1;
public MyAdapter(Context context, List<WeiXinBean.ResultBean.ListBean> list) {
this.context = context;
this.list = list;
ImageLoader.getInstance().init(ImageLoaderConfiguration.createDefault(context));
}
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int i) {
return list.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public int getViewTypeCount() {
return 2;
}
@Override
public int getItemViewType(int position) {
if (position%2 == 0){
return LEFT;
}
return RIGHT;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
if (getItemViewType(i) == LEFT){
LeftHolder holder;
if (view == null){
view =View.inflate(context, R.layout.item_layout_01,null);
holder = new LeftHolder();
holder.textView = view.findViewById(R.id.text_title);
holder.imageView = view.findViewById(R.id.iamge_01);
view.setTag(holder);
}else {
holder = (LeftHolder) view.getTag();
}
//赋值
holder.textView.setText(list.get(i).getTitle());
ImageLoader.getInstance().displayImage(list.get(i).getFirstImg(),holder.imageView,getOption());
}else if (getItemViewType(i) == RIGHT){
RightHolder holder;
if (view == null){
view =View.inflate(context, R.layout.item_layout_02,null);
holder = new RightHolder();
holder.textView = view.findViewById(R.id.text_title);
holder.imageView = view.findViewById(R.id.iamge_02);
view.setTag(holder);
}else {
holder = (RightHolder) view.getTag();
}
//赋值
holder.textView.setText(list.get(i).getTitle());
ImageLoader.getInstance().displayImage(list.get(i).getFirstImg(),holder.imageView,getOption());
}
return view;
}
private DisplayImageOptions getOption() {
DisplayImageOptions imageOptions = new DisplayImageOptions.Builder()
.showImageForEmptyUri(R.mipmap.ic_launcher)
.showImageOnFail(R.mipmap.ic_launcher)
.showImageOnLoading(R.mipmap.ic_launcher)
.cacheInMemory(true)
.cacheOnDisk(true)
.imageScaleType(ImageScaleType.EXACTLY_STRETCHED)
.resetViewBeforeLoading(true)//在加载之前复位一下显示
.bitmapConfig(Bitmap.Config.RGB_565)//图片的质量
.considerExifParams(true)///是否考虑JPEG图像EXIF参数(旋转,翻转)
.build();
return imageOptions;
}
private class LeftHolder{
TextView textView;
ImageView imageView;
}
private class RightHolder{
TextView textView;
ImageView imageView;
}
}
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