新增許可權

<uses-permission android:name="android.permission.INTERNET"/>

//引入glide
compile 'com.github.bumptech.glide:glide:3.7.0'
//引入picasso
compile 'com.squareup.picasso:picasso:2.5.2'

listViewAdapter

package com.zdsoft.glide0112;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;

import com.bumptech.glide.Glide;

import java.net.URL;
import java.util.List;

/**
 * ListView載入圖片Adapter
 * Created by Administrator on 2017/1/12.
 */
public class ListAdapter extends BaseAdapter {
    private List<URL> list;
    private Context context;

    public ListAdapter(Context context,List<URL> list){
        this.context=context;
        this.list=list;
    }
    @Override
    public int getCount() {
        return list.size();
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder=null;
        if (convertView==null){
            holder=new ViewHolder();
            convertView=LayoutInflater.from(context).inflate(R.layout.list_item,null);
            holder.iv_list= (ImageView) convertView.findViewById(R.id.iv_list);
            convertView.setTag(holder);

        }else {
            holder= (ViewHolder) convertView.getTag();
        }
        String url= String.valueOf(list.get(position));
        Glide.with(context)
                .load(url)
                .centerCrop()
                .placeholder(R.drawable.a1)
                .into(holder.iv_list);
        return convertView;
    }
    private class ViewHolder{
        ImageView iv_list;
    }
}
 

activity

package com.zdsoft.glide0112;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ImageView;
import android.widget.ListView;

import com.bumptech.glide.Glide;
import com.squareup.picasso.Picasso;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {
    private ImageView iv_show;
    private ListView lv_show;
    private List<URL> list;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initView();
        initDate();

        //Glide載入網路圖片
        Glide.with(this)
                .load("http://images.quanjing.com/mhrf005/high/mhrf-dspd54195f2.jpg")
                .placeholder(R.drawable.a1)//載入過程中圖片展示
                .error(R.drawable.a2)//載入失敗圖片展示
                .centerCrop()//影象位於檢視的中央
                .crossFade()//淡入淡出
                .skipMemoryCache(true)//true表示Glide 跳過記憶體快取，預設為false
                .dontAnimate()//取消動畫
                .into(iv_show);
        //Picasso載入網路圖片
//        Picasso.with(this)
//                .load("http://images.quanjing.com/mhrf005/high/mhrf-dspd54195f20.jpg")
//                .into(iv_show);

    }

    private void initView() {
        iv_show = (ImageView) findViewById(R.id.iv_show);
        lv_show = (ListView) findViewById(R.id.lv_show);
    }

    /**
     * ListView載入圖片
     */
    private void initDate() {
        ListAdapter adapter = new ListAdapter(MainActivity.this, getList());
        lv_show.setAdapter(adapter);
    }

    /**
     * 資料來源
     *
     * @return
     */
    private List<URL> getList() {
        list = new ArrayList<URL>();
        try {
            URL url1 = new URL("https://imgsa.baidu.com/baike/crop%3D0%2C2%2C900%2C594%3Bc0%3D" +
                    "baike116%2C5%2C5%2C116%2C38/sign=52da68a46859252db758474409ab2f09" +
                    "/d62a6059252dd42aa3178b150b3b5bb5c9eab876.jpg");
            URL url2 = new URL("https://imgsa.baidu.com/baike/c0%3Dbaike92%2C5%2C5%2C92%2C30" +
                    "/sign=9de722ea4934970a537e187df4a3baad/29381f30e924b8999c3593fd66061" +
                    "d950b7bf6ee.jpg");
            URL url3 = new URL("http://images.quanjing.com/mhrf005/high/mhrf-dspd54195f20.jpg");
            list.add(url1);
            list.add(url2);
            list.add(url3);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
        return list;
    }
}