GLide框架

implementation ‘com.github.bumptech.glide:glide:4.6.1’

代码

/**

• 1.加载网络图片，加载SD卡图片，加载本地资源文件

• 2.加载GIF动图

• 3.加载视频，形成一帧的图片

• 4.加载圆形头像

• 5.加载圆角头像

• 6.默认显示图片，错误图片

• **/
  public class GlideActivity extends AppCompatActivity {
  ImageView imageView;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_glide);
  imageView=findViewById(R.id.iv);
  //加载网络图片
  Glide.with(this)
  .load(“https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1562587162663&di=58b961a5726901f5d3b97f8924ddc189&imgtype=0&src=http%3A%2F%2Fb-ssl.duitang.com%2Fuploads%2Fitem%2F201811%2F10%2F20181110102045_jwqny.jpg”)
  .into(imageView);
  //加载SD卡
  Glide.with(this)
  .load("/sdcard/xiaoyueyue.jpg")
  .into(imageView);
  //加载本地资源
  Glide.with(this)
  .load(R.mipmap.ic_launcher)
  .into(imageView);
  RequestOptions error = new RequestOptions().error(R.mipmap.error);
  //加载动图
  Glide.with(this)
  .asGif()//判断该网址是不是gif动图,如果是动图就显示 ，如果不是就不现实，显示错误
  .load(“https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1562587162663&di=58b961a5726901f5d3b97f8924ddc189&imgtype=0&src=http%3A%2F%2Fb-ssl.duitang.com%2Fuploads%2Fitem%2F201811%2F10%2F20181110102045_jwqny.jpg”)
  .apply(error)
  .into(imageView);
  //加载视频
  Glide.with(this)
  .load(“http://uvideo.spriteapp.cn/video/2019/0512/56488d0a-7465-11e9-b91b-1866daeb0df1_wpd.mp4”)
  .into(imageView);
  //加载圆形头像
  Glide.with(this)
  .load(“https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1562587162663&di=58b961a5726901f5d3b97f8924ddc189&imgtype=0&src=http%3A%2F%2Fb-ssl.duitang.com%2Fuploads%2Fitem%2F201811%2F10%2F20181110102045_jwqny.jpg”)
  .apply(RequestOptions.bitmapTransform(new CircleCrop()))
  .into(imageView);

   //加载圆角
   Glide.with(this)
           .load("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1562587162663&di=58b961a5726901f5d3b97f8924ddc189&imgtype=0&src=http%3A%2F%2Fb-ssl.duitang.com%2Fuploads%2Fitem%2F201811%2F10%2F20181110102045_jwqny.jpg")
           .apply(RequestOptions.bitmapTransform(new RoundedCorners(100)))
           .into(imageView);
  
   //6.默认显示图片，错误图片
   RequestOptions options = new RequestOptions()
           .error(R.mipmap.error)//加载错误图片
           .placeholder(R.mipmap.ic_launcher);//默认图片
   Glide.with(this)
           .load("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1562587162663&di=58b961a5726901f5d3b97f8924ddc189&imgtype=0&src=http%3A%2F%2Fb-ssl.duitang.com%2Fuploads%2Fitem%2F201811%2F10%2F20181110102045_jwqny.jpg")
           .apply(options)
           .into(imageView);
  

  }
  }

package com.example.lianxi;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;

import com.bumptech.glide.Glide;
import com.google.gson.Gson;
import com.lzy.okgo.OkGo;
import com.lzy.okgo.callback.StringCallback;
import com.lzy.okgo.model.Response;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {
    ArrayList lists = new ArrayList<>();
    Button button;
ListView listView;
    MyAdapter myAdapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        listView=findViewById(R.id.list);
        myAdapter = new MyAdapter(lists, MainActivity.this);
        listView.setAdapter(myAdapter);
        OkGo.get("http://www.qubaobei.com/ios/cf/dish_list.php?stage_id=1&limit=20&page=1").execute(new StringCallback() {
            @Override
            public void onSuccess(Response response) {
                String body = response.body();
                FoodBean foodBean = new Gson().fromJson(body, FoodBean.class);
                List data = foodBean.getData();
                lists.addAll(data);
                myAdapter.notifyDataSetChanged();
            }
        });
//清除缓存 
        button=findViewById(R.id.bt);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                Glide.get(MainActivity.this).clearMemory();
             new Thread(new Runnable() {
                 @Override
                 public void run() {
                 //在子线程中运行
                     Glide.get(MainActivity.this).clearDiskCache() ;
                 }
             }).start();
                Toast.makeText(MainActivity.this, "清除完成", Toast.LENGTH_SHORT).show();

            }
        });
    }
}