RecyclerView点击删除条目imageloader图片获取

例：

加依赖：

dependencies {    //okhttp依赖
    implementation 'com.squareup.okhttp3:okhttp:3.6.0'
    implementation 'com.squareup.okio:okio:1.11.0'
    implementation 'com.squareup.okhttp3:logging-interceptor:3.6.0'
    implementation 'com.github.bumptech.glide:glide:4.3.1'
    annotationProcessor 'com.github.bumptech.glide:compiler:4.3.1'
    implementation 'com.youth.banner:banner:1.4.10'
    //recycleview依赖
    implementation 'com.android.support:recyclerview-v7:26.1.0'
    //图片
    compile 'com.google.code.gson:gson:2.2.4'
    compile 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'
}

加权限：

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

DataBeans 类

http://www.xieast.com/api/news/news.php

public class Bean {/**
     * msg : 成功的返回
     * code : 1
     * data : [{"uniquekey":"1326bf3c4505783d4a964f81b6220e9d","title":"美国被特朗普坑惨了！又有3个铁杆盟友公开唱对台戏！","date":"2018-05-12 07:25","category":"头条","author_name":"大国军情","url":"http://mini.eastday.com/mobile/180512072544020.html","thumbnail_pic_s":"http://04.imgmini.eastday.com/mobile/20180512/20180512_fe1bf1b6ec00098f9455c84dc81e6763_cover_mwpm_03200403.jpg","thumbnail_pic_s02":"http://04.imgmini.eastday.com/mobile/20180512/20180512_3f636fca330f2311583896aed3185196_cover_mwpm_03200403.jpg","thumbnail_pic_s03":"http://04.imgmini.eastday.com/mobile/20180512/20180512_793fab03dadcd417bf2d8e5e1e48a0f5_cover_mwpm_03200403.jpg"},{"uniquekey":"9db153b507c10bbbed1d26c29c030eef","title":"第71届戛纳电影节：贾樟柯电影《江湖儿女》首映","date":"2018-05-12 07:25","category":"头条","author_name":"新华网","url":"http://mini.eastday.com/mobile/180512072505095.html","thumbnail_pic_s":"http://01.imgmini.eastday.com/mobile/20180512/20180512072505_0fe08f494e7c090764244e3581b3e5ca_5_mwpm_03200403.jpg","thumbnail_pic_s02":"http://01.imgmini.eastday.com/mobile/20180512/20180512072505_0fe08f494e7c090764244e3581b3e5ca_1_mwpm_03200403.jpg","thumbnail_pic_s03":"http://01.imgmini.eastday.com/mobile/20180512/20180512072505_0fe08f494e7c090764244e3581b3e5ca_3_mwpm_03200403.jpg"},{"uniquekey":"4f47eb31b188cfa90881260bb2b11aa8","title":"以色列发射60枚火箭弹对伊朗进行报复，中东小霸王称号保不住了","date":"2018-05-12 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06:49","category":"头条","author_name":"解放网","url":"http://mini.eastday.com/mobile/180512064903130.html","thumbnail_pic_s":"http://05.imgmini.eastday.com/mobile/20180512/20180512064903_6a2e203b71d2710aded08d300ab29eeb_1_mwpm_03200403.jpg"},{"uniquekey":"e1b21b938c2fc3a7345ca5bd93ab3d8e","title":"被吐槽演技差的宋茜这回动真格的，吴亦凡黄子韬们也跟上节奏了！","date":"2018-05-12 06:46","category":"头条","author_name":"网易越娱乐","url":"http://mini.eastday.com/mobile/180512064621690.html","thumbnail_pic_s":"http://04.imgmini.eastday.com/mobile/20180512/20180512064621_bab229c7b39e6fa7e59dd27703ddfb38_2_mwpm_03200403.jpg","thumbnail_pic_s02":"http://04.imgmini.eastday.com/mobile/20180512/20180512064621_bab229c7b39e6fa7e59dd27703ddfb38_3_mwpm_03200403.jpg","thumbnail_pic_s03":"http://04.imgmini.eastday.com/mobile/20180512/20180512064621_bab229c7b39e6fa7e59dd27703ddfb38_1_mwpm_03200403.jpg"},{"uniquekey":"526a4c110dedc726aa4e53afbcbea23d","title":"美国重新制裁伊朗 德国经济界担忧遭连累","date":"2018-05-12 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     */
    private String msg;private int code;private List<DataBean> data;public String getMsg() {return msg;}public void setMsg(String msg) {this.msg = msg;}public int getCode() {return code;}public void setCode(int code) {this.code = code;}public List<DataBean> getData() {return data;}public void setData(List<DataBean> data) {this.data = data;}public static class DataBean {/**
         * uniquekey : 1326bf3c4505783d4a964f81b6220e9d
         * title : 美国被特朗普坑惨了！又有3个铁杆盟友公开唱对台戏！
         * date : 2018-05-12 07:25
         * category : 头条
         * author_name : 大国军情
         * url : http://mini.eastday.com/mobile/180512072544020.html
         * thumbnail_pic_s : http://04.imgmini.eastday.com/mobile/20180512/20180512_fe1bf1b6ec00098f9455c84dc81e6763_cover_mwpm_03200403.jpg
         * thumbnail_pic_s02 : http://04.imgmini.eastday.com/mobile/20180512/20180512_3f636fca330f2311583896aed3185196_cover_mwpm_03200403.jpg
         * thumbnail_pic_s03 : http://04.imgmini.eastday.com/mobile/20180512/20180512_793fab03dadcd417bf2d8e5e1e48a0f5_cover_mwpm_03200403.jpg
         */
        private String uniquekey;private String title;private String date;private String category;private String author_name;private String url;private String thumbnail_pic_s;private String thumbnail_pic_s02;private String thumbnail_pic_s03;public String getUniquekey() {return uniquekey;}public void setUniquekey(String uniquekey) {this.uniquekey = uniquekey;}public String getTitle() {return title;}public void setTitle(String title) {this.title = title;}public String getDate() {return date;}public void setDate(String date) {this.date = date;}public String getCategory() {return category;}public void setCategory(String category) {this.category = category;}public String getAuthor_name() {return author_name;}public void setAuthor_name(String author_name) {this.author_name = author_name;}public String getUrl() {return url;}public void setUrl(String url) {this.url = url;}public String getThumbnail_pic_s() {return thumbnail_pic_s;}public void setThumbnail_pic_s(String thumbnail_pic_s) {this.thumbnail_pic_s = thumbnail_pic_s;}public String getThumbnail_pic_s02() {return thumbnail_pic_s02;}public void setThumbnail_pic_s02(String thumbnail_pic_s02) {this.thumbnail_pic_s02 = thumbnail_pic_s02;}public String getThumbnail_pic_s03() {return thumbnail_pic_s03;}public void setThumbnail_pic_s03(String thumbnail_pic_s03) {this.thumbnail_pic_s03 = thumbnail_pic_s03;}}
}

主方法类：

public class MainActivity extends AppCompatActivity  {private static final int SUCCESS = 492;private RecyclerView mRlv;List<Bean.DataBean> datas = new ArrayList<>();String path = "http://www.xieast.com/api/news/news.php";Handler handler = new Handler() {@Override
        public void handleMessage(Message msg) {super.handleMessage(msg);switch (msg.what) {case SUCCESS:String tvv = (String) msg.obj;Gson gson = new Gson();Bean bean = gson.fromJson(tvv, Bean.class);List<Bean.DataBean> data = bean.getData();datas.addAll(data);}}};private recyclerviewAdapter adapter;private ImageButton mBtn01;@Override
    protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initView();getOk();setadapter();}private void setadapter() {mRlv.setLayoutManager(new LinearLayoutManager(this, OrientationHelper.VERTICAL, false));adapter = new recyclerviewAdapter(this, datas);mRlv.setAdapter(adapter);adapter.SetOnItemClickListener(new recyclerviewAdapter.OnItemClickListener() {@Override
            public void onItemClick(int position) {adapter.swipe(position);}});}private void getOk() {new Thread() {@Override
            public void run() {super.run();//请求网络得到相应对象
                OkHttpClient client = new OkHttpClient.Builder().build();Request request = new Request.Builder().url(path).build();try {Response response = client.newCall(request).execute();//得到数据并转型
                    String s = response.body().string();//更新UI不能在子线程中,使用Handler
                    Message message = handler.obtainMessage();message.obj = s;message.what = SUCCESS;handler.sendMessage(message);} catch (IOException e) {e.printStackTrace();}}}.start();return;}private void initView() {mRlv = (RecyclerView) findViewById(R.id.rlv);}
}

activity_main 布局：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"><android.support.v7.widget.RecyclerView
        android:id="@+id/rlv"
        android:layout_width="550dp"
        android:layout_height="wrap_content"></android.support.v7.widget.RecyclerView>
</RelativeLayout>

recyclerviewAdapter 适配器类：

public class recyclerviewAdapter extends RecyclerView.Adapter implements  MoveSwipeListener {private Context context;private List<Bean.DataBean> datas;private OnItemClickListener onItemClickListener;public recyclerviewAdapter(Context context, List<Bean.DataBean> datas) {this.context = context;this.datas = datas;}@Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {View view = LinearLayout.inflate(context, R.layout.item, null);MyViewHolder vh = new MyViewHolder(view);return vh;}@Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {MyViewHolder vh= (MyViewHolder) holder;vh.tv.setText(datas.get(position).getTitle());ImageLoader.getInstance().displayImage(datas.get(position).getThumbnail_pic_s(),vh.iv, ImageloaderUtil.getImageOptions());vh.itemView.setOnClickListener(new View.OnClickListener() {@Override
            public void onClick(View v) {if (onItemClickListener!=null){onItemClickListener.onItemClick(position);}}});}@Override
    public int getItemCount() {return datas.size();}private class MyViewHolder extends  RecyclerView.ViewHolder {private final ImageView iv;private final TextView tv;public MyViewHolder(View itemView) {super(itemView);iv = itemView.findViewById(R.id.iv);tv = itemView.findViewById(R.id.tv);}}public   interface OnItemClickListener {void onItemClick(int position);}public void SetOnItemClickListener(OnItemClickListener onItemClickListener){this.onItemClickListener=onItemClickListener;}@Override
    public void onMove(int oldPosition, int newPosition) {}@Override
    public void swipe(int position) {//移除数据
        datas.remove(position);//单条目刷新
        this.notifyItemRemoved(position);}
}

R.layout.item 适配器布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:orientation="horizontal"
    android:layout_height="80dp"><ImageView
        android:id="@+id/iv"
        android:layout_height="match_parent"
        android:layout_width="0dp"
        android:layout_weight="2"
        app:srcCompat="@mipmap/ic_launcher_round" /><TextView
        android:id="@+id/tv"
        android:layout_height="match_parent"
        android:layout_width="0dp"
        android:layout_weight="8"
        android:text="adsdfgkjdfsds" />
</LinearLayout>

MoveSwipeListener 接口：

public interface MoveSwipeListener {public void onMove(int oldPosition, int newPosition);public void swipe(int position);
}

ItemTouchCallBack 类：

public class ItemTouchCallBack extends ItemTouchHelper.Callback {private recyclerviewAdapter myAdapter;public ItemTouchCallBack(recyclerviewAdapter myAdapter) {this.myAdapter = myAdapter;}/**
     * 获取移动的标记  移动和删除
     * @param recyclerView
     * @param viewHolder
     * @return
     */
    @Override
    public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {//设置移动的标记
        int dragFlag=ItemTouchHelper.UP|ItemTouchHelper.DOWN|ItemTouchHelper.LEFT|ItemTouchHelper.RIGHT;//设置删除的标记
        int swipFlag=ItemTouchHelper.LEFT|ItemTouchHelper.RIGHT;//制作两种标记
        int i = ItemTouchHelper.Callback.makeMovementFlags(dragFlag, swipFlag);return i;}/**
     * @param recyclerView
     * @param viewHolder   原先的viewHolder
     * @param target       拖动后的viewHolder
     * @return
     */
    @Override
    public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {//切换位置
        int oldPosition = viewHolder.getAdapterPosition();int newPosition = target.getAdapterPosition();//交换位置--
        myAdapter.onMove(oldPosition,newPosition);return true;}/**
     * 左右移动
     * @param viewHolder
     * @param direction
     */
    @Override
    public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {int adapterPosition = viewHolder.getAdapterPosition();myAdapter.swipe(adapterPosition);}
}

ImageloaderUtil 图片加载类：

public class ImageloaderUtil {/**
     * ImageLoader的配置
     * @param context
     */
    public static void initConfig(Context context) {//配置
//        File cacheFile=context.getExternalCacheDir();
        File cacheFile= new File(Environment.getExternalStorageDirectory()+"/"+"imgages");ImageLoaderConfiguration config=new ImageLoaderConfiguration.Builder(context).memoryCacheExtraOptions(480, 800)//缓存图片最大的长和宽
                .threadPoolSize(2)//线程池的数量
                .threadPriority(4).memoryCacheSize(2*1024*1024)//设置内存缓存区大小
                .diskCacheSize(20*1024*1024)//设置sd卡缓存区大小
//                .diskCache(new UnlimitedDiscCache(cacheFile))//自定义缓存目录
                .writeDebugLogs()//打印日志内容
                .diskCacheFileNameGenerator(new Md5FileNameGenerator())//给缓存的文件名进行md5加密处理
                .build();ImageLoader.getInstance().init(config);}/**
     * 获取图片设置类
     * @return
     */
    public static DisplayImageOptions getImageOptions(){DisplayImageOptions optionsoptions=new DisplayImageOptions.Builder().cacheInMemory(true)//使用内存缓存
                .cacheOnDisk(true)//使用磁盘缓存
                .bitmapConfig(Bitmap.Config.RGB_565)//设置图片格式
                //  .displayer(new RoundedBitmapDisplayer(5))//是否设置为圆角，弧度为多少
                .build();return optionsoptions;}
}

MyApp 类：（记得在清单文件中添加name）

public class MyApp  extends Application {@Override
    public void onCreate() {super.onCreate();ImageloaderUtil.initConfig(this);}
}

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