RecyclerView线性布局，表格布局，fresco图片获取，点击删除条目

RecyclerView线性布局，表格布局，fresco图片获取，点击删除条目

例：

RecyclerView线性布局，表格布局，

点击弹出对话框删除条目

fresco图片获取

添加依赖：

dependencies {
    implementation 'com.android.support:recyclerview-v7:26.1.0'
    compile 'com.squareup.okhttp3:okhttp:3.4.2'
    compile &#le.code.gson:gson:2.2.4'
    compile 'com.facebook.fresco:fresco:1.5.0'
}

添加权限：

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

.json

//.json
public class Bean {private List<JsonBean> json;private List<LikeBean> like;public List<JsonBean> getJson() {return json;}public void setJson(List<JsonBean> json) {this.json = json;}public List<LikeBean> getLike() {return like;}public void setLike(List<LikeBean> like) {this.like = like;}public static class JsonBean {/**
         * id : 0
         * image : .jpg
         * name : DC FIRST INFANTRY M TEES 短袖T恤
         * price : 299.00
         * agio : 400.00
         * amount : 10
         * chart : .jpg
         * swiper : [{"img":".jpg"},{"img":".jpg"}]
         */
        private int id;private String image;private String name;private String price;private String agio;private String amount;private String chart;private List<SwiperBean> swiper;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getImage() {return image;}public void setImage(String image) {this.image = image;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPrice() {return price;}public void setPrice(String price) {this.price = price;}public String getAgio() {return agio;}public void setAgio(String agio) {this.agio = agio;}public String getAmount() {return amount;}public void setAmount(String amount) {this.amount = amount;}public String getChart() {return chart;}public void setChart(String chart) {this.chart = chart;}public List<SwiperBean> getSwiper() {return swiper;}public void setSwiper(List<SwiperBean> swiper) {this.swiper = swiper;}public static class SwiperBean {/**
             * img : .jpg
             */
            private String img;public String getImg() {return img;}public void setImg(String img) {this.img = img;}}}public static class LikeBean {/**
         * id : 5
         * image : .jpg
         * name : corade 藏青格纹冲锋衣
         * price : 138.00
         * amount : 10
         * chart : .jpg
         * swiper : [{"img":".jpg"},{"img":".jpg"}]
         */
        private int id;private String image;private String name;private String price;private String amount;private String chart;private List<SwiperBeanX> swiper;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getImage() {return image;}public void setImage(String image) {this.image = image;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPrice() {return price;}public void setPrice(String price) {this.price = price;}public String getAmount() {return amount;}public void setAmount(String amount) {this.amount = amount;}public String getChart() {return chart;}public void setChart(String chart) {this.chart = chart;}public List<SwiperBeanX> getSwiper() {return swiper;}public void setSwiper(List<SwiperBeanX> swiper) {this.swiper = swiper;}public static class SwiperBeanX {/**
             * img : .jpg
             */
            private String img;public String getImg() {return img;}public void setImg(String img) {this.img = img;}}}
}

MainActivity   主要方法类：

public class MainActivity extends AppCompatActivity implements View.OnClickListener{private static final int SUCCESS = 492;List<Bean.JsonBean> datas = new ArrayList<>();String path = ".json";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.JsonBean> data = Json();datas.addAll(data);}}};private recyclerviewAdapter adapter;private RecyclerView mRlv;private Button ll;private Button bg;@Override
    protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initadd();//初始化
        getOk();}private void initadd() {mRlv = (RecyclerView) findViewById(R.id.rlv);ll = findViewById(R.id.ll);//线性布局
        bg = findViewById(R.id.bg);//表格布局

        //按钮的监听
        ll.setOnClickListener(this);bg.setOnClickListener(this);}//按钮的监听
    @Override
    public void onClick(View view) {switch (Id()){case R.id.ll://线性布局管理器
                mRlv.setLayoutManager(new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false));setadapter();break;case R.id.bg://表格布局管理器
                mRlv.setLayoutManager(new GridLayoutManager(this,2));setadapter();break;}}private void setadapter() {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 = wCall(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;}
}

activity_main   布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    android:orientation="vertical"
    xmlns:android=""
    xmlns:app=""
    xmlns:tools=""
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"><LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"><Button
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:text="线性布局"
            android:id="@+id/ll"/><Button
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:text="表格布局"
            android:id="@+id/bg"/></LinearLayout><android.support.v7.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/rlv"/></LinearLayout>

recyclerviewAdapter   适配器类：

public class recyclerviewAdapter extends RecyclerView.Adapter implements MoveSwipeListener {private Context context;private List<Bean.JsonBean> datas;private OnItemClickListener onItemClickListener;public recyclerviewAdapter(Context context, List<Bean.JsonBean> 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).getName());vh.tv2.setText(datas.get(position).getAgio());vh.iv.setImageURI(Uri.parse(datas.get(position).getImage()));
//        Instance().(position).getImage(),vh.iv, ImageOptions());

//        final String picUrl = (position).getImage();
//        final Uri uri = Uri.parse(picUrl);
//        vh.iv.setImageURI(uri);

        vh.itemView.setOnClickListener(new View.OnClickListener() {@Override
            public void onClick(View v) {if (onItemClickListener!=null){onItemClickListener.onItemClick(position);}/**
                 * 点击条目删除
                 */
                AlertDialog.Builder builder = new AlertDialog.Builder(context);builder.setIcon(R.mipmap.ic_launcher);builder.setTitle("我是对话框");builder.setMessage("我是对话框的内容");builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {@Override
                    public void onClick(DialogInterface dialog, int which) {Toast.makeText(context, "点击了取消按钮", Toast.LENGTH_SHORT).show();dialog.dismiss();}});builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {@Override
                    public void onClick(DialogInterface dialog, int which) {Toast.makeText(context, "点击了确定的按钮", Toast.LENGTH_SHORT).show();dialog.dismiss();//移除数据
                        datas.remove(position);//条目刷新
                        notifyDataSetChanged();}});AlertDialog dialog = ate();dialog.show();}});}@Override
    public int getItemCount() {return datas.size();}private class MyViewHolder extends  RecyclerView.ViewHolder {private final ImageView iv;private final TextView tv;private final TextView tv2;public MyViewHolder(View itemView) {super(itemView);iv = itemView.findViewById(R.id.iv);tv = itemView.findViewById(R.id.tv);tv2 = itemView.findViewById(R.id.tv2);}}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(final int position) {}
}

item   适配器布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android=""
    xmlns:app=""
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"><com.facebook.drawee.view.SimpleDraweeView
        android:id="@+id/iv"
        android:layout_width="match_parent"
        android:layout_height="300dp" /><LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"><TextView
            android:id="@+id/textView"
            android:textSize="20dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="商品信息：" /><TextView
            android:id="@+id/tv"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="tv" /><LinearLayout
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"><TextView
                android:id="@+id/textView2"
                android:textSize="20dp"
                android:layout_width="80dp"
                android:layout_height="wrap_content"
                android:text="价格：" /><TextView
                android:id="@+id/tv2"
                android:textSize="20dp"
                android:textColor="#f00"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="tv2" /></LinearLayout></LinearLayout>
</LinearLayout>

MoveSwipeListener   接口：

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

ItemTouchCallBack 

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 = AdapterPosition();int newPosition = AdapterPosition();//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 = AdapterPosition();myAdapter.swipe(adapterPosition);}
}

MyApp 类：（记得在清单文件中添加name）

public class MyApp  extends Application {@Override
    public void onCreate() {super.onCreate();//fresco的初始化
        Fresco.initialize(this);}
}