简单商品搜索界面的实现，流失布局，历史记录，商品展示，商品详情

//添加依赖，涉及到json解析，图片加载，ok请求，recyclerview

compile 'com.squareup.okhttp3:okhttp:3.6.0'
    compile 'com.squareup.okio:okio:1.11.0'
    compile 'com.github.bumptech.glide:glide:3.7.0'
    compile 'com.youth.banner:banner:1.4.9'
    compile 'com.orhanobut:logger:2.1.1'
    compile 'com.google.code.gson:gson:2.8.2'
    compile 'com.android.support:recyclerview-v7:25.3.1'

//添加需要的权限

//util工具类

public class ApiUtil {
    public static final String LOGIN_URL = "https://www.zhaoapi.cn/user/login";

    public static final String REGIST_URL = "https://www.zhaoapi.cn/user/reg";

    public static final String SEARCH_URL = "http://120.27.23.105/product/searchProducts";


} 

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Environment;
import android.util.Log;
import android.widget.Toast;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import java.util.concurrent.TimeUnit;

import okhttp3.Cache;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.MediaType;
import okhttp3.MultipartBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;



public class OkHttp3Util {
    /**
     * 懒汉 安全 加同步
     * 私有的静态成员变量 只声明不创建
     * 私有的构造方法
     * 提供返回实例的静态方法
     */
    private static OkHttpClient okHttpClient = null;




    private OkHttp3Util() {
    }


    public static OkHttpClient getInstance() {
        if (okHttpClient == null) {
            //加同步安全
            synchronized (OkHttp3Util.class) {
                if (okHttpClient == null) {
                    //okhttp可以缓存数据....指定缓存路径
                    File sdcache = new File(Environment.getExternalStorageDirectory(), "cache");
                    //指定缓存大小
                    int cacheSize = 10 * 1024 * 1024;


                    okHttpClient = new OkHttpClient.Builder()//构建器
                            .connectTimeout(15, TimeUnit.SECONDS)//连接超时
                            .writeTimeout(20, TimeUnit.SECONDS)//写入超时
                            .readTimeout(20, TimeUnit.SECONDS)//读取超时
                            .cache(new Cache(sdcache.getAbsoluteFile(), cacheSize))//设置缓存
                            .build();
                }
            }


        }


        return okHttpClient;
    }


    /**
     * get请求
     * 参数1 url
     * 参数2 回调Callback
     */


    public static void doGet(String url, Callback callback) {


        //创建OkHttpClient请求对象
        OkHttpClient okHttpClient = getInstance();
        //创建Request
        Request request = new Request.Builder().url(url).build();
        //得到Call对象
        Call call = okHttpClient.newCall(request);
        //执行异步请求
        call.enqueue(callback);




    }


    /**
     * post请求
     * 参数1 url
     * 参数2 Map params post请求的时候给服务器传的数据
     *      add..("","")
     *      add()
     */


    public static void doPost(String url, Map params, Callback callback) {


        //创建OkHttpClient请求对象
        OkHttpClient okHttpClient = getInstance();
        //3.x版本post请求换成FormBody 封装键值对参数


        FormBody.Builder builder = new FormBody.Builder();
        //遍历集合
        for (String key : params.keySet()) {
            builder.add(key, params.get(key));


        }




        //创建Request
        Request request = new Request.Builder().url(url).post(builder.build()).build();


        Call call = okHttpClient.newCall(request);
        call.enqueue(callback);


    }


    /**
     * post请求上传文件....包括图片....流的形式传任意文件...
     * 参数1 url
     * file表示上传的文件
     * fileName....文件的名字,,例如aaa.jpg
     * params ....传递除了file文件 其他的参数放到map集合
     *
     */
    public static void uploadFile(String url, File file, String fileName,Map params) {
        //创建OkHttpClient请求对象
        OkHttpClient okHttpClient = getInstance();


        MultipartBody.Builder builder = new MultipartBody.Builder();
        builder.setType(MultipartBody.FORM);


        //参数
        if (params != null){
            for (String key : params.keySet()){
                builder.addFormDataPart(key,params.get(key));
            }
        }
        //文件...参数name指的是请求路径中所接受的参数...如果路径接收参数键值是fileeeee,此处应该改变
        builder.addFormDataPart("file",fileName, RequestBody.create(MediaType.parse("application/octet-stream"),file));


        //构建
        MultipartBody multipartBody = builder.build();


        //创建Request
        Request request = new Request.Builder().url(url).post(multipartBody).build();


        //得到Call
        Call call = okHttpClient.newCall(request);
        //执行请求
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {


            }


            @Override
            public void onResponse(Call call, Response response) throws IOException {
                //上传成功回调 目前不需要处理
                if (response.isSuccessful()){
                    String s = response.body().string();
                    com.orhanobut.logger.Logger.e("上传--"+s);
                }
            }
        });


    }


    /**
     * Post请求发送JSON数据....{"name":"zhangsan","pwd":"123456"}
     * 参数一：请求Url
     * 参数二：请求的JSON
     * 参数三：请求回调
     */
    public static void doPostJson(String url, String jsonParams, Callback callback) {
        RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), jsonParams);
        Request request = new Request.Builder().url(url).post(requestBody).build();
        Call call = getInstance().newCall(request);
        call.enqueue(callback);


    }


    /**
     * 下载文件 以流的形式把apk写入的指定文件 得到file后进行安装
     * 参数er：请求Url
     * 参数san：保存文件的文件夹....download
     */
    public static void download(final Activity context, final String url, final String saveDir) {
        Request request = new Request.Builder().url(url).build();
        Call call = getInstance().newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                com.orhanobut.logger.Logger.e(e.getLocalizedMessage());
            }


            @Override
            public void onResponse(Call call, final Response response) throws IOException {


                InputStream is = null;
                byte[] buf = new byte[2048];
                int len = 0;
                FileOutputStream fos = null;
                try {
                    is = response.body().byteStream();//以字节流的形式拿回响应实体内容
                    //apk保存路径
                    final String fileDir = isExistDir(saveDir);
                    //文件
                    File file = new File(fileDir, getNameFromUrl(url));


                    fos = new FileOutputStream(file);
                    while ((len = is.read(buf)) != -1) {
                        fos.write(buf, 0, len);
                    }


                    fos.flush();


                    context.runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            Toast.makeText(context, "下载成功:" + fileDir + "," + getNameFromUrl(url), Toast.LENGTH_SHORT).show();
                        }
                    });


                    //apk下载完成后 调用系统的安装方法
                    Intent intent = new Intent(Intent.ACTION_VIEW);
                    intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
                    context.startActivity(intent);




                } catch (IOException e) {
                    e.printStackTrace();
                } finally {
                    if (is != null) is.close();
                    if (fos != null) fos.close();




                }
            }
        });


    }


    /**
     * 判断下载目录是否存在......并返回绝对路径
     *
     * @param saveDir
     * @return
     * @throws IOException
     */
    public static String isExistDir(String saveDir) throws IOException {
        // 下载位置
        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {


            File downloadFile = new File(Environment.getExternalStorageDirectory(), saveDir);
            if (!downloadFile.mkdirs()) {
                downloadFile.createNewFile();
            }
            String savePath = downloadFile.getAbsolutePath();
            Log.e("savePath", savePath);
            return savePath;
        }
        return null;
    }


    /**
     * @param url
     * @return 从下载连接中解析出文件名
     */
    private static String getNameFromUrl(String url) {
        return url.substring(url.lastIndexOf("/") + 1);
    }
}

import android.content.Context;
import android.widget.ImageView;

import com.bumptech.glide.Glide;
import com.youth.banner.loader.ImageLoader;



public class GlideImageLoader extends ImageLoader {
    @Override
    public void displayImage(Context context, Object path, ImageView imageView) {
        Glide.with(context).load(path).into(imageView);
    }
}

//MVP模式  m层

import android.util.Log;


import com.cuijiajum.sanzhou.bean.AllContent;
import com.cuijiajum.sanzhou.persenter.IPresenterSearch;
import com.cuijiajum.sanzhou.util.OkHttp3Util;
import com.google.gson.Gson;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;


public class SearchModel {
    private IPresenterSearch iPresenterSearch;

    public SearchModel(IPresenterSearch iPresenterSearch) {
        this.iPresenterSearch = iPresenterSearch;
    }

    public void getData(String loginUrl, String keywords) {
        Map map = new HashMap<>();
        Log.d("++++++++++++++",loginUrl);
        map.put("keywords",keywords);
        map.put("page","1");
        map.put("source","android");
        OkHttp3Util.doGet(loginUrl+"?keywords="+keywords+"&page="+1+"&source="+"android", new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                e.printStackTrace();
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if(response.isSuccessful()){
                    String json = response.body().string();

                    if(json!=null){
                        //使用原生解析
                        try {
                            Gson gson = new Gson();
                            AllContent allContent = gson.fromJson(json, AllContent.class);

                            //使用接口回调
                            iPresenterSearch.onSuccess(allContent);
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                    }
                }
            }
        });
    }
}

//v层

import android.content.Intent;
import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;


import com.cuijiajum.sanzhou.Liushi;
import com.cuijiajum.sanzhou.R;
import com..cuijiajum.sanzhou.shujuku.Dao;

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

public class MainActivity extends AppCompatActivity {


    private Liushi mFlowLayout;
    private EditText name;
    private Dao dao;
    private ListView lv;
    private ArrayAdapter adapter;
    private List sel;
    private Button btn;
    List a=new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mFlowLayout = findViewById(R.id.ls);

        name =  findViewById(R.id.name);
        lv =  findViewById(R.id.lv);
        btn =  findViewById(R.id.btn);
        dao = new Dao(MainActivity.this);
        sel = dao.sel();
        adapter = new ArrayAdapter<>(MainActivity.this, android.R.layout.simple_list_item_1, android.R.id.text1, sel);

        lv.setAdapter(adapter);
        zhanshi();
        initChildViews();

    }

    private void zhanshi() {
        List sel4 = dao.sel();
        ArrayAdapter ada = new ArrayAdapter<>(MainActivity.this, android.R.layout.simple_list_item_1, android.R.id.text1, sel4);
        lv.setAdapter(ada);
    }


    private String mNames[] = {
            "内衣","外套","裤衩",
            "男鞋","女鞋","text",
            "name","type","search","logcat",
            "耐克","阿迪达斯","李宁",
            "361度","女鞋"
    };

    private void initChildViews() {
        ViewGroup.MarginLayoutParams lp = new ViewGroup.MarginLayoutParams(
                ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        lp.leftMargin = 10;
        lp.rightMargin = 10;
        lp.topMargin = 5;
        lp.bottomMargin = 5;
        for (int i = 0; i < mNames.length; i++) {
            TextView view = new TextView(this);
            view.setText(mNames[i]);
            view.setTextColor(Color.WHITE);

            final int finalI = i;
            view.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    Toast.makeText(MainActivity.this,mNames[finalI], Toast.LENGTH_SHORT).show();
                }
            });

            view.setBackgroundDrawable(getResources().getDrawable(R.drawable.textview_bg));
            mFlowLayout.addView(view, lp);


        }
    }

    public void delall(View view) {
        dao.del();
        List sel2 = dao.sel();
        ArrayAdapter adapter2 = new ArrayAdapter<>(MainActivity.this, android.R.layout.simple_list_item_1, android.R.id.text1, sel2);

        lv.setAdapter(adapter2);

        Toast.makeText(MainActivity.this,"清除成功",Toast.LENGTH_LONG).show();

        btn.setVisibility(View.INVISIBLE);
    }

    public void add(View view) {

        String n = name.getText().toString();
        int i = dao.insertJson(n);
        btn.setVisibility(View.VISIBLE);
        List sel3 = dao.sel();
        a.add(0,n);
        ArrayAdapter adapter3 = new ArrayAdapter<>(MainActivity.this, android.R.layout.simple_list_item_1, android.R.id.text1, a);
        Intent intent = new Intent(MainActivity.this,SearchActivity.class);
        intent.putExtra("name",n);
        startActivity(intent);

        lv.setAdapter(adapter3);
    }
}

package com.cuijiajum.sanzhou.View;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.view.View;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.Toast;

import com.cuijiajum.sanzhou.R;
import com.cuijiajum.sanzhou.adapter.OnItemClickListner;
import com.cuijiajum.sanzhou.adapter.SearchRecyclerAdapter;
import com.cuijiajum.sanzhou.adapter.SearchRecyclerGVAdapter;
import com.cuijiajum.sanzhou.bean.AllContent;
import com.cuijiajum.sanzhou.persenter.SearchPresenter;
import com.cuijiajum.sanzhou.util.ApiUtil;
import com.gson.Gson;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.List;

public class SearchActivity extends AppCompatActivity implements IViewSearch, OnItemClickListner {


    private RecyclerView recycler_view;
    private SearchPresenter searchPresenter;
    private CheckBox ck;
    boolean flag = false;
    private String keywords;
    private String name;
    private List data;

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

        Intent intent = getIntent();
        name = intent.getStringExtra("name");
        recycler_view =  findViewById(R.id.recycler_view);
        ck =  findViewById(R.id.ck);
        searchPresenter = new SearchPresenter(this);
        try {
            keywords = URLEncoder.encode(name, "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        }
        searchPresenter.getData(ApiUtil.SEARCH_URL,keywords);
    }

    @Override
    public void onSuccess(final AllContent allContent) {
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                data = allContent.getData();
                Toast.makeText(SearchActivity.this, allContent.getMsg(),Toast.LENGTH_SHORT).show();
                //设置适配器
                /*SearchRecyclerAdapter adapter = new SearchRecyclerAdapter(SearchActivity.this,data);
                recycler_view.setAdapter(adapter);
                recycler_view.setLayoutManager(new LinearLayoutManager(SearchActivity.this, LinearLayout.VERTICAL,false));*/
                setAdapter(data);

                ck.setChecked(flag);
                ck.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        if(flag){
                            //设置管理器、适配器
                            setAdapter(data);
                            ck.setChecked(false);
                            flag = ck.isChecked();
                        }else{
                            SearchRecyclerGVAdapter gvAdapter = new SearchRecyclerGVAdapter(SearchActivity.this, data);
                            recycler_view.setAdapter(gvAdapter);
                            recycler_view.setLayoutManager(new StaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL));
                           gvAdapter.setOnitemClickListner(new OnItemClickListner() {
                               @Override
                               public void onItemClick(int position) {
                                   Intent intent = new Intent(SearchActivity.this, GoodsActivity.class);
                                   intent.putExtra("pid",data.get(0).getPid());
                                   startActivity(intent);
                               }

                               @Override
                               public void onItemLongClickListner(int position) {

                               }
                           });
                            ck.setChecked(true);
                            flag = ck.isChecked();
                        }
                    }
                });

            }
        });

    }

    private void setAdapter(List data) {
        SearchRecyclerAdapter adapter = new SearchRecyclerAdapter(SearchActivity.this,data);
        recycler_view.setAdapter(adapter);
        recycler_view.setLayoutManager(new LinearLayoutManager(SearchActivity.this, LinearLayout.VERTICAL,false));
        adapter.setOnitemClickListner(this);
    }


    @Override
    public void onItemClick(int position) {
        Intent intent = new Intent(SearchActivity.this, GoodsActivity.class);
        intent.putExtra("pid",data.get(0).getPid());
        startActivity(intent);
    }

    @Override
    public void onItemLongClickListner(int position) {

    }
}

/**
 * Created by 李欣 on 2017/12/9.
 */

public interface IViewSearch {
    void onSuccess(AllContent allContent);
}

import android.content.Intent;
import android.graphics.Paint;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

import com.cuijiajum.sanzhou.R;
import com.cuijiajum.sanzhou.bean.GoodsBean;
import com.cuijiajum.sanzhou.util.GlideImageLoader;
import com.cuijiajum.sanzhou.util.OkHttp3Util;
import com.google.gson.Gson;
import com.youth.banner.Banner;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;

public class GoodsActivity extends AppCompatActivity {

    private int pid;
    private Banner mbanner;
    private TextView title_01,price_01,price_02;
    private List img = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_goods);
        Intent intent = getIntent();
        pid = intent.getIntExtra("pid", 0);

        mbanner = findViewById(R.id.mbanner);
        title_01 = findViewById(R.id.title_goods);
        price_01 = findViewById(R.id.price_01_goods);
        price_02 = findViewById(R.id.price_02_goods);
        price_01.getPaint().setFlags(Paint.STRIKE_THRU_TEXT_FLAG);


        OkHttp3Util.doGet("https://www.zhaoapi.cn/product/getProductDetail?pid="+pid+"&source=android", new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if(response.isSuccessful()){
                    String json = response.body().string();
                    Gson gson = new Gson();
                    GoodsBean goodsBean = gson.fromJson(json, GoodsBean.class);
                    String images = goodsBean.getData().getImages();
                    final double bargainPrice = goodsBean.getData().getBargainPrice();
                    final double price = goodsBean.getData().getPrice();
                    final String title = goodsBean.getData().getTitle();

                    String[] split = images.split("\\|");
                    for (String str :split){
                        img.add(str);
                    }
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            //设置图片加载器
                            mbanner.setImageLoader(new GlideImageLoader());
                            //设置图片集合
                            mbanner.setImages(img);
                            //设置自动轮播，默认为true
                            mbanner.isAutoPlay(false);
                            //设置轮播时间
                            mbanner.setDelayTime(1500);
                            //banner设置方法全部调用完毕时最后调用
                            mbanner.start();
                            title_01.setText(title);
                            price_01.setText("原价:￥"+price+"");
                            price_02.setText("优惠价：￥"+bargainPrice+"");
                        }
                    });
                }
            }
        });
    }

    public void add_gouwuche(View view) {
        OkHttp3Util.doGet("https://www.zhaoapi.cn/product/addCart?pid=" + pid + "&uid=2809&source=android", new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
               if (response.isSuccessful()){
                   String string = response.body().string();
                   runOnUiThread(new Runnable() {
                       @Override
                       public void run() {
                           Toast.makeText(GoodsActivity.this,"添加成功",Toast.LENGTH_SHORT).show();
                       }
                   });
               }
            }
        });
    }
}

//数据库

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;



public class Myhelpher extends SQLiteOpenHelper {
    public Myhelpher(Context context) {
        super(context,"sss.db",null, 2);
    }

    @Override
    public void onCreate(SQLiteDatabase sqLiteDatabase) {
        //创建表
        sqLiteDatabase.execSQL("create table shuju1(id integer primary key autoincrement,json text not null)");



    }

    @Override
    public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {

    }
}

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;

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


public class Dao  {

    private Myhelpher my;
    private SQLiteDatabase db;
    private SQLiteDatabase d;

    public Dao(Context context) {
     my=  new Myhelpher(context);
    }

    /**
     * 插入数据的操作
     */
    public int insertJson(String json){

        SQLiteDatabase database = my.getWritableDatabase();
        //再去添加
        ContentValues values = new ContentValues();
        values.put("json",json);
        database.insert("shuju1",null,values);
        //关闭
        database.close();
        return 1;
    }

    public List sel(){
        d = my.getReadableDatabase();

        List list=new ArrayList<>();
        Cursor cursor = d.rawQuery("select * from shuju1", null);

        while (cursor.moveToNext()){
            String s = cursor.getString(1);
            list.add(s);


        }
        return list;


    }


    public void del(){
 db = my.getWritableDatabase();
        db.execSQL("delete from shuju1");


    }
    public int delyi(String i){
        db = my.getWritableDatabase();
        db.execSQL("delete from shuju1 where json=?",new String[]{i});

        return 1;

    }



}

//流式布局

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;

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

/**
 * Created by hasee on 2017/12/16.
 */

public class Liushi extends ViewGroup {

    //存储所有子View
    private List> mAllChildViews = new ArrayList<>();
    //每一行的高度
    private List mLineHeight = new ArrayList<>();


    public Liushi(Context context) {
        super(context);
    }

    public Liushi(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public Liushi(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }


    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);

        //父控件传进来的宽度和高度以及对应的测量模式
        int sizeWidth = MeasureSpec.getSize(widthMeasureSpec);
        int modeWidth = MeasureSpec.getMode(widthMeasureSpec);
        int sizeHeight = MeasureSpec.getSize(heightMeasureSpec);
        int modeHeight = MeasureSpec.getMode(heightMeasureSpec);
        //如果当前ViewGroup的宽高为wrap_content的情况
        int width = 0;//自己测量的 宽度
        int height = 0;//自己测量的高度
        //记录每一行的宽度和高度
        int lineWidth = 0;
        int lineHeight = 0;

        //获取子view的个数
        int childCount = getChildCount();
        for(int i = 0;i < childCount; i ++){
            View child = getChildAt(i);
            //测量子View的宽和高
            measureChild(child, widthMeasureSpec, heightMeasureSpec);
            //得到LayoutParams
            MarginLayoutParams lp = (MarginLayoutParams) getLayoutParams();
            //子View占据的宽度
            int childWidth = child.getMeasuredWidth() + lp.leftMargin + lp.rightMargin;
            //子View占据的高度
            int childHeight = child.getMeasuredHeight() + lp.topMargin + lp.bottomMargin;
            //换行时候
            if(lineWidth + childWidth > sizeWidth){
                //对比得到最大的宽度
                width = Math.max(width, lineWidth);
                //重置lineWidth
                lineWidth = childWidth;
                //记录行高
                height += lineHeight;
                lineHeight = childHeight;
            }else{//不换行情况
                //叠加行宽
                lineWidth += childWidth;
                //得到最大行高
                lineHeight = Math.max(lineHeight, childHeight);
            }
            //处理最后一个子View的情况
            if(i == childCount -1){
                width = Math.max(width, lineWidth);
                height += lineHeight;
            }
        }
        //wrap_content
        setMeasuredDimension(modeWidth == MeasureSpec.EXACTLY ? sizeWidth : width,
                modeHeight == MeasureSpec.EXACTLY ? sizeHeight : height);
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);

    }

    @Override
    protected void onLayout(boolean b, int l, int i1, int i2, int i3) {
        mAllChildViews.clear();
        mLineHeight.clear();
        //获取当前ViewGroup的宽度
        int width = getWidth();

        int lineWidth = 0;
        int lineHeight = 0;
        //记录当前行的view
        List lineViews = new ArrayList();
        int childCount = getChildCount();
        for(int i = 0;i < childCount; i ++){
            View child = getChildAt(i);
            MarginLayoutParams lp = (MarginLayoutParams) child.getLayoutParams();
            int childWidth = child.getMeasuredWidth();
            int childHeight = child.getMeasuredHeight();

            //如果需要换行
            if(childWidth + lineWidth + lp.leftMargin + lp.rightMargin > width){
                //记录LineHeight
                mLineHeight.add(lineHeight);
                //记录当前行的Views
                mAllChildViews.add(lineViews);
                //重置行的宽高
                lineWidth = 0;
                lineHeight = childHeight + lp.topMargin + lp.bottomMargin;
                //重置view的集合
                lineViews = new ArrayList();
            }
            lineWidth += childWidth + lp.leftMargin + lp.rightMargin;
            lineHeight = Math.max(lineHeight, childHeight + lp.topMargin + lp.bottomMargin);
            lineViews.add(child);
        }
        //处理最后一行
        mLineHeight.add(lineHeight);
        mAllChildViews.add(lineViews);

        //设置子View的位置
        int left = 0;
        int top = 0;
        //获取行数
        int lineCount = mAllChildViews.size();
        for(int i = 0; i < lineCount; i ++){
            //当前行的views和高度
            lineViews = mAllChildViews.get(i);
            lineHeight = mLineHeight.get(i);
            for(int j = 0; j < lineViews.size(); j ++){
                View child = lineViews.get(j);
                //判断是否显示
                if(child.getVisibility() == View.GONE){
                    continue;
                }
                MarginLayoutParams lp = (MarginLayoutParams) child.getLayoutParams();
                int cLeft = left + lp.leftMargin;
                int cTop = top + lp.topMargin;
                int cRight = cLeft + child.getMeasuredWidth();
                int cBottom = cTop + child.getMeasuredHeight();
                //进行子View进行布局
                child.layout(cLeft, cTop, cRight, cBottom);
                left += child.getMeasuredWidth() + lp.leftMargin + lp.rightMargin;
            }
            left = 0;
            top += lineHeight;
        }
    }
    /**
     159.     * 与当前ViewGroup对应的LayoutParams
     160.     */
    @Override
    public LayoutParams generateLayoutParams(AttributeSet attrs) {
        // TODO Auto-generated method stub

        return new MarginLayoutParams(getContext(), attrs);
    }


    @Override
    public boolean onTouchEvent(MotionEvent event) {


        switch (event.getAction()){
            case MotionEvent.ACTION_DOWN:
                break;
            case MotionEvent.ACTION_MOVE:
                break;
            case MotionEvent.ACTION_UP:
                break;
        }
        return true;

    }
}

//p

public interface IPresenterSearch {
    void onSuccess(AllContent allContent);
}

import com.cuijiajum.sanzhou.View.IViewSearch;
import com.cuijiajum.sanzhou.View.SearchActivity;
import com.cuijiajum.sanzhou.bean.AllContent;
import com.cuijiajum.sanzhou.model.SearchModel;

public class SearchPresenter implements IPresenterSearch{
    SearchModel searchModel = new SearchModel(this);
    private IViewSearch iViewSearch;
    public SearchPresenter(SearchActivity iViewSearch) {
        this.iViewSearch = iViewSearch;
    }

    public void getData(String searchUrl, String keywords) {
        searchModel.getData(searchUrl,keywords);
    }
    @Override
    public void onSuccess(AllContent allContent) {
        iViewSearch.onSuccess(allContent);
    }


}

//适配器

import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;






public class SearchRecyclerHolder extends RecyclerView.ViewHolder {

    public ImageView img;
    public TextView title;
    public TextView price;

    public SearchRecyclerHolder(View itemView) {
        super(itemView);
        img = (ImageView) itemView.findViewById(R.id.img);
        price = (TextView) itemView.findViewById(R.id.price);
        title = (TextView) itemView.findViewById(R.id.title);
    }
}

//适配器    抽取接口

public interface OnItemClickListner {
    public void onItemClick(int position);
    public void onItemLongClickListner(int position);
}

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;


import com.cuijiajum.sanzhou.R;
import com.cuijiajum.sanzhou.bean.AllContent;
import com.cuijiajum.sanzhou.holder.SearchRecyclerHolder;
import com.bumptech.glide.Glide;

import java.util.List;



public class SearchRecyclerAdapter extends RecyclerView.Adapter {
    Context context;
    List data;
    private OnItemClickListner onItemClickListner;

    public SearchRecyclerAdapter(Context context, List data) {
        this.context = context;
        this.data = data;
    }

    @Override
    public SearchRecyclerHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(context).inflate(R.layout.list_item, parent, false);
        SearchRecyclerHolder searchRecyclerHolder = new SearchRecyclerHolder(view);
        return searchRecyclerHolder;
    }

    @Override
    public void onBindViewHolder(SearchRecyclerHolder holder, final int position) {
        AllContent.DataBean dataBean = data.get(position);
        String images = dataBean.getImages();
        String[] split = images.split("\\|");
        //设置数据
        Glide.with(context).load(split[0]).into(holder.img);
        holder.price.setText("￥"+dataBean.getPrice()+"");
        holder.title.setText(dataBean.getTitle());
        holder.title.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
               onItemClickListner.onItemClick(position);
            }
        });
    }

    @Override
    public int getItemCount() {
        return data.size();
    }


    public void setOnitemClickListner(OnItemClickListner onItemClickListner) {
        this.onItemClickListner = onItemClickListner;

        //onItemClickListner.onItemClick();
    }
}

package com.cuijiajum.sanzhou.adapter;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;


import com.cuijiajum.sanzhou.R;
import com.cuijiajum.sanzhou.bean.AllContent;
import com.cuijiajum.sanzhou.holder.SearchRecyclerHolder;
import com.bumptech.glide.Glide;

import java.util.List;


public class SearchRecyclerGVAdapter extends RecyclerView.Adapter {
    Context context;
    List data;
    private OnItemClickListner onItemClickListner;

    public SearchRecyclerGVAdapter(Context context, List data) {
        this.context = context;
        this.data = data;
    }

    @Override
    public SearchRecyclerHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(context).inflate(R.layout.grid_item, parent, false);
        SearchRecyclerHolder searchRecyclerHolder = new SearchRecyclerHolder(view);
        return searchRecyclerHolder;
    }

    @Override
    public void onBindViewHolder(SearchRecyclerHolder holder, final int position) {
        AllContent.DataBean dataBean = data.get(position);
        String images = dataBean.getImages();
        String[] split = images.split("\\|");
        //设置数据
        Glide.with(context).load(split[0]).into(holder.img);
        holder.price.setText("￥"+dataBean.getPrice()+"");
        holder.title.setText(dataBean.getTitle());
        holder.title.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                onItemClickListner.onItemClick(position);
            }
        });
    }

    @Override
    public int getItemCount() {
        return data.size();
    }
    public void setOnitemClickListner(OnItemClickListner onItemClickListner) {
        this.onItemClickListner = onItemClickListner;

        //onItemClickListner.onItemClick();
    }
}

//布局方法

//main布局

//search页面

//goods商品详情界面

//适配器需要加载的界面

//条目布局

//适配器表格布局