RecycleView+Glide

封装类

public class Utils {
    public static boolean isMobileNO(String mobileNums) {
        /**
         * 判断字符串是否符合手机号码格式
         * 移动号段: 134,135,136,137,138,139,147,150,151,152,157,158,159,170,178,182,183,184,187,188
         * 联通号段: 130,131,132,145,155,156,170,171,175,176,185,186
         * 电信号段: 133,149,153,170,173,177,180,181,189
         * @param str
         * @return 待检测的字符串
         */
        String telRegex = "^((13[0-9])|(14[5,7,9])|(15[^4])|(18[0-9])|(17[0,1,3,5,6,7,8]))\\d{8}$";// "[1]"代表下一位为数字可以是几，"[0-9]"代表可以为0-9中的一个，"[5,7,9]"表示可以是5,7,9中的任意一位,[^4]表示除4以外的任何一个,\\d{9}"代表后面是可以是0～9的数字，有9位。
        if (TextUtils.isEmpty(mobileNums))
            return false;
        else
            return mobileNums.matches(telRegex);
    }

}

public class OkHttpUtils {
    private OkHttpUtils() {};

    private static OkHttpUtils okHttpUtils=null;

    public static OkHttpUtils getInstance(){
        if (okHttpUtils==null){
            okHttpUtils=new OkHttpUtils();
        }
        return okHttpUtils;
    }

    //拦截器
    private static Interceptor myInterceptor(){
        HttpLoggingInterceptor interceptor=new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {
            @Override
            public void log(String message) {
                Log.i("xx",message);
            }
        });
        return interceptor;
    }

    public static void doGet(String url, Callback callback){
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .addInterceptor(myInterceptor())
                .build();
        Request request = new Request.Builder()
                .url(url)
                .build();
        okHttpClient.newCall(request).enqueue(callback);
    }

    public static void doPost(String url, Map<String,String> params,Callback callback){
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .addInterceptor(myInterceptor())
                .build();
        //请求体
        FormBody.Builder builder = new FormBody.Builder();
        //遍历map集合
        for (String key : params.keySet()) {
            builder.add(key, params.get(key));
        }
        Request request = new Request.Builder()
                .url(url)
                .post(builder.build())
                .build();
        okHttpClient.newCall(request).enqueue(callback);
    }
}

登录

布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:background="@color/colorAccent"
        android:gravity="center"
        android:text="登录"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <EditText
        android:id="@+id/et_phone"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_margin="50dp"
        android:hint="请输入手机号" />

    <EditText
        android:id="@+id/et_pwd"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_marginLeft="50dp"

        android:layout_marginRight="50dp"
        android:hint="请输入密码" />

    <Button
        android:id="@+id/bt_login"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="50dp"
        android:text="登录" />
    <Button
        android:id="@+id/bt_zc"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="20dp"
        android:text="注册" />

    <TextView
        android:id="@+id/tv_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

public class MainActivity extends AppCompatActivity  implements LoginView {

    private Button button1;
    private Button button;
    private EditText et_pwd;
    private EditText et_phone;
    private LoginPresenter presenter;

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

        et_phone = findViewById(R.id.et_phone);
        et_pwd = findViewById(R.id.et_pwd);
        button = findViewById(R.id.bt_login);
        button1 = findViewById(R.id.bt_zc);


        presenter = new LoginPresenter(this);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String phone = et_phone.getText().toString();
                String pwd = et_pwd.getText().toString();
                boolean mobileNO = Utils.isMobileNO(phone);
                if (!mobileNO){
                    Toast.makeText(MainActivity.this, "请输入正确的手机号", Toast.LENGTH_SHORT).show();
                    return;
                }
                if (pwd.length()<3){
                    Toast.makeText(MainActivity.this, "密码错误", Toast.LENGTH_SHORT).show();
                    return;
                }
                Map<String,String> params=new HashMap<>();
                params.put("phone",phone);
                params.put("pwd",pwd);
                presenter.sendParamter(params);
            }
        });

        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(MainActivity.this,ZcActivity.class));
                finish();
            }
        });
    }


    @Override
    public void getViewData(String status) {
        if (status.equals("0000")){
            startActivity(new Intent(MainActivity.this,ShowActivity.class));
            finish();
        }
    }
}

public class LoginPresenter {

    private final LoginModel loginModel;
    private final LoginView loginView;

    public LoginPresenter(LoginView view) {
        loginModel = new LoginModel();
        loginView=view;
    }



    public void sendParamter(Map<String,String> params) {
        loginModel.getHttpData(params);
        loginModel.setLoginListener(new LoginModel.onLoginListener() {
            @Override
            public void onResult(String status) {
                loginView.getViewData(status);
            }
        });
    }
}

public class LoginModel {

    private String path="http://172.17.8.100/small/user/v1/login";
    @SuppressLint("HandlerLeak")
    private Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            switch (msg.what){
                case 0:
                    String json= (String) msg.obj;
                    Log.i("xxx",json);
                    try {
                        JSONObject jsonObject=new JSONObject(json);
                        String status = jsonObject.getString("status");
                        loginListener.onResult(status);
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                    break;
            }
        }
    };

    public void getHttpData(Map<String,String> params) {
        OkHttpUtils.doPost(path, params, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String json = response.body().string();
                Message message=new Message();
                message.what=0;
                message.obj=json;
                handler.sendMessage(message);
            }
        });
    }

    public interface onLoginListener{
        void onResult(String status);
    }
    public onLoginListener loginListener;

    public void setLoginListener(onLoginListener loginListener) {
        this.loginListener = loginListener;
    }
}

public interface LoginView {
    void getViewData(String status);
}

注册

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:background="#621afc">

        <TextView
            android:id="@+id/return_regist"
            android:layout_width="wrap_content"
            android:layout_height="50dp"
            android:text="＜"
            android:textColor="#faf8f8"
            android:textSize="30sp" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="50dp"
            android:layout_centerHorizontal="true"
            android:gravity="center"
            android:text="注册"
            android:textColor="#faf8f8"
            android:textSize="30sp" />
    </RelativeLayout>


    <EditText
        android:id="@+id/num_regist"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="30dp"
        android:hint="手机号"
        android:padding="10dp" />

    <EditText
        android:id="@+id/pwd_regist"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="30dp"
        android:layout_marginRight="30dp"
        android:hint="密码"
        android:padding="10dp" />


    <Button
        android:id="@+id/regist_regist"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="30dp"
        android:text="立即注册" />

</LinearLayout>

public class ZcActivity extends AppCompatActivity implements ZcView {

    private EditText num_regist;
    private EditText pwd_regist;
    private Button button;
    private TextView textView;
    private ZcPresenter zcPresenter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_zc);
        num_regist = findViewById(R.id.num_regist);
        pwd_regist = findViewById(R.id.pwd_regist);
        button = findViewById(R.id.regist_regist);
        textView = findViewById(R.id.return_regist);

        zcPresenter = new ZcPresenter(this);

        textView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(ZcActivity.this,MainActivity.class));
                finish();
            }
        });

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String phone = num_regist.getText().toString();
                String pwd = pwd_regist.getText().toString();
                boolean mobileNO = Utils.isMobileNO(phone);
                if (!mobileNO){
                    Toast.makeText(ZcActivity.this, "请输入正确的手机号", Toast.LENGTH_SHORT).show();
                }
                if (pwd.length()<3){
                    Toast.makeText(ZcActivity.this, "密码错误", Toast.LENGTH_SHORT).show();
                }
                HashMap<String,String> params=new HashMap<>();
                params.put("phone",phone);
                params.put("pwd",pwd);
                zcPresenter.sendParameter(params);
            }
        });
    }

    @Override
    public void getViewData(String status) {
        if (status.equals("0000")){
            startActivity(new Intent(ZcActivity.this,MainActivity.class));
            finish();
        }
    }
}

public class ZcPresenter {

    private final ZcModel zcModel;
    private final ZcView zcView;

    public ZcPresenter(ZcView view) {
        zcModel = new ZcModel();
        zcView = view;
    }

    public void sendParameter(HashMap<String,String> params) {
        zcModel.getHttpData(params);
        zcModel.setRegistListener(new ZcModel.onRegistListener() {
            @Override
            public void onResult(String status) {
                zcView.getViewData(status);
            }
        });
    }
}

public class ZcModel {
    String url = "http://172.17.8.100/small/user/v1/register";

    @SuppressLint("HandlerLeak")
    private Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            switch (msg.what){
                case 0:
                    String json= (String) msg.obj;
                    try {
                        JSONObject jsonObject=new JSONObject(json);
                        String status = jsonObject.getString("status");
                        registListener.onResult(status);
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                    break;
            }
        }
    };
    public void getHttpData(HashMap<String,String> params) {
        OkHttpUtils.doPost(url, params, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String json = response.body().string();
                Message message=new Message();
                message.what=0;
                message.obj=json;
                handler.sendMessage(message);
            }
        });
    }

    public interface onRegistListener{
        void onResult(String status);
    }

    public onRegistListener registListener;

    public void setRegistListener(onRegistListener registListener) {
        this.registListener = registListener;
    }
}

public interface ZcView {
    void getViewData(String status);
}

展示

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:background="#228bc4"
        android:gravity="center"
        android:text="商品展示"
        android:textColor="#faf8f8"
        android:textSize="30sp" />

    <android.support.v7.widget.RecyclerView
        android:id="@+id/rlv"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

public class ShowActivity extends AppCompatActivity implements ShowView {

    private RecyclerView recyclerView;
    private ShowPresenter showPresenter;

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

        recyclerView = findViewById(R.id.rlv);

        showPresenter = new ShowPresenter(this);

        LinearLayoutManager linearLayoutManager=new LinearLayoutManager(this);
        recyclerView.setLayoutManager(linearLayoutManager);

        showPresenter.onRelated();
    }

    @Override
    public void getViewData(String json) {
        if (json!=null){
            Gson gson=new Gson();
            JsonBean jsonBean = gson.fromJson(json, JsonBean.class);
            List<JsonBean.ResultBean> result = jsonBean.getResult();
            recyclerView.setAdapter(new MyAdapter(ShowActivity.this,result));
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        showPresenter.deatchView();
    }
}

public class ShowPresenter<T> {

    private final ShowModel showModel;
    private final ShowView showView;
    private Reference<T> tReference;

    public ShowPresenter(ShowView view) {
        showModel = new ShowModel();
        showView = view;
    }

    public void attachView(T t){
        tReference=new WeakReference<T>(t);
    }
    public void onRelated() {
        showModel.getHttpData();
        showModel.setShowListener(new ShowModel.onShowListener() {
            @Override
            public void onResult(String json) {
                showView.getViewData(json);
            }
        });
    }

    public void deatchView(){
        if (tReference!=null){
            tReference.clear();
            tReference=null;
        }
    }
}

public class ShowModel {
    String url = "http://172.17.8.100/small/commodity/v1/bannerShow";

    private Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            switch (msg.what){
                case 0:
                    String json= (String) msg.obj;
                    showListener.onResult(json);
                    break;
            }
        }
    };
    public void getHttpData() {
        OkHttpUtils .doGet(url, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String json = response.body().string();
                Message message=new Message();
                message.what=0;
                message.obj=json;
                handler.sendMessage(message);
            }
        });
    }

    public interface onShowListener{
        void onResult(String json);
    }
    public onShowListener showListener;

    public void setShowListener(onShowListener showListener) {
        this.showListener = showListener;
    }
}

public interface ShowView {
    void getViewData(String json);
}

适配器

<?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="wrap_content"
    tools:context=".MainActivity">


    <ImageView
        android:id="@+id/img"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_alignParentRight="true"/>

    <TextView
        android:id="@+id/title1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"

        android:layout_toLeftOf="@id/img"
        android:text="哈哈"
        android:textSize="25sp" />
</RelativeLayout>

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {

    private Context context;
    private List<JsonBean.ResultBean> result;
    private static final int TYPE_ONE = 0;
    private static final int TYPE_TWO = 1;

    public MyAdapter(Context context, List<JsonBean.ResultBean> result) {
        this.context = context;
        this.result = result;
    }

    @Override
    public int getItemViewType(int position) {
        return position%2;
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
        if (TYPE_ONE==i){
            View view=LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_list,null,false);
            ViewHolder viewHolder=new ViewHolder(view);
            return viewHolder;
        }else {
            View view=LayoutInflater.from(viewGroup.getContext()).inflate(android.R.layout.simple_expandable_list_item_1,null,false);
            ViewHolder viewHolder=new ViewHolder(view);
            return viewHolder;
        }
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder viewHolder, int i) {
        int itemViewType=getItemViewType(i);
        if (TYPE_ONE==itemViewType){
            viewHolder.title.setText(result.get(i).getTitle());
            Glide.with(context).load(result.get(i).getImageUrl()).into(viewHolder.img);
        }else {
            viewHolder.title2.setText(result.get(i).getTitle());
        }
    }

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

    public class ViewHolder extends RecyclerView.ViewHolder{
        private final ImageView img;
        private final TextView title;
        private final TextView title2;
        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            title = itemView.findViewById(R.id.title1);
            title2 = itemView.findViewById(android.R.id.text1);
            img = itemView.findViewById(R.id.img);
        }
    }
}