MVP+登陆注册RecyclerView显示数据

程序员文章站 2022-04-18 17:21:04

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废话不多话，直接上代码，有登陆，注册，RecyclerView线性布局显示数据，加载与刷新

Goodsbean 商品信息类

Loginbean登陆

RegBean注册

Model层

public interface IMainModel {
    public void postReg(String url, Map<String, String> params, OnNetListener<RegBean> onNetListener);
    public void PostLogin(String url, Map<String, String> params, OnNetListener<LoginBean> onNetListener);
    public void postGoods(String url, Map<String, Integer> params, OnNetListener<GoodsBean> onNetListener);
}

public class MainModel implements  IMainModel{
    private Handler handler = new Handler();
    /**
     * POST注册
     * @param url
     * @param params
     * @param onNetListener
     */
    @Override
    public void postReg(String url, Map<String, String> params, final OnNetListener<RegBean> onNetListener) {
        HttpUtils.getHttpUtils().doPost(url, params, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
              onNetListener.onFailure(e);
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String string = response.body().string();
                final RegBean regBean = new Gson().fromJson(string, RegBean.class);
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        onNetListener.onSuccess(regBean);
                    }
                });
            }
        });
    }
    /**
     * POST登陆
     * @param url
     * @param params
     * @param onNetListener
     */
    @Override
    public void PostLogin(String url, Map<String, String> params, final OnNetListener<LoginBean> onNetListener) {
        HttpUtils.getHttpUtils().doPost(url, params, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                onNetListener.onFailure(e);
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String string = response.body().string();
                final LoginBean loginBean = new Gson().fromJson(string, LoginBean.class);
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        onNetListener.onSuccess(loginBean);
                    }
                });
            }
        });
    }

    @Override
    public void postGoods(String url, Map<String, Integer> params, final OnNetListener<GoodsBean> onNetListener) {
        HttpUtils.getHttpUtils().doPostGoods(url, params, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                onNetListener.onFailure(e);
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String string = response.body().string();
                final GoodsBean goodsBean = new Gson().fromJson(string, GoodsBean.class);
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        onNetListener.onSuccess(goodsBean);
                    }
                });
            }
        });
    }
}

Net层

public interface Api {
    public static final String REGURL = "http://120.27.23.105/user/reg";
    public static final String LOGINURL = "http://120.27.23.105/user/login";
    public static final String SHOWURL = "http://120.27.23.105/product/getProducts";
}

public class HttpUtils {
    public static volatile HttpUtils httpUtils;
    public final OkHttpClient okHttpClient;

    public HttpUtils() {
        okHttpClient = new OkHttpClient();
    }

    /**
     * 单例模式
     * @param
     * @return
     */

    public static HttpUtils getHttpUtils() {
        if (httpUtils == null) {
            synchronized (HttpUtils.class) {
                if (httpUtils == null) {
                    httpUtils = new HttpUtils();
                }
            }
        }
        return httpUtils;
    }

    /**
     * Get 请求
     */
    public void doGet(String url, Callback callback) {
        //创建一个Resquest
        Request request = new Request.Builder().url(url).build();
        okHttpClient.newCall(request).enqueue(callback);
    }

    /**
     * post请求
     */
    public void doPost(String url, Map<String, String> params, Callback callback) {
        //创建一个请求
        FormBody.Builder builder = new FormBody.Builder();
        for (Map.Entry<String, String> entry : params.entrySet()) {
            builder.add(entry.getKey(), entry.getValue());
        }
        FormBody formbody = builder.build();
        Request request = new Request.Builder().url(url).post(formbody).build();
        okHttpClient.newCall(request).enqueue(callback);
    }
    /**
     * post请求获取商品
     */
    public void doPostGoods(String url, Map<String, Integer> params, Callback callback) {
        //创建一个请求
        FormBody.Builder builder = new FormBody.Builder();
        for (Map.Entry<String, Integer> entry : params.entrySet()) {
            builder.add(entry.getKey(), entry.getValue()+"");
        }
        FormBody formbody = builder.build();
        Request request = new Request.Builder().url(url).post(formbody).build();
        okHttpClient.newCall(request).enqueue(callback);
    }
}

public interface OnNetListener<T> {

    public void onSuccess(T t);

    public void onFailure(Exception e);
}

p层

public class MainPresenter {
    private IMainModel iMainModel;
    private IMainActivity iMainActivity;
    private IRegActivity iRegActivity;
    private IUserActivity iUserActivity;
    public MainPresenter(IMainActivity iMainActivity) {
        this.iMainActivity = iMainActivity;
        iMainModel = new MainModel();
    }

    public MainPresenter(IRegActivity iRegActivity) {
        this.iRegActivity = iRegActivity;
        iMainModel = new MainModel();
    }

    public MainPresenter(IUserActivity iUserActivity) {
        this.iUserActivity = iUserActivity;
        iMainModel = new MainModel();
    }
    /**
     * PSOT注册
     */
    public void postReg(){
        HashMap<String, String> params = new HashMap<>();
        String phone = iRegActivity.getPhone();
        String pwd = iRegActivity.getPwd();
        boolean norm = isNorm(phone, pwd);
        if (!norm){
            return;
        }
        params.put("mobile", phone);
        params.put("password",pwd);
        iMainModel.postReg(Api.REGURL, params, new OnNetListener<RegBean>() {
            @Override
            public void onSuccess(RegBean regBean) {
                iRegActivity.goLogin(regBean);
            }

            @Override
            public void onFailure(Exception e) {
                iRegActivity.showErro(e);
            }
        });
    };

    /**
     * POST登陆
     */
    public void postLogin(){
        HashMap<String, String> params = new HashMap<>();
        String phone = iMainActivity.getPhone();
        String pwd = iMainActivity.getPwd();
        boolean norm = isNorm(phone, pwd);
        if (!norm){
            return;
        }
        params.put("mobile", phone);
        params.put("password",pwd);
        iMainModel.PostLogin(Api.LOGINURL, params, new OnNetListener<LoginBean>() {
            @Override
            public void onSuccess(LoginBean loginBean) {
                iMainActivity.goUser(loginBean);
            }

            @Override
            public void onFailure(Exception e) {
                iMainActivity.showErro(e);
            }
        });
    };

    /**
     * post获取商品数据
     */
    public void postGoods(int page){
        HashMap<String, Integer> params = new HashMap<>();
        params.put("pscid", 39);
        params.put("page",page);
        iMainModel.postGoods(Api.SHOWURL, params, new OnNetListener<GoodsBean>() {
            @Override
            public void onSuccess(GoodsBean goodsBean) {
                iUserActivity.showGoods(goodsBean);
            }

            @Override
            public void onFailure(Exception e) {
                iUserActivity.showErro(e);
            }
        });
    }
    /**
     * 本地校验手机号和密码
     * @param phone
     * @param pwd
     */
    private boolean isNorm(String phone, String pwd) {
        if (phone.length() < 1 || pwd.length() < 6){
            return false;
        }else {
            String num = "[1][358]\\d{9}";
            if (TextUtils.isEmpty(phone)) {
                return false;
            } else {
                return true;
            }
        }
    }
}

View层的接口

public interface IMainActivity {
    public String getPhone();
    public String getPwd();
    public void showErro(Exception e);
    public void goUser(LoginBean loginBean);
}

public interface IRegActivity {
    public String getPhone();
    public String getPwd();
    public void showErro(Exception e);
    public void goLogin(RegBean regBean);
}

public interface IUserActivity {
    public void showErro(Exception e);
    public void showGoods(GoodsBean goodsBean);
}

Mainactivity

public class MainActivity extends AppCompatActivity implements View.OnClickListener, IMainActivity {
    /**
     * 请输入手机号
     */
    private EditText mEditphone;
    /**
     * 请输入密码
     */
    private EditText mEditpwd;
    /**
     * 注册
     */
    private Button mZc;
    /**
     * 登陆
     */
    private Button mLogin;
    private LinearLayout mActivityMain;
    private MainPresenter mainPresenter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
        mainPresenter = new MainPresenter(this);
    }

    private void initView() {
        mEditphone = (EditText) findViewById(R.id.editphone);
        mEditpwd = (EditText) findViewById(R.id.editpwd);
        mZc = (Button) findViewById(R.id.zc);
        mZc.setOnClickListener(this);
        mLogin = (Button) findViewById(R.id.login);
        mLogin.setOnClickListener(this);
        mActivityMain = (LinearLayout) findViewById(R.id.activity_main);
    }
    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.zc:
                Intent intent = new Intent(MainActivity.this,RegActivity.class);
                startActivity(intent);
                break;
            case R.id.login:
                mainPresenter.postLogin();
                break;
        }
    }

    @Override
    public String getPhone() {
        return mEditphone.getText().toString().trim();
    }

    @Override
    public String getPwd() {
        return mEditpwd.getText().toString().trim();
    }

    @Override
    public void showErro(Exception e) {
        Toast.makeText(MainActivity.this,e+"", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void goUser(LoginBean loginBean) {
        if (loginBean.getCode().equals("0")){
            Intent intent = new Intent(MainActivity.this,UserActivity.class);
            startActivity(intent);
        }
        Toast.makeText(MainActivity.this,loginBean.getMsg(),Toast.LENGTH_SHORT).show();

    }


}

适配器

public class MyRVAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder>{
    private Context context;
    private List<GoodsBean.DataBean> list;

    public MyRVAdapter(Context context, List<GoodsBean.DataBean> list) {
        this.context = context;
        this.list = list;
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(context).inflate(R.layout.rv_item,parent,false);
        return new MyViewHolder(view);
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        MyViewHolder myViewHolder = (MyViewHolder) holder;
        GoodsBean.DataBean dataBean = list.get(position);
        String[] split = dataBean.getImages().split("\\|");
        Glide.with(context).load(split[0]).into(myViewHolder.iv);
        myViewHolder.title.setText(dataBean.getTitle());
        myViewHolder.pricelow.setText("原价:￥"+dataBean.getSalenum());
        myViewHolder.pricenew.setText("优惠价:￥"+dataBean.getPrice());
    }

    @Override
    public int getItemCount() {
        return list.size();
    }
    class MyViewHolder extends RecyclerView.ViewHolder{

        private final ImageView iv;
        private final TextView title;
        private final TextView pricelow;
        private final TextView pricenew;

        public MyViewHolder(View itemView) {
            super(itemView);
            iv = itemView.findViewById(R.id.rv_item_iv);
            title = itemView.findViewById(R.id.rv_item_tvTitle);
            pricelow = itemView.findViewById(R.id.rv_item_tvPricelow);
            pricelow.getPaint().setFlags(Paint.STRIKE_THRU_TEXT_FLAG);
            pricenew = itemView.findViewById(R.id.rv_item_tvPricenew);
        }
    }
}

public class RegActivity extends AppCompatActivity implements View.OnClickListener,IRegActivity {
    /**
     * 请输入手机号
     */
    private EditText mEditphone;
    /**
     * 请输入密码
     */
    private EditText mEditpwd;
    /**
     * 注册
     */
    private Button mZc;
    private MainPresenter mainPresenter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_reg);
        initView();
        mainPresenter = new MainPresenter(this);
    }

    private void initView() {
        mEditphone = (EditText) findViewById(R.id.editphone);
        mEditpwd = (EditText) findViewById(R.id.editpwd);
        mZc = (Button) findViewById(R.id.zc);
        mZc.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.zc:
                mainPresenter.postReg();
                break;
        }
    }


    @Override
    public String getPhone() {
        return mEditphone.getText().toString().trim();
    }

    @Override
    public String getPwd() {
        return mEditpwd.getText().toString().trim();
    }

    @Override
    public void showErro(Exception e) {
        Toast.makeText(RegActivity.this,e+"", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void goLogin(RegBean regBean) {
        if (regBean.getCode().equals("0")){
            Intent intent = new Intent(RegActivity.this,MainActivity.class);
            startActivity(intent);
        }
        Toast.makeText(RegActivity.this,regBean.getMsg(),Toast.LENGTH_SHORT).show();
    }
}

public class UserActivity extends AppCompatActivity   implements IUserActivity {
    private RecyclerView mRv;
    private MainPresenter mainPresenter;
    private int page = 1;
    private List<GoodsBean.DataBean> list = new ArrayList<>();
    private SwipeRefreshLayout swipeRefreshLayout;
    private MyRVAdapter adapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_user);
        initView();
        mainPresenter = new MainPresenter(this);
        mainPresenter.postGoods(page);
        LinearLayoutManager manager = new LinearLayoutManager(this);
        mRv.setLayoutManager(manager);
        /**
         * 刷新
         */
        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                page =1;
                mainPresenter.postGoods(page);
                swipeRefreshLayout.setRefreshing(false);
                Toast.makeText(UserActivity.this,"数据刷新完成!!!",Toast.LENGTH_SHORT).show();
            }
        });

        /**
         * 加载更多
         */
        mRv.addOnScrollListener(new RecyclerView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                // 这里在加入判断，判断是否滑动到底部
                if (newState == RecyclerView.SCROLL_STATE_IDLE) {
                    LinearLayoutManager lm = (LinearLayoutManager) mRv.getLayoutManager();
                    if (lm.findLastVisibleItemPosition() == list.size() - 1) {
                        List<String> dataNew = new ArrayList<>();
                        page++;
                        mainPresenter.postGoods(page);
                        adapter.notifyDataSetChanged();
                        Toast.makeText(UserActivity.this, "数据加载完成!!!", Toast.LENGTH_SHORT).show();
                    }
                }
            }
            @Override
            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);
            }
        });
    }

    private void initView() {
        mRv = (RecyclerView) findViewById(R.id.rv);
        swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);
    }

    @Override
    public void showErro(Exception e) {
        Toast.makeText(UserActivity.this, e + "", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void showGoods(GoodsBean goodsBean) {
        List<GoodsBean.DataBean> data = goodsBean.getData();
        if (data.size()==0){
            Toast.makeText(UserActivity.this,"没有可以加载的数据了!!!",Toast.LENGTH_SHORT).show();
            return;
        }
        list.addAll(data);
        adapter = new MyRVAdapter(this, list);
        mRv.setAdapter(adapter);
    }
}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="mvpframework.bwie.com.loginregistrectclerview.MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="登陆"
        android:textColor="@android:color/holo_red_dark"
        android:textSize="25sp"
        android:layout_marginTop="20dp"
        android:layout_gravity="center"/>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="50dp"
        android:layout_gravity="center">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="手机号:"
            android:textColor="@android:color/holo_blue_bright"
            android:textSize="16sp"
            android:textStyle="bold"
            />
        <EditText
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:hint="请输入手机号"
            android:id="@+id/editphone"
            />
    </LinearLayout>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="20dp"
        android:layout_gravity="center">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="密码:"
            android:textColor="@android:color/holo_blue_bright"
            android:textSize="16sp"
            android:textStyle="bold"
            />
        <EditText
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:hint="请输入密码"
            android:id="@+id/editpwd"
            />
    </LinearLayout>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="30dp"
        android:layout_gravity="center"
        android:orientation="horizontal">
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="注册"
            android:id="@+id/zc"/>
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="登陆"
            android:id="@+id/login"/>
    </LinearLayout>
</LinearLayout>

reg.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_reg"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
  android:orientation="vertical"
    tools:context="mvpframework.bwie.com.loginregistrectclerview.RegActivity">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="注册"
        android:textColor="@android:color/holo_red_dark"
        android:textSize="25sp"
        android:layout_marginTop="20dp"
        android:layout_gravity="center"/>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="50dp"
        android:layout_gravity="center">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="手机号:"
            android:textColor="@android:color/holo_blue_bright"
            android:textSize="16sp"
            android:textStyle="bold"
            />
        <EditText
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:hint="请输入手机号"
            android:id="@+id/editphone"
            />
    </LinearLayout>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="20dp"
        android:layout_gravity="center">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="密码:"
            android:textColor="@android:color/holo_blue_bright"
            android:textSize="16sp"
            android:textStyle="bold"
            />
        <EditText
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:hint="请输入密码"
            android:id="@+id/editpwd"
            />
    </LinearLayout>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="30dp"
        android:layout_gravity="center"
        android:orientation="horizontal">
        <Button
            android:layout_width="200dp"
            android:layout_height="wrap_content"
            android:text="注册"
            android:id="@+id/zc"/>
    </LinearLayout>
</LinearLayout>

user

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_user"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
  android:orientation="vertical"
    tools:context="mvpframework.bwie.com.loginregistrectclerview.UserActivity">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="商品列表"
        android:textColor="@android:color/holo_red_dark"
        android:textSize="20sp"
        android:layout_gravity="center"/>
    <android.support.v4.widget.SwipeRefreshLayout
        android:layout_weight="1"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        android:id="@+id/swipeRefreshLayout">
        <android.support.v7.widget.RecyclerView
            android:id="@+id/rv"
            android:layout_width="match_parent"
            android:layout_height="match_parent">
        </android.support.v7.widget.RecyclerView>
    </android.support.v4.widget.SwipeRefreshLayout>
</LinearLayout>

rv_item

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="120dp">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:gravity="center">
        <ImageView
            android:id="@+id/rv_item_iv"
            android:layout_width="80dp"
            android:layout_height="80dp"
            android:background="@mipmap/ic_launcher"/>
        <LinearLayout
            android:layout_weight="1"
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="match_parent">
            <TextView
                android:gravity="center_vertical"
                android:id="@+id/rv_item_tvTitle"
                android:layout_weight="1"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:text="我是商品的标题,超过两横,末尾用..."/>
            <TextView
                android:gravity="center_vertical"
                android:id="@+id/rv_item_tvPricelow"
                android:layout_weight="1"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:text="原价:￥199.99"/>
            <TextView
                android:gravity="center_vertical"
                android:id="@+id/rv_item_tvPricenew"
                android:layout_weight="1"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:textColor="#ff3360"
                android:text="优惠价:￥99.99"/>
        </LinearLayout>
    </LinearLayout>
</LinearLayout>

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