mvp的基本登录（简单实现）

View包中

package view;/** * Created by lenovo on 2017/11/1. */public interface IUserView {    /**     * 登录成功     */    void onLoginSuccess();    /**     * 登录失败     *     * @param error     */    void onLoginFailed(String error);}

model包中(两个类，IUserMode ，UserMode)

package model;import bean.User;/** * Created by lenovo on 2017/11/1. */public interface IUserMode {    /**     * 登录     *     * @param user     * @return 约定返回"true"为登录成功，其他为登录失败的错误信息     */    String login(User user);}

package model;import java.io.IOException;import java.util.HashMap;import bean.API;import bean.User;import bean.UserBean;import okhttp3.Call;import utils.GsonObjectCallback;import utils.OkHttp3Utils;import view.IUserView;/** * Created by lenovo on 2017/11/1. */public class UserMode implements IUserMode{    private String code;    @Override    public String login(User user) {        HashMap<String,String> map=new HashMap<>();        map.put("mobile",user.getUsername());        map.put("password",user.getPassword());        OkHttp3Utils.getInstance().doPost(API.LOGIN, map, new GsonObjectCallback<UserBean>() {            @Override            public void onUi(UserBean userBean) {                code = userBean.getCode();            }            @Override            public void onFailed(Call call, IOException e) {            }        });       /* boolean networkError = false; //网络是否异常        try {            Thread.sleep(3000);//模拟网络连接            if (networkError) {                return "网络异常";            } else if ("ethanco".equals(user.getUsername()) && "123456".equals(user.getPassword())) {                return "true";            } else {                return "账号或密码错误";            }        } catch (InterruptedException e) {            e.printStackTrace();            return e.getMessage();        }*/        return code;    }}

presenter包中

package presenter;import android.os.Handler;import android.os.Looper;import bean.User;import model.UserMode;import view.IUserView;/** * Created by lenovo on 2017/11/1. */public class UserPresenter {    private final IUserView userView;    private final UserMode userMode;    public UserPresenter(IUserView userView) {        this.userView = userView;        this.userMode = new UserMode();    }    /**     * 登录     *     * @param user     */    public void login(final User user) {       /* new Thread() {            @Override            public void run() {                final String res = userMode.login(user);                new Handler(Looper.getMainLooper()).post(new Runnable() {                    @Override                    public void run() {                        if ("true".equals(res)) {                            userView.onLoginSuccess();                        } else {                            userView.onLoginFailed(res);                        }                    }                });            }        }.start();*/        final String res = userMode.login(user);        if ("0".equals(res)) {            userView.onLoginSuccess();        } else {            userView.onLoginFailed(res);        }    }}

bean包中

package bean;/** * Created by lenovo on 2017/11/1. */public class User {（自己写）    public User(String username, String password) {        this.username = username;        this.password = password;    }    public String getUsername() {        return username;    }    public void setUsername(String username) {        this.username = username;    }    public String getPassword() {        return password;    }    public void setPassword(String password) {        this.password = password;    }    private String username;    private String password;}
package bean;/** * Created by lenovo on 2017/11/1. */public class UserBean {（网络请求）    /**     * msg : 登录成功     * code : 0     * data : {"age":null,"appkey":null,"appsecret":null,"createtime":"2017-10-19T21:09:31","email":null,"gender":0,"icon":null,"mobile":"18401213718","money":0,"nickname":null,"password":"123456","token":null,"uid":1000,"username":"18401213718"}     */    private String msg;    private String code;    private DataBean data;    public String getMsg() {        return msg;    }    public void setMsg(String msg) {        this.msg = msg;    }    public String getCode() {        return code;    }    public void setCode(String code) {        this.code = code;    }    public DataBean getData() {        return data;    }    public void setData(DataBean data) {        this.data = data;    }    public static class DataBean {        /**         * age : null         * appkey : null         * appsecret : null         * createtime : 2017-10-19T21:09:31         * email : null         * gender : 0         * icon : null         * mobile : [phone]         * money : 0         * nickname : null         * password : 123456         * token : null         * uid : 1000         * username : 18401213718         */        private Object age;        private Object appkey;        private Object appsecret;        private String createtime;        private Object email;        private int gender;        private Object icon;        private String mobile;        private int money;        private Object nickname;        private String password;        private Object token;        private int uid;        private String username;        public Object getAge() {            return age;        }        public void setAge(Object age) {            this.age = age;        }        public Object getAppkey() {            return appkey;        }        public void setAppkey(Object appkey) {            this.appkey = appkey;        }        public Object getAppsecret() {            return appsecret;        }        public void setAppsecret(Object appsecret) {            this.appsecret = appsecret;        }        public String getCreatetime() {            return createtime;        }        public void setCreatetime(String createtime) {            this.createtime = createtime;        }        public Object getEmail() {            return email;        }        public void setEmail(Object email) {            this.email = email;        }        public int getGender() {            return gender;        }        public void setGender(int gender) {            this.gender = gender;        }        public Object getIcon() {            return icon;        }        public void setIcon(Object icon) {            this.icon = icon;        }        public String getMobile() {            return mobile;        }        public void setMobile(String mobile) {            this.mobile = mobile;        }        public int getMoney() {            return money;        }        public void setMoney(int money) {            this.money = money;        }        public Object getNickname() {            return nickname;        }        public void setNickname(Object nickname) {            this.nickname = nickname;        }        public String getPassword() {            return password;        }        public void setPassword(String password) {            this.password = password;        }        public Object getToken() {            return token;        }        public void setToken(Object token) {            this.token = token;        }        public int getUid() {            return uid;        }        public void setUid(int uid) {            this.uid = uid;        }        public String getUsername() {            return username;        }        public void setUsername(String username) {            this.username = username;        }    }}

MainActivity中

package com.bwie.mvp;import android.app.ProgressDialog;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.text.TextUtils;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;import bean.User;import presenter.UserPresenter;import view.IUserView;public class MainActivity extends AppCompatActivity implements IUserView,View.OnClickListener{    private EditText username,password;    private Button button;    private UserPresenter userPresenter;    private ProgressDialog loginProgreess;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main); username= (EditText) findViewById(R.id.username);        password= (EditText) findViewById(R.id.password);        button= (Button) findViewById(R.id.login);        button.setOnClickListener(this);        userPresenter = new UserPresenter(this);    }    @Override    public void onClick(View view) {        String user = username.getText().toString().trim();        String pass= password.getText().toString().trim();        if (TextUtils.isEmpty(user) || TextUtils.isEmpty(pass)) {            Toast.makeText(getApplicationContext(), "账号或密码不能为空", Toast.LENGTH_SHORT).show();            return;        }        loginProgreess = ProgressDialog.show(this, "登录", "正在登录...");        userPresenter.login(new User(user, pass));    }    @Override    public void onLoginSuccess() {        loginProgreess.dismiss();        Toast.makeText(getApplicationContext(), "登录成功", Toast.LENGTH_SHORT).show();    }    @Override    public void onLoginFailed(String error) {        loginProgreess.dismiss();        Toast.makeText(getApplicationContext(), "登录失败:" + error, Toast.LENGTH_SHORT).show();    }}

activity_main中

<?xml version="1.0" encoding="utf-8"?><RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="com.bwie.mvp.MainActivity">    <EditText        android:id="@+id/username"        android:layout_width="400dp"        android:layout_height="wrap_content" />   <EditText       android:id="@+id/password"       android:layout_below="@id/username"       android:layout_width="400dp"       android:layout_height="wrap_content" />    <Button        android:id="@+id/login"        android:text="登录"        android:layout_below="@id/password"        android:layout_width="wrap_content"        android:layout_height="wrap_content" /></RelativeLayout>