android mvp设计模式

新建LoginInfo类

public class LoginInfo {
    private String loginName;

    public String getLoginName() {
        return loginName;
    }

    public void setLoginName(String loginName) {
        this.loginName = loginName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    private String password;
}

新建IUserBiz登录接口

public interface IUserBiz {
    void login(String username, String password, OnLoginListener loginListener);
}

新建OnLoginListener接口

public interface OnLoginListener {
    void loginSuccess(LoginInfo loginInfo);

    void loginFailed();
}

新建IUserLoginView接口

public interface IUserLoginView {
    String getLoginName();
    String getPassword();
    void showSuccess();
    void showFailedError();
}

新增UserBiz类

public class UserBiz implements IUserBiz {
    @Override
    public void login(final String loginName, final String password, final OnLoginListener loginListener) {
        new Thread() {
            @Override
            public void run() {
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                if ("123".equals(loginName) && "123".equals(password)) {
                    LoginInfo user = new LoginInfo();
                    user.setLoginName(loginName);
                    user.setPassword(password);
                    loginListener.loginSuccess(user);
                } else {
                    loginListener.loginFailed();
                }
            }
        }.start();
    }
}

新增UserLoginPresenter类

public class UserLoginPresenter {
    private IUserBiz userBiz;
    private IUserLoginView userLoginView;
    private Handler handler = new Handler();
    public UserLoginPresenter(IUserLoginView userLoginView)
    {
        this.userLoginView = userLoginView;
        this.userBiz = new UserBiz();
    }
    public void login(){
        userBiz.login(userLoginView.getLoginName(), userLoginView.getPassword(), new OnLoginListener() {
            @Override
            public void loginSuccess(LoginInfo loginInfo) {
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        userLoginView.showSuccess();
                    }
                });
            }

            @Override
            public void loginFailed() {
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        userLoginView.showFailedError();
                    }
                });

            }
        });
    }
}

新增UserLoginActivity

public class UserLoginActivity extends AppCompatActivity implements IUserLoginView {
    EditText dtLoginName, dtPassword;
    Button btnLogin;
    UserLoginPresenter userLoginPresenter = new UserLoginPresenter(this);

    @Override
    public String getLoginName() {
        return dtLoginName.getText().toString();
    }

    @Override
    public String getPassword() {
        return dtPassword.getText().toString();
    }

    @Override
    public void showSuccess() {
        Toast.makeText(this, "成功", Toast.LENGTH_LONG).show();
    }

    @Override
    public void showFailedError() {
        Toast.makeText(this, "失败", Toast.LENGTH_LONG).show();
    }

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        dtLoginName = (EditText) findViewById(R.id.loginName);
        dtPassword = (EditText) findViewById(R.id.password);
        btnLogin = (Button) findViewById(R.id.btnLogin);
        btnLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                userLoginPresenter.login();
            }
        });
    }
}

 完整demo