MVP设计模式

多一点真诚，多一点套路，少一点随意   MVP设计模式

Model

package com.test.model;

/**
 * Created by Admin on 2016/9/1.
 */
public class User {//Model，就是数据、模型
    private String name;
    private String password;

    public User(String name,String password){
        this.name = name;
        this.password = password;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPassword() {
        return password;
    }

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

View

package com.test.view;

public interface ILoginView {
    public void onClearText();
    public void onLoginResult(Boolean result, int code);
}

package com.test.view;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.test.mvp.R;
import com.test.presenter.ILoginPresenter;
import com.test.presenter.LoginPresenterCompl;

public class LoginActivity extends AppCompatActivity  implements ILoginView, View.OnClickListener{//V 就是试图，只处理显示

    private Button mLogin;
    private Button mClear;
    private EditText mName;
    private EditText mPassWord;

    ILoginPresenter loginPresenter;


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



        mName = (EditText) findViewById(R.id.name);
        mPassWord = (EditText)findViewById(R.id.pwd);

        mLogin = (Button)findViewById(R.id.login);
        mClear = (Button)findViewById(R.id.clear);

        mLogin.setOnClickListener(this);
        mClear.setOnClickListener(this);

        loginPresenter = new LoginPresenterCompl(this);

    }

    @Override
    public void onClearText() {
        mName.setText("");
        mPassWord.setText("");
        Toast.makeText(this,"Clear "  ,Toast.LENGTH_SHORT).show();

    }

    @Override
    public void onLoginResult(Boolean result, int code) {
            mLogin.setEnabled(true);
        mClear.setEnabled(true);
        if(result){
            Toast.makeText(this,"success "  + code,Toast.LENGTH_SHORT).show();
        }else{
            Toast.makeText(this,"fail "  + code ,Toast.LENGTH_SHORT).show();
        }
    }

    @Override
    public void onClick(View v) {
        String name = mName.getText().toString();
        String pwd  = mPassWord.getText().toString();

        switch (v.getId()){
            case R.id.login :
                loginPresenter.doLogin(name,pwd);
                break;
            case R.id.clear:
                loginPresenter.clear();
                break;
        }
    }
}

处理

package com.test.presenter;

public interface ILoginPresenter {
    public void clear();
    public void doLogin(String name, String password);
}

package com.test.presenter;

import com.test.model.User;
import com.test.view.ILoginView;


/**
 * LoginPresenterCompl处理实现类 实现了ILoginPresenter接口  作为MVP中的P
 * P对应的类中的成员变量分别存在 M（Model）和 V(View的，至少是View的接口)
 */
public class LoginPresenterCompl implements ILoginPresenter {


    private ILoginView loginView; //V(View的接口，用于返回结果的接口，至View的接口)
    private User user;//M（Model）

    public LoginPresenterCompl(ILoginView loginView) {
        this.loginView = loginView;
        user = new User("张三", "1233");
    }

    @Override
    public void clear() {//清除
        loginView.onClearText();
    }

    @Override
    public void doLogin(String name, String password) {//登录
        boolean result = false;
        int code = 0;

        if (name.equals(user.getName()) && password.equals(user.getPassword())) {
            result = true;
            code = 1;
        } else {
            result = false;
            code = 0;
        }

        loginView.onLoginResult(result, code);

    }
}