Android封装MVP实现登录注册功能

本文实例为大家分享了Android封装MVP实现登录注册功能，供大家参考，具体内容如下

model包：

import com.bwei.mvps.bean.UserBean;

/**
* 1. 类的用途
* 2. @author forever
* 3. @date 2017/9/1 16:00
*/

public interface IUserModel {
void setFirstName(String firstName);

void setLastName(String lastName);

String getFirstName();

String getLastName();

//根据id获取对象
UserBean load(int id);
}

import android.util.Log;

import com.bwei.mvps.bean.UserBean;

/**
* 1. 类的用途
* 2. @author forever
* 3. @date 2017/9/1 16:04
*/

public class UserModel implements IUserModel {
@Override
public void setFirstName(String firstName) {
Log.i("xxx", firstName);
}

@Override
public void setLastName(String lastName) {
Log.i("xxx", lastName);

}

@Override
public String getFirstName() {
return null;
}

@Override
public String getLastName() {
return null;
}

@Override
public UserBean load(int id) {
//查询数据库或联网获取数据
Log.i("fff", id + "");

return new UserBean("张", "三");
}
}

View包

/**
* 1. 类的用途
* 2. @author forever
* 3. @date 2017/9/1 15:53
*/

public interface UserView {
void setFirstName(String firstName);

void setLastName(String lastName);

int getId();

String getFirstName();

String getLastName();
}

presenter包：

import android.util.Log;

import com.bwei.mvps.MainActivity;
import com.bwei.mvps.bean.UserBean;
import com.bwei.mvps.model.IUserModel;
import com.bwei.mvps.model.UserModel;
import com.bwei.mvps.view.UserView;

/**
* 1. 类的用途
* 2. @author forever
* 3. @date 2017/9/1 16:05
*/

public class UserPresenter {

private UserView userview;
private final IUserModel iUserModel;

public UserPresenter(UserView userview) {
this.userview = userview;
iUserModel = new UserModel();

}

//保存数据
public void saveUser(int id, String firstName, String lastName) {
UserBean userBean = iUserModel.load(id);
Log.i("sss", "id:" + id + ",firstName:" + firstName + ",lastName:" + lastName);

}

//查询数据
public void find(int id) {
UserBean userBean = iUserModel.load(id);
String firstName = userBean.getFirstName();
String lastName = userBean.getLastName();
userview.setFirstName(firstName);
userview.setLastName(lastName);

Log.i("aaa", "id:" + id + ",firstName:" + firstName + ",lastName:" + lastName);

}
}

XML

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout

xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">

<TextView
 android:layout_width="70dp"
 android:layout_height="wrap_content"
 android:text="ID"/>

<EditText
 android:id="@+id/et_id"
 android:layout_width="0dp"
 android:layout_height="wrap_content"
 android:layout_weight="1"/>
</LinearLayout>

<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">

<TextView
 android:layout_width="70dp"
 android:layout_height="wrap_content"
 android:text="FirstName"/>

<EditText
 android:id="@+id/et_first_name"
 android:layout_width="0dp"
 android:layout_height="wrap_content"
 android:layout_weight="1"/>
</LinearLayout>

<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">

<TextView
 android:layout_width="70dp"
 android:layout_height="wrap_content"
 android:text="LastName"/>

<EditText
 android:id="@+id/et_last_name"
 android:layout_width="0dp"
 android:layout_height="wrap_content"
 android:layout_weight="1"/>
</LinearLayout>

<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">

<Button
 android:id="@+id/bt_register"
 android:layout_width="0dp"
 android:layout_height="wrap_content"
 android:layout_weight="1"
 android:text="注册"/>

<Button
 android:id="@+id/bt_login"
 android:layout_width="0dp"
 android:layout_height="wrap_content"
 android:layout_weight="1"
 android:text="登录"/>
</LinearLayout>
</LinearLayout>

Mactivity

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

import com.bwei.mvps.presenter.UserPresenter;
import com.bwei.mvps.view.UserView;

public class MainActivity extends AppCompatActivity implements View.OnClickListener, UserView {

private EditText et_id;
private EditText et_first_name;
private EditText et_last_name;
private Button bt_login;
private Button bt_register;
private UserPresenter userPresenter;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//找控件
et_id = (EditText) findViewById(R.id.et_id);
et_first_name = (EditText) findViewById(R.id.et_first_name);
et_last_name = (EditText) findViewById(R.id.et_last_name);
bt_login = (Button) findViewById(R.id.bt_login);
bt_register = (Button) findViewById(R.id.bt_register);
bt_login.setOnClickListener(this);
bt_register.setOnClickListener(this);
//声明UserPresenter
userPresenter = new UserPresenter(this);

}

@Override
public void onClick(View view) {
switch (view.getId()) {
 case R.id.bt_register://保存数据
 userPresenter.saveUser(getId(), getFirstName(), getLastName());
 break;
 case R.id.bt_login:
 userPresenter.find(getId());
 break;
}
}

@Override
public void setFirstName(String firstName) {
et_first_name.setText(firstName);
}

@Override
public void setLastName(String lastName) {
et_last_name.setText(lastName);
}

@Override
public int getId() {
return new Integer(et_id.getText().toString());
}

@Override
public String getFirstName() {
return et_first_name.getText().toString();
}

@Override
public String getLastName() {
return et_last_name.getText().toString();
}
}

来源：http://blog.csdn.net/qq_38259132/article/details/78243760