MVP目录结构
-
基础模块
基础模块
项目目前主要分为4个模块，fjslibrary主要是公共类库，fjstest是用于自动化测试代码，mainmodule为主模块，app为项目壳工程。
-
fjslibrary模块
图片.png
主要是MVP的基础模块
-
mainmodule
图片.png
实际使用的MVP示例。
fjslibrary模块BaseMVP源码
- IBaseView
package com.yds.jianshu.base.mvp;
import android.content.Context;
/**
* Created by yds
* on 2019/8/3.
*/
public interface IBaseView {
Context getContext();
}
- IBasePresenter
package com.yds.jianshu.base.mvp;
/**
* Created by yds
* on 2019/8/29.
*/
public interface IBasePresenter {
/**
* used to attach the real View
* @param view
*/
void attach(V view);
/**
* used to detach the real View
*/
void detach();
}
这里使用泛型，V代码继承自IBaseView的View类型，attach主要用于与View绑定，detach用于与View解绑，传统View是在presenter初始化时初始一个对应的View，但这样view就会和Presenter耦合，使用泛型能使得view和presenter耦合度降低，且利于重用。
- BaseModel
package com.yds.jianshu.base.mvp;
/**
* Created by yds
* on 2019/8/29.
*/
public abstract class BaseModel {
}
- BasePresenter
package com.yds.jianshu.base.mvp;
/**
* Created by yds
* on 2019/8/29.
*/
public abstract class BasePresenter implements IBasePresenter{
protected V mView;
@SuppressWarnings("unchecked")
@Override
public void attach(IBaseView view) {
mView = (V) view;
}
@Override
public void detach() {
mView = null;
}
}
写一个BasePresenter抽象类，该类实现了IBasePresenter接口，声明一个View，并在attach时绑定，在detach时释放。
- BaseActivity
package com.yds.jianshu.base.mvp;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.Nullable;
/**
* Created by yds
* on 2019/8/3.
*/
public abstract class BaseActivity extends Activity implements IBaseView{
protected P mPresenter;
protected abstract void initLayout(@Nullable Bundle savedInstanceState);
protected abstract void initViews();
protected abstract void initEvents();
protected abstract P setPresenter();
@Override
protected void onCreate(@Nullable Bundle saveInstanceState){
super.onCreate(saveInstanceState);
initLayout(saveInstanceState);
mPresenter = setPresenter();
if(mPresenter!=null){
mPresenter.attach(this);
}
initViews();
initEvents();
}
@Override
protected void onDestroy() {
super.onDestroy();
mPresenter.detach();
mPresenter = null;
}
@Override
public Context getContext() {
return this;
}
}
MVP的View指的是Activity及Fragment等，创建一个BaseActivity，并在BaseActivity中初始化一个Presenter，并与BaseActivity绑定
mainmodule中使用
package com.yds.mainmodule.mobile.contract;
import com.yds.jianshu.base.mvp.IBasePresenter;
import com.yds.jianshu.base.mvp.IBaseView;
/**
* Created by yds
* on 2019/8/29.
*/
public interface MainContract {
interface IMainModel{
}
interface IMainView extends IBaseView{
}
interface IMainPresenter extends IBasePresenter{
}
}
创建一个MainContract接口，该接口中声明了MainMVP中所需要的model、view以及presenter，一目了然。
- MainModel
package com.yds.mainmodule.mobile.models;
import com.yds.jianshu.base.mvp.BaseModel;
import com.yds.mainmodule.mobile.contract.MainContract;
/**
* Created by yds
* on 2019/8/29.
*/
public class MainModel extends BaseModel implements MainContract.IMainModel {
}
可以在MainModel中做一些网络请求，数据处理等操作。
- MainPresenter
package com.yds.mainmodule.mobile.presenters;
import com.yds.jianshu.base.mvp.BasePresenter;
import com.yds.jianshu.base.mvp.IBaseView;
import com.yds.mainmodule.mobile.contract.MainContract;
/**
* Created by yds
* on 2019/8/29.
*/
public class MainPresenter extends BasePresenter implements MainContract.IMainPresenter {
private MainContract.IMainModel mModel;
@Override
public void attach(IBaseView view) {
super.attach(view);
}
@Override
public void detach() {
super.detach();
}
}
可以在MainPresenter 中做一些数据逻辑等操作，处理model传递来的数据并将数据返回给view层。
- MainActivity
package com.yds.mainmodule.mobile.views;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import com.yds.jianshu.base.mvp.BaseActivity;
import com.yds.mainmodule.R;
import com.yds.mainmodule.mobile.contract.MainContract;
import com.yds.mainmodule.mobile.presenters.MainPresenter;
import com.yds.mainmodule.onepixel.OnePixelService;
public class MainActivity extends BaseActivity implements MainContract.IMainView{
private static final String TAG = "[MainActivity]";
@Override
protected void initLayout(@Nullable Bundle savedInstanceState) {
setContentView(R.layout.activity_main);
}
@Override
protected void initViews() {
}
@Override
protected void initEvents() {
startOnePixelService();
}
@Override
protected MainContract.IMainPresenter setPresenter() {
return new MainPresenter();
}
private void startOnePixelService(){
Intent intent = new Intent();
intent.setClass(MainActivity.this, OnePixelService.class);
startService(intent);
}
@Override
protected void onDestroy() {
super.onDestroy();
}
}
MainActivity即View层，在这里不用再对Presenter进行初始化即绑定，实现setPresenter方法即可，其初始化及绑定被封装在BaseActivity中。
源码地址
源码：https://github.com/Yedongsheng/Jianshu/tree/develop