public class HomeMainActivity extends MVPActivity<HomeMainPresenter> {

    // 绑定 Presenter，让Presenter 的 什么周期 和 Activity 一致
    @Override
    protected HomeMainPresenter initPresenter() {
        return new HomeMainPresenter(this);
    }

    // 下面是 分解的 onCreate
    // 设置 Layout
    @Override
    protected int getLayoutId() {
        return R.layout.home_activity_main;
    }

    // 初始化 控件
    @Override
    protected void initViews(@Nullable Bundle savedInstanceState) {
    }

    // 初始化 变量
    @Override
    protected void initVariables(@Nullable Bundle savedInstanceState) {
    }

    // 设置 Listener
    @Override
    protected void initListeners() {
    }

    // 加载数据
    @Override
    protected void loadDate() {
        // 例子
        mPresenter.loadDate("XXXX");
    }

    @Override
    public void showLoading() {
    }

    @Override
    public void hideLoading() {
    }

    public void updateUi(){
        // .....
    }
}

public class HomeMainPresenter extends MVPPresenter<HomeMainActivity, HomeMainModel> {

    // 构造器 并且绑定 View 层
    public HomeMainPresenter(HomeMainActivity mvpView) {
        super(mvpView);
    }

    // 绑定 Model 层
    @Override
    public HomeMainModel initModel() {
        return new HomeMainModel(this);
    }

    // 例子加载数据
    public void loadData(String string) {
        mView.showLoading();

        if (TextUtils.isEmpty(String)){
            mView.hideLoading();
            mView.showToast("获取数据失败");
            mView.updateUi("error");
            return;
        }

        mModel.getNetworkDataInfo(new HttpCallback() {
            @Override
            public void onSuccess(Object obj) {
                mView.hideLoading();
                mView.showToast("加载完成");
                mView.updateUi(obj.toString());
            }

            @Override
            public void onFail(HttpError httpError) {
                mView.hideLoading();
                mView.showToast("获取数据失败");
                mView.updateUi("error");
            }
        });
    }

}

public class HomeMainModel extends MVPModel<HomeMainPresenter> {

    // 构造器 并且绑定 View 层
    public HomeMainModel(HomeMainPresenter mvpPresenter) {
        super(mvpPresenter);
    }

    // 例子
    public void getNetworkDataInfo(final HttpCallback<WeatherInfo> callback) {
        // 规定时间内重复求请，直接读取本地缓存数据
        if (System.currentTimeMillis() - SharedPreferencesUtil.getLong(Constants.KEY_UPDATE_TIME) < Constants.CACHE_TIME) {
            Object obj = CacheUtils.getData();
            // 返回数据
            callback.onSuccess(obj);
        } else {
            HomeApiStore.getNetworkData(new HttpCallback<WeatherInfo>() {
                @Override
                public void onSuccess(Object object) {
                    // 数据获取成功后 保存一份本地缓存
                    CacheUtils.saveData(object);
                    // 返回数据
                    callback.onSuccess(object);
                }

                @Override
                public void onFail(HttpError httpError) {
                    callback.onFail(httpError);
                }
            });

        }
    }

}