BasePresenter.java

/*
 * Copyright 2016. SHENQINCI(沈钦赐)<dev@qinc.me>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package ren.qinc.markdowneditors.base.mvp;

import ren.qinc.markdowneditors.model.DataManager;
import rx.subscriptions.CompositeSubscription;


/**
 * presenter类的父类，提供Presenter接口的实现
 * <p>
 * W * Created by 沈钦赐 on 16/1/17.
 */
public class BasePresenter<T extends IMvpView> implements IPresenter<T> {

    private T mMvpView;

    protected DataManager mDataManager;

    /**
     * 用来保存 每个Presenter的所有订阅（请求），onDestory（detachView）或者subscribe的onCompleted中取消订阅
     * 自己维护生命周期，防止内存泄露
     */
    public CompositeSubscription mCompositeSubscription;


    @Override
    public void attachView(T mvpView) {
        this.mMvpView = mvpView;
        this.mCompositeSubscription = new CompositeSubscription();
        this.mDataManager = DataManager.getInstance();
    }

    @Override
    public void detachView() {
        this.mCompositeSubscription.unsubscribe();
        this.mCompositeSubscription = null;
        this.mMvpView = null;
    }

    public boolean isViewAttached() {
        return mMvpView != null;
    }

    public T getMvpView() {
        return mMvpView;
    }


    protected void callFailure(int errorCode, String message, int flag) {
        if (getMvpView() == null) return;
        getMvpView().onFailure(errorCode, message, flag);
    }

    protected void callShowProgress(String message, boolean canBack, int flag) {
        if (getMvpView() == null) return;
        getMvpView().showWait(message, canBack, flag);
    }

    protected void callHideProgress(int flag) {
        if (getMvpView() == null) return;
        getMvpView().hideWait(flag);
    }

    protected void callOtherSuccess(int flag) {
        if (getMvpView() == null) return;
        getMvpView().otherSuccess(flag);
    }


}