/*
* Copyright 2015 TedXiong <xiong-wei@hotmail.com>
*
* 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 com.android.ted.gank.main;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.v4.app.ActivityOptionsCompat;
import android.support.v4.app.Fragment;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.widget.Toast;
import com.android.ted.gank.R;
import com.android.ted.gank.adapter.BenefitGoodsItemAdapter;
import com.android.ted.gank.db.Image;
import com.android.ted.gank.model.Goods;
import com.android.ted.gank.model.GoodsResult;
import com.android.ted.gank.network.GankCloudApi;
import com.android.ted.gank.service.ImageImproveService;
import com.malinskiy.materialicons.IconDrawable;
import com.malinskiy.materialicons.Iconify;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import butterknife.Bind;
import butterknife.ButterKnife;
import io.realm.Realm;
import io.realm.RealmChangeListener;
import io.realm.RealmResults;
import retrofit.RetrofitError;
import rx.Observer;
import rx.android.schedulers.AndroidSchedulers;
import rx.schedulers.Schedulers;
public class BenefitListFragment extends BaseLoadingFragment implements SwipeRefreshLayout.OnRefreshListener,
RealmChangeListener {
@Bind(R.id.benefit_recycler_view)
RecyclerView mRecyclerView;
@Bind(R.id.benefit_swipe_refresh)
SwipeRefreshLayout mSwipeRefreshLayout;
private ArrayList<Image> mAllBenefitImage;
private BenefitGoodsItemAdapter mBenefitItemAdapter;
private UpdateResultReceiver updateResultReceiver = new UpdateResultReceiver();
private Realm mRealm;
private StaggeredGridLayoutManager mStaggeredGridLayoutManager;
//是否正在更新图片信息
private boolean bImproveDoing = false;
private boolean isALlLoad = false;
private int hasLoadPage = 0;
private boolean isLoadMore = false;
private Observer<GoodsResult> getBenefitGoodsObserver = new Observer<GoodsResult>() {
@Override
public void onNext(final GoodsResult goodsResult) {
if(mAllBenefitImage.isEmpty() && goodsResult.getResults().isEmpty()){
showNoDataView();
return;
}
showContent();
if(goodsResult.getResults().size() == GankCloudApi.LOAD_LIMIT){
hasLoadPage++;
}else {
isALlLoad = true;
}
if (analysisNewImage(goodsResult))
doImproveJob();
else refreshBenefitGoods();
}
@Override
public void onCompleted() {
isLoadMore = false;
mSwipeRefreshLayout.setRefreshing(false);
}
@Override
public void onError(final Throwable error) {
if (error instanceof RetrofitError) {
Drawable errorDrawable = new IconDrawable(getContext(), Iconify.IconValue.zmdi_network_off)
.colorRes(android.R.color.white);
RetrofitError e = (RetrofitError) error;
if (e.getKind() == RetrofitError.Kind.NETWORK) {
showError(errorDrawable,"网络异常","好像您的网络出了点问题","重试",mErrorRetryListener);
} else if (e.getKind() == RetrofitError.Kind.HTTP) {
showError(errorDrawable,"服务异常","好像服务器出了点问题","再试一次",mErrorRetryListener);
} else {
showError(errorDrawable,"莫名异常","外星人进攻地球了？","反击",mErrorRetryListener);
}
}
}
};
private View.OnClickListener mErrorRetryListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
reloadData();
}
};
@Override
public void onRefresh() {
reloadData();
}
@Override
public void onChange() {
if(!bImproveDoing)return;
if(!this.isVisible())return;
refreshBenefitGoods();
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mAllBenefitImage = new ArrayList<>();
mBenefitItemAdapter = new BenefitGoodsItemAdapter(getActivity()) {
@Override
protected void onItemClick(View v, int position) {
startViewerActivity(v,position);
}
};
mRealm = Realm.getInstance(getActivity());
mRealm.addChangeListener(this);
}
@Override
View onCreateContentView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_benifit_list,null);
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
ButterKnife.bind(this, view);
setupBaseView();
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
refreshBenefitGoods();
reloadData();
}
@Override
public void onResume() {
super.onResume();
getActivity().registerReceiver(updateResultReceiver,
new IntentFilter(ImageImproveService.ACTION_UPDATE_RESULT),
ImageImproveService.PERMISSION_ACCESS_UPDATE_RESULT, null);
}
@Override
public void onPause() {
super.onPause();
getActivity().unregisterReceiver(updateResultReceiver);
}
@Override
public void onDestroy() {
super.onDestroy();
mRealm.removeChangeListener(this);
mRealm.close();
}
private void refreshBenefitGoods(){
mAllBenefitImage.clear();
RealmResults<Image> results = mRealm.where(Image.class).notEqualTo("width",0).findAll();
mAllBenefitImage.addAll(results);
mBenefitItemAdapter.replaceWith(mAllBenefitImage);
}
private void setupBaseView() {
mSwipeRefreshLayout.setColorSchemeColors(R.color.colorPrimary, R.color.colorPrimaryDark);
mSwipeRefreshLayout.setOnRefreshListener(this);
mStaggeredGridLayoutManager = new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL);
mRecyclerView.setLayoutManager(mStaggeredGridLayoutManager);
mRecyclerView.setAdapter(mBenefitItemAdapter);
mRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
super.onScrollStateChanged(recyclerView, newState);
if (newState == RecyclerView.SCROLL_STATE_IDLE) {
BenefitListFragment.this.onScrollStateChanged();
}
}
});
}
private void onScrollStateChanged(){
int[] positions = new int[mStaggeredGridLayoutManager.getSpanCount()];
mStaggeredGridLayoutManager.findLastVisibleItemPositions(positions);
for (int position : positions) {
if (position == mStaggeredGridLayoutManager.getItemCount() - 1) {
loadMore();
break;
}
}
}
private void loadMore(){
if(isALlLoad){
Toast.makeText(getActivity(), "全部加载完毕", Toast.LENGTH_SHORT).show();
return;
}
if(isLoadMore)return;
isLoadMore = true;
loadData(hasLoadPage + 1);
}
private void reloadData(){
mSwipeRefreshLayout.setRefreshing(true);
mAllBenefitImage.clear();
isALlLoad = false;
hasLoadPage = 0;
loadData(1);
}
private void loadData(int startPage){
GankCloudApi.getIns()
.getBenefitsGoods(GankCloudApi.LOAD_LIMIT, startPage)
.cache()
.subscribeOn(Schedulers.newThread())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(getBenefitGoodsObserver);
}
/***
* 分析新的数据
*
* @param goodsResult
* @return 是否有新数据插入
*/
private boolean analysisNewImage(final GoodsResult goodsResult) {
mRealm.beginTransaction();
if (null != goodsResult && null != goodsResult.getResults()) {
for (Goods goods : goodsResult.getResults()) {
Image image = Image.queryImageById(mRealm, goods.get_id());
if(null == image)image = mRealm.createObject(Image.class);
Image.updateDbGoods(image,goods);
}
mRealm.commitTransaction();
return true;
}
mRealm.cancelTransaction();
return false;
}
private void doImproveJob() {
bImproveDoing = true;
Intent intent = new Intent(getActivity(), ImageImproveService.class);
intent.setAction(ImageImproveService.ACTION_IMPROVE_IMAGE);
getActivity().startService(intent);
}
private void showNoDataView(){
Drawable emptyDrawable = new IconDrawable(getContext(), Iconify.IconValue.zmdi_shopping_cart)
.colorRes(android.R.color.white);
List<Integer> skipIds = new ArrayList<>();
showEmpty(emptyDrawable, "数据列表为空", "没有拿到数据哎，请等一下再来玩妹子吧", skipIds);
}
private void startViewerActivity(View itemView, int position) {
Intent intent = new Intent(getActivity(), ViewerActivity.class);
intent.putExtra("index", position);
// ActivityOptionsCompat options = ActivityOptionsCompat
// .makeSceneTransitionAnimation(getActivity(), itemView, mBenefitItemAdapter.get(position).getUrl());
getActivity().startActivity(intent);
}
private class UpdateResultReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
bImproveDoing = false;
int count = intent.getIntExtra(ImageImproveService.EXTRA_CHANGE, 0);
if(count > 0)
refreshBenefitGoods();
}
}
// public Map<String, View> getActivitySharedElements(int position,Map<String,View> map){
// map.put(mBenefitItemAdapter.get(position).getUrl(),mStaggeredGridLayoutManager.findViewByPosition(position));
// return map;
// }
//
// public void onActivityReenter(Bundle bundle){
// mRecyclerView.scrollToPosition(bundle.getInt("index", 0));
// mRecyclerView.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
// @Override
// public boolean onPreDraw() {
// mRecyclerView.getViewTreeObserver().removeOnPreDrawListener(this);
// mRecyclerView.requestLayout();
// getActivity().supportStartPostponedEnterTransition();
// return true;
// }
// });
// }
}