package com.zz.quicknews.adapter;
import android.content.Context;
import android.graphics.Color;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.style.ForegroundColorSpan;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.android.volley.RequestQueue;
import com.android.volley.toolbox.ImageLoader;
import com.android.volley.toolbox.Volley;
import com.facebook.drawee.view.SimpleDraweeView;
import com.zz.quicknews.util.BitmapCache;
import com.zz.quicknews.R;
import com.zz.quicknews.news.ImageUrl;
import com.zz.quicknews.news.News;
import java.util.ArrayList;
import java.util.List;
/**
* Created by yuchenfw on 2016/6/26.
*/
public class NewsAdapter extends BaseAdapter {
private List<News> mNewsList;
private Context mContext;
private RequestQueue mRequestQueue;
private int mode;
private String keyWords;
private int mStartPosition;
private int mStopPosition;
private int mLastPosition;
private boolean isFirstScroll;
private int mScrollposition;
public void setScrollposition(int scrollposition) {
mScrollposition = scrollposition;
}
public void setScroll(boolean scroll) {
isScroll = scroll;
}
private boolean isScroll;
public void setFirstScroll(boolean firstScroll) {
isFirstScroll = firstScroll;
}
public void setLastPosition(int lastPosition) {
mLastPosition = lastPosition;
}
public void setStartPosition(int startPosition) {
mStartPosition = startPosition;
}
public void setStopPosition(int stopPosition) {
mStopPosition = stopPosition;
}
public NewsAdapter(Context context, List<News> newsList) {
mContext = context;
mNewsList = newsList;
mRequestQueue = Volley.newRequestQueue(mContext);
}
public NewsAdapter(Context context, List<News> newsList, int mode, String keyWords) {
mContext = context;
mNewsList = newsList;
mRequestQueue = Volley.newRequestQueue(mContext);
this.mode = mode;
this.keyWords = keyWords;
}
@Override
public int getCount() {
return mNewsList.size()-1;
}
@Override
public Object getItem(int i) {
return mNewsList.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
ViewHolder viewHolder;
if (view == null) {
view = LayoutInflater.from(mContext).inflate(R.layout.item_news_view, null);
viewHolder = new ViewHolder();
viewHolder.mTvNewsTitle = (TextView) view.findViewById(R.id.tvNewsTitle);
viewHolder.mTvAbstract = (TextView) view.findViewById(R.id.tvAbstract);
viewHolder.mIvImage1 = (SimpleDraweeView) view.findViewById(R.id.ivImage1);
viewHolder.mIvImage2 = (SimpleDraweeView) view.findViewById(R.id.ivImage2);
viewHolder.mIvImage3 = (SimpleDraweeView) view.findViewById(R.id.ivImage3);
viewHolder.mTvSource = (TextView) view.findViewById(R.id.tvSource);
viewHolder.mTvComments = (TextView) view.findViewById(R.id.tvComments);
viewHolder.mTvTime = (TextView) view.findViewById(R.id.tvTime);
view.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) view.getTag();
}
News news = mNewsList.get(i);
if (isScroll) {
setImage(news, viewHolder, true);
} else {
setImage(news, viewHolder, false);
}
/*
* 搜索新闻的关键字标记
* */
if (mode == 1) {
char[] keyWord = keyWords.toCharArray();
SpannableStringBuilder style = new SpannableStringBuilder(news.getTitle());
for (int j = 0; j < keyWord.length; j++) {
int position = news.getTitle().trim().indexOf(keyWord[j]);
if (position != -1) {
style.setSpan(new ForegroundColorSpan(Color.RED), news.getTitle().trim().indexOf(keyWord[j])
, news.getTitle().trim().indexOf(keyWord[j]) + 1, Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
}
}
viewHolder.mTvNewsTitle.setText(style);
} else {
viewHolder.mTvNewsTitle.setText(news.getTitle());
}
// Log.e("QuickNews",news.getTitle());
viewHolder.mTvSource.setText(news.getSource());
viewHolder.mTvComments.setText(" - " + news.getComment_count() + "评论 - ");
viewHolder.mTvTime.setText(news.getDatetime());
return view;
}
/*
* 图片的设置与获取
* */
private void setImage(News news, ViewHolder viewHolder, boolean isScrolled) {
List<ImageUrl> imageUrlList = new ArrayList<>();
imageUrlList = news.getImage_list();
if (imageUrlList != null) {
// Log.d("imageUrlList.size()",imageUrlList.size()+"");
switch (imageUrlList.size()) {
case 0:
if (news.getLarge_image_url() != null) {
viewHolder.mIvImage2.setVisibility(View.GONE);
viewHolder.mIvImage3.setVisibility(View.GONE);
viewHolder.mIvImage1.setVisibility(View.VISIBLE);
// viewHolder.mIvImage1.setVisibility(View.INVISIBLE);
viewHolder.mIvImage1.setAspectRatio(2.0f);
if (!isScrolled) {
viewHolder.mIvImage1.setImageURI(news.getLarge_image_url());
}
} else {
viewHolder.mIvImage1.setVisibility(View.GONE);
viewHolder.mIvImage2.setVisibility(View.GONE);
viewHolder.mIvImage3.setVisibility(View.GONE);
}
break;
case 1:
viewHolder.mIvImage2.setVisibility(View.GONE);
viewHolder.mIvImage3.setVisibility(View.GONE);
viewHolder.mIvImage1.setVisibility(View.VISIBLE);
// viewHolder.mIvImage1.setVisibility(View.INVISIBLE);
viewHolder.mIvImage1.setAspectRatio(2.0f);
if (!isScrolled) {
viewHolder.mIvImage1.setImageURI(imageUrlList.get(0).getUrl());
}
break;
case 2:
viewHolder.mIvImage3.setVisibility(View.GONE);
viewHolder.mIvImage1.setVisibility(View.VISIBLE);
viewHolder.mIvImage2.setVisibility(View.VISIBLE);
viewHolder.mIvImage1.setAspectRatio(1.5f);
viewHolder.mIvImage2.setAspectRatio(1.5f);
if (!isScrolled) {
viewHolder.mIvImage1.setImageURI(imageUrlList.get(0).getUrl());
viewHolder.mIvImage2.setImageURI(imageUrlList.get(1).getUrl());
}
break;
case 3:
viewHolder.mIvImage1.setVisibility(View.VISIBLE);
viewHolder.mIvImage2.setVisibility(View.VISIBLE);
viewHolder.mIvImage3.setVisibility(View.VISIBLE);
viewHolder.mIvImage1.setAspectRatio(1.5f);
viewHolder.mIvImage2.setAspectRatio(1.5f);
viewHolder.mIvImage3.setAspectRatio(1.5f);
if (!isScrolled) {
viewHolder.mIvImage1.setImageURI(imageUrlList.get(0).getUrl());
viewHolder.mIvImage2.setImageURI(imageUrlList.get(1).getUrl());
viewHolder.mIvImage3.setImageURI(imageUrlList.get(2).getUrl());
}
break;
default:
viewHolder.mIvImage1.setVisibility(View.GONE);
viewHolder.mIvImage2.setVisibility(View.GONE);
viewHolder.mIvImage3.setVisibility(View.GONE);
break;
}
} else {
viewHolder.mIvImage1.setVisibility(View.GONE);
viewHolder.mIvImage2.setVisibility(View.GONE);
viewHolder.mIvImage3.setVisibility(View.GONE);
}
// System.out.println("news.getTitle()是"+news.getTitle());
}
public void getImage(ImageView imageView, String url) {
ImageLoader imageLoader = new ImageLoader(mRequestQueue, new BitmapCache());
ImageLoader.ImageListener listener = ImageLoader.getImageListener(imageView,
R.drawable.default_picture, R.drawable.default_picture);
imageLoader.get(url, listener);
}
public void getImage(ImageView imageView, ViewHolder viewHolder, String url, String tag) {
// boolean isTag=false;
if (viewHolder.mIvImage1.getTag() != null && viewHolder.mIvImage1.getTag().equals(tag)) {
ImageLoader imageLoader = new ImageLoader(mRequestQueue, new BitmapCache());
ImageLoader.ImageListener listener = ImageLoader.getImageListener(imageView,
R.drawable.default_picture, R.drawable.default_picture);
imageLoader.get(url, listener);
}
if (viewHolder.mIvImage2.getTag() != null && viewHolder.mIvImage2.getTag().equals(tag)) {
imageView = viewHolder.mIvImage2;
ImageLoader imageLoader = new ImageLoader(mRequestQueue, new BitmapCache());
ImageLoader.ImageListener listener = ImageLoader.getImageListener(imageView,
R.drawable.default_picture, R.drawable.default_picture);
imageLoader.get(url, listener);
}
if (viewHolder.mIvImage3.getTag() != null && viewHolder.mIvImage3.getTag().equals(tag)) {
imageView = viewHolder.mIvImage3;
ImageLoader imageLoader = new ImageLoader(mRequestQueue, new BitmapCache());
ImageLoader.ImageListener listener = ImageLoader.getImageListener(imageView,
R.drawable.default_picture, R.drawable.default_picture);
imageLoader.get(url, listener);
}
}
public static class ViewHolder {
private TextView mTvNewsTitle;
private TextView mTvAbstract;
private SimpleDraweeView mIvImage1;
private SimpleDraweeView mIvImage2;
private SimpleDraweeView mIvImage3;
private TextView mTvSource;
private TextView mTvComments;
private TextView mTvTime;
}
}
