package com.athena.asm.Adapter;
import java.util.ArrayList;
import java.util.List;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.text.Html;
import android.text.method.LinkMovementMethod;
import android.text.util.Linkify;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
import android.widget.RelativeLayout;
import android.widget.SectionIndexer;
import android.widget.TextView;
import com.athena.asm.R;
import com.athena.asm.aSMApplication;
import com.athena.asm.data.Attachment;
import com.athena.asm.data.Post;
import com.athena.asm.fragment.PostListFragment;
import com.athena.asm.util.StringUtility;
import com.athena.asm.view.GifWebView;
import com.athena.asm.view.LinkTextView;
import com.koushikdutta.urlimageviewhelper.UrlImageViewHelper;
public class PostListAdapter extends BaseAdapter implements OnClickListener, SectionIndexer{
private PostListFragment m_fragment;
private LayoutInflater m_inflater;
private List<Post> m_postList;
private String[] sections;
// http://developer.android.com/training/improving-layouts/smooth-scrolling.html
// use ViewHolder pattern
public class ViewHolder {
public TextView authorTextView;
public TextView indexTextView;
public TextView titleTextView;
public View lineView;
public LinkTextView contentTextView;
public TextView attachTextView;
public LinearLayout imageLayout;
public TextView dateTextView;
public Post post;
}
public PostListAdapter(PostListFragment fragment, LayoutInflater inflater,
List<Post> postList) {
this.m_fragment = fragment;
this.m_inflater = inflater;
this.m_postList = postList;
updateIndexer();
// set parameters for UrlImageViewHelper
// set threshold for max image size
UrlImageViewHelper.setMaxImageSize(getMaxImageSize());
UrlImageViewHelper.setUseZoomOut(true); // always enable zoom out
// set error resource, this resource will be used when failed to load image
if (aSMApplication.getCurrentApplication().isNightTheme()) {
UrlImageViewHelper.setErrorResource(R.drawable.failure_night);
} else {
UrlImageViewHelper.setErrorResource(R.drawable.failure_day);
}
}
public void updateIndexer()
{
// prepare indexer for posts
ArrayList<String> _sections = new ArrayList<String>();
for (int i = 0; i < m_postList.size(); i++)
{
String index = m_postList.get(i).getPostIndex();
if(index != null)
{
if(index.endsWith("楼"))
index = index.substring(0, index.length()-1);
_sections.add(index);
}
}
sections = _sections.toArray(new String[_sections.size()]);
// force system to call getSections() again
m_fragment.getListView().setFastScrollEnabled(false);
m_fragment.getListView().setFastScrollEnabled(true);
m_fragment.getListView().setFastScrollAlwaysVisible(true);
}
// image size > threshold won't be loaded in 2G/3G
private int getMaxImageSize() {
boolean isAutoOptimize = aSMApplication.getCurrentApplication().isAutoOptimize();
// 非自动优化
if( !isAutoOptimize )
return 0;
Context context = aSMApplication.getCurrentApplication().getApplicationContext();
ConnectivityManager connectionManager =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connectionManager.getActiveNetworkInfo();
if (networkInfo == null)
// no active network connection
return 0;
int netType = networkInfo.getType();
// WIFI下全部下载
if (netType == ConnectivityManager.TYPE_WIFI) {
return 0;
}
// 自动优化且在移动网络中，返回阈值
float threshold = aSMApplication.getCurrentApplication().getImageSizeThreshold();
return (int)threshold * 1024;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
RelativeLayout layout = null;
Post post = m_postList.get(position);
if (convertView == null) {
layout = (RelativeLayout) m_inflater.inflate(R.layout.post_list_item, null);
holder = new ViewHolder();
holder.authorTextView = (TextView) layout.findViewById(R.id.AuthorID);
holder.indexTextView = (TextView) layout.findViewById(R.id.PostIndex);
holder.titleTextView = (TextView) layout.findViewById(R.id.PostTitle);
holder.lineView = (View) layout.findViewById(R.id.SeperatorView);
holder.contentTextView = (LinkTextView) layout.findViewById(R.id.PostContent);
holder.attachTextView = (TextView) layout.findViewById(R.id.PostAttach);
holder.imageLayout = (LinearLayout) layout.findViewById(R.id.imageLayout);
holder.dateTextView = (TextView) layout.findViewById(R.id.PostDate);
holder.post = post;
int fontSize = aSMApplication.getCurrentApplication().getPostFontSize();
holder.indexTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, fontSize - 2);
holder.authorTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, fontSize - 2);
holder.titleTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, fontSize - 2);
holder.dateTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, fontSize - 4);
holder.contentTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, fontSize);
holder.attachTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, fontSize - 2);
layout.setTag(holder);
}
else {
layout = (RelativeLayout)convertView;
holder = (ViewHolder)layout.getTag();
holder.post = post;
layout.setTag(holder);
}
if (post.getAuthor() == null) {
holder.titleTextView.setText("错误的文章号,原文可能已经被删除");
return layout;
}
holder.authorTextView.setText(post.getAuthor());
holder.indexTextView.setText(post.getPostIndex());
holder.titleTextView.setText(post.getTitle());
if (post.getTitle() == null) {
holder.titleTextView.setHeight(0);
holder.lineView.setVisibility(View.INVISIBLE);
holder.attachTextView.setHeight(0);
}
holder.contentTextView.setText(post.getContent());
// Vt100TerminalModel.handleContent(post.getContent(), holder.contentTextView);
Linkify.addLinks(holder.contentTextView, Linkify.WEB_URLS | Linkify.EMAIL_ADDRESSES);
holder.attachTextView.setMovementMethod(LinkMovementMethod.getInstance());
ArrayList<Attachment> attachments = post.getAttachFiles();
if (attachments != null) {
holder.imageLayout.removeAllViews();
StringBuilder contentBuilder = new StringBuilder();
contentBuilder.append("");
if (attachments.size() >= 16){
// 如果照片数量多余16张，不再放大图片
UrlImageViewHelper.setUseZoomIn(false);
}
else{
UrlImageViewHelper.setUseZoomIn(true);
}
// TODO: pass screen orientation to UrlImageViewHelper
for (int i = 0; i < attachments.size(); i++) {
Attachment attachment = attachments.get(i);
String attachUrl = attachment.getAttachUrl();
contentBuilder.append("<a href='").append(attachUrl).append("'>");
contentBuilder.append(attachment.getName()).append("</a><br/>");
String fileType = attachment.getName().toLowerCase();
if(fileType.endsWith("gif")){
// Log.d("image", attachUrl);
GifWebView view = new GifWebView(m_fragment.getActivity(), attachUrl, attachment.getName());
LayoutParams layoutParams = new LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
layoutParams.setMargins(1, 1, 1, 1);
view.setLayoutParams(layoutParams);
view.setTag(R.id.tag_first, i);
view.setTag(R.id.tag_second, attachments);
// http://stackoverflow.com/questions/3916330/android-webview-webpage-should-fit-the-device-screen
view.getSettings().setLoadWithOverviewMode(true);
view.getSettings().setUseWideViewPort(true);
holder.imageLayout.addView(view);
view.setOnClickListener(this);
} else if (fileType.endsWith("jpg")
|| fileType.endsWith("jpeg")
|| fileType.endsWith("png") || fileType.endsWith("bmp")) {
// Log.d("image", attachUrl);
ImageView imageView = new ImageView(m_fragment.getActivity());
LayoutParams layoutParams = new LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
layoutParams.setMargins(1, 1, 1, 1);
imageView.setLayoutParams(layoutParams);
imageView.setTag(R.id.tag_first, i);
imageView.setTag(R.id.tag_second, attachments);
holder.imageLayout.addView(imageView);
if (aSMApplication.getCurrentApplication().isNightTheme()) {
UrlImageViewHelper.setUrlDrawable(imageView, attachUrl, R.drawable.loading_night);
} else {
UrlImageViewHelper.setUrlDrawable(imageView, attachUrl, R.drawable.loading_day);
}
imageView.setOnClickListener(this);
}
}
holder.attachTextView.setText(Html.fromHtml(contentBuilder.toString()));
}
holder.dateTextView.setText(StringUtility.getFormattedString(post.getDate()));
if (aSMApplication.getCurrentApplication().isNightTheme()) {
holder.titleTextView.setTextColor(layout.getResources().getColor(R.color.status_text_night));
holder.indexTextView.setTextColor(layout.getResources().getColor(R.color.status_text_night));
holder.contentTextView.setTextColor(layout.getResources().getColor(R.color.status_text_night));
holder.attachTextView.setTextColor(layout.getResources().getColor(R.color.status_text_night));
holder.authorTextView.setTextColor(layout.getResources().getColor(R.color.blue_text_night));
}
// hide titles for all following posts
if (position != 0) {
holder.titleTextView.setVisibility(View.GONE);
} else {
holder.titleTextView.setVisibility(View.VISIBLE);
}
return layout;
}
@Override
public int getCount() {
return m_postList.size();
}
@Override
public Object getItem(int position) {
if (position >= m_postList.size()) {
position = m_postList.size() - 1;
}
return m_postList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent();
intent.setClassName("com.athena.asm",
"com.athena.asm.FullImageActivity");
int attachmentIdx = (Integer) v.getTag(R.id.tag_first);
@SuppressWarnings("unchecked")
ArrayList<Attachment> attachments = (ArrayList<Attachment>) v.getTag(R.id.tag_second);
ArrayList<String> urlList = new ArrayList<String>();
ArrayList<String> fnameList = new ArrayList<String>();
for (int i = 0; i < attachments.size(); i++) {
urlList.add(attachments.get(i).getAttachUrl());
fnameList.add(attachments.get(i).getName());
}
intent.putExtra(StringUtility.IMAGE_INDEX, attachmentIdx);
intent.putStringArrayListExtra(StringUtility.IMAGE_URL, urlList);
intent.putStringArrayListExtra(StringUtility.IMAGE_NAME, fnameList);
m_fragment.startActivityForResult(intent, 0);
}
@Override
public int getPositionForSection(int section) {
// TODO Auto-generated method stub
return section;
}
@Override
public int getSectionForPosition(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public Object[] getSections() {
// TODO Auto-generated method stub
return sections;
}
}