package com.dotcool.view;
import java.util.HashMap;
import java.util.Map;
import android.app.AlertDialog;
import android.app.ListActivity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.ContentResolver;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import com.dotcool.R;
import com.dotcool.bll.DbDataOperation;
import com.dotcool.bll.Downloader;
import com.dotcool.model.LoadInfo;
import com.dotcool.util.AppUtil;
import com.dotcool.util.BookUtil;
import com.dotcool.util.TimeUtil;
public class BookOnlineActivity extends ListActivity
{
private ListView lvBookOnline;
private ContentResolver resolver;
ImageView ivbookCover ;
TextView tvbookName,tvbookDetail;
Button btnDownload;
private int threadcount;
//Begin-change by Gank
private int[] bookIconRes = new int[]{R.drawable.p39113,R.drawable.p39143,R.drawable.p39534,
R.drawable.p39726};
private String[] bookNames = new String[]{"深圳情人","本色","天使不在线","我的天使我的爱"};
private String[] bookDetails = new String[]{
"刘雪婷慵懒地靠在浅绿色布艺沙发上，修长笔直的双腿随意搁在圆皮脚凳上，哈欠连天地看着手机里连绵不断的贺年短信。",
"两个人，像田地中的两只鼹鼠，你觅食，我守窝，你守窝，我觅食，在一起互相温暖着，照料着，度过每一个白天和夜晚，每一个春夏秋冬。",
"辟辟啪啪，打上这最后一行字，文字已经把电脑的屏幕塞得满满的，再也没有任何缝隙。键盘敲打的声音突然停止，四周重新陷入一片寂静中。",
"在我安静的小屋里有着星点的光，那是我的烟。月光从窗口洒下，光影里有隐约飘散的烟雾。慢慢地腾升，绕着墙上的十字绣画袅袅而上。"};
private final static String URL = "";
private String[] bookUrls = new String[]{
"http://storezhang-upload.stor.sinaapp.com/fiction/txt/c76b0495-8e4e-4dde-b6d4-ece72c53c2d9.txt",
"http://storezhang-upload.stor.sinaapp.com/fiction/txt/aa371da1-7368-4f81-a036-0897a87e04a8.txt",
"http://storezhang-upload.stor.sinaapp.com/fiction/txt/21243553-5e6c-4f59-8e3b-b3eafebddfba.txt",
"http://storezhang-upload.stor.sinaapp.com/fiction/txt/8eae5c2d-3c0c-43d1-8728-82bed11babb7.txt"};
//End
private static final String SD_PATH = "/mnt/sdcard/DotcoolReader/";
// 存放各个下载器
private Map<String, Downloader> downloaders = new HashMap<String, Downloader>();
// 存放与下载器对应的进度条
private Map<String, ProgressBar> ProgressBars = new HashMap<String, ProgressBar>();
private LinearLayout layout;
private NotificationManager notificationManager;
private int notificationId = 1;
private int currentPosition;
private Handler mHandler = new Handler() {
public void handleMessage(Message msg) {
if (msg.what == 1) {
String url = (String) msg.obj;
int length = msg.arg1;
ProgressBar bar = ProgressBars.get(url);
if (bar != null) {
// 设置进度条按读取的length长度更新
bar.incrementProgressBy(length);
if (bar.getProgress() == bar.getMax()) {
notificationManager.cancel(notificationId);
btnDownload.setText("下载");
// 下载完成后清除进度条并将map中的数据清空
LinearLayout layout = (LinearLayout) bar.getParent();
layout.removeView(bar);
ProgressBars.remove(url);
downloaders.get(url).delete(url);
downloaders.get(url).reset();
downloaders.remove(url);
new AlertDialog.Builder(BookOnlineActivity.this).setTitle("提示").setMessage("下载完成，是否将《"+bookNames[currentPosition]+"》加入书架?")
.setPositiveButton("加入", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
if(BookUtil.isExist( DbDataOperation.getBookInfo(resolver), SD_PATH+bookNames[currentPosition]+".txt")==true)
{
new AlertDialog.Builder(BookOnlineActivity.this).setTitle("提示").setMessage("此书在书架中已存在，无需继续添加！").setPositiveButton("确定", null).show();
}
else
{
DbDataOperation.insertToBookInfo(resolver, bookNames[currentPosition], "未知", SD_PATH+bookNames[currentPosition]+".txt", TimeUtil.getCurrentTime(),
TimeUtil.getCurrentTime(), 0, "未分类",BookUtil.getBookSize(SD_PATH+bookNames[currentPosition]+".txt"), "0.0%");
MainTabActivity.thMain.setCurrentTabByTag(MainTabActivity.TAB_BOOKSHELF);
}
}
}).setNegativeButton("取消", null).show();
}
}
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
resolver = getContentResolver();
lvBookOnline = getListView();
lvBookOnline.setCacheColorHint(000000);
lvBookOnline.setDivider(null);
lvBookOnline.setBackgroundResource(R.drawable.bg_listview);
lvBookOnline.setFocusable(true);
lvBookOnline.setAdapter(new CustomAdapter());
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
if(keyCode==KeyEvent.KEYCODE_BACK)
{
AppUtil.appExit(this);
}
return super.onKeyDown(keyCode, event);
}
class CustomAdapter extends BaseAdapter
{
public int getCount()
{
return bookNames.length;
}
public Object getItem(int position)
{
return null;
}
public long getItemId(int position)
{
return 0;
}
public View getView(final int position, View convertView, ViewGroup parent)
{
layout = (LinearLayout) getLayoutInflater().inflate(R.layout.book_online_lv_item, null);
ivbookCover = (ImageView)layout.findViewById(R.id.ivBookCover);
tvbookName = (TextView)layout.findViewById(R.id.tvBookName);;
tvbookDetail = (TextView)layout.findViewById(R.id.tvBookDetail);
btnDownload = (Button)layout.findViewById(R.id.btnDownload);
ivbookCover.setBackgroundResource(bookIconRes[position]);
tvbookName.setText(bookNames[position]);
tvbookDetail.setText(bookDetails[position]);
btnDownload.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
currentPosition = position;
startDownload(layout);
}
});
return layout;
}
}
/**
* 显示一个自定义内容的notification
* @param iconId 图标资源id
* @param tickerText 状态栏的标题
* @param contentTitle 通知的标题
* @param contentText 通知的内容
* @param id 通知的id
*/
public void showNotification(int iconId,String tickerText,String contentTitle,String contentText,int id)
{
notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
Notification notification = new Notification(iconId, tickerText, System.currentTimeMillis());
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, getIntent(), 0);
notification.setLatestEventInfo(this, contentTitle, contentText, pendingIntent);
notificationManager.notify(id, notification);
}
/**
* 响应开始下载按钮的点击事件
*/
public void startDownload(View v)
{
if(btnDownload.getText().equals("下载")||btnDownload.getText().equals("继续"))
{
btnDownload.setText("暂停");
Toast.makeText(BookOnlineActivity.this, "开始下载", 500).show();
showNotification(R.drawable.online_download, "《"+bookNames[currentPosition]+"》开始下载", "正在下载", "《"+bookNames[currentPosition]+"》下载中...",notificationId);
String urlstr = URL + bookUrls[currentPosition] ;
String localfile = SD_PATH + bookNames[currentPosition]+".txt";
// 设置下载线程数为4
threadcount = 4;
// 初始化一个downloader下载器
Downloader downloader = downloaders.get(urlstr);
if (downloader == null) {
downloader = new Downloader(urlstr, localfile, threadcount, this,
mHandler);
downloaders.put(urlstr, downloader);
}
if (downloader.isdownloading())
return;
// 得到下载信息类的个数组成集合
LoadInfo loadInfo = downloader.getDownloaderInfors();
// 显示进度条
showProgress(loadInfo, urlstr, v);
// 调用方法开始下载
downloader.download();
}
else
{
btnDownload.setText("继续");
pauseDownload(v);
}
}
/**
* 响应暂停下载按钮的点击事件
*/
public void pauseDownload(View v)
{
String urlstr = URL + bookUrls[currentPosition];
downloaders.get(urlstr).pause();
}
/**
* 显示进度条
*/
private void showProgress(LoadInfo loadInfo, String url, View v)
{
ProgressBar bar = ProgressBars.get(url);
if (bar == null)
{
bar = new ProgressBar(this, null,
android.R.attr.progressBarStyleHorizontal);
bar.setMax(loadInfo.getFileSize());
bar.setProgress(loadInfo.getComplete());
System.out.println(loadInfo.getFileSize()+"--"+loadInfo.getComplete());
ProgressBars.put(url, bar);
LinearLayout.LayoutParams params = new LayoutParams(
LayoutParams.FILL_PARENT, 5);
((LinearLayout) v).addView(bar, params);
}
}
}