谷歌应用市场6
2015-11-03 17:32
246 查看
1.观察设计模式
1.观察者与被观察者2.观察进度的改变
3.自己重新定义被观察者，可以多暴露多个方法
(1)被观察者
// 被观察者
// 假设 具备当前的下载进度
public class DownloadManager {
public interface Observer{
public void update();
public void updateState();
}
List<Observer> observers=new ArrayList<DownloadManager.Observer>();
// 有内容发生了改变1
// 添加观察者
public void addObserver(Observer observer){
if(observer==null){
throw new RuntimeException();
}
if(!observers.contains(observer)){
observers.add(observer);
}
}
// 通知数据发生变化
public void notifyObservers(){
for(Observer observer:observers){
observer.update();
}
}
// 通知状态改变
public void notifyState(){
for(Observer observer:observers){
observer.updateState();
}
}
}(2)观察者1
// 观察者
public class DetailView implements Observer {
@Override
public void update() {
System.out.println("aaabbbccc");
}
@Override
public void updateState() {
System.out.println("状态发生改变");
}
}(3)观察者2
// 观察者
public class DetailView2 implements Observer {
//当被观察者数据发生变化的时候 调用该方法
@Override
public void update(Observable observable, Object data) {
System.out.println("爷爷观察到了你的变化");
}
}(4)MainActivity
public class MainActivity extends Activity {
private DownloadManager downloadManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
downloadManager = new DownloadManager();
downloadManager.addObserver(new DetailView()); // 当被观察者 数据发生变化的时候 通知观察者
// downloadManager.addObserver(new DetailView2());
// 观察者
}
public void click(View v){
downloadManager.notifyObservers();// 通知观察者 内容发生变化
}
}4.项目补充：下载被观察者
public class DownloadManager {
/** 默认 */
public static final int STATE_NONE = 0;
/** 等待 */
public static final int STATE_WAITING = 1;
/** 下载中 */
public static final int STATE_DOWNLOADING = 2;
/** 暂停 */
public static final int STATE_PAUSE = 3;
/** 错误 */
public static final int STATE_ERROR = 4;
/** 下载完成 */
public static final int STATE_DOWNLOED = 5;
private static DownloadManager instance;
private DownloadManager() {
}
/** 用于记录下载信息,如果是正式项目,需要持久化保存 */
private Map<Long, DownloadInfo> mDownloadMap = new ConcurrentHashMap<Long, DownloadInfo>();
/**用于记录所有下载的任务,方便取消下载时,能通过id找到该任务进行删除*/
private Map<Long,DownloadTask> mTaskMap=new ConcurrentHashMap<Long, DownloadManager.DownloadTask>();
private List<DownloadObserver> mObservers=new ArrayList<DownloadObserver>();
/** 注册观察者 */
public void registerObserver(DownloadObserver observer) {
synchronized (mObservers) {
if (!mObservers.contains(observer)) {
mObservers.add(observer);
}
}
}
/** 反注册观察者 */
public void unRegisterObserver(DownloadObserver observer) {
synchronized (mObservers) {
if (mObservers.contains(observer)) {
mObservers.remove(observer);
}
}
}
/** 当下载状态发送改变的时候回调 */
public void notifyDownloadStateChanged(DownloadInfo info) {
synchronized (mObservers) {
for (DownloadObserver observer : mObservers) {
observer.onDownloadStateChanged(info);
}
}
}
/** 当下载进度发送改变的时候回调 */
public void notifyDownloadProgressed(DownloadInfo info) {
synchronized (mObservers) {
for (DownloadObserver observer : mObservers) {
observer.onDownloadProgressed(info);
}
}
}
// 单例
public static synchronized DownloadManager getInstance() {
if (instance == null) {
instance = new DownloadManager();
}
return instance;
}
public synchronized void download(AppInfo appInfo) {
DownloadInfo info = mDownloadMap.get(appInfo.getId());
if (info == null) {
info = DownloadInfo.clone(appInfo);
mDownloadMap.put(appInfo.getId(), info);// 保存到集合中
}
if (info.getDownloadState() == STATE_NONE
|| info.getDownloadState() == STATE_PAUSE
|| info.getDownloadState() == STATE_ERROR) {
// 下载之前，把状态设置为STATE_WAITING，
// 因为此时并没有产开始下载，只是把任务放入了线程池中，
// 当任务真正开始执行时，才会改为STATE_DOWNLOADING
info.setDownloadState(STATE_WAITING);
// 通知更新界面
notifyDownloadStateChanged(info);
DownloadTask task = new DownloadTask(info);
mTaskMap.put(info.getId(), task);
ThreadManager.creatDownLoadPool().execute(task);
}
}
/** 安装应用 */
public synchronized void install(AppInfo appInfo) {
stopDownload(appInfo);
DownloadInfo info = mDownloadMap.get(appInfo.getId());// 找出下载信息
if (info != null) {// 发送安装的意图
Intent installIntent = new Intent(Intent.ACTION_VIEW);
installIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
installIntent.setDataAndType(Uri.parse("file://" + info.getPath()),
"application/vnd.android.package-archive");
UIUtils.getContext().startActivity(installIntent);
}
notifyDownloadStateChanged(info);
}
/**暂停下载*/
public synchronized void pause(AppInfo appInfo){
stopDownload(appInfo);
DownloadInfo info=mDownloadMap.get(appInfo.getId());
if(info!=null){// 修改下载状态
info.setDownloadState(STATE_PAUSE);
notifyDownloadStateChanged(info);
}
}
/** 取消下载，逻辑和暂停类似，只是需要删除已下载的文件 */
public synchronized void cancel(AppInfo appInfo) {
stopDownload(appInfo);
DownloadInfo info = mDownloadMap.get(appInfo.getId());// 找出下载信息
if (info != null) {// 修改下载状态并删除文件
info.setDownloadState(STATE_NONE);
notifyDownloadStateChanged(info);
info.setCurrentSize(0);
File file = new File(info.getPath());
file.delete();
}
}
private void stopDownload(AppInfo appInfo) {
DownloadTask task=mTaskMap.remove(appInfo.getId());
if(task!=null){
ThreadManager.creatDownLoadPool().cancel(task);
}
}
public class DownloadTask implements Runnable {
private DownloadInfo info;
public DownloadTask(DownloadInfo info) {
this.info = info;
}
@Override
public void run() {
info.setDownloadState(STATE_DOWNLOADING);
notifyDownloadStateChanged(info);
File file = new File(info.getPath());// 获取下载文件
HttpResult httpResult = null;
InputStream stream = null;
// 如果文件不存在, 或者进度为0,或者进度和文件长度不一致 重新下载
if (info.getCurrentSize() == 0 || !file.exists()
|| file.length() != info.getCurrentSize()) {
info.setCurrentSize(0);
file.delete();
httpResult = HttpHelper.download(HttpHelper.URL
+ "download?name=" + info.getUrl());
} else {
// 不需要重新下载
// 文件存在且长度和进度相等，采用断点下载
httpResult = HttpHelper.download(HttpHelper.URL
+ "download?name=" + info.getUrl() + "&range="
+ info.getCurrentSize());
}
if (httpResult == null
|| (stream = httpResult.getInputStream()) == null) {
info.setDownloadState(STATE_ERROR);
notifyDownloadStateChanged(info);
} else {
FileOutputStream fos = null;
try {
fos = new FileOutputStream(file, true);
int count = -1;
byte[] buffer = new byte[1024];
while (((count = stream.read(buffer)) != -1)
&& info.getDownloadState() == STATE_DOWNLOADING) {
fos.write(buffer, 0, count);
fos.flush();
info.setCurrentSize(info.getCurrentSize()+count);
notifyDownloadProgressed(info);
}
} catch (Exception e) {
LogUtils.e(e);// 出异常后需要修改状态并删除文件
info.setDownloadState(STATE_ERROR);
notifyDownloadStateChanged(info);
info.setCurrentSize(0);
file.delete();
} finally {
IOUtils.close(fos);
if (httpResult != null) {
httpResult.close();
}
}
// 判断进度是否和App相等
if (info.getCurrentSize() == info.getAppSize()) {
info.setDownloadState(STATE_DOWNLOED);
notifyDownloadStateChanged(info);
} else if (info.getDownloadState() == STATE_PAUSE) {
notifyDownloadStateChanged(info);
} else {
info.setDownloadState(STATE_ERROR);
notifyDownloadStateChanged(info);
info.setCurrentSize(0);
file.delete();
}
}
mTaskMap.remove(info.getId());
}
}
public interface DownloadObserver {
public void onDownloadStateChanged(DownloadInfo info);
public void onDownloadProgressed(DownloadInfo info);
}
public DownloadInfo getDownloadInfo(long id) {
// TODO Auto-generated method stub
return mDownloadMap.get(id);
}
}2.总结
1.详情见PPT和完整代码2.自定义圆形进度条
框架
public class ProgressView extends View {
public ProgressView(Context context) {
super(context);
}
public ProgressView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public ProgressView(Context context, AttributeSet attrs) {
super(context, attrs);
}
// 绘制控件
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
//canvas.drawBitmap(bitmap, left, top, paint); 把图片画进去，背景图片
/*oval 圆的模型 矩形
* startAngle 开始的角度
* sweepAngle 范围的角度 //不停修改这个
* useCenter 是否填充中间部分
* paint 画笔
*/
//canvas.drawArc(oval, startAngle, sweepAngle, useCenter, paint);
}
}3.完整代码
public class ProgressArc extends View {
private final static int START_PROGRESS = -90;
private static final int SET_PROGRESS_END_TIME = 1000;
private static final float RATIO = 360f;
public final static int PROGRESS_STYLE_NO_PROGRESS = -1;
public final static int PROGRESS_STYLE_DOWNLOADING = 0;
public final static int PROGRESS_STYLE_WAITING = 1;
private int mDrawableForegroudResId;
private Drawable mDrawableForegroud;//图片
private int mProgressColor;//进度条的颜色
private RectF mArcRect;//用于画圆形的区域
private Paint mPaint;//用户画进度条的画笔
private boolean mUserCenter = false;
private OnProgressChangeListener mProgressChangeListener;//进度改变的监听
private float mStartProgress;//动画的起始进度
private float mCurrentProgress;//当前进度
private float mProgress;//目标进度
private float mSweep;
private long mStartTime, mEndTime;
private int mStyle = PROGRESS_STYLE_NO_PROGRESS;
private int mArcDiameter;
public ProgressArc(Context context) {
super(context);
int strokeWidth = UIUtils.dip2px(1);
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeWidth(strokeWidth);
mUserCenter = false;
mArcRect = new RectF();
}
public void setProgressChangeListener(OnProgressChangeListener listener) {
mProgressChangeListener = listener;
}
public void seForegroundResource(int resId) {
if (mDrawableForegroudResId == resId) {
return;
}
mDrawableForegroudResId = resId;
mDrawableForegroud = UIUtils.getDrawable(mDrawableForegroudResId);
invalidateSafe();
}
/** 设置直径 */
public void setArcDiameter(int diameter) {
mArcDiameter = diameter;
}
/** 设置进度条的颜色 */
public void setProgressColor(int progressColor) {
mProgressColor = progressColor;
mPaint.setColor(progressColor);
}
public void setStyle(int style) {
this.mStyle = style;
if (mStyle == PROGRESS_STYLE_WAITING) {
invalidateSafe();
} else {
}
}
/** 设置进度，第二个参数是否采用平滑进度 */
public void setProgress(float progress, boolean smooth) {
mProgress = progress;
if (mProgress == 0) {
mCurrentProgress = 0;
}
mStartProgress = mCurrentProgress;
mStartTime = System.currentTimeMillis();
if (smooth) {
mEndTime = SET_PROGRESS_END_TIME;
} else {
mEndTime = 0;
}
invalidateSafe();
}
private void invalidateSafe() {
if (UIUtils.isRunInMainThread()) {
postInvalidate();
} else {
invalidate();
}
}
/** 测量 */
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int width = 0;
int height = 0;
int widthMode = MeasureSpec.getMode(widthMeasureSpec);
int heightMode = MeasureSpec.getMode(heightMeasureSpec);
int widthSize = MeasureSpec.getSize(widthMeasureSpec);
int heightSize = MeasureSpec.getSize(heightMeasureSpec);
if (widthMode == MeasureSpec.EXACTLY) {//如果是精确的
width = widthSize;
} else {//采用图片的大小
width = mDrawableForegroud == null ? 0 : mDrawableForegroud.getIntrinsicWidth();
if (widthMode == MeasureSpec.AT_MOST) {
width = Math.min(width, widthSize);
}
}
if (heightMode == MeasureSpec.EXACTLY) {//如果是精确的
height = heightSize;
} else {//采用图片的大小
height = mDrawableForegroud == null ? 0 : mDrawableForegroud.getIntrinsicHeight();
if (heightMode == MeasureSpec.AT_MOST) {
height = Math.min(height, heightSize);
}
}
//计算出进度条的区域
mArcRect.left = (width - mArcDiameter) * 0.5f;
mArcRect.top = (height - mArcDiameter) * 0.5f;
mArcRect.right = (width + mArcDiameter) * 0.5f;
mArcRect.bottom = (height + mArcDiameter) * 0.5f;
setMeasuredDimension(width, height);
}
@Override
protected void onDraw(Canvas canvas) {
if (mDrawableForegroud != null) {//先把图片画出来
mDrawableForegroud.setBounds(0, 0, getMeasuredWidth(), getMeasuredHeight());
mDrawableForegroud.draw(canvas);
}
//再画进度
drawArc(canvas);
}
protected void drawArc(Canvas canvas) {
if (mStyle == PROGRESS_STYLE_DOWNLOADING || mStyle == PROGRESS_STYLE_WAITING) {
float factor;
long currentTime = System.currentTimeMillis();
if (mProgress == 100) {
factor = 1;
} else {
if (currentTime - mStartTime < 0) {
factor = 0;
} else if (currentTime - mStartTime > mEndTime) {
factor = 1;
} else {
factor = (currentTime - mStartTime) / (float) mEndTime;
}
}
mPaint.setColor(mProgressColor);
mCurrentProgress = mStartProgress + factor * (mProgress - mStartProgress);
mSweep = mCurrentProgress * RATIO;
canvas.drawArc(mArcRect, START_PROGRESS, mSweep, mUserCenter, mPaint);
if (factor != 1 && mStyle == PROGRESS_STYLE_DOWNLOADING) {
invalidate();
}
if (mCurrentProgress > 0) {
notifyProgressChanged(mCurrentProgress);
}
}
}
private void notifyProgressChanged(float currentProgress) {
if (mProgressChangeListener != null) {
mProgressChangeListener.onProgressChange(currentProgress);
}
}
public static interface OnProgressChangeListener {
public void onProgressChange(float smoothProgress);
}
}4.应用详情内的进度条修改样式
<item type="id" name="detail_progress"></item> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@android:id/background"> <bitmap android:src="@drawable/progress_bg2" /> </item> <item android:id="@android:id/secondaryProgress"> <bitmap android:src="@drawable/progress_bg2" /> </item> <item android:id="@android:id/progress"> <bitmap android:src="@drawable/process_normal2" /> </item> </layer-list>
补充
1.收藏下载分享(1)界面
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/bottom_layout" android:layout_width="match_parent" android:layout_height="match_parent" > <Button android:id="@+id/bottom_favorites" android:layout_width="68dp" android:layout_height="38dp" android:layout_alignParentLeft="true" android:layout_margin="6dp" android:background="@drawable/detail_btn" android:gravity="center" android:textColor="#ffffff" android:textSize="16dp" /> <Button android:id="@+id/bottom_share" android:layout_width="68dp" android:layout_height="38dp" android:layout_alignParentRight="true" android:layout_margin="6dp" android:background="@drawable/detail_btn" android:gravity="center" android:textColor="#ffffff" android:textSize="16dp" /> <FrameLayout android:id="@+id/progress_layout" android:layout_width="match_parent" android:layout_height="38dp" android:layout_centerVertical="true" android:layout_toLeftOf="@id/bottom_share" android:layout_toRightOf="@id/bottom_favorites" > <ProgressBar android:background="@drawable/progress_bg" android:id="@+id/pb_load_process" style="?android:attr/progressBarStyleHorizontal" android:layout_width="match_parent" android:layout_height="match_parent" android:progressDrawable="@drawable/progress_drawable" android:visibility="invisible" /> <TextView android:id="@+id/tv_load_process" android:layout_width="match_parent" android:layout_height="match_parent" android:text="暂停" android:textColor="#ffffff" android:textSize="18sp" android:gravity="center"/> </FrameLayout> <Button android:id="@+id/progress_btn" android:layout_width="match_parent" android:layout_height="38dp" android:layout_centerVertical="true" android:layout_toLeftOf="@id/bottom_share" android:layout_toRightOf="@id/bottom_favorites" android:background="@drawable/progress_btn" android:gravity="center" android:textColor="#ffffff" android:textSize="18dp" > </Button> </RelativeLayout>
(2)progress_drawable 图层
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@android:id/background"> <bitmap android:src="@drawable/progress_bg2" /> </item> <item android:id="@android:id/secondaryProgress"> <bitmap android:src="@drawable/progress_bg2" /> </item> <item android:id="@android:id/progress"> <bitmap android:src="@drawable/process_normal2" /> </item> </layer-list>
2.DownloadManager
public class DownloadManager {
/** 默认 */
public static final int STATE_NONE = 0;
/** 等待 */
public static final int STATE_WAITING = 1;
/** 下载中 */
public static final int STATE_DOWNLOADING = 2;
/** 暂停 */
public static final int STATE_PAUSE = 3;
/** 错误 */
public static final int STATE_ERROR = 4;
/** 下载完成 */
public static final int STATE_DOWNLOED = 5;
private static DownloadManager instance;
private DownloadManager() {
}
/** 用于记录下载信息,如果是正式项目,需要持久化保存 */
private Map<Long, DownloadInfo> mDownloadMap = new ConcurrentHashMap<Long, DownloadInfo>();
/**用于记录所有下载的任务,方便取消下载时,能通过id找到该任务进行删除*/
private Map<Long,DownloadTask> mTaskMap=new ConcurrentHashMap<Long, DownloadManager.DownloadTask>();
private List<DownloadObserver> mObservers=new ArrayList<DownloadObserver>();
/** 注册观察者 */
public void registerObserver(DownloadObserver observer) {
synchronized (mObservers) {
if (!mObservers.contains(observer)) {
mObservers.add(observer);
}
}
}
/** 反注册观察者 */
public void unRegisterObserver(DownloadObserver observer) {
synchronized (mObservers) {
if (mObservers.contains(observer)) {
mObservers.remove(observer);
}
}
}
/** 当下载状态发送改变的时候回调 */
public void notifyDownloadStateChanged(DownloadInfo info) {
synchronized (mObservers) {
for (DownloadObserver observer : mObservers) {
observer.onDownloadStateChanged(info);
}
}
}
/** 当下载进度发送改变的时候回调 */
public void notifyDownloadProgressed(DownloadInfo info) {
synchronized (mObservers) {
for (DownloadObserver observer : mObservers) {
observer.onDownloadProgressed(info);
}
}
}
// 单例
public static synchronized DownloadManager getInstance() {
if (instance == null) {
instance = new DownloadManager();
}
return instance;
}
public synchronized void download(AppInfo appInfo) {
DownloadInfo info = mDownloadMap.get(appInfo.getId());
if (info == null) {
info = DownloadInfo.clone(appInfo);
mDownloadMap.put(appInfo.getId(), info);// 保存到集合中
}
if (info.getDownloadState() == STATE_NONE
|| info.getDownloadState() == STATE_PAUSE
|| info.getDownloadState() == STATE_ERROR) {
// 下载之前，把状态设置为STATE_WAITING，
// 因为此时并没有产开始下载，只是把任务放入了线程池中，
// 当任务真正开始执行时，才会改为STATE_DOWNLOADING
info.setDownloadState(STATE_WAITING);
// 通知更新界面
notifyDownloadStateChanged(info);
DownloadTask task = new DownloadTask(info);
mTaskMap.put(info.getId(), task);
ThreadManager.creatDownLoadPool().execute(task);
}
}
/** 安装应用 */
public synchronized void install(AppInfo appInfo) {
stopDownload(appInfo);
DownloadInfo info = mDownloadMap.get(appInfo.getId());// 找出下载信息
if (info != null) {// 发送安装的意图
Intent installIntent = new Intent(Intent.ACTION_VIEW);
installIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
installIntent.setDataAndType(Uri.parse("file://" + info.getPath()),
"application/vnd.android.package-archive");
UIUtils.getContext().startActivity(installIntent);
}
notifyDownloadStateChanged(info);
}
/**暂停下载*/
public synchronized void pause(AppInfo appInfo){
stopDownload(appInfo);
DownloadInfo info=mDownloadMap.get(appInfo.getId());
if(info!=null){// 修改下载状态
info.setDownloadState(STATE_PAUSE);
notifyDownloadStateChanged(info);
}
}
/** 取消下载，逻辑和暂停类似，只是需要删除已下载的文件 */
public synchronized void cancel(AppInfo appInfo) {
stopDownload(appInfo);
DownloadInfo info = mDownloadMap.get(appInfo.getId());// 找出下载信息
if (info != null) {// 修改下载状态并删除文件
info.setDownloadState(STATE_NONE);
notifyDownloadStateChanged(info);
info.setCurrentSize(0);
File file = new File(info.getPath());
file.delete();
}
}
private void stopDownload(AppInfo appInfo) {
DownloadTask task=mTaskMap.remove(appInfo.getId());
if(task!=null){
ThreadManager.creatDownLoadPool().cancel(task);
}
}
public class DownloadTask implements Runnable {
private DownloadInfo info;
public DownloadTask(DownloadInfo info) {
this.info = info;
}
@Override
public void run() {
info.setDownloadState(STATE_DOWNLOADING);
notifyDownloadStateChanged(info);
File file = new File(info.getPath());// 获取下载文件
HttpResult httpResult = null;
InputStream stream = null;
// 如果文件不存在, 或者进度为0,或者进度和文件长度不一致 重新下载
if (info.getCurrentSize() == 0 || !file.exists()
|| file.length() != info.getCurrentSize()) {
info.setCurrentSize(0);
file.delete();
httpResult = HttpHelper.download(HttpHelper.URL
+ "download?name=" + info.getUrl());
} else {
// 不需要重新下载
// 文件存在且长度和进度相等，采用断点下载
httpResult = HttpHelper.download(HttpHelper.URL
+ "download?name=" + info.getUrl() + "&range="
+ info.getCurrentSize());
}
if (httpResult == null
|| (stream = httpResult.getInputStream()) == null) {
info.setDownloadState(STATE_ERROR);
notifyDownloadStateChanged(info);
} else {
FileOutputStream fos = null;
try {
fos = new FileOutputStream(file, true);
int count = -1;
byte[] buffer = new byte[1024];
while (((count = stream.read(buffer)) != -1)
&& info.getDownloadState() == STATE_DOWNLOADING) {
fos.write(buffer, 0, count);
fos.flush();
info.setCurrentSize(info.getCurrentSize()+count);
notifyDownloadProgressed(info);
}
} catch (Exception e) {
LogUtils.e(e);// 出异常后需要修改状态并删除文件
info.setDownloadState(STATE_ERROR);
notifyDownloadStateChanged(info);
info.setCurrentSize(0);
file.delete();
} finally {
IOUtils.close(fos);
if (httpResult != null) {
httpResult.close();
}
}
// 判断进度是否和App相等
if (info.getCurrentSize() == info.getAppSize()) {
info.setDownloadState(STATE_DOWNLOED);
notifyDownloadStateChanged(info);
} else if (info.getDownloadState() == STATE_PAUSE) {
notifyDownloadStateChanged(info);
} else {
info.setDownloadState(STATE_ERROR);
notifyDownloadStateChanged(info);
info.setCurrentSize(0);
file.delete();
}
}
mTaskMap.remove(info.getId());
}
}
public interface DownloadObserver {
public void onDownloadStateChanged(DownloadInfo info);
public void onDownloadProgressed(DownloadInfo info);
}
public DownloadInfo getDownloadInfo(long id) {
// TODO Auto-generated method stub
return mDownloadMap.get(id);
}
}
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