/**
* 开始下载任务
*
* @param downloadId
* @param callback
*/
public void startTask(int downloadId, FileDownloaderCallback callback) {
FileDownloaderModel model = getFileDownloaderModelById(downloadId);
if (model != null) {
BridgeListener bridgeListener = mListenerManager.getBridgeListener(downloadId);
bridgeListener.addDownloadListener(callback);
if (mDownloadingList.size() >= mConfiguration.getMaxDownloadingCount()) { // 下载中队列已满
if (!mWaitQueue.contains(model)) {
mWaitQueue.offer(model);
}
bridgeListener.wait(downloadId);
} else {
mDownloadingList.add(model);
final BaseDownloadTask task =
FileDownloader.getImpl()
.create(model.getUrl())
.setPath(model.getPath())
.setCallbackProgressTimes(100)
.setAutoRetryTimes(mAutoRetryTimes)
.setListener(bridgeListener);
for (int i = 0; i < mHeaders.size(); i++) {
task.addHeader(mHeaders.name(i), mHeaders.value(i));
}
bridgeListener.setDownloadTask(task);
task.start();
}
} else {
ILogger.e("Task does not exist!");
}
}
/** 初始化DownloadManager */
public synchronized void init(DownloaderManagerConfiguration configuration) {
FileDownloader.init(configuration.getContext(), configuration.getOkHttpClientCustomMaker());
FileDownloader.getImpl().bindService();
ILogger.DEBUG = configuration.isDebug();
FileDownloadLog.NEED_LOG = ILogger.DEBUG;
this.mConfiguration = configuration;
this.mExtFieldMap = configuration.getDbExtField();
mDbController =
new FileDownloaderDBController(
configuration.getContext(),
configuration.getDbVersion(),
mExtFieldMap,
configuration.getDbUpgradeListener());
mAllTasks = mDbController.getAllTasks();
mConnectListenerList = new ArrayList<>();
mListenerManager = new ListenerManager();
mAutoRetryTimes = configuration.getAutoRetryTimes();
mHeaders = configuration.getHeaders();
// 设置下载保存目录
if (!StringUtils.isEmpty(configuration.getDownloadStorePath())) {
FileDownloadUtils.setDefaultSaveRootPath(configuration.getDownloadStorePath());
}
mWaitQueue = new LinkedList<>();
mDownloadingList = Collections.synchronizedList(new ArrayList<FileDownloaderModel>());
mDownloadManager = this;
ShellUtils.execCommand("chmod 777 " + configuration.getDownloadStorePath(), false);
}
/** 释放下载管理器 */
public void onDestroy() {
try {
mConnectListenerList.clear();
pauseAllTask();
FileDownloader.getImpl().unBindServiceIfIdle();
} catch (Exception e) {
}
}
/**
* 暂停任务
*
* @param downloadId
*/
public synchronized void pauseTask(int downloadId) {
if (isWaiting(downloadId)) {
BridgeListener bridgeListener = mListenerManager.getBridgeListener(downloadId);
removeWaitQueueTask(downloadId);
bridgeListener.stop(downloadId, getSoFar(downloadId), getTotal(downloadId));
} else {
FileDownloader.getImpl().pause(downloadId);
}
}
/**
* 根据downloadId获取文件已下载大小
*
* @param downloadId
* @return
*/
public long getSoFar(final int downloadId) {
return FileDownloader.getImpl().getSoFar(downloadId);
}
/**
* 根据downloadId获取文件总大小
*
* @param downloadId
* @return
*/
public long getTotal(final int downloadId) {
return FileDownloader.getImpl().getTotal(downloadId);
}
/**
* 获取FileDownloader FileDownloadStatus下载状态
*
* @param downloadId
* @return
*/
private int getStatus(final int downloadId) {
return FileDownloader.getImpl().getStatus(downloadId);
}
/**
* 获取service是否已连接
*
* @return
*/
public boolean isReady() {
return FileDownloader.getImpl().isServiceConnected();
}
/**
* 移除sevice连接监听
*
* @param listener
*/
public void removeServiceConnectListener(FileDownloadConnectListener listener) {
FileDownloader.getImpl().removeServiceConnectListener(listener);
}
/**
* 添加service连接监听
*
* @param listener
*/
public void addServiceConnectListener(FileDownloadConnectListener listener) {
FileDownloader.getImpl().addServiceConnectListener(listener);
}
/** 停止所有任务 */
public void pauseAllTask() {
FileDownloader.getImpl().pauseAll();
}