标签：des android style http ar io color os sp
东西拼凑，终于弄出来可以用的代码
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public
class
DownManagerTask { private
static
final
String TAG = "DownManagerTask"; private
static
DownManagerTask DOWN_TASK = new
DownManagerTask(); private
Context context; private
DownloadManager downloadManager; long
downloadId = -1; private
Bitmap bitmap; private
ImageView imageView; private
DownManagerTask(){} public
static
DownManagerTask getInstance(){ return
DOWN_TASK; } @SuppressLint("InlinedApi") public
void
init(Context context,ImageView imageView){ this.context
= context; this.imageView
= imageView; downloadManager
= (DownloadManager) context.getSystemService(Context.DOWNLOAD_SERVICE); } /** *
将下载的图片转化成bitMap *
*/ @SuppressLint("NewApi") private
void
parseBitMap(){ try{
ParcelFileDescriptor
pfd = downloadManager.openDownloadedFile(downloadId); FileDescriptor
fileDescriptor = pfd.getFileDescriptor(); bitmap
= BitmapFactory.decodeFileDescriptor(fileDescriptor); pfd.close();
}catch(Exception
e){ e.printStackTrace();
}
} /** *
下载方法 *
@param url */ @SuppressLint("NewApi") public
void
download(String url){ Log.d(TAG,
url); Uri
uri = Uri.parse(url); DownloadManager.Request
request = new
DownloadManager.Request(uri); request.setAllowedNetworkTypes(Request.NETWORK_MOBILE |
Request.NETWORK_WIFI); request.setAllowedOverRoaming(false); MimeTypeMap
mimeTypeMap = MimeTypeMap.getSingleton(); String
mimeString = mimeTypeMap.getMimeTypeFromExtension(MimeTypeMap .getFileExtensionFromUrl(url)); request.setMimeType(mimeString); //request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS,
"Bugdroid.png"); request.allowScanningByMediaScanner(); request.setVisibleInDownloadsUi(true); downloadId
= downloadManager.enqueue(request); Log.d(TAG,
"downloadId:"+downloadId); context.registerReceiver(receiver,
new
IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE)); } public
void
unregisterReceiver(){ context.unregisterReceiver(receiver); } @SuppressLint("NewApi") public
void
temp(){ Cursor
c = downloadManager.query(new
DownloadManager.Query().setFilterById(downloadId)); if(c
!= null){
c.moveToFirst();
Log.d(TAG,(c.getString(c.getColumnIndex(DownloadManager.COLUMN_LOCAL_FILENAME)))); c.close();
}
} private
BroadcastReceiver receiver = new
BroadcastReceiver() { @SuppressLint("NewApi") @Override public
void
onReceive(Context context, Intent intent) { //这里可以取得下载的id，这样就可以知道哪个文件下载完成了。适用与多个下载任务的监听
if(intent.getAction().equals(DownloadManager.ACTION_DOWNLOAD_COMPLETE)){ Log.v(TAG,
""+intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID,
0));
Log.v(TAG,
"download
complete");
parseBitMap(); imageView.setImageBitmap(bitmap); Toast.makeText(context,
"download
complete",
Toast.LENGTH_SHORT).show(); } } }; } |
标签：des android style http ar io color os sp
原文地址：http://blog.csdn.net/u014311051/article/details/41974169
