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add support for high priority download

This commit is contained in:
jason 2014-03-15 03:24:02 +08:00
parent 4e4ecd6d02
commit 8b315a3585
4 changed files with 18 additions and 2 deletions
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7
SDWebImage/SDWebImageDownloader.h
View File

@ -37,7 +37,12 @@ typedef NS_OPTIONS(NSUInteger, SDWebImageDownloaderOptions) {
* Enable to allow untrusted SSL ceriticates.
* Useful for testing purposes. Use with caution in production.
*/
SDWebImageDownloaderAllowInvalidSSLCertificates = 1 << 6
SDWebImageDownloaderAllowInvalidSSLCertificates = 1 << 6,
/**
*
*/
SDWebImageDownloaderHighPriority = 1 << 7,
};

4
SDWebImage/SDWebImageDownloader.m
View File

@ -152,6 +152,10 @@ static NSString *const kCompletedCallbackKey = @"completed";
SDWebImageDownloader *sself = wself;
[sself removeCallbacksForURL:url];
}];
if (options & SDWebImageDownloaderHighPriority) {
operation.queuePriority = NSOperationQueuePriorityHigh;
}
[wself.downloadQueue addOperation:operation];
if (wself.executionOrder == SDWebImageDownloaderLIFOExecutionOrder) {

8
SDWebImage/SDWebImageManager.h
View File

@ -55,7 +55,13 @@ typedef NS_OPTIONS(NSUInteger, SDWebImageOptions) {
* Enable to allow untrusted SSL ceriticates.
* Useful for testing purposes. Use with caution in production.
*/
SDWebImageAllowInvalidSSLCertificates = 1 << 7
SDWebImageAllowInvalidSSLCertificates = 1 << 7,
/**
* By default, image are loaded in the order they were queued. This flag move them to
* the front of the queue and is loaded immediately instead of waiting for the current queue to be loaded (which
* could take a while).
*/
SDWebImageHighPriority = 1 << 8
};
typedef void(^SDWebImageCompletedBlock)(UIImage *image, NSError *error, SDImageCacheType cacheType);

1
SDWebImage/SDWebImageManager.m
View File

@ -127,6 +127,7 @@
if (options & SDWebImageContinueInBackground) downloaderOptions |= SDWebImageDownloaderContinueInBackground;
if (options & SDWebImageHandleCookies) downloaderOptions |= SDWebImageDownloaderHandleCookies;
if (options & SDWebImageAllowInvalidSSLCertificates) downloaderOptions |= SDWebImageDownloaderAllowInvalidSSLCertificates;
if (options & SDWebImageHighPriority) downloaderOptions |= SDWebImageDownloaderHighPriority;
if (image && options & SDWebImageRefreshCached) {
// force progressive off if image already cached but forced refreshing
downloaderOptions &= ~SDWebImageDownloaderProgressiveDownload;