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Merge pull request #137 from pinterest/fixPriorityCrashOniOS7

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Priority is only available on iOS 8 and above.
This commit is contained in:
Garrett Moon
2016-02-10 13:16:43 -08:00
parent 9c5c68f58a dd3738bc4a
commit 2ec7ea23e3
1 changed files with 17 additions and 1 deletions
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18
Pod/Classes/PINRemoteImageDownloadTask.m
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@@ -11,8 +11,22 @@
#import "PINRemoteImage.h"
#import "PINRemoteImageCallbacks.h"
@interface PINRemoteImageDownloadTask () {
BOOL _canSetDataTaskPriority;
}
@end
@implementation PINRemoteImageDownloadTask
- (instancetype)init
{
if (self = [super init]) {
_canSetDataTaskPriority = [NSURLSessionTask instancesRespondToSelector:@selector(setPriority:)];
}
return self;
}
- (BOOL)hasProgressBlocks
{
__block BOOL hasProgressBlocks = NO;
@@ -57,7 +71,9 @@
- (void)setPriority:(PINRemoteImageManagerPriority)priority
{
[super setPriority:priority];
self.urlSessionTaskOperation.dataTask.priority = dataTaskPriorityWithImageManagerPriority(priority);
if (_canSetDataTaskPriority) {
self.urlSessionTaskOperation.dataTask.priority = dataTaskPriorityWithImageManagerPriority(priority);
}
self.urlSessionTaskOperation.queuePriority = operationPriorityWithImageManagerPriority(priority);
}