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Add a check whether `imageProgress` is NULL

This commit is contained in:
kinarob 2019-06-18 21:16:53 +08:00
parent 0c34657bc5
commit 17997fc52b
1 changed files with 9 additions and 5 deletions
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14
SDWebImage/UIView+WebCache.m
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@ -70,8 +70,10 @@ const int64_t SDWebImageProgressUnitCountUnknown = 1LL;
if (url) {
// reset the progress
NSProgress *imageProgress = objc_getAssociatedObject(self, @selector(sd_imageProgress));
imageProgress.totalUnitCount = 0;
imageProgress.completedUnitCount = 0;
if (imageProgress) {
imageProgress.totalUnitCount = 0;
imageProgress.completedUnitCount = 0;
}
#if SD_UIKIT || SD_MAC
// check and start image indicator
@ -85,8 +87,10 @@ const int64_t SDWebImageProgressUnitCountUnknown = 1LL;
}
SDImageLoaderProgressBlock combinedProgressBlock = ^(NSInteger receivedSize, NSInteger expectedSize, NSURL * _Nullable targetURL) {
imageProgress.totalUnitCount = expectedSize;
imageProgress.completedUnitCount = receivedSize;
if (imageProgress) {
imageProgress.totalUnitCount = expectedSize;
imageProgress.completedUnitCount = receivedSize;
}
#if SD_UIKIT || SD_MAC
if ([imageIndicator respondsToSelector:@selector(updateIndicatorProgress:)]) {
double progress = 0;
@ -108,7 +112,7 @@ const int64_t SDWebImageProgressUnitCountUnknown = 1LL;
@strongify(self);
if (!self) { return; }
// if the progress not been updated, mark it to complete state
if (finished && !error && imageProgress.totalUnitCount == 0 && imageProgress.completedUnitCount == 0) {
if (imageProgress && finished && !error && imageProgress.totalUnitCount == 0 && imageProgress.completedUnitCount == 0) {
imageProgress.totalUnitCount = SDWebImageProgressUnitCountUnknown;
imageProgress.completedUnitCount = SDWebImageProgressUnitCountUnknown;
}