sdwebimage如何获取缓存大小以及清除缓存

- (float)checkTmpSize {
float totalSize = 0;
NSDirectoryEnumerator *fileEnumerator = [[NSFileManager defaultManager] enumeratorAtPath:diskCachePath];
for (NSString *fileName in fileEnumerator) {
NSString *filePath = [diskCachePath stringByAppendingPathComponent:fileName];
NSDictionary *attrs = [[NSFileManager defaultManager] attributesOfItemAtPath:filePath error:nil];
unsigned long long length = [attrs fileSize];
totalSize += length / 1024.0 / 1024.0;
} // NSLog(@"tmp size is %.2f",totalSize); return totalSize;
}

3.在设置里这样使用

#pragma 清理缓存图片

- (void)clearTmpPics
{
[[SDImageCache sharedImageCache] clearDisk];

//    [[SDImageCache sharedImageCache] clearMemory];//可有可无

DLog(@"clear disk");

float tmpSize = [[SDImageCache sharedImageCache] checkTmpSize];

NSString *clearCacheName = tmpSize >= 1 ? [NSString stringWithFormat:@"清理缓存(%.2fM)",tmpSize] : [NSString stringWithFormat:@"清理缓存(%.2fK)",tmpSize * 1024];

[configDataArray replaceObjectAtIndex:2 withObject:clearCacheName];

[configTableView reloadData];
}