1.找到SDImageCache类2.添加如下方法：
- (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;
}
新版的SDImageCache类，已增加此方法
[[SDImageCache sharedImageCache] getSize];
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];
}
