SDWebImage手动清除缓存的方法

1.找到SDImageCache类

2.添加如下方法：

[objc] view plaincopyprint?

1. - (float)checkTmpSize
2. {
3. float totalSize = 0;
4. NSDirectoryEnumerator *fileEnumerator = [[NSFileManager defaultManager] enumeratorAtPath:diskCachePath];
5. for (NSString *fileName in fileEnumerator)
6. {
7. NSString *filePath = [diskCachePath stringByAppendingPathComponent:fileName];
8. NSDictionary *attrs = [[NSFileManager defaultManager] attributesOfItemAtPath:filePath error:nil];
9. unsigned long long length = [attrs fileSize];
10. totalSize += length / 1024.0 / 1024.0;
11. }
12. //    NSLog(@"tmp size is %.2f",totalSize);
13. return totalSize;
14. }

- (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

[objc] view plaincopyprint?

1. #pragma 清理缓存图片
2. - (void)clearTmpPics
3. {
4. [[SDImageCache sharedImageCache] clearDisk];
5. //    [[SDImageCache sharedImageCache] clearMemory];//可有可无
6. DLog(@"clear disk");
7. float tmpSize = [[SDImageCache sharedImageCache] checkTmpSize];
8. NSString *clearCacheName = tmpSize >= 1 ? [NSString stringWithFormat:@"清理缓存(%.2fM)",tmpSize] : [NSString stringWithFormat:@"清理缓存(%.2fK)",tmpSize * 1024];
9. [configDataArray replaceObjectAtIndex:2 withObject:clearCacheName];
10. [configTableView reloadData];
11. }

SDWebImage手动清除缓存的方法