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sdwebimage如何获取缓存大小以及清除缓存

2015-09-23 16:31 603 查看
sdwebimage如何获取缓存大小以及清除缓存

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;

}

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];
}
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