獲得APP緩存大小並清除緩存 iOS

 

讀取緩存大小，目前計算了SDWebimage緩存大小，Documents目錄下某個文件夾大小（類似可以繼續添加）

-(CGFloat)readCacheSize;

 

清空緩存，目前清空了SDWebimage緩存，Documents目錄下某個文件夾緩存（類似可以繼續添加），Webview緩存

typedef void(^clearCacheSuccessBlock)(void);

-(void)clearCacheWithCompletionBlock:(nullable clearCacheSuccessBlock)completionBlock;

 

代碼示例

-(CGFloat)readCacheSize
{
    CGFloat size=0;
    //獲取SDWebImage磁盤緩存大小
    CGFloat size_SDWebImage = [self readSDWebImageCacheSize];
    size = size + size_SDWebImage;
    //獲取短視頻背景音樂緩存大小
    CGFloat size_ShortVideoBgm = [self readShortVideoBgmCacheSize];
    size = size + size_ShortVideoBgm;
    
    CGFloat sizeMB = size>0?(size/1024.0/1024.0):0;
    return sizeMB;
}

#pragma mark - 清空緩存
-(void)clearCacheWithCompletionBlock:(nullable clearCacheSuccessBlock)completionBlock{
    [HUDManager showLoadingHUDView:[UIViewController currentViewController].view withText:@"正在清除緩存···"];
    
    
    //清除H5緩存
    [self clearURLCacheAndHTTPCookie];
    
    //清除SDWebImage緩存
    [self clearSDWebImageCache];
    
    //清除短視頻背景音樂緩存
    [self clearShortVideoBgmCache];
   
    
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        [HUDManager  hideHUDView];
        [[UIViewController currentViewController].view showMessageWithText:@"已清空緩存"];
    });
}

//獲取SDWebImage磁盤緩存大小
-(CGFloat)readSDWebImageCacheSize
{
    //SDImageCache
    NSLog(@"圖片緩存路徑%@",[SDImageCache sharedImageCache].diskCachePath);
    NSUInteger size = [[SDImageCache sharedImageCache] totalDiskSize];
    return size;
}

#pragma mark - 清空緩存
-(void)clearSDWebImageCache{
    [[SDImageCache sharedImageCache] clearDiskOnCompletion:^{
        
    }];
    [[SDImageCache sharedImageCache] clearMemory];
}

//清除webview緩存
- (void)clearURLCacheAndHTTPCookie
{
    NSSet *websiteDataTypes = [NSSet setWithArray:@[
                                                     WKWebsiteDataTypeDiskCache,
                                                     WKWebsiteDataTypeOfflineWebApplicationCache,
                                                     WKWebsiteDataTypeMemoryCache,
                                                     WKWebsiteDataTypeLocalStorage,
                                                     WKWebsiteDataTypeCookies,
                                                     WKWebsiteDataTypeSessionStorage,
                                                     WKWebsiteDataTypeIndexedDBDatabases,
                                                     WKWebsiteDataTypeWebSQLDatabases
                                                     ]];
    NSDate *dateFrom = [NSDate dateWithTimeIntervalSince1970:0];
    [[WKWebsiteDataStore defaultDataStore] removeDataOfTypes:websiteDataTypes modifiedSince:dateFrom completionHandler:^{
        // 結束回調
    }];
}

//獲取短視頻背景音樂緩存大小
-(CGFloat)readShortVideoBgmCacheSize
{
    float size = 0;
    NSString *path = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/bgm"];
    if(![[NSFileManager defaultManager] fileExistsAtPath:path]){
        return 0;
    }
    size=(float)[self totalSizeAtPath:path];
    return size;
}

//清除短視頻背景音樂緩存
-(void)clearShortVideoBgmCache
{
    NSString *path = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/bgm"];
    [[NSFileManager defaultManager] removeItemAtPath:path error:nil];
}

//獲得當前文件夾及下面所有文件大小
- (uint64_t)totalSizeAtPath:(NSString *)path {
    NSFileManager *fileManager = NSFileManager.defaultManager;
    NSDictionary<NSString *, id> *attributes = [fileManager attributesOfItemAtPath:path error:NULL];
    uint64_t totalSize = [attributes fileSize];
    
    for (NSString *fileName in [fileManager enumeratorAtPath:path]) {
        attributes = [fileManager attributesOfItemAtPath:[path stringByAppendingPathComponent:fileName] error:NULL];
        totalSize += [attributes fileSize];
    }
    return totalSize;
}

 

備注：

以下代碼只能獲取當前文件夾大小，不能獲得子目錄文件夾大小

[attributes fileSize];