iOS獲取檔案長度和檔案大小
阿新 • • 發佈:2019-01-21
#pragma 獲取檔案大小 - (CGFloat) getFileSize:(NSString *)path { NSFileManager *fileManager = [[NSFileManager alloc] init]; float filesize = -1.0; if ([fileManager fileExistsAtPath:path]) { NSDictionary *fileDic = [fileManager attributesOfItemAtPath:path error:nil];//獲取檔案的屬性 unsigned long long size = [[fileDic objectForKey:NSFileSize] longLongValue]; filesize = 1.0*size/1024; } return filesize; } //獲取檔案的時間 - (CGFloat) getVideoLength:(NSURL *)URL { NSDictionary *opts = [NSDictionary dictionaryWithObject:[NSNumber numberWithBool:NO] forKey:AVURLAssetPreferPreciseDurationAndTimingKey]; AVURLAsset *urlAsset = [AVURLAsset URLAssetWithURL:URL options:opts]; float second = 0; second = urlAsset.duration.value/urlAsset.duration.timescale; return second; }