我需要在iOS下以编程方式创建一个特定长度的虚拟.m4a文件...
答案 0 :(得分:1)
试试这个
NSError *error = nil;
path = [path stringByAppendingPathComponent:@"tempfile"];
NSURL *URL = [NSURL fileURLWithPath:path];
[[NSFileManager defaultManager]createFileAtPath:path contents:nil attributes:nil]
NSFileHandle *writeFile = [NSFileHandle fileHandleForWritingToURL:URL error:&error];
[writeFile truncateFileAtOffset:4000000000*sizeof(Byte)];