iOS file informations.

file.m

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *dir = [paths objectAtIndex:0];
NSLog(@"dir=%@", dir);
NSString *filePath = [dir stringByAppendingPathComponent:@"hoge.flv"];
NSLog(@"filePath=%@", filePath);
    
NSFileManager *fm = [NSFileManager defaultManager];
BOOL exists = [fm fileExistsAtPath:filePath isDirectory:NO];
BOOL writable = [fm isWritableFileAtPath:filePath];
BOOL readable = [fm isReadableFileAtPath:filePath];
BOOL executable = [fm isExecutableFileAtPath:filePath];
NSDictionary *file = [fm attributesOfItemAtPath:filePath error:nil];
NSLog(@"exists=%d, writable=%d, readable=%d, executable=%d, size=%lld", exists, writable, readable, executable, [file fileSize]);