我有一个需要能够写入 /var/mobile/Applications/.../Documents 目录的应用程序。这工作正常，但由于某种原因，现在当我运行我的代码时，NSFileManager createFileAtPath 每次都返回 NO。我不知道为什么会发生这种情况，还有其他人吗？我想知道我是否以某种方式意外更改了一些目标设置......
任何帮助表示赞赏，
罗宾
注意：这发生在我尝试写入的任何数据（NSString、NSDictionary 等）
NSDictionary *dataToWrite = [[NSDictionary alloc] initWithObjectsAndKeys:@"1234", @"id", @"hfjk", @"password",nil];
NSArray *arrayPaths = NSSearchPathForDirectoriesInDomains(
NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docDirectory = [arrayPaths objectAtIndex:0];
filePath = [docDirectory stringByAppendingString:@"/sample-file-name"];
NSFileManager *fileMgr;
NSMutableData *data = [[NSMutableData alloc] init];
NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data];
[archiver encodeObject:dataToWrite forKey:@"any-key"];
[archiver finishEncoding];
BOOL status = [fileMgr createFileAtPath:path contents:data attributes:nil];
if (status)
NSLog(@"Created file at path: %@",path);
else
NSLog(@"Failed to create file at path: %@",path);