模拟器中的iPhone目录

Question

我正在玩这个代码，它在iPhone模拟器中不起作用。

-(NSString *)localFilePath:(BOOL)forSave {
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *documentsPath = [documentsDirectory stringByAppendingPathComponent:@"msaas.config.xml"];
    if (forSave || [[NSFileManager defaultManager] fileExistsAtPath:documentsPath]) {
        return documentsPath;
    }
    else {
        return [[NSBundle mainBundle] pathForResource:@"msaas.config" ofType:@"xml"];
    }
}

是因为模拟器没有像iPhone这样的目录吗？