Hello!
I'm trying to allow hosts to save presets for my AUv3 extension. Currently I save presets as files within the extension itself, but I'd like to support state saving within hosts. My problem is that I can't really reduce my preset format down to parameters in the parameter tree. Can anyone point me in the right direction? I'm happy to clarify anything further.
Hi @JHostetler2, did you find a way to solve this? I have exactly the same issue. Did you have to transform everything you wanted to save into parameters in a parameter tree and then use the fullStateForDocument to be able to save everything? If so, how is the fullStateForDocument used? I really can't find good documentation of how to use this. Thanks.
This is an old post but maybe someone is still looking for a solution. I found that you can just override the fullStateForDocument property and just archive your settings using a Dictionary. No need to play with parameter trees if you don't need your settings to be modified by the Host.
// Save an NSString named setting.
- (NSDictionary<NSString *,id> *)fullStateForDocument {
NSMutableDictionary *state = [[NSMutableDictionary alloc] initWithDictionary: super.fullStateForDocument];
NSDictionary<NSString*, id> *settingsToSave = @{@"setting": setting,};
state[@"savedSettings"] = [NSKeyedArchiver archivedDataWithRootObject:settingsToSave requiringSecureCoding:NO error:nil];
return state;
}
// Retrieve settings
- (void)setFullStateForDocument:(NSDictionary<NSString *,id> *)fullStateForDocument {
NSData *data = (NSData *)fullStateForDocument[@"savedSettings"];
NSDictionary *savedSettings = [NSKeyedUnarchiver unarchivedObjectOfClass:[NSDictionary class] fromData:data error:nil];
setting = (NSString *)savedSettings[@"setting"];
}