Reloading / unloading the iOS-embedded OF app

iOS
#1

Hello, I am trying to load data to OF app embedded in UIViewController

So I can load the app, pass data to it like this:

In OF app I have :

class CircleApp : public ofxiOSApp {


	public:

     CircleApp (NSString* logString);
    ~CircleApp ();
    
    void loadLog (NSString* logString);
    NSString* logFile;

	}


void CircleApp::loadLog (NSString* logString) {
    
    logFile = logString;
    NSString * file = [[NSBundle mainBundle] pathForResource:logFile ofType:@"csv"];
    
    csv.loadFile([file UTF8String]);

}

//--------------------------------------------------------------
CircleApp :: CircleApp (NSString* logString) {

    logFile = logString;
    
    cout << "creating CircleApp" << endl;
}

//--------------------------------------------------------------
CircleApp :: ~CircleApp () {
    cout << "destroying CircleApp" << endl;
}




//  then in My ViewController:
- (void)viewDidLoad
{
NSString *newLogFile = [Utils getCurrentLog];
circleApp = new CircleApp(newLogFile);
}

- (void) viewWillDisappear:(BOOL)animated{
 
// I assume something like this?    
    circleApp->exit();
    
}


- (void) viewWillAppear:(BOOL)animated{
	
	/* tried this for example, get notifications from OF app that the log is loaded, but it is not reflected in the draw
	NSString *newLogFile = [Utils getCurrentLog];
	circleApp->loadLog(newLogFile);

	*/
}

Question - what should I put into the viewWillDisappear: in the viewController so that I can unload the app and then reload it with newLog?

#2

Typically, if you created the instance using new, use delete to destroy it. This will remove it from memory.

In your example, though, maybe you don’t need to create & destroy the circleApp instance every time. Maybe just loading in a new log file each time (and overwriting the old log data) would suffice…