(copypasta from my SO post.. where no one has answered so far :*( )
I am having a terrible time trying to pass a bit of information from my GraphingCalcView to myGraphingCalcViewController -_-
Basically, I can know about the width of my screen from my GraphingCalcView using the functionviewSize = self.bounds.size.width / scale .. pretty simple stuff. I'd like to pass viewSizefrom the View to my Controller (GraphingCalcViewController), so that it can do a simple transformation (for example, do viewSize + 1), and pass it back to to the View.
I have (and believe) that I set up the whole protocal/datSource/delegation thing correct (I really just followed the example of "Happiness" presented in the lecture), so I won't paste the details.
I have two equations in my protocol listed in the View's header file..maybe something is wrong here:
-(float) calcResult: (GraphingView *) sender;
-(void) passingVariable: (float) variable;
Basically, in my View, I call the @optional to pass viewSize: [self.dataSource passingVariable:viewSize] , then in my Controller, I set viewSize to a Model property calledself.result so that: self.result = viewSize, and then return the model property:
Now, in my View, when I assign a float to [self.dataSource calcResult:self], I always get a 0, instead of any value that I passed to it.. X_X.. I was wondering if my whole concept about passing stuff from View to the Controller is correct, and what I am doing wrong.. Thanks for reading!