在调用drawRect之前初始化自定义UIView

Question

I need to customize a UIView by calling its drawRect method, so I subclass UIView and name it MyView. The drawing will depend on some variable(myString in this example), so I need to initialize the variable before drawRect starts. My MyView.h looks like

@interface MyView : UIView
@property (strong, nonatomic) NSString *myString;
@end

In the viewController.m, if I do the following

MyView *myView = [MyView alloc] initWithFrame:someRect];
[myView setMyString:@"string value"];

[self.view addSubview:myView];

everything works as expected, the myString is set before drawRect get called.

The problem I am trying to solve is if I want to add the MyView to the view controller by using Interface Builder(drag and drop an UIView to the view controller's view and change its class to MyView), where is the point that I can set myString before drawRect gets called?

Answer 1

set it in your view controller

-(void) viewDidLoad {
    MyView *myView = self.view;
   [myView setMyString:@"string value"];
 ]