I created two UIImageView *image1 and *image2, after I created a NSMutableArray *arrayImage, now I want fill this array
arrayImage = [[NSMutableArray alloc] initWithObjects: image1, image2, nil];
but I created UIImageView and NSMutableArray in a ClassA but I want fill the NSMutableArray in the viewdidload in .m of ClassB, then Xcode tell me that image1 and image2 are undeclared. I just used property and synthesize. What can I do?
use delegation pattern and pass your class a object to class b like
if your class b
id a;
@property (nonatomic, assign) id a;
and synthesize it.
now init your class b in class a then ,
b.a=self;
thats it now your can use in viewdidload in class b as
self.a.arrayImage
and study delegate pattern in internet , you will have clear view. good luck
You can try something like this, you have to keep a reference to classB inside classA so that when you want to add a view to array in classB you can access classB's properties through classA's clasB property. Try something like this.
//ClassA .h file
#import @"ClassB.h"
@interface ClassA : UIViewController {
UIImageView *view1, view2*;
ClassB *classB;
}
@end
//Inside ClassA .m file
-(void)viewDidLoad{
//construct view1 and view2 here or make the IBOutlets and link them in IB
classB = [[ClassB alloc] init];
[classB.imageArray addObject:view1];
[classB.imageArray addObject:view2];
}
//ClassB .h file
@interface ClassB : UIViewController {
NSMutableArray *imageArray;
}
@property(nonatomic, retain) NSMutableArray *imageArray;
@end
//Inside ClassB .m file
@synthesize imageArray;
-(id)init{
if (self = [super init]){
imageArray = [[NSMutableArray alloc] init];
}
return self;
}
-(void)dealloc{
[imageArray release];
[super dealloc];
}
