Question

I have this working in C#, but don’t know where to go with Objective C (Xcode specifically).

I have 8 buttons

Stack1, Stack2, etc.

I want to choose Stack(variable) and change the image.

In C# I used
Button Stacks = this.Controls[“Stack” + StackNumber.ToString()] as Button;
Stacks.BackgroundImage = …..

Can I do this in Objective C also?

Answer 1

I hope I understand your question correctly. You want to change button’s image by clicking on another button. You can assign tag property to your different buttons like stack1.tag = 1001; , stack2.tag = 1002; , stack3.tag = 1003;

Now in your button click method :

- (IBAction)buttonStack1Click:(id)sender // for stack1 button
{
   UIButton *tempStack = (UIButton *)[self.view viewWithTag:1003]; //to change image of stack3 button

   // Now change the image of stack3 button
   [tempStack setImage:[UIImage imageNamed:@"su.png"] forState:UIControlStateNormal];

}

Hope it gives an idea…