ios - How to use UIButton as Toggle Button?

Question

I am trying to create a toggle button for each cell in my table. When pressed, it will change the image and when pressed again it will change the image again -- Toggle.

In the UIButton class I don't see a selected state.

I'm looking for a way to create a toggle button with UIButton so that I can change the state on each click.

This is how I'm doing it in rubymotion right now using rmq

@fav_button.on(:touch) do |sender|
  puts "pressed fav button for id: " + data[:id] + " and name: " + data[:name]
  #how do I change the state here?
end

Answer 1

You can create toggle button easily, you just need to set respective images for respective states, after that, you can use the selected property to toggle between these images.

I made a pure objective-c code to show how you can do that, but you can set the images anyway in Storyboards ou Xibs too, check out:

// First, set the images for normal state and selected state
[button setImage:normalImage forState:UIControlStateNormal];
[button setImage:selectedImage forState:UIControlStateSelected];

// Don't forget to add an action handler to toggle the selected property
[button addTarget:self action:@selector(buttonTouch:withEvent:) forControlEvents:UIControlEventTouchUpInside];

// Now, in your button action handler, you can do something like this:
- (void)buttonTouch:(UIButton *)aButton withEvent:(UIEvent *)event
{
  aButton.selected = !aButton.selected;
}

I hope this can help you.