How to use a UIButton as a toggle switch

Question

I am using a UIButton of custom type and what I want is use it like a toggle switch with the change of image. Like when it is clicked if previously it was not in selected mo

Answer 1

The only problem here is that you have to use 2 images to achieve toggling. Also you can't use highlighted property because of UIButton (UIControl) automatically sets this property under the hood, to be exact in touchBegan:, touchMoved:, etc. methods. The best way I offer is to simple use subclassing:

@interface ToggleButton : UIButton

@end

@implementation ToggleButton

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
    [super touchesBegan:touches withEvent:event];
    self.highlighted = self.selected = !self.selected;
}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
    [super touchesMoved:touches withEvent:event];
    self.highlighted = self.selected;
}

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
    [super touchesEnded:touches withEvent:event];
    self.highlighted = self.selected;
}

- (void)setSelected:(BOOL)selected{
    [super setSelected:selected];
    self.highlighted = selected;
}

@end

This is quite enough to make your toggle working