-(void) setCurrentPage:(NSInteger)page
{
[super setCurrentPage:page];
[self updateDots];
}
-(instancetype)initWithFrame:(CGRect)frame
{
if (self ==[super initWithFrame:frame]) {
activeImage = [UIImage imageNamed:@"SWIPE_ICON_CLICK"];
inactiveImage = [UIImage imageNamed:@"SWIPE_ICON_UNCLICK"];
}
return self;
}
-(void) updateDots
{
for (int i = 0; i < [self.subviews count]; i++){
UIImageView * dot = [self imageViewForSubview: [self.subviews objectAtIndex: i]];
if (i == self.currentPage) dot.image = activeImage;
else dot.image = inactiveImage;
}
}
- (UIImageView *) imageViewForSubview: (UIView *) view
{
UIImageView * dot = nil;
if ([view isKindOfClass: [UIView class]])
{
for (UIView* subview in view.subviews)
{
if ([subview isKindOfClass:[UIImageView class]])
{
dot = (UIImageView *)subview;
break;
}
}
if (dot == nil)
{
dot = [[UIImageView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, view.frame.size.width, view.frame.size.height)];
[view addSubview:dot];
}
}
else
{
dot = (UIImageView *) view;
}
return dot;
}
