UIPageControl如何改变点的大小?
重写setCurrentPage方法即可:
- (void)setCurrentPage:(NSInteger)page {
[super setCurrentPage:page];
for (NSUInteger subviewIndex = 0; subviewIndex < [self.subviews count]; subviewIndex++) {
UIView *subview = [self.subviews objectAtIndex:subviewIndex];
UIImageView *imageView = nil;
if (subviewIndex == page) {
CGFloat w = 8;
CGFloat h = 8;
imageView = [[UIImageView alloc] initWithFrame:CGRectMake(-1.5, -1.5, w, h)];
imageView.image = [UIImage imageNamed:@"banner_red"];
[subview setFrame:CGRectMake(subview.frame.origin.x, subview.frame.origin.y, w, h)];
} else {
CGFloat w = 5;
CGFloat h = 5;
imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, w, h)];
imageView.image = [UIImage imageNamed:@"banner_gray"];
[subview setFrame:CGRectMake(subview.frame.origin.x, subview.frame.origin.y, w, h)];
}
imageView.tag = 10010;
UIImageView *lastImageView = (UIImageView *) [subview viewWithTag:10010];
[lastImageView removeFromSuperview]; //把上一次添加的view移除
[subview addSubview:imageView];
}
}
