UIPageControl自定义点的颜色，图片

系统自带的UIPageControl，点的颜色单调，所以自定义一下。

#import <UIKit/UIKit.h>
@interface SJGreenControl : UIPageControl{UIImage*_activeImage;UIImage*_inactiveImage;}@end#import "SJGreenControl.h"
@implementation SJGreenControl
- (id)initWithFrame:(CGRect)frame{self = [superinitWithFrame:frame];if (self) {_activeImage= [UIImageimageNamed:@"btn_round_selected"];_inactiveImage= [UIImageimageNamed:@"btn_round_unselected"]; }returnself;}- (void)updateDots{for(int i = 0; i< [self.subviewscount]; i++) {UIImageView* dot = [self.subviewsobjectAtIndex:i];
if(i == self.currentPage){ dot.image= _activeImage; }else dot.image= _inactiveImage; }}
- (void)setCurrentPage:(NSInteger)currentPage{ [supersetCurrentPage:currentPage]; [selfupdateDots];}/*// Only override drawRect: if you perform custom drawing.// An empty implementation adversely affects performance during animation.- (void)drawRect:(CGRect)rect{ // Drawing code}*/
@end