【原】自定义UIPageControl的圆点

1 MyPageControl.h：
2 #import <Foundation/Foundation.h>
3 @interface MyPageControl : UIPageControl
4 {
5     UIImage* activeImage;
6     UIImage* inactiveImage;
7 }
8 @end

 1 MyPageControl.m：
 2 #import "MyPageControl.h"
 3 @implementation GrayPageControl
 4 
 5 -(id) initWithFrame:(CGRect)frame
 6 {
 7 self = [super initWithFrame:frame];
 8 activeImage = [[UIImage imageNamed:@"RedPoint.png"] retain];
 9     inactiveImage = [[UIImage imageNamed:@"BluePoint.png"] retain];
10     return self;
11 }
12 -(void) updateDots
13 {
14     for (int i = 0; i < [self.subviews count]; i++)
15     {
16         UIImageView* dot = [self.subviews objectAtIndex:i];
17         if (i == self.currentPage) dot.image = activeImage;
18         else dot.image = inactiveImage;
19     }
20 }
21 -(void) setCurrentPage:(NSInteger)page
22 {
23     [super setCurrentPage:page];
24     [self updateDots];
25 }
26 @end

pageControl = [[GrayPageControl alloc] initWithFrame:CGRectMake(0.0, 460.0 - (96 + 48) / 2, 320.0, 48.0 /2)];
pageControl.userInteractionEnabled = NO;