创建：2012.03.01转：来自F。
＝＝＝CustomPageControl.h＝＝＝
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
@interface CustomPageControl : UIPageControl {
UIImage* imageNormal;
UIImage* imageCurrent;
}
@property (nonatomic, retain) UIImage* imageNormal;
@property (nonatomic, retain) UIImage* imageCurrent;
@end
＝＝＝CustomPageControl.m＝＝＝
#import "CustomPageControl.h"
@interface CustomPageControl(Private)
- (void) updateDots;
@end
@implementation CustomPageControl
@synthesize imageNormal,imageCurrent;
/** override to update dots */
- (void) setCurrentPage:(NSInteger)currentPage
{
[super setCurrentPage:currentPage];
// update dot views
[self updateDots];
}
/** override to update dots */
- (void) updateCurrentPageDisplay
{
[super updateCurrentPageDisplay];
// update dot views
[self updateDots];
}
/** Override setImageNormal */
- (void) setImageNormal:(UIImage*)image
{
[imageNormal release];
imageNormal = [image retain];
// update dot views
[self updateDots];
}
/** Override setImageCurrent */
- (void) setImageCurrent:(UIImage*)image
{
[imageCurrent release];
imageCurrent = [image retain];
// update dot views
[self updateDots];
}
- (void) endTrackingWithTouch:(UITouch*)touch withEvent:(UIEvent*)event
{
[super endTrackingWithTouch:touch withEvent:event];
[self updateDots];
}
#pragma mark -
#pragma mark updateDots
- (void) updateDots
{
if(imageNormal || imageCurrent)
{
// Get subviews
NSArray* dotViews = self.subviews;
for(int i = 0; i < dotViews.count; ++i)
{
UIImageView* dot = [dotViews objectAtIndex:i];
// Set image
dot.image = (i == self.currentPage) ? imageCurrent : imageNormal;
}
}
}
#pragma mark-
#pragma mark dealloc
- (void) dealloc
{
[imageNormal release];
imageNormal = nil;
[imageCurrent release];
imageCurrent = nil;
[super dealloc];
}
@end
＋＋＋＋＋