scrollView封装广告轮播实例代码(Hank版)
Posted PJXWang
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#import <UIKit/UIKit.h>
@interface PJXPageView : UIView
/* 圆点颜色*/
@property(strong,nonatomic)UIColor *PJX_currentColor;
/*没选中的圆点颜色*/
@property(strong,nonatomic)UIColor *PJX_otherColor;
/* 图片数据*/
@property(strong,nonatomic)NSArray *PJX_imageNames;
+(instancetype)pageView;
@end
//
// PJXPageView.m
// AdShow_PJXWang
//
// Created by 王俏 on 16/9/26.
// Copyright © 2016年 wangqiao. All rights reserved.
//
#import "PJXPageView.h"
@interface PJXPageView()<UIScrollViewDelegate>
@property (weak, nonatomic) IBOutlet UIScrollView *scrollView;
@property (weak, nonatomic) IBOutlet UIPageControl *pageControl;
@property (nonatomic,strong) NSTimer *timer;
@end
@implementation PJXPageView
-(instancetype)initWithFrame:(CGRect)frame{
if (self = [super initWithFrame:frame]) {
self = [PJXPageView pageView];
}
return self;
}
-(void)awakeFromNib{
// NSTimer *timer = [NSTimer timerWithTimeInterval:1.5 target:self selector:@selector(nextPage:) userInfo:nil repeats:YES];
// [timer fire];
self.timer = [NSTimer scheduledTimerWithTimeInterval:1.5 target:self selector:@selector(nextPage:) userInfo:nil repeats:YES];
[[NSRunLoop mainRunLoop]addTimer:self.timer forMode:NSRunLoopCommonModes];
}
-(void)nextPage:(NSTimer*)timer
{
NSInteger page = self.pageControl.currentPage +1;
if (page == self.pageControl.numberOfPages) {
page = 0;
}
CGPoint offset = self.scrollView.contentOffset;
offset.x = page *self.scrollView.frame.size.width;
[self.scrollView setContentOffset:offset animated:YES];
}
-(void)setPJX_imageNames:(NSArray *)pjx_imageNames
{
_PJX_imageNames = pjx_imageNames;
for (int i = 0 ; i < pjx_imageNames.count; i++) {
UIImageView *imageView = [[UIImageView alloc]init];
imageView.contentMode = UIViewContentModeScaleAspectFill;
imageView.clipsToBounds = YES;
imageView.image = [UIImage imageNamed:pjx_imageNames[i]];
[self.scrollView addSubview:imageView];
}
self.pageControl.numberOfPages = pjx_imageNames.count;
}
-(void)setPJX_currentColor:(UIColor *)pjx_currentColor{
_PJX_currentColor = pjx_currentColor;
self.pageControl.currentPageIndicatorTintColor = pjx_currentColor;
}
-(void)setPJX_otherColor:(UIColor *)pjx_otherColor{
_PJX_otherColor = pjx_otherColor;
self.pageControl.pageIndicatorTintColor = pjx_otherColor;
}
-(void)layoutSubviews{
[super layoutSubviews];
[self.scrollView setContentSize:CGSizeMake(self.scrollView.frame.size.width*self.PJX_imageNames.count, 0)];
for (int i = 0; i < self.scrollView.subviews.count; i++) {
UIImageView *imageView = self.scrollView.subviews[i];
[imageView setFrame:CGRectMake(i*self.scrollView.frame.size.width, 0, self.scrollView.frame.size.width, self.scrollView.frame.size.height)];
}
}
+(instancetype)pageView{
//实例化自己
PJXPageView *pageView =[[[NSBundle mainBundle]loadNibNamed:@"PJXPageView" owner:nil options:nil] firstObject];
[pageView.scrollView setDelegate:pageView];
return pageView;
}
#pragma mark -- UIScrollViewDelegate
-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
NSUInteger index = (NSUInteger)(scrollView.contentOffset.x/scrollView.frame.size.width+0.5);
self.pageControl.currentPage = index;
}
-(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
[self stopTimer];
}
-(void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
self.timer = [NSTimer scheduledTimerWithTimeInterval:1.5 target:self selector:@selector(nextPage:) userInfo:nil repeats:YES];
}
-(void)stopTimer
{
[self.timer invalidate];
}
@end
使用:
PJXPageView *page = [[PJXPageView alloc]init];
page.PJX_imageNames = @[@"001",@"002",@"003",@"004"];
page.PJX_currentColor = [UIColor blueColor];
page.PJX_otherColor = [UIColor grayColor];
page.frame = CGRectMake(100, 100, 220, 220);
[self.view addSubview:page];
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