今天做小区宝时,用到一个第三方ImagePlayerView用来做图片轮播,用着感觉非常爽, 这里就记录一下,感谢作者。
//
// ImagePlayerView.h
// ImagePlayerView
//
// Created by 陈颜俊 on 14-6-5.
// Copyright (c) 2014年 Chenyanjun. All rights reserved.
//
#import <UIKit/UIKit.h>
typedef NS_ENUM(NSInteger, ICPageControlPosition) {
ICPageControlPosition_TopLeft,
ICPageControlPosition_TopCenter,
ICPageControlPosition_TopRight,
ICPageControlPosition_BottomLeft,
ICPageControlPosition_BottomCenter,
ICPageControlPosition_BottomRight
};
@protocol ImagePlayerViewDelegate;
@interface ImagePlayerView : UIView
@property (nonatomic, assign) id<ImagePlayerViewDelegate> imagePlayerViewDelegate;
@property (nonatomic, assign) BOOL autoScroll; // default is YES, set NO to turn off autoScroll
@property (nonatomic, assign) NSUInteger scrollInterval; // scroll interval, unit: second, default is 2 seconds
@property (nonatomic, assign) ICPageControlPosition pageControlPosition; // pageControl position, defautl is bottomright
@property (nonatomic, assign) BOOL hidePageControl; // hide pageControl, default is NO
/**
* Init image player
*
* @param imageURLs NSURL array, image path
* @param placeholder placeholder image
* @param delegate delegate
* @deprecated use - (void)initWithCount:(NSInteger)count delegate:(id<ImagePlayerViewDelegate>)delegate instead
*/
- (void)initWithImageURLs:(NSArray *)imageURLs placeholder:(UIImage *)placeholder delegate:(id<ImagePlayerViewDelegate>)delegate DEPRECATED_ATTRIBUTE;
/**
* Init image player
*
* @param imageURLs NSURL array, image path
* @param placeholder placeholder image
* @param delegate delegate
* @param edgeInsets scroll view edgeInsets
* @deprecated use - (void)initWithCount:(NSInteger)count delegate:(id<ImagePlayerViewDelegate>)delegate edgeInsets:(UIEdgeInsets)edgeInsets instead
*/
- (void)initWithImageURLs:(NSArray *)imageURLs placeholder:(UIImage *)placeholder delegate:(id<ImagePlayerViewDelegate>)delegate edgeInsets:(UIEdgeInsets)edgeInsets DEPRECATED_ATTRIBUTE;
/**
* Init image player
*
* @param count
* @param delegate
*/
- (void)initWithCount:(NSInteger)count delegate:(id<ImagePlayerViewDelegate>)delegate;
/**
* Init image player
*
* @param count
* @param delegate
* @param edgeInsets scroll view edgeInsets
*/
- (void)initWithCount:(NSInteger)count delegate:(id<ImagePlayerViewDelegate>)delegate edgeInsets:(UIEdgeInsets)edgeInsets;
@end
@protocol ImagePlayerViewDelegate <NSObject>
@required
/**
* Init imageview
*
* @param imagePlayerView ImagePlayerView object
* @param imageView UIImageView object
* @param index index of imageview
*/
- (void)imagePlayerView:(ImagePlayerView *)imagePlayerView loadImageForImageView:(UIImageView *)imageView index:(NSInteger)index;
@optional
/**
* Tap ImageView action
*
* @param imagePlayerView ImagePlayerView object
* @param index index of imageview
* @param imageURL image url
* @deprecated use - (void)imagePlayerView:(ImagePlayerView *)imagePlayerView didTapAtIndex:(NSInteger)index instead
*/
- (void)imagePlayerView:(ImagePlayerView *)imagePlayerView didTapAtIndex:(NSInteger)index imageURL:(NSURL *)imageURL DEPRECATED_ATTRIBUTE;
/**
* Tap ImageView action
*
* @param imagePlayerView ImagePlayerView object
* @param index index of imageview
*/
- (void)imagePlayerView:(ImagePlayerView *)imagePlayerView didTapAtIndex:(NSInteger)index;
@end//
// ImagePlayerView.m
// ImagePlayerView
//
// Created by 陈颜俊 on 14-6-5.
// Copyright (c) 2014年 Chenyanjun. All rights reserved.
//
#import "ImagePlayerView.h"
#define kStartTag 1000
#define kDefaultScrollInterval 2
@interface ImagePlayerView() <UIScrollViewDelegate>
@property (nonatomic, strong) UIScrollView *scrollView;
//@property (nonatomic, strong) NSArray *imageURLs;
@property (nonatomic, assign) NSInteger count;
@property (nonatomic, strong) NSTimer *autoScrollTimer;
@property (nonatomic, strong) UIPageControl *pageControl;
@property (nonatomic, strong) NSMutableArray *pageControlConstraints;
@end
@implementation ImagePlayerView
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
[self _init];
}
return self;
}
- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self) {
[self _init];
}
return self;
}
- (id)init
{
self = [super init];
if (self) {
[self _init];
}
return self;
}
- (void)_init
{
self.scrollInterval = kDefaultScrollInterval;
// scrollview
self.scrollView = [[UIScrollView alloc] init];
[self addSubview:self.scrollView];
self.scrollView.translatesAutoresizingMaskIntoConstraints = NO;
self.scrollView.pagingEnabled = YES;
self.scrollView.bounces = NO;
self.scrollView.showsHorizontalScrollIndicator = NO;
self.scrollView.showsVerticalScrollIndicator = NO;
self.scrollView.directionalLockEnabled = YES;
self.scrollView.delegate = self;
// UIPageControl
self.pageControl = [[UIPageControl alloc] init];
self.pageControl.translatesAutoresizingMaskIntoConstraints = NO;
self.pageControl.numberOfPages = self.count;
self.pageControl.currentPage = 0;
[self addSubview:self.pageControl];
NSArray *pageControlVConstraints = [NSLayoutConstraint constraintsWithVisualFormat:@"V:[pageControl]-0-|"
options:kNilOptions
metrics:nil
views:@{@"pageControl": self.pageControl}];
NSArray *pageControlHConstraints = [NSLayoutConstraint constraintsWithVisualFormat:@"H:[pageControl]-|"
options:kNilOptions
metrics:nil
views:@{@"pageControl": self.pageControl}];
self.pageControlConstraints = [NSMutableArray arrayWithArray:pageControlVConstraints];
[self.pageControlConstraints addObjectsFromArray:pageControlHConstraints];
[self addConstraints:self.pageControlConstraints];
}
// @deprecated use - (void)initWithCount:(NSInteger)count delegate:(id<ImagePlayerViewDelegate>)delegate instead
- (void)initWithImageURLs:(NSArray *)imageURLs placeholder:(UIImage *)placeholder delegate:(id<ImagePlayerViewDelegate>)delegate
{
[self initWithCount:imageURLs.count delegate:delegate edgeInsets:UIEdgeInsetsZero];
}
// @deprecated use - (void)initWithCount:(NSInteger)count delegate:(id<ImagePlayerViewDelegate>)delegate edgeInsets:(UIEdgeInsets)edgeInsets instead
- (void)initWithImageURLs:(NSArray *)imageURLs placeholder:(UIImage *)placeholder delegate:(id<ImagePlayerViewDelegate>)delegate edgeInsets:(UIEdgeInsets)edgeInsets
{
[self initWithCount:imageURLs.count delegate:delegate edgeInsets:edgeInsets];
}
- (void)initWithCount:(NSInteger)count delegate:(id<ImagePlayerViewDelegate>)delegate
{
[self initWithCount:count delegate:delegate edgeInsets:UIEdgeInsetsZero];
}
- (void)initWithCount:(NSInteger)count delegate:(id<ImagePlayerViewDelegate>)delegate edgeInsets:(UIEdgeInsets)edgeInsets
{
self.count = count;
self.imagePlayerViewDelegate = delegate;
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:[NSString stringWithFormat:@"V:|-%d-[scrollView]-%d-|", (int)edgeInsets.top, (int)edgeInsets.bottom]
options:kNilOptions
metrics:nil
views:@{@"scrollView": self.scrollView}]];
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:[NSString stringWithFormat:@"H:|-%d-[scrollView]-%d-|", (int)edgeInsets.left, (int)edgeInsets.right]
options:kNilOptions
metrics:nil
views:@{@"scrollView": self.scrollView}]];
if (count == 0) {
return;
}
self.pageControl.numberOfPages = count;
self.pageControl.currentPage = 0;
CGFloat startX = self.scrollView.bounds.origin.x;
CGFloat width = self.bounds.size.width - edgeInsets.left - edgeInsets.right;
CGFloat height = self.bounds.size.height - edgeInsets.top - edgeInsets.bottom;
for (int i = 0; i < count; i++) {
startX = i * width;
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(startX, 0, width, height)];
imageView.contentMode = UIViewContentModeScaleToFill;
imageView.tag = kStartTag + i;
imageView.userInteractionEnabled = YES;
imageView.translatesAutoresizingMaskIntoConstraints = NO;
[imageView addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapGesture:)]];
[imageView addConstraint:[NSLayoutConstraint constraintWithItem:imageView attribute:NSLayoutAttributeWidth relatedBy:NSLayoutRelationEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:1.0 constant:width]];
[imageView addConstraint:[NSLayoutConstraint constraintWithItem:imageView attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:1.0 constant:height]];
[self.imagePlayerViewDelegate imagePlayerView:self loadImageForImageView:imageView index:i];
[self.scrollView addSubview:imageView];
}
// constraint
NSMutableDictionary *viewsDictionary = [NSMutableDictionary dictionary];
NSMutableArray *imageViewNames = [NSMutableArray array];
for (int i = kStartTag; i < kStartTag + count; i++) {
NSString *imageViewName = [NSString stringWithFormat:@"imageView%d", i - kStartTag];
[imageViewNames addObject:imageViewName];
UIImageView *imageView = (UIImageView *)[self.scrollView viewWithTag:i];
[viewsDictionary setObject:imageView forKey:imageViewName];
}
[self.scrollView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:[NSString stringWithFormat:@"V:|-0-[%@]-0-|", [imageViewNames objectAtIndex:0]]
options:kNilOptions
metrics:nil
views:viewsDictionary]];
NSMutableString *hConstraintString = [NSMutableString string];
[hConstraintString appendString:@"H:|-0"];
for (NSString *imageViewName in imageViewNames) {
[hConstraintString appendFormat:@"-[%@]-0", imageViewName];
}
[hConstraintString appendString:@"-|"];
[self.scrollView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:hConstraintString
options:NSLayoutFormatAlignAllTop
metrics:nil
views:viewsDictionary]];
self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * count, self.scrollView.frame.size.height);
self.scrollView.contentInset = UIEdgeInsetsZero;
}
- (void)handleTapGesture:(UIGestureRecognizer *)tapGesture
{
UIImageView *imageView = (UIImageView *)tapGesture.view;
NSInteger index = imageView.tag - kStartTag;
if (self.imagePlayerViewDelegate && [self.imagePlayerViewDelegate respondsToSelector:@selector(imagePlayerView:didTapAtIndex:)]) {
[self.imagePlayerViewDelegate imagePlayerView:self didTapAtIndex:index];
}
}
#pragma mark - auto scroll
- (void)setAutoScroll:(BOOL)autoScroll
{
_autoScroll = autoScroll;
if (autoScroll) {
if (!self.autoScrollTimer || !self.autoScrollTimer.isValid) {
self.autoScrollTimer = [NSTimer scheduledTimerWithTimeInterval:self.scrollInterval target:self selector:@selector(handleScrollTimer:) userInfo:nil repeats:YES];
}
} else {
if (self.autoScrollTimer && self.autoScrollTimer.isValid) {
[self.autoScrollTimer invalidate];
self.autoScrollTimer = nil;
}
}
}
- (void)setScrollInterval:(NSUInteger)scrollInterval
{
_scrollInterval = scrollInterval;
if (self.autoScrollTimer && self.autoScrollTimer.isValid) {
[self.autoScrollTimer invalidate];
self.autoScrollTimer = nil;
}
self.autoScrollTimer = [NSTimer scheduledTimerWithTimeInterval:self.scrollInterval target:self selector:@selector(handleScrollTimer:) userInfo:nil repeats:YES];
}
- (void)handleScrollTimer:(NSTimer *)timer
{
if (self.count == 0) {
return;
}
NSInteger currentPage = self.pageControl.currentPage;
NSInteger nextPage = currentPage + 1;
if (nextPage == self.count) {
nextPage = 0;
}
BOOL animated = YES;
if (nextPage == 0) {
animated = NO;
}
UIImageView *imageView = (UIImageView *)[self.scrollView viewWithTag:(nextPage + kStartTag)];
[self.scrollView scrollRectToVisible:imageView.frame animated:animated];
self.pageControl.currentPage = nextPage;
}
#pragma mark - scroll delegate
-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
// disable v direction scroll
if (scrollView.contentOffset.y > 0) {
[scrollView setContentOffset:CGPointMake(scrollView.contentOffset.x, 0)];
}
}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
// when user scrolls manually, stop timer and start timer again to avoid next scroll immediatelly
if (self.autoScrollTimer && self.autoScrollTimer.isValid) {
[self.autoScrollTimer invalidate];
}
self.autoScrollTimer = [NSTimer scheduledTimerWithTimeInterval:self.scrollInterval target:self selector:@selector(handleScrollTimer:) userInfo:nil repeats:YES];
// update UIPageControl
CGRect visiableRect = CGRectMake(scrollView.contentOffset.x, scrollView.contentOffset.y, scrollView.bounds.size.width, scrollView.bounds.size.height);
NSInteger currentIndex = 0;
for (UIImageView *imageView in scrollView.subviews) {
if ([imageView isKindOfClass:[UIImageView class]]) {
if (CGRectContainsRect(visiableRect, imageView.frame)) {
currentIndex = imageView.tag - kStartTag;
break;
}
}
}
self.pageControl.currentPage = currentIndex;
}
#pragma mark -
- (void)setPageControlPosition:(ICPageControlPosition)pageControlPosition
{
NSString *vFormat = nil;
NSString *hFormat = nil;
switch (pageControlPosition) {
case ICPageControlPosition_TopLeft: {
vFormat = @"V:|-0-[pageControl]";
hFormat = @"H:|-[pageControl]";
break;
}
case ICPageControlPosition_TopCenter: {
vFormat = @"V:|-0-[pageControl]";
hFormat = @"H:|[pageControl]|";
break;
}
case ICPageControlPosition_TopRight: {
vFormat = @"V:|-0-[pageControl]";
hFormat = @"H:[pageControl]-|";
break;
}
case ICPageControlPosition_BottomLeft: {
vFormat = @"V:[pageControl]-0-|";
hFormat = @"H:|-[pageControl]";
break;
}
case ICPageControlPosition_BottomCenter: {
vFormat = @"V:[pageControl]-0-|";
hFormat = @"H:|[pageControl]|";
break;
}
case ICPageControlPosition_BottomRight: {
vFormat = @"V:[pageControl]-0-|";
hFormat = @"H:[pageControl]-|";
break;
}
default:
break;
}
[self removeConstraints:self.pageControlConstraints];
NSArray *pageControlVConstraints = [NSLayoutConstraint constraintsWithVisualFormat:vFormat
options:kNilOptions
metrics:nil
views:@{@"pageControl": self.pageControl}];
NSArray *pageControlHConstraints = [NSLayoutConstraint constraintsWithVisualFormat:hFormat
options:kNilOptions
metrics:nil
views:@{@"pageControl": self.pageControl}];
[self.pageControlConstraints removeAllObjects];
[self.pageControlConstraints addObjectsFromArray:pageControlVConstraints];
[self.pageControlConstraints addObjectsFromArray:pageControlHConstraints];
[self addConstraints:self.pageControlConstraints];
}
- (void)setHidePageControl:(BOOL)hidePageControl
{
self.pageControl.hidden = hidePageControl;
}
@end用的时候要首先引入类库ImageIO.framework
初始化View
self.imagePlayerView=[[ImagePlayerView alloc]init];
self.imagePlayerView.frame=CGRectMake(0, 0, self.view.bounds.size.width, 150);
[self.imagePlayerView initWithCount:self.homeData.adList.count delegate:self];
self.imagePlayerView.scrollInterval = 3.0f;
self.imagePlayerView.pageControlPosition = ICPageControlPosition_BottomCenter;
self.imagePlayerView.hidePageControl = NO;实现代理ImagePlayerViewDelegate
#pragma mark --- ---ImagePlayerViewDelegate
- (void)imagePlayerView:(ImagePlayerView *)imagePlayerView loadImageForImageView:(UIImageView *)imageView index:(NSInteger)index
{
AdModel *admodel=[self.homeData.adList objectAtIndex:index];
NSURL *url=[NSURL URLWithString:admodel.imageUrl];
imageView.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:url]];
}
- (void)imagePlayerView:(ImagePlayerView *)imagePlayerView didTapAtIndex:(NSInteger)index
{
NSLog(@"did tap index = %d", (int)index);
}
