31.小项目：喜马拉雅 版本2.0
更新说明：添加图片轮播器
------------- ViewController.m -------------
#import "ViewController.h"
#define IMAGE_COUNT 5
@interface ViewController () <UIScrollViewDelegate>
@property (weak, nonatomic) IBOutlet UIScrollView *scrView;
@property (nonatomic, strong) NSArray *arrs;
@property (weak, nonatomic) IBOutlet UIScrollView *lunBoQi;
@property (weak, nonatomic) IBOutlet UIPageControl *dianDian;
@end
@implementation ViewController
- (NSArray *)arrs
{
if(_arrs == nil)
{
NSString *strPath = [[NSBundle mainBundle] pathForResource:@"arr" ofType:@"plist"];
_arrs = [NSArray arrayWithContentsOfFile:strPath];
}
return _arrs;
}
- (void)viewDidLoad
{
[super viewDidLoad];
CGFloat imageW = 300;
CGFloat imageH = 130;
for (int i = 0; i < IMAGE_COUNT; i++) {
UIImageView *imageView = [[UIImageView alloc] init];
[self.lunBoQi addSubview:imageView];
NSString *iconName = [NSString stringWithFormat:@"img_%02d", i + 1];
imageView.image = [UIImage imageNamed:iconName];
CGFloat imageY = 0;
CGFloat imageX = i * imageW;
imageView.frame = CGRectMake(imageX, imageY, imageW, imageH);
}
self.lunBoQi.contentSize = CGSizeMake(IMAGE_COUNT * imageW, 0);
self.lunBoQi.showsHorizontalScrollIndicator = NO;
self.lunBoQi.pagingEnabled = YES;
self.dianDian.numberOfPages = IMAGE_COUNT;
self.lunBoQi.delegate = self;
NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:2.0f target:self selector:@selector(nextImage) userInfo:nil repeats:YES];
[[NSRunLoop currentRunLoop] addTimer:timer forMode:NSRunLoopCommonModes];
CGFloat aW = 145;
CGFloat aH = 145;
int num = 2;
CGFloat marginX = (self.view.frame.size.width - aW * num) / (num + 1);
CGFloat marginY = 10;
for (int index = 0; index < self.arrs.count; index++)
{
UIButton * apic = [[UIButton alloc] init];
int col = index % num;
CGFloat aX = marginX + (aW + marginX) * col;
int row = index / num;
CGFloat aY = 10 + marginY + (aH + marginY) * row + 160;
apic.frame = CGRectMake(aX, aY, aW, aH);
NSDictionary *dic = self.arrs[index];
[apic setBackgroundImage:[UIImage imageNamed:dic[@"pic"]] forState:UIControlStateNormal];
[self.scrView addSubview:apic];
}
UIButton * lastBtn = [[UIButton alloc] init];
lastBtn.frame = CGRectMake(10, 645, 300, 80);
[lastBtn setBackgroundImage:[UIImage imageNamed:@"banner"] forState:UIControlStateNormal];
[self.scrView addSubview:lastBtn];
CGFloat height = CGRectGetMaxY(lastBtn.frame);
self.scrView.contentSize = CGSizeMake(0, height);
self.scrView.contentInset = UIEdgeInsetsMake(10, 0, 10, 0);
self.scrView.contentOffset = CGPointMake(0, -10);
}
- (void)nextImage
{
NSUInteger page = 0;
if (self.dianDian.currentPage == 4)
{
page = 0;
}
else
{
page = self.dianDian.currentPage + 1;
}
CGPoint offSet = self.lunBoQi.contentOffset;
offSet.x = page * self.lunBoQi.frame.size.width;
[self.lunBoQi setContentOffset:offSet animated:YES];
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
CGFloat scrollW = self.lunBoQi.frame.size.width;
int page = (scrollView.contentOffset.x + 0.5 * scrollW) / scrollW;
self.dianDian.currentPage = page;
}
@end
