這篇文章將為大家詳細(xì)講解有關(guān)iOS基于UIScrollView如何實現(xiàn)滑動引導(dǎo)頁,小編覺得挺實用的,因此分享給大家做個參考,希望大家閱讀完這篇文章后可以有所收獲。

效果圖:

WelcomeViewController.h
#import <UIKit/UIKit.h> @interface WelcomeViewController : UIViewController @end
WelcomeViewController.m
#import "WelcomeViewController.h"
#define IMAGECOUNT 3
@interface WelcomeViewController () <UIScrollViewDelegate>
@property (nonatomic, strong)UIPageControl *pageControl;
@end
@implementation WelcomeViewController
- (void)viewDidLoad {
[super viewDidLoad];
//創(chuàng)建ScrollView
UIScrollView *sv = [[UIScrollView alloc] init];
sv.frame = self.view.bounds;
//設(shè)置邊緣不彈跳
sv.bounces = NO;
//整頁滾動
sv.pagingEnabled = YES;
sv.showsHorizontalScrollIndicator = NO;
//加入多個子視圖(ImageView)
for(NSInteger i=0; i<IMAGECOUNT; i++){
NSString *imgName = [NSString stringWithFormat:@"%ld", i+1];
UIImage *image = [UIImage imageNamed:imgName];
UIImageView *imageView = [[UIImageView alloc]initWithImage:image];
CGRect frame = CGRectZero;
frame.origin.x = i * sv.frame.size.width;
frame.size = sv.frame.size;
imageView.frame = frame;
[sv addSubview:imageView];
if(i==IMAGECOUNT-1){
//開啟圖片的用戶點擊功能
imageView.userInteractionEnabled = YES;
//加個按鈕
UIButton *button = [[UIButton alloc]init];
button.frame = CGRectMake((imageView.frame.size.width-150)/2, imageView.frame.size.height*0.8, 150, 40);
button.backgroundColor = [UIColor orangeColor];
[button setTitle:@"立即體驗" forState:UIControlStateNormal];
button.titleLabel.font = [UIFont boldSystemFontOfSize:16];
[imageView addSubview:button];
[button addTarget:self action:@selector(enter) forControlEvents:UIControlEventTouchUpInside]; }
}
sv.contentSize = CGSizeMake(IMAGECOUNT * sv.frame.size.width, sv.frame.size.height);
[self.view addSubview:sv];
//加入頁面指示控件PageControl
UIPageControl *pageControl = [[UIPageControl alloc]init];
self.pageControl = pageControl;
//設(shè)置frame
pageControl.frame = CGRectMake(0, self.view.frame.size.height - 40, self.view.frame.size.width, 20);
//分頁面的數(shù)量
pageControl.numberOfPages = IMAGECOUNT;
//設(shè)置小圓點渲染顏色
pageControl.pageIndicatorTintColor = [UIColor whiteColor];
//設(shè)置當(dāng)前選中小圓點的渲染顏色
pageControl.currentPageIndicatorTintColor = [UIColor redColor];
//關(guān)閉用戶點擊交互
pageControl.userInteractionEnabled = NO;
[self.view addSubview:pageControl];
sv.delegate = self;
}
- (void)enter
{
NSLog(@"進(jìn)入應(yīng)用");
}
//UIScrollViewDelegate方法
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
CGPoint offset = scrollView.contentOffset;
if(offset.x<=0){
offset.x = 0;
scrollView.contentOffset = offset;
}
NSUInteger index = round(offset.x / scrollView.frame.size.width);
self.pageControl.currentPage = index;
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end關(guān)于“iOS基于UIScrollView如何實現(xiàn)滑動引導(dǎo)頁”這篇文章就分享到這里了,希望以上內(nèi)容可以對大家有一定的幫助,使各位可以學(xué)到更多知識,如果覺得文章不錯,請把它分享出去讓更多的人看到。
另外有需要云服務(wù)器可以了解下創(chuàng)新互聯(lián)建站chinadenli.net,海內(nèi)外云服務(wù)器15元起步,三天無理由+7*72小時售后在線,公司持有idc許可證,提供“云服務(wù)器、裸金屬服務(wù)器、高防服務(wù)器、香港服務(wù)器、美國服務(wù)器、虛擬主機、免備案服務(wù)器”等云主機租用服務(wù)以及企業(yè)上云的綜合解決方案,具有“安全穩(wěn)定、簡單易用、服務(wù)可用性高、性價比高”等特點與優(yōu)勢,專為企業(yè)上云打造定制,能夠滿足用戶豐富、多元化的應(yīng)用場景需求。
新聞標(biāo)題:iOS基于UIScrollView如何實現(xiàn)滑動引導(dǎo)頁-創(chuàng)新互聯(lián)
分享地址:http://chinadenli.net/article0/diodoo.html
成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián),為您提供響應(yīng)式網(wǎng)站、微信小程序、手機網(wǎng)站建設(shè)、網(wǎng)站建設(shè)、外貿(mào)建站、App開發(fā)
聲明:本網(wǎng)站發(fā)布的內(nèi)容(圖片、視頻和文字)以用戶投稿、用戶轉(zhuǎn)載內(nèi)容為主,如果涉及侵權(quán)請盡快告知,我們將會在第一時間刪除。文章觀點不代表本網(wǎng)站立場,如需處理請聯(lián)系客服。電話:028-86922220;郵箱:631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載,或轉(zhuǎn)載時需注明來源: 創(chuàng)新互聯(lián)
猜你還喜歡下面的內(nèi)容