ios启动载入启动图片
版本判断:
1.首先你要知道这个键值对的key:id key = (id)kCFBundleVersionKey;
2.同过本地的NSBundle取得当前的版本号。
3.在沙盒中取得对应的版本号。
4.比较来判断载入情况。
//首先获取当前版本,从plist中获取 //在bundle中查找获取当前对应的version id key = (id)kCFBundleVersionKey; NSDictionary *infoDictionary=[NSBundle mainBundle].infoDictionary; NSString *currentVersion = [infoDictionary objectForKey:key]; //从沙盒获取的bundle NSUserDefaults *defaults= [NSUserDefaults standardUserDefaults]; NSString *defaultVersion = [defaults objectForKey:key]; if ([defaultVersion isEqual:currentVersion]) { self.window.rootViewController = [[CSMainBarController alloc]init]; }else { CSLaunchView *indexView = [[CSLaunchView alloc]init]; self.window.rootViewController = indexView; }
1.创建新的类来加载对应的图片。通过UIViveController上套着UIScrollView再套上一个view.
2.加载对应的view
3.加载对应的pagecontroller
// // CSLaunchView.m // diary // // Created by asheng123 on 15/4/13. // Copyright (c) 2015年 asheng123. All rights reserved. // #import "CSLaunchView.h" #define LaunchImage 4 @interface CSLaunchView()<UIScrollViewDelegate> @property(nonatomic,weak)UIPageControl *mypage; @end @implementation CSLaunchView -(void)viewDidLoad { //载入对应的scrollview的一些信息 [self loadScrollView]; //加载一个pagecontrol [self loadPageControl]; } -(void)loadPageControl { UIPageControl *pageControl= [[UIPageControl alloc]init]; self.mypage = pageControl; pageControl.numberOfPages = LaunchImage; pageControl.x = self.view.size.width*0.5; pageControl.y = self.view.size.height - 30; pageControl.pageIndicatorTintColor = [UIColor grayColor]; pageControl.currentPageIndicatorTintColor = [UIColor blackColor]; [self.view addSubview:pageControl]; } -(void)loadScrollView { //创建一个scorllview UIScrollView *theScorll= [[UIScrollView alloc]init]; //设置对应的尺寸 theScorll.frame =self.view.bounds; theScorll.delegate = self; CGFloat imageW = theScorll.frame.size.width; CGFloat imageH = theScorll.frame.size.height; [self.view addSubview:theScorll]; for (int i =0; i<LaunchImage; i++) { // UIImage *name=[UIImage imageNamed: [NSString stringWithFormat:@"new_feature_%d",i+1]]; NSString *name = [NSString stringWithFormat:@"new_feature_%d",i+1]; if(phoneInch) { [name stringByAppendingString:@"@2x"]; } UIImageView*theImage = [[UIImageView alloc]initWithImage:[UIImage imageNamed:name]]; [theScorll addSubview:theImage]; theImage.x = imageW*i; NSLog(@"thescorll width is %f",theScorll.width); theImage.y =0; theImage.width = imageW; theImage.height = imageH; } theScorll.contentSize = CGSizeMake(LaunchImage *self.view.width,0); theScorll.pagingEnabled =YES; theScorll.bounces =NO; theScorll.showsHorizontalScrollIndicator =NO; } -(void)scrollViewDidScroll:(UIScrollView *)scrollView { CGFloat num = (scrollView.contentOffset.x /self.view.width); int intPage = (int)(num +0.5); self.mypage.currentPage=intPage; } @end
今日单词:mechanism
underpin
notion
encapsulates
corresponds
conform
conventions
lowercase
sequence
traverse
glance
observes
inform
illustration
scenario
establishes
invoked
compliant
scheme
infrastructure
compliant
demonstrates
emits
bitwise
an inspector object
maintain
triggered
proxy
manual
granular
control
nest
fragment
derived property
纸上得来终觉浅,绝知此事要躬行