iOS新版本特性(引导页)

来源：互联网发布：通达信软件使用教程编辑：程序博客网时间：2024/05/22 07:39

图片规则和命名要求
4S 640 X 960 xxx@2x.png 如：new_feature_0@2x.png
5S 640 X 1136 xxx568h@2x.png 如：new_feature_0-568h@2x.png
6 750 X 1334 xxx667h@2x.png 如：new_feature_0-667h@2x.png
6Plus 1242 X 2208 xxx736h@3x.png 如：new_feature_0-736h@3x.png

在XX.m文件视图什么的可以分开写

#import "YJNewfeatureViewController.h"#import "LCLoginViewController.h"#define kNewfeatureCount 4@interface YJNewfeatureViewController ()<UIScrollViewDelegate>@property (nonatomic, strong)UIPageControl *pageControl;@end@implementation YJNewfeatureViewController- (void)viewDidLoad {    [super viewDidLoad];    [self loadScrollView];}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}#pragma mark - 创建scrollView- (void)loadScrollView{    // 1、创建一个scrollView:显示所有的新特性    UIScrollView *scrollView = [[UIScrollView alloc] init];    scrollView.frame = self.view.bounds;    scrollView.delegate = self;    [self.view addSubview:scrollView];    // 2、添加图片到scrollView中    CGFloat scrollW = scrollView.width;    CGFloat scrollH = scrollView.height;    for (int i = 0; i < kNewfeatureCount; i++)    {        UIImageView *imageView = [[UIImageView alloc] init];        imageView.width = scrollW;        imageView.height = scrollH;        imageView.y = 0;        imageView.x = i * scrollW;        NSString *name = [NSString stringWithFormat:@"new_feature_%d", i];        imageView.image = [UIImage imageNamed:name];        [scrollView addSubview:imageView];//         如果是最后一个imageView 就往里面添加其他内容        if (i == kNewfeatureCount - 1)        {            [self setupLastImageView:imageView];        }    }    // 3、设置scrollView的其他属性    // 如果想要某个方向上不能滚动,那么这个方向对应的尺寸数值传0即可    scrollView.contentSize = CGSizeMake(kNewfeatureCount * scrollW, 0);    scrollView.bounces = NO;    scrollView.pagingEnabled = YES;    scrollView.showsHorizontalScrollIndicator = NO;    // 4、添加pageControl 展示目前看到的是第几页    UIPageControl *pageControl = [[UIPageControl alloc] init];    pageControl.numberOfPages = kNewfeatureCount;    pageControl.centerX = scrollW * 0.5;    pageControl.centerY = scrollH - 20;    pageControl.userInteractionEnabled = NO;    pageControl.pageIndicatorTintColor = [UIColor RGBColor:189 green:189 blue:189 alpha:1];    pageControl.currentPageIndicatorTintColor = [UIColor RGBColor:253 green:98 blue:42 alpha:1];    self.pageControl = pageControl;    [self.view addSubview:pageControl];}#pragma mark - 活动的时候改变page- (void)scrollViewDidScroll:(UIScrollView *)scrollView{    double page = scrollView.contentOffset.x / scrollView.width;    // 四舍五入计算出页码    self.pageControl.currentPage = (int)(page + 0.5);}#pragma mark - 在最后一个图片上方一个按钮- (void)setupLastImageView:(UIImageView *)imageView{    // 1开启交互功能    imageView.userInteractionEnabled = YES;    // 2.点击进入    UIButton *startBtn = [[UIButton alloc] init];    startBtn.frame = CGRectMake(kScreenWidth / 2 - 75, kScreenHeight / 1.2, 170, 50);    startBtn.showsTouchWhenHighlighted = YES;    startBtn.backgroundColor = [UIColor redColor];    [startBtn addTarget:self action:@selector(startClick) forControlEvents:UIControlEventTouchUpInside];    [imageView addSubview:startBtn];}#pragma mark - 开启按钮触发事件- (void)startClick{    // 1、创建window对象    UIWindow *window = [UIApplication sharedApplication].keyWindow;    // 2、创建登录对象    UIStoryboard *stoyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];    LCLoginViewController *loginVC = [stoyboard instantiateViewControllerWithIdentifier:@"LCLoginViewController"];    UINavigationController *navLoginVC = [[UINavigationController alloc] initWithRootViewController:loginVC];    // 3.设置跟控制器    window.rootViewController = navLoginVC;}@end

在appDelegate.m文件判断版本号如果发现新版本·显示引导页

#pragma mark - 判断新版本和设置主控制器- (void)newVersionAndRootViewController{    // 2.设置跟控制器    // 版本新特性    NSString *key = @"CFBundleVersion";    // 上一次的使用版本 (存储在沙盒中的版本号)    NSString *lastVersion = [[NSUserDefaults standardUserDefaults]objectForKey:key];    // 当前软件的版本号（从Info.plist）    NSString *currentVersion = [NSBundle mainBundle].infoDictionary[key];    // 判断版本号是否相同    if ([currentVersion isEqualToString:lastVersion])    {        // 如果相同跳到主控制 代码这里写    }    else    {        // 如果发现新版本 就先把引导页设置为跟控制        UIStoryboard *stoyboard = [UIStoryboard storyboardWithName:@"YJNewfeatureStoryboard" bundle:nil];        YJNewfeatureViewController *newfeatureVC = [stoyboard instantiateViewControllerWithIdentifier:@"YJNewfeatureViewController"];        // 新版本        self.window.rootViewController = newfeatureVC;        //将当前的版本号存进沙盒        [[NSUserDefaults standardUserDefaults] setObject:currentVersion forKey:key];        [[NSUserDefaults standardUserDefaults] synchronize];    }}

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