iOS 如何设置启动引导图

来源：互联网发布：传智播客c语言讲义编辑：程序博客网时间：2024/05/17 09:15

QMPushGuideView.h

#import <UIKit/UIKit.h>@interface QMPushGuideView : UIView//初始化引导图+ (instancetype)guideView;//展示引导图+ (void)show;@end

QMPushGuideView.m

#import "QMPushGuideView.h"@implementation QMPushGuideView//初始化引导图+ (instancetype)guideView{    return [[[NSBundle mainBundle] loadNibNamed:NSStringFromClass(self) owner:nil options:nil] lastObject];}//移除引导图- (IBAction)close {    //从父视图上移除    [self removeFromSuperview];}//显示引导图+ (void)show{    NSString *key = @"CFBundleShortVersionString";    //获得当前软件的版本号 infoDictionary -- 里面还有info.plist的信息    NSString *currentVersion = [[NSBundle mainBundle] infoDictionary][key];    //获得沙盒中储存的版本号    NSString *sandBoxVersion = [[NSUserDefaults standardUserDefaults] stringForKey:key];    UIWindow *mainWindow = [UIApplication sharedApplication].keyWindow;    if (![currentVersion isEqualToString:sandBoxVersion]) {        //创建推送引导视图        QMPushGuideView *guidView = [QMPushGuideView guideView];        guidView.frame = mainWindow.bounds;        [mainWindow addSubview:guidView];        //储存版本号        [[NSUserDefaults standardUserDefaults] setObject:currentVersion forKey:key];        //马上储存        [[NSUserDefaults standardUserDefaults] synchronize];    }}

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