iOS判断手机APP第一次启动详解手机开发

ios开发－判断手机APP第一次启动

代码：

 //判断是不是第一次启动 
 
    if (![[NSUserDefaults standardUserDefaults]boolForKey:@"fristLaunch11"]) { 
 
         
 
        [[NSUserDefaults standardUserDefaults]setBool:YES forKey:@"fristLaunch11"]; 
 
        [[NSUserDefaults standardUserDefaults] synchronize]; 
 
         
 
        //使启动界面停留 2.0 秒 
 
        [NSThread sleepForTimeInterval:2.0]; 
 
        userGuideViewController = [[UserGuideViewController alloc] init]; 
 
        self.window.rootViewController = userGuideViewController;//设置启动根视图 
 
        [userGuideViewController release]; 
 
    } 
 
    else 
 
    { 
 
        [NSThread sleepForTimeInterval:2.0]; 
 
        getPicViewController = [[GetPicViewController alloc] init]; 
 
        self.window.rootViewController = getPicViewController; 
 
        [getPicViewController release]; 
 
    }