当我的应用程序正在启动时,我正在尝试播放一个介绍电影,但我已经完全疯了,我在我的代码中做了很多测试,并试图使用这个
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
NSLog(@"App started to launch");
[self.window makeKeyAndVisible];
[self.window addSubview:_intro.view];
return YES;
}
但即使我是从后台来的,这也会让我的视频运行 如果要按中间按钮,然后双击中间按钮并按应用程序图标,我就可以再次播放电影了。
我忘了提到这是我的ViewDidLoad
- (void)viewDidLoad
{
[super viewDidLoad];
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
BOOL launchedBefore = [userDefaults boolForKey:@"hasRunBefore"];
NSLog(@"value of hasRunBefore is %d",launchedBefore);
if(!launchedBefore)
{
[userDefaults setBool:1 forKey:@"hasRunBefore"];
launchedBefore = [userDefaults boolForKey:@"hasRunBefore"];
NSLog(@"value of hasRunBefore is %d",launchedBefore);
[self playvideo];
}
}
答案 0 :(得分:1)
NSUserDefaults
消息之前, synchronize
不会将更改提交到磁盘。
尝试添加这样做:
[userDefaults setBool:YES forKey:@"hasRunBefore"];
[userDefaults synchronize];