- (BOOL)isFirstEverUsed
{
NSString *dIsFirstEverUsed = [[NSString alloc]init];
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
//第一次啓動時，會創建“everUsed”鍵值，並默認爲假
if (![userDefaults boolForKey:dIsFirstEverUsed]) {
[userDefaults setBool:YES forKey:dIsFirstEverUsed];
return YES;
}
else{
return NO;
}
然後在
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
裏面做判斷
if ([self isFirstEverUsed]) {
}
else
{
}
}
}