在AppdidFinishLaunched中添加
if (![[NSUserDefaults
standardUserDefaults] boolForKey:@"everLaunched"])
{
[[NSUserDefaults
standardUserDefaults] setBool:YES
forKey:@"everLaunched"];
[[NSUserDefaults
standardUserDefaults] setBool:YES
forKey:@"firstLaunch"];
}
else
{
[[NSUserDefaults
standardUserDefaults] setBool:NO
forKey:@"firstLaunch"];
}
然后判断 firstLaunch 即可