How to show an alert only once at the start of an application after installing the application on device or on simulator until I delete it from my device. Is it possible tell me..
質問する
1373 次
1 に答える
10
あなたはこのようにそれを行うことができます:
if (![[NSUserDefaults standardUserDefaults] boolForKey:@"HasLaunchedOnce"]) {
//first launch
//show your alert
[[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"HasLaunchedOnce"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
else
{
// app already launched
}
于 2013-01-24T07:13:06.903 に答える