【代码笔记】iOS-UIAlertView3秒后消失

一，效果图。

二，代码。

- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.        UIAlertView* alert = [[UIAlertView alloc]initWithTitle:nil message:@"此信息３秒后消失" delegate:nil cancelButtonTitle:nil otherButtonTitles:nil, nil];    [alert show];    [self performSelector:@selector(dismissAlert:) withObject:alert afterDelay:3.0];}- (void)dismissAlert:(UIAlertView*)alert {    if ( alert.visible ) {        [alert dismissWithClickedButtonIndex:alert.cancelButtonIndex animated:YES];    }}