一，效果图。

二，代码。

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 rootviewcontroller.h #import <uikit/uikit.h> @interface rootviewcontroller : uiviewcontroller <uialertviewdelegate> @end rootviewcontroller.m - (void)viewdidload { [super viewdidload]; // do any additional setup after loading the view. //alert uialertview *alert=[[uialertview alloc]initwithtitle:nil message:@"一个可以自动关闭的alert窗口" delegate:self cancelbuttontitle:nil otherbuttontitles:nil, nil]; [alert show]; //显示框 uiactivityindicatorview *indicator = [[uiactivityindicatorview alloc] initwithactivityindicatorstyle:uiactivityindicatorviewstylewhitelarge]; indicator.backgroundcolor=[uicolor redcolor]; indicator.center = cgpointmake(alert.bounds.size.width/2, alert.bounds.size.height-40.0); [indicator startanimating]; [alert insertsubview:indicator atindex:0]; //定时器 [nstimer scheduledtimerwithtimeinterval:3.0f target:self selector:@selector(dismissalert:) userinfo:[nsdictionary dictionarywithobjectsandkeys:alert, @"alert", @"testing ", @"key" ,nil] repeats:no]; } //alert 自动消失 -(void) dismissalert:(nstimer *)timer{ uialertview *alert = [[timer userinfo] objectforkey:@"alert"]; [alert dismisswithclickedbuttonindex:0 animated:yes]; }

以上所述是小编给大家介绍的ios uialertview自动关闭，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！

原文链接：http://www.cnblogs.com/yang-guang-girl/archive/2017/06/20/7052794.html