一，效果图。
二，代码。
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rootviewcontroller.h#import <uikit/uikit.h>@interface rootviewcontroller : uiviewcontroller<uialertviewdelegate>@endrootviewcontroller.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
