- 设置推送信息提醒数量
//1.获取UIApplication对象
UIApplication * app=[UIApplication sharedApplication];
//2.注册用户通知
UIUserNotificationSettings * notice=[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge categories:nil];
[app registerUserNotificationSettings:notice];
//设置提醒值
app.applicationIconBadgeNumber=10;
- 设置联网状态
//1.获取UIApplication对象
UIApplication * app=[UIApplication sharedApplication];
app.networkActivityIndicatorVisible=YES;
- 设置状态栏
//1.获取UIApplication对象
UIApplication * app=[UIApplication sharedApplication];
//隐藏状态栏//app.statusBarHidden=NO;
app.statusBarStyle=UIStatusBarStyleLightContent;
- openURL
//UIApplication有个功能十分强大的openURL:方法
//1. 获取 UIApplication 对象UIApplication * app=[UIApplication sharedApplication];
//打电话
[app openURL:[NSURL URLWithString:@"tel://10086"]];
//发短信
[app openURL:[NSURL URLWithString:@"sms://10086"]];
//发邮件
[app openURL:[NSURL URLWithString:@"mailto://[email protected]"]];
//打开一个网页资源
[app openURL:[NSURL URLWithString:@"https://www.baidu.com"]];