iOS中[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@""]]的使用

// 调用自带mail  

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"mailto://admin@163.com"]];  

// 调用电话phone  

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://8008808888"]]; //退出应用  

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"telprompt://8008808888"]];//不退出应用  

// 调用 SMS  

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"sms://800888888"]];  

// 调用自带浏览器 safari  

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://www.baidu.com"]];  

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// 宏定义使用方法  

#define MailSend(email) ([[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"mailto://%@",email]])  

#define PhoneCall(phone) ([[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"tel://%@",phone]])  

#define PhoneCallAuto(phone) ([[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"telprompt://%@",phone]])  

#define SMSSend(phone) ([[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"sms://%@",phone]])  

#define SafariOpen(url) ([[UIApplication sharedApplication] openURL:[NSURL URLWithString:url])