iOS打电话，发短信，发邮件，打开网址

    //调用自带mail

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"mailto://[email protected]"]];



    //调用电话

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



    //调用sms

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"sms://800888"]];



    //调用打开网址

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

 

调用phone可以传递号码，调用SMS 只能设定号码，不能初始化SMS内容。

发短信邮件需要的框架

导入头文件#import <MessageUI/MessageUI.h>

协议：<MFMailComposeViewControllerDelegate,MFMessageComposeViewControllerDelegate>

//点击按钮后，触发这个方法

-(void)sendEMail

{

    MFMailComposeViewController *mailPicker = [[MFMailComposeViewController alloc] init];

    

    mailPicker.mailComposeDelegate = self;

    

    //设置主题

    [mailPicker setSubject: @"eMail主题"];

    

    // 添加发送者

    NSArray *toRecipients = [NSArray arrayWithObject: @"[email protected]"];

    

    [mailPicker setToRecipients: toRecipients];

    

    // 添加图片

    UIImage *addPic = [UIImage imageNamed: @"ios.jpg"];

    NSData *imageData = UIImagePNGRepresentation(addPic);            // png

    // NSData *imageData = UIImageJPEGRepresentation(addPic, 1);    // jpeg

    [mailPicker addAttachmentData: imageData mimeType: @"" fileName: @"ios.jpg"];

    

    NSString *emailBody = @"eMail 正文";

    [mailPicker setMessageBody:emailBody isHTML:YES];

    

    [self presentViewController:mailPicker animated:YES completion:nil];

}



- (void)sendSMS{

    MFMessageComposeViewController *controller = [[MFMessageComposeViewController alloc] init];

    

    if([MFMessageComposeViewController canSendText])

    {

        controller.body = @"12";

        controller.recipients = @[@"1",@"2"];

        controller.messageComposeDelegate = self;



        [self presentViewController:controller animated:YES completion:nil];

    }

}





#pragma mark - <MFMessageComposeViewControllerDelegate>



// 处理发送完的响应结果

- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result

{

    [self.presentingViewController dismissViewControllerAnimated:YES completion:nil];

    

    if (result == MessageComposeResultCancelled){

        NSLog(@"Message cancelled");

    }

    

    else if (result == MessageComposeResultSent){

        NSLog(@"Message sent");

    }

    

    else{

        NSLog(@"Message failed");

    }

}



#pragma mark - <MFMailComposeViewControllerDelegate>



- (void)mailComposeController:(MFMailComposeViewController *)controller

          didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error

{

    NSString *msg;

    

    switch (result)

    {

        case MFMailComposeResultCancelled:

            msg = @"邮件发送取消";

            break;

        case MFMailComposeResultSaved:

            msg = @"邮件保存成功";

    

            break;

        case MFMailComposeResultSent:

            msg = @"邮件发送成功";

         

            break;

        case MFMailComposeResultFailed:

            msg = @"邮件发送失败";

           

            break;

        default:

            break;

    }

    [self.presentingViewController dismissViewControllerAnimated:YES completion:nil];

}