Question

在我的应用中，我有一个约会页面。我想放一个圆形的矩形按钮，当我按下它时，我就可以通过嵌入的电子邮件地址向公司发送电子邮件。

是否有任何教程可以做到这一点？

提前致谢。

Answer 1

以下是代码：

<强>的OBJ-C：

（不要忘记将messageUI框架添加到您的项目中!!!）

首先导入消息库：

#import <MessageUI/MessageUI.h>

然后将自己标记为这样的代表：

@interface MYViewController () <MFMailComposeViewControllerDelegate>

然后拉起作曲家（如果用户在他们的设备上设置了电子邮件）：

- (IBAction)emailButtonPressed:(id)sender
{
    if ([MFMailComposeViewController canSendMail]) {
        MFMailComposeViewController *composeViewController = [[MFMailComposeViewController alloc] initWithNibName:nil bundle:nil];
        [composeViewController setMailComposeDelegate:self];
        [composeViewController setToRecipients:@[@"example@email.com"]];
        [composeViewController setSubject:@"example subject"];
        [self presentViewController:composeViewController animated:YES completion:nil];
    }
}

然后处理委托回调并解雇作曲家：

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error
{
    //Add an alert in case of failure
    [self dismissViewControllerAnimated:YES completion:nil];
}

SWIFT 3：

导入相关库：

import MessageUI

将您的视图控制器标记为代表，如下所示：

class MyViewController: UIViewController, MFMailComposeViewControllerDelegate {

拉起作曲家（如果用户在他们的设备上设置了电子邮件）：

@IBAction func emailButtonAction(_ sender: UIButton) {

        if MFMailComposeViewController.canSendMail() {
            let mail = MFMailComposeViewController()
            mail.mailComposeDelegate = self
            mail.setToRecipients(["example@gmail.com"])
            mail.setSubject("Example Subject")
            mail.setMessageBody("<p>Test</p>", isHTML: true)
            present(mail, animated: true)
        }
    }

处理委托回调并解雇作曲家：

func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
    controller.dismiss(animated: true)
}

Answer 2

您必须链接到MessageUI框架并使用课程MFMailComposeViewController。不要忘记导入框架（#import <MessageUI/MessageUI.h>）。

包含示例代码的文档：http://developer.apple.com/library/ios/#documentation/MessageUI/Reference/MFMailComposeViewController_class/Reference/Reference.html

Answer 3

以下是在iOS中打开Mail Composer的代码：

来源：http://sickprogrammersarea.blogspot.in/2014/03/open-mail-composer-programmatically-in.html

#import "ViewController.h"
@interface ViewController ()

@end
@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
      // Do any additional setup after loading the view, typically from a nib.

    UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [button addTarget:self action:@selector(send:) forControlEvents:UIControlEventTouchDown];
    [button setTitle:@"Send Mail" forState:UIControlStateNormal];
    button.frame = CGRectMake(100.0, 350.0, 100.0, 40.0);
    [self.view addSubview:button];

}
- (void) send:(id)sender{
    MFMailComposeViewController *comp=[[MFMailComposeViewController alloc]init];
    [comp setMailComposeDelegate:self];
    if([MFMailComposeViewController canSendMail])
    {
        [comp setToRecipients:[NSArray arrayWithObjects:@"imstkgp@gnail.com", nil]];
        [comp setSubject:@"From my app"];
        [comp setMessageBody:@"Hello bro" isHTML:NO];
        [comp setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
        [self presentViewController:comp animated:YES completion:nil];
    }
    else{
        UIAlertView *alrt=[[UIAlertView alloc]initWithTitle:@"" message:@"" delegate:nil cancelButtonTitle:@"" otherButtonTitles:nil, nil];
        [alrt show];

    }
}
-(void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error{
    if(error)
    {
        UIAlertView *alrt=[[UIAlertView alloc]initWithTitle:@"" message:@"" delegate:nil cancelButtonTitle:@"" otherButtonTitles:nil, nil];
        [alrt show];
        [self dismissModalViewControllerAnimated:YES];
    }
    else{
        [self dismissModalViewControllerAnimated:YES];
    }

}

Answer 4

很多。您可以here和here开始。并检查stackoverflow右here。

在iPhone应用程序中撰写邮件

4 个答案: