撰寫iPhone應用程序中的郵件

Question

在我的應用程序中，我有一個abouts頁面。我想放置一個圓形矩形按鈕，當我按下它時，我將能夠通過嵌入的電子郵件地址向公司發送電子郵件。

是否有任何教程要做到這一點？

在此先感謝。

Answer 1

您必須鏈接到MessageUI框架並使用類MFMailComposeViewController。不要忘記導入框架（#import <MessageUI/MessageUI.h>）。

與示例代碼的文檔：http://developer.apple.com/library/ios/#documentation/MessageUI/Reference/MFMailComposeViewController_class/Reference/Reference.html

Answer 2

很多。你可以開始here和here。並檢查計算器正確here。

Answer 3

下面的代碼：

的OBJ-C：

（不要忘記將messageUI框架添加到您的項目！）

先導入信息庫：

#import <MessageUI/MessageUI.h> 

然後標記你的自我作爲這樣的委託：

@interface MYViewController() <MFMailComposeViewControllerDelegate> 

然後拉起作曲家（如果用戶設置電子郵件的設備上）：

- (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]; 
    } 
} 

然後辦理委託回調並關閉作曲家：

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

SWIFT 3：

進口相關庫：

import MessageUI 

標記您的視圖控制器作爲像這樣的委託：

class MyViewController: UIViewController, MFMailComposeViewControllerDelegate { 

拉起作曲家（如果用戶設置電子郵件的設備上）：

@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) 
     } 
    } 

處理代表回調並關閉作曲者：

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

Answer 4

這是iOS中打開郵件撰寫代碼：

來源：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]; 
    } 

}