如何添加郵件撰寫視圖？

Question

我有一個UITable，當我單擊名為“ Mail”的單元格時，我希望它推動sendMailViewController。

在此sendMailViewController中，在viewDidLoad中，我將調用[self displayComposerSheet]：

從理論上講，這將是正確的方法嗎？

-(void)displayComposerSheet 
{
    MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
    picker.mailComposeDelegate = self;

    [picker setSubject:@"Hello from California!"];

    // Set up recipients
    NSArray *toRecipients = [NSArray arrayWithObject:@"first@example.com"]; 
    NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com", @"third@example.com", nil]; 
    NSArray *bccRecipients = [NSArray arrayWithObject:@"fourth@example.com"]; 

    [picker setToRecipients:toRecipients];
    [picker setCcRecipients:ccRecipients];  
    [picker setBccRecipients:bccRecipients];

    // Attach an image to the email
    NSString *path = [[NSBundle mainBundle] pathForResource:@"rainy" ofType:@"png"];
    NSData *myData = [NSData dataWithContentsOfFile:path];
    [picker addAttachmentData:myData mimeType:@"image/png" fileName:@"rainy"];

    // Fill out the email body text
    NSString *emailBody = @"It is raining in sunny California!";
    [picker setMessageBody:emailBody isHTML:NO];

    [self presentModalViewController:picker animated:YES];
    [picker release];
}

Answer 1

看起來正確，但為預防起見，您應該添加：

if ([MFMailComposeViewController canSendMail])
{
    ....your picker code...
}
else {
    // alert user that they can't send email?
}

Answer 2

您的代碼看起來不錯，但是我建議您從UITableViewController呈現MFMailComposeViewController ，而不是推送新的視圖控制器並在那里呈現它-最終可能看起來很奇怪並且不必要。

Answer 3

在您的didselectRow中為該indexpath.row做

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if(indexPath.row==*give your row no*)
{

if([MFMailComposeViewController canSendMail]){

MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
    picker.mailComposeDelegate = self;

    [picker setSubject:@"Hello from California!"];

    // Set up recipients
    NSArray *toRecipients = [NSArray arrayWithObject:@"first@example.com"]; 
    NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com", @"third@example.com", nil]; 
    NSArray *bccRecipients = [NSArray arrayWithObject:@"fourth@example.com"]; 

    [picker setToRecipients:toRecipients];
    [picker setCcRecipients:ccRecipients];  
    [picker setBccRecipients:bccRecipients];

    // Attach an image to the email
    NSString *path = [[NSBundle mainBundle] pathForResource:@"rainy" ofType:@"png"];
    NSData *myData = [NSData dataWithContentsOfFile:path];
    [picker addAttachmentData:myData mimeType:@"image/png" fileName:@"rainy"];

    // Fill out the email body text
    NSString *emailBody = @"It is raining in sunny California!";
    [picker setMessageBody:emailBody isHTML:NO];

    [self presentModalViewController:picker animated:YES];
    [picker release];

        }
        else
        {
            //NSLog(@"Message cannot be sent");
        }
}


- (void)mailComposeController:(MFMailComposeViewController*)mailController didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {
    [self dismissModalViewControllerAnimated:YES];


}