在我的应用程序中,我有一个关于页面。我想放置一个圆角矩形按钮,当我按下它时,可以发送包含公司电子邮件地址的电子邮件。
有没有教程可以做到这一点?
提前致谢。
以下是代码:
Obj-C:
(不要忘记将messageUI框架添加到您的项目中!!!)
首先导入message库:
#import <MessageUI/MessageUI.h>
然后像这样将自己标记为代表:
@interface MYViewController () <MFMailComposeViewControllerDelegate>
然后拉起邮件编辑器(如果用户在其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关闭创作器:
- (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
像这样将您的视图控制器标记为代理:
class MyViewController: UIViewController, MFMailComposeViewControllerDelegate {
打开Composer(如果用户在其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)
}
}
处理委托回调并关闭撰写器:
func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
controller.dismiss(animated: true)
}
您需要链接到 MessageUI
框架并使用 MFMailComposeViewController
类。不要忘记导入框架 (#import <MessageUI/MessageUI.h>
)。
这是在iOS中打开邮件撰写器的代码:
源代码: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];
}
}
*** Assertion failure in NSDictionary *_UIRecordArgumentOfInvocationAtIndex(NSInvocation *, NSUInteger, BOOL)(), /SourceCache/UIKit_Sim/UIKit-2380.17/UIAppearance.m:1118
。我使用这个答案解决了它。 - Fonix