Objective c 邮件生成器在Xcode中给出了一个错误
我正在尝试使用iOS应用程序发送邮件 方法如下：Objective c 邮件生成器在Xcode中给出了一个错误,objective-c,xcode,email,Objective C,Xcode,Email,我正在尝试使用iOS应用程序发送邮件 方法如下： MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init]; picker.mailComposeDelegate = self; [picker setSubject:@"Reclutamento pompieri"]; // Set up the recipients. NSArray *toR
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self;
[picker setSubject:@"Reclutamento pompieri"];
// Set up the recipients.
NSArray *toRecipients = [NSArray arrayWithObjects:@"test@gmail.com",nil];
[picker setToRecipients:toRecipients];
testoMail = [NSMutableString stringWithFormat: @"This is a test"];
[picker setMessageBody:testoMail isHTML:YES]; //HTML!!!!!!
[self presentViewController:picker animated:YES completion:nil];
//*******************************************************************************************
// The mail compose view controller delegate method
- (void)mailComposeController:(MFMailComposeViewController *)controller //**ERROR STAYS HERE**
didFinishWithResult:(MFMailComposeResult)result
error:(NSError *)error
{
[self dismissModalViewControllerAnimated:YES]
;
#import <UIKit/UIKit.h>
#import <MessageUI/MessageUI.h>
@interface Reclutamento : UIViewController <MFMailComposeViewControllerDelegate>
{
}
- (void)sendMail;
@end
#导入
#进口
@接口Reclutatemento:UIViewController
{
}
-（无效）发送邮件；
@结束
//
// Reclutamento.h
// Pompieri
//
// Created by Reda Bousbah on 15.01.13.
// Copyright (c) 2013 Reda Bousbah. All rights reserved.
//
#import <UIKit/UIKit.h>
#import <MessageUI/MessageUI.h>
#import <MessageUI/MFMailComposeViewController.h>
@interface Reclutamento : UIViewController <MFMailComposeViewControllerDelegate>
{
UITextField *nameTextField;
UITextField *surnameTextField;
UITextField *bornDateTextField;
UITextField *addressTextField;
UITextField *zipTextField;
UITextField *emailTextField;
MFMailComposeViewController *email;
}
@property (nonatomic, retain) MFMailComposeViewController *email;
@property(nonatomic,retain) IBOutlet UITextField *nameTextField;
@property(nonatomic,retain) IBOutlet UITextField *surnameTextField;
@property(nonatomic,retain) IBOutlet UITextField *bornDateTextField;
@property(nonatomic,retain) IBOutlet UITextField *addressTextField;
@property(nonatomic,retain) IBOutlet UITextField *zipTextField;
@property(nonatomic,retain) IBOutlet UITextField *emailTextField;
@property NSString *name;
@property NSString *surname;
@property NSString *bornDate;
@property NSString *address;
@property NSString *zipCode;
@property NSString *miaEmail;
- (IBAction)checkData:(id)sender;
- (IBAction)backgroundTap:(id)sender;
- (IBAction)doneButtonPressed:(id)sender;
- (void)sendMail;
@end
//
//Reclutatemento.h
//蓬皮里
//
//由Reda Bousbah于2013年1月15日创建。
//版权所有（c）2013 Reda Bousbah。保留所有权利。
//
#进口
#进口
#进口
@接口Reclutatemento:UIViewController
{
UITextField*名称文本字段；
UITextField*姓氏textfield；
UITextField*BornDataTextField；
UITextField*地址文本字段；
UITextField*zipTextField；
UITextField*emailTextField；
MFMailComposeViewController*电子邮件；
}
@属性（非原子，保留）MFMailComposeViewController*电子邮件；
@属性（非原子，保留）IBOutlet UITextField*nameTextField；
@属性（非原子，保留）IBOutlet UITextField*姓氏textfield；
@属性（非原子，保留）IBOutlet UITextField*BornDataTextField；
@属性（非原子，保留）IBOutlet UITextField*addressTextField；
@属性（非原子，保留）IBOutlet UITextField*zipTextField；
@属性（非原子，保留）IBOutlet UITextField*emailTextField；
@属性字符串*名称；
@属性字符串*姓氏；
@属性NSString*bornDate；
@属性字符串*地址；
@属性NSString*zipCode；
@属性NSString*miaEmail；
-（iAction）检查数据：（id）发送方；
-（iAction）背景点击：（id）发送者；
-（iAction）doneButtonPressed：（id）发送方；
-（无效）发送邮件；
@结束
//
// Reclutamento.m
// Pompieri
//
// Created by Reda Bousbah on 15.01.13.
// Copyright (c) 2013 Reda Bousbah. All rights reserved.
//
#import "Reclutamento.h"
#import <MessageUI/MessageUI.h>
#import <MessageUI/MFMailComposeViewController.h>
@interface Reclutamento ()
@end
@implementation Reclutamento
@synthesize nameTextField, surnameTextField, bornDateTextField, addressTextField, zipTextField, emailTextField;
@synthesize name, surname, bornDate, address, zipCode, miaEmail;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
nameTextField.text = nil;
surnameTextField.text = nil;
bornDateTextField.text = nil;
addressTextField.text = nil;
zipTextField.text = nil;
emailTextField.text = nil;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSUInteger)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskLandscape;
}
#pragma - getting info from the UI
//NSString *test = nil;
- (IBAction)checkData:(id)sender
{
/*
name = nameTextField.text;
surname = surnameTextField.text;
bornDate = bornDateTextField.text;
address = addressTextField.text;
zipCode = zipTextField.text;
email = emailTextField.text;
*/
//NSLog(@" Nome: %@ \n Cognome: %@ \n Data di nascita: %@ \n Indirizzo: %@ \n Zip: %@ \n email: %@ \n", name, surname, bornDate, address, zipCode, email);
unsigned int x,a = 0;
NSMutableString *messaggioErrore; //stringa variabile
messaggioErrore = [NSMutableString stringWithFormat: @""]; //le stringhe mutabili vanno inizializzate in questo modo!
for (x=0; x<6; x++)
{
switch (x) {
case 0:
if (nameTextField.text == nil) {
[messaggioErrore appendString:@"Nome, "];
a=1;
}
break;
case 1:
if (surnameTextField.text == nil)
{
[messaggioErrore appendString:@"Cognome, "];
a=1;
}
break;
case 2:
if (bornDateTextField.text == nil)
{
[messaggioErrore appendString:@"Data di nascita, "];
a=1;
}
break;
case 3:
if (addressTextField.text == nil)
{
[messaggioErrore appendString:@"Indirizzo, "];
a=1;
}
break;
case 4:
if (zipTextField.text == nil)
{
[messaggioErrore appendString:@"Zip Code, "];
a=1;
}
break;
case 5:
if (emailTextField.text == nil)
{
[messaggioErrore appendString:@"Email, "];
a=1;
}
break;
default:
break;
}
}
NSLog (@"Messaggio errore: %@", messaggioErrore);
if (a == 1) {
NSMutableString *popupErrore;
popupErrore = [NSMutableString stringWithFormat: @"Per inviare compilare i seguenti campi: "];
[popupErrore appendString:messaggioErrore]; //aggiungo i miei errori
[popupErrore appendString: @" grazie della comprensione."]; //
NSLog(@"%@", popupErrore);
UIAlertView *chiamataEffettuata = [[UIAlertView alloc]
initWithTitle:@"ATTENZIONE" //titolo del mio foglio
message:popupErrore
delegate:self
cancelButtonTitle:@"Ok, correggo" //bottone con cui si chiude il messaggio
otherButtonTitles:nil, nil];
[chiamataEffettuata show]; //istanza per mostrare effettivamente il messaggio
}
else
{
name = nameTextField.text;
surname = surnameTextField.text;
bornDate = bornDateTextField.text;
address = addressTextField.text;
zipCode = zipTextField.text;
email = emailTextField.text;
NSMutableString *datiUtente;
datiUtente = [NSMutableString stringWithFormat: @"<br><br> <b>Nome:</b> %@ <br> <b>Cognome:</b> %@ <br> <b>Data di nascita:</b> %@ <br> <b>Indirizzo:</b> %@ <br> <b>Zip:</b> %@ <br> <b>Email:</b> %@ <br>", name, surname, bornDate, address, zipCode, miaEmail];
NSLog(@"Dati utente: %@", datiUtente);
NSMutableString *testoMail;
testoMail = [NSMutableString stringWithFormat: @"Salve, questa mail è stata generata automaticamente dalla applicazione per iPhone ''<b>Pompieri Locarno</b>'' <br> i dati relativi all'utente sono: %@", datiUtente];
NSLog(@"%@", testoMail);
//MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self;
[picker setSubject:@"Reclutamento pompieri"];
// Set up the recipients.
NSArray *toRecipients = [NSArray arrayWithObjects:@"youporn@gmail.com",nil];
//NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com",@"third@example.com", nil];
//NSArray *bccRecipients = [NSArray arrayWithObjects:@"four@example.com",nil];
[picker setToRecipients:toRecipients];
//[picker setCcRecipients:ccRecipients];
//[picker setBccRecipients:bccRecipients];
// Attach an image to the email.
//NSString *path = [[NSBundle mainBundle] pathForResource:@"ipodnano" ofType:@"png"];
//NSData *myData = [NSData dataWithContentsOfFile:path];
//[picker addAttachmentData:myData mimeType:@"image/png" fileName:@"ipodnano"];
// Fill out the email body text.
//NSMutableString *emailBody;
testoMail = [NSMutableString stringWithFormat: @"%@", testoMail];
[picker setMessageBody:testoMail isHTML:YES]; //HTML!!!!!!
// Present the mail composition interface.
[self presentViewController:picker animated:YES completion:nil];
// The mail compose view controller delegate method
- (void)mailComposeController:(MFMailComposeViewController *)controller
didFinishWithResult:(MFMailComposeResult)result
error:(NSError *)error
{
[self dismissModalViewControllerAnimated:YES];
}
}
}
#pragma mark - Mandare email
/*
- (void)sendMail:(NSMutableString*)testoMail{
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self;
[picker setSubject:@"Reclutamento pompieri"];
// Set up the recipients.
NSArray *toRecipients = [NSArray arrayWithObjects:@"reda.bousbah@gmail.com",nil];
//NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com",@"third@example.com", nil];
//NSArray *bccRecipients = [NSArray arrayWithObjects:@"four@example.com",nil];
[picker setToRecipients:toRecipients];
//[picker setCcRecipients:ccRecipients];
//[picker setBccRecipients:bccRecipients];
// Attach an image to the email.
//NSString *path = [[NSBundle mainBundle] pathForResource:@"ipodnano" ofType:@"png"];
//NSData *myData = [NSData dataWithContentsOfFile:path];
//[picker addAttachmentData:myData mimeType:@"image/png" fileName:@"ipodnano"];
// Fill out the email body text.
NSString *emailBody = @"It is raining in sunny California!";
[picker setMessageBody:emailBody isHTML:NO];
// Present the mail composition interface.
[self presentViewController:picker animated:YES completion:nil];
}
*/
#pragma mark - methods to control the keyboard
- (IBAction)backgroundTap:(id)sender //method for resign the keyboard when the background is tapped
{
[nameTextField resignFirstResponder];
[surnameTextField resignFirstResponder];
[bornDateTextField resignFirstResponder];
[addressTextField resignFirstResponder];
[zipTextField resignFirstResponder];
[emailTextField resignFirstResponder];
}
- (IBAction)doneButtonPressed:(id)sender
{
NSLog( @"done button pressed");
[sender resignFirstResponder];
}
@end
//
//Reclutatemento.m
//蓬皮里
//
//由Reda Bousbah于2013年1月15日创建。
//版权所有（c）2013 Reda Bousbah。保留所有权利。
//
#导入“Reclutatemento.h”
#进口
#进口
@接口重合度（）
@结束
@实现重合闸
@合成nameTextField、nameTextField、BornDataTextField、addressTextField、zipTextField、emailTextField；
@综合姓名、姓氏、出生地、地址、邮政编码、miaEmail；
-（id）initWithNibName:（NSString*）nibNameOrNil bundle:（NSBundle*）nibBundleOrNil
{
self=[super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]；
如果（自我）{
//自定义初始化
}
回归自我；
}
-（无效）viewDidLoad
{
[超级视图下载]；
//加载视图后执行任何其他设置。
nameTextField.text=nil；
姓氏textfield.text=nil；
borndatextfield.text=nil；
addressTextField.text=nil；
zipTextField.text=nil；
emailTextField.text=nil；
}
-（无效）未收到记忆警告
{
[超级记忆警告]；
//处置所有可以重新创建的资源。
}
-（整数）支持的接口方向{
返回UIInterfaceOrientationMaskLandscape；
}
#pragma-从UI获取信息
//NSString*测试=nil；
-（iAction）检查数据：（id）发送方
{
/*
name=nameTextField.text；
姓氏=姓氏文本字段.text；
bornDate=bornDateTextField.text；
地址=addressTextField.text；
zipCode=zipTextField.text；
email=emailTextField.text；
*/
//NSLog（@“Nome:%@\n Cognome:%@\n nascita数据：%@\n Indirizzo:%@\n Zip:%@\n电子邮件：%@\n”、姓名、姓氏、出生地、地址、邮编、电子邮件）；
无符号整数x，a=0；
NSMutableString*messaggioErrore；//字符串变量
MessaggioError=[NSMutableString stringWithFormat:@”“]；//le stringhe mutabili vanno-inazializate in questo modo！
对于（x=0；ximport
#import <MessageUI/MFMailComposeViewController.h>
#导入
似乎您已经在方法中定义了-（void）mailComposeController:（MFMailComposeViewController*）控制器。
请在方法之外定义此项
编辑
正如我所说，将定义移出方法。
这是您完整正确的.m文件
//
// Reclutamento.m
// Pompieri
//
// Created by Reda Bousbah on 15.01.13.
// Copyright (c) 2013 Reda Bousbah. All rights reserved.
//
#import "Reclutamento.h"
#import <MessageUI/MessageUI.h>
#import <MessageUI/MFMailComposeViewController.h>
@interface Reclutamento ()
@end
@implementation Reclutamento
@synthesize nameTextField, surnameTextField, bornDateTextField, addressTextField, zipTextField, emailTextField;
@synthesize name, surname, bornDate, address, zipCode, miaEmail;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
nameTextField.text = nil;
surnameTextField.text = nil;
bornDateTextField.text = nil;
addressTextField.text = nil;
zipTextField.text = nil;
emailTextField.text = nil;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSUInteger)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskLandscape;
}
#pragma - getting info from the UI
//NSString *test = nil;
- (IBAction)checkData:(id)sender
{
/*
name = nameTextField.text;
surname = surnameTextField.text;
bornDate = bornDateTextField.text;
address = addressTextField.text;
zipCode = zipTextField.text;
email = emailTextField.text;
*/
//NSLog(@" Nome: %@ \n Cognome: %@ \n Data di nascita: %@ \n Indirizzo: %@ \n Zip: %@ \n email: %@ \n", name, surname, bornDate, address, zipCode, email);
unsigned int x,a = 0;
NSMutableString *messaggioErrore; //stringa variabile
messaggioErrore = [NSMutableString stringWithFormat: @""]; //le stringhe mutabili vanno inizializzate in questo modo!
for (x=0; x<6; x++)
{
switch (x) {
case 0:
if (nameTextField.text == nil) {
[messaggioErrore appendString:@"Nome, "];
a=1;
}
break;
case 1:
if (surnameTextField.text == nil)
{
[messaggioErrore appendString:@"Cognome, "];
a=1;
}
break;
case 2:
if (bornDateTextField.text == nil)
{
[messaggioErrore appendString:@"Data di nascita, "];
a=1;
}
break;
case 3:
if (addressTextField.text == nil)
{
[messaggioErrore appendString:@"Indirizzo, "];
a=1;
}
break;
case 4:
if (zipTextField.text == nil)
{
[messaggioErrore appendString:@"Zip Code, "];
a=1;
}
break;
case 5:
if (emailTextField.text == nil)
{
[messaggioErrore appendString:@"Email, "];
a=1;
}
break;
default:
break;
}
}
NSLog (@"Messaggio errore: %@", messaggioErrore);
if (a == 1) {
NSMutableString *popupErrore;
popupErrore = [NSMutableString stringWithFormat: @"Per inviare compilare i seguenti campi: "];
[popupErrore appendString:messaggioErrore]; //aggiungo i miei errori
[popupErrore appendString: @" grazie della comprensione."]; //
NSLog(@"%@", popupErrore);
UIAlertView *chiamataEffettuata = [[UIAlertView alloc]
initWithTitle:@"ATTENZIONE" //titolo del mio foglio
message:popupErrore
delegate:self
cancelButtonTitle:@"Ok, correggo" //bottone con cui si chiude il messaggio
otherButtonTitles:nil, nil];
[chiamataEffettuata show]; //istanza per mostrare effettivamente il messaggio
}
else
{
name = nameTextField.text;
surname = surnameTextField.text;
bornDate = bornDateTextField.text;
address = addressTextField.text;
zipCode = zipTextField.text;
email = emailTextField.text;
NSMutableString *datiUtente;
datiUtente = [NSMutableString stringWithFormat: @"<br><br> <b>Nome:</b> %@ <br> <b>Cognome:</b> %@ <br> <b>Data di nascita:</b> %@ <br> <b>Indirizzo:</b> %@ <br> <b>Zip:</b> %@ <br> <b>Email:</b> %@ <br>", name, surname, bornDate, address, zipCode, miaEmail];
NSLog(@"Dati utente: %@", datiUtente);
NSMutableString *testoMail;
testoMail = [NSMutableString stringWithFormat: @"Salve, questa mail è stata generata automaticamente dalla applicazione per iPhone ''<b>Pompieri Locarno</b>'' <br> i dati relativi all'utente sono: %@", datiUtente];
NSLog(@"%@", testoMail);
//MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self;
[picker setSubject:@"Reclutamento pompieri"];
// Set up the recipients.
NSArray *toRecipients = [NSArray arrayWithObjects:@"youporn@gmail.com",nil];
//NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com",@"third@example.com", nil];
//NSArray *bccRecipients = [NSArray arrayWithObjects:@"four@example.com",nil];
[picker setToRecipients:toRecipients];
//[picker setCcRecipients:ccRecipients];
//[picker setBccRecipients:bccRecipients];
// Attach an image to the email.
//NSString *path = [[NSBundle mainBundle] pathForResource:@"ipodnano" ofType:@"png"];
//NSData *myData = [NSData dataWithContentsOfFile:path];
//[picker addAttachmentData:myData mimeType:@"image/png" fileName:@"ipodnano"];
// Fill out the email body text.
//NSMutableString *emailBody;
testoMail = [NSMutableString stringWithFormat: @"%@", testoMail];
[picker setMessageBody:testoMail isHTML:YES]; //HTML!!!!!!
// Present the mail composition interface.
[self presentViewController:picker animated:YES completion:nil];
}
}
// The mail compose view controller delegate method
- (void)mailComposeController:(MFMailComposeViewController *)controller
didFinishWithResult:(MFMailComposeResult)result
error:(NSError *)error
{
[self dismissModalViewControllerAnimated:YES];
}
#pragma mark - Mandare email
/*
- (void)sendMail:(NSMutableString*)testoMail{
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self;
[picker setSubject:@"Reclutamento pompieri"];
// Set up the recipients.
NSArray *toRecipients = [NSArray arrayWithObjects:@"reda.bousbah@gmail.com",nil];
//NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com",@"third@example.com", nil];
//NSArray *bccRecipients = [NSArray arrayWithObjects:@"four@example.com",nil];
[picker setToRecipients:toRecipients];
//[picker setCcRecipients:ccRecipients];
//[picker setBccRecipients:bccRecipients];
// Attach an image to the email.
//NSString *path = [[NSBundle mainBundle] pathForResource:@"ipodnano" ofType:@"png"];
//NSData *myData = [NSData dataWithContentsOfFile:path];
//[picker addAttachmentData:myData mimeType:@"image/png" fileName:@"ipodnano"];
// Fill out the email body text.
NSString *emailBody = @"It is raining in sunny California!";
[picker setMessageBody:emailBody isHTML:NO];
// Present the mail composition interface.
[self presentViewController:picker animated:YES completion:nil];
}
*/
#pragma mark - methods to control the keyboard
- (IBAction)backgroundTap:(id)sender //method for resign the keyboard when the background is tapped
{
[nameTextField resignFirstResponder];
[surnameTextField resignFirstResponder];
[bornDateTextField resignFirstResponder];
[addressTextField resignFirstResponder];
[zipTextField resignFirstResponder];
[emailTextField resignFirstResponder];
}
- (IBAction)doneButtonPressed:(id)sender
{
NSLog( @"done button pressed");
[sender resignFirstResponder];
}
@end
//
//Reclutatemento.m
//蓬皮里
//
//由Reda Bousbah于2013年1月15日创建。
//版权所有（c）2013 Reda Bousbah。保留所有权利。
//
#导入“Reclutatemento.h”
#进口
#进口
@接口重合度（）
@结束
@实现重合闸
@合成nameTextField、nameTextField、BornDataTextField、addressTextField、zipTextField、emailTextField；
@综合姓名、姓氏、出生地、地址、邮政编码、miaEmail；
-（id）initWithNibName:（NSString*）nibNameOrNil bundle:（NSBundle*）nibBundleOrNil
{
self=[super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]；
如果（自我）{
//自定义初始化
}
回归自我；
}
-（无效）viewDidLoad
{
[超级视图下载]；
//加载视图后执行任何其他设置。
nameTextField.text=nil；
姓氏textfield.text=nil；
borndatextfield.text=nil；
addressTextField.text=nil；
zipTextField.text=nil；
emailTextField.text=nil；
}
-（无效）未收到记忆警告
{
[超级记忆警告]；
//处置所有可以重新创建的资源。
}
-（整数）支持的接口方向{
返回UIInterfaceOrientationMaskLandscape；
}
#pragma-从UI获取信息
//NSString*测试=nil；
-（iAction）检查数据：（id）发送方
{
/*
name=nameTextField.text；
姓氏=姓氏文本字段.text；
bornDate=bornDateTextField.text；
地址=addressTextField.text；
zipCode=zipTextField.text；
email=emailTextField.text；
*/
//NSLog（@“Nome:%@\n Cognome:%@\n nascita数据：%@\n Indirizzo:%@\n Zip:%@\n电子邮件：%@\n”、姓名、姓氏、出生地、地址、邮编、电子邮件）；
无符号整数x，a=0；
NSMutableString*messaggioErrore；//字符串变量
MessaggioError=[NSMutableString stringWithFormat:@”“]；//le stringhe mutabili vanno-inazializate in questo modo！
对于（x=0；x将MessageUI.framework添加到项目中。单击导航器中的项目，选择“构建阶段”，然后将其添加到“与库链接”部分下