iOS开发——发短信，邮件

　　在IOS开发中，有时候我们会需要用到邮件发送的功能。比如，接收用户反馈和程序崩溃通知等等，这个功能是很常用的。在苹果系统中，如果彼此的手机都是iOS设备，并且开通了iMessage功能，那么彼此之间的短信是走网络通道，而不走运营商的通道，短信也顺便写写喽。

　　还是老规矩，直接上代码。

//

//  ViewController.m

//  Demo-testEmail

//

//  Created by yyt on 16/5/16.

//  Copyright © 2016年 yyt. All rights reserved.

//

#import "ViewController.h"

#import <MessageUI/MessageUI.h>

@interface ViewController ()<UIActionSheetDelegate,MFMailComposeViewControllerDelegate,MFMessageComposeViewControllerDelegate>

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];

button.frame = CGRectMake(self.view.bounds.size.width/2 - 30, 200, 60, 40);

button.backgroundColor = [UIColor orangeColor];

[button setTitle:@"分享" forState:UIControlStateNormal];

[button addTarget:self action:@selector(clickButton) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button];

}

- (void)clickButton {

UIActionSheet *actionSheet=[[UIActionSheet alloc]initWithTitle:@"分享" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:@"Email",@"Message", nil];

[actionSheet showInView:self.view];

}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {

if(buttonIndex==1){

if ([MFMessageComposeViewController canSendText]) {

[self sendSMS:@"I‘m using iHeper,it is great!" recipientList:nil];

} else {

UIAlertView *alert=[[UIAlertView alloc]initWithTitle:nil message:@"系统短信不可用！" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];

[alert show];

}

}else if(buttonIndex==0){

if ([MFMailComposeViewController canSendMail]) { // 用户已设置邮件账户

[self sendEmailAction]; // 调用发送邮件的代码

} else {

UIAlertView *alert=[[UIAlertView alloc]initWithTitle:nil message:@"系统邮箱未设置账号！" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];

[alert show];

}

}

}

- (void)sendEmailAction {

MFMailComposeViewController *mc = [[MFMailComposeViewController alloc] init];

mc.mailComposeDelegate = self;

[mc setSubject:@"Hi!"];

[mc setMessageBody:@"I‘m using iHeper,it is great!" isHTML:NO];

[self presentViewController:mc animated:YES completion:nil];

}

//调用sendSMS函数，发送内容，收件人列表

- (void)sendSMS:(NSString *)bodyOfMessage recipientList:(NSArray *)recipients {

MFMessageComposeViewController *controller = [[MFMessageComposeViewController alloc] init];

if([MFMessageComposeViewController canSendText])

{

controller.body = bodyOfMessage;

controller.recipients = recipients;

controller.messageComposeDelegate = self;

[self presentViewController:controller animated:YES completion:nil];

}

}

// 处理发送完的响应结果

- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result {

[self dismissViewControllerAnimated:YES completion:nil];

if (result == MessageComposeResultCancelled)

NSLog(@"Message cancelled");

else if (result == MessageComposeResultSent)

NSLog(@"Message sent");

else

NSLog(@"Message failed") ;

}

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {

switch (result)

{

case MFMailComposeResultCancelled:

NSLog(@"Mail send canceled...");

break;

case MFMailComposeResultSaved:

NSLog(@"Mail saved...");

break;

case MFMailComposeResultSent:

NSLog(@"Mail sent...");

break;

case MFMailComposeResultFailed:

NSLog(@"Mail send errored: %@...", [error localizedDescription]);

break;

default:

break;

}

[self dismissViewControllerAnimated:YES completion:nil];

}

@end