IOS程序内发短信

iOS4.0新加入了MFMessageComposeViewController和MFMessageComposeViewControllerDelegate,提供了发送短信的接口,可以像发送邮件那样不用跳出程序来发送短信. 介绍可参阅Message UI
Framework Reference

一些笔记:

MFMessageComposeViewController

• 提供了操作界面
• 使用前必须检查canSendText方法,若返回NO则不应将这个controller展现出来,而应该提示用户不支持发送短信功能.
• 界面不能自行定制
• 要发送的短信的内容(body)和收件人(recipients)在展现这个controller前需初始化好,展现了之后短信内容不能通过程序来进行修改.不过用户仍然可以手工修改短信内容和选择收件人
• 用户点了发送或者取消,或者发送失败时,MFMessageComposeViewControllerDelegate 的– messageComposeViewController:didFinishWithResult:方法都能得到通知,在这里进行相应的处理

若在iOS3.0上运行的话,会提示dyld: Symbol not found: _OBJC_CLASS_$_MFMessageComposeViewController .解决方案:

1. MessageUI.framework的引入类型应选择weak(在target -> Get Info -> General -> Linked Libraries -> MessageUI.framework -> Type 里修改)
2. 不要在.h文件里直接import MessageUI/MFMessageComposeViewController.h,改为import <MessageUI/MessageUI.h>

代码:

01	#pragma mark -

02	#pragma mark SMS

03

04	-(IBAction)showSMSPicker:(id)sender {

05	//  The MFMessageComposeViewController class is only available in iPhone OS 4.0 or later.

06	//  So, we must verify the existence of the above class and log an error message for devices

07	//      running earlier versions of the iPhone OS. Set feedbackMsg if device doesn't support

08	//      MFMessageComposeViewController API.

09	Class messageClass = (NSClassFromString(@"MFMessageComposeViewController"));

10

11	if (messageClass != nil) {

12	// Check whether the current device is configured for sending SMS messages

13	if ([messageClass canSendText]) {

14	[self displaySMSComposerSheet];

15

}

16

else {

17	[UIAlertView quickAlertWithTitle:@"设备没有短信功能" messageTitle:nil dismissTitle:@"关闭"];

18

}

19

}

20

else {

21	[UIAlertView quickAlertWithTitle:@"iOS版本过低,iOS4.0以上才支持程序内发送短信" messageTitle:nil dismissTitle:@"关闭"];

22

}

23

}

24

25	-(void)displaySMSComposerSheet

26

{

27	MFMessageComposeViewController *picker = [[MFMessageComposeViewController alloc] init];

28	picker.messageComposeDelegate = self;

29

30	NSMutableString* absUrl = [[NSMutableString alloc] initWithString:web.request.URL.absoluteString];

31	[absUrl replaceOccurrencesOfString:@"http://i.aizheke.com" withString:@"http://m.aizheke.com" options:NSCaseInsensitiveSearch range:NSMakeRange(0, [absUrl length])];

32

33	picker.body=[NSString stringWithFormat:@"我在爱折客上看到：%@ 可能对你有用，推荐给你！link：%@"

34	,[web stringByEvaluatingJavaScriptFromString:@"document.title"]

35

,absUrl];

36	[absUrl release];

37	[self presentModalViewController:picker animated:YES];

38	[picker release];

39

}

40

41	- (void)messageComposeViewController:(MFMessageComposeViewController *)controller

42	didFinishWithResult:(MessageComposeResult)result {

43

44	switch (result)

45

{

46	case MessageComposeResultCancelled:

47	LOG_EXPR(@"Result: SMS sending canceled");

48

break;

49	case MessageComposeResultSent:

50	LOG_EXPR(@"Result: SMS sent");

51

break;

52	case MessageComposeResultFailed:

53	[UIAlertView quickAlertWithTitle:@"短信发送失败" messageTitle:nil dismissTitle:@"关闭"];

54

break;

55

default:

56	LOG_EXPR(@"Result: SMS not sent");

57

break;

58

}

59	[self dismissModalViewControllerAnimated:YES];

60

}