ios app内发送短信

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:

MessageUI.framework的引入类型应选择weak(在target -> Get Info -> General -> Linked Libraries -> MessageUI.framework -> Type 里修改)

不要在.h文件里直接import MessageUI/MFMessageComposeViewController.h,改为import <MessageUI/MessageUI.h>

代码:

#pragma mark -
#pragma mark SMS

-(IBAction)showSMSPicker:(id)sender {
//	The MFMessageComposeViewController class is only available in iPhone OS 4.0 or later.
//	So, we must verify the existence of the above class and log an error message for devices
//		running earlier versions of the iPhone OS. Set feedbackMsg if device doesn't support
//		MFMessageComposeViewController API.
Class messageClass = (NSClassFromString(@"MFMessageComposeViewController"));

if (messageClass != nil) {
// Check whether the current device is configured for sending SMS messages
if ([messageClass canSendText]) {
[self displaySMSComposerSheet];
}
else {
[UIAlertView quickAlertWithTitle:@"设备没有短信功能" messageTitle:nil dismissTitle:@"关闭"];
}
}
else {
[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"];
}
}

-(void)displaySMSComposerSheet
{
MFMessageComposeViewController *picker = [[MFMessageComposeViewController alloc] init];
picker.messageComposeDelegate = self;

NSMutableString* absUrl = [[NSMutableString alloc] initWithString:web.request.URL.absoluteString];
[absUrl replaceOccurrencesOfString:@"http://i.aizheke.com" withString:@"http://m.aizheke.com" options:NSCaseInsensitiveSearch range:NSMakeRange(0, [absUrl length])];

picker.body=[NSString stringWithFormat:@"我在爱折客上看到：%@ 可能对你有用，推荐给你！link：%@"
,[web stringByEvaluatingJavaScriptFromString:@"document.title"]
,absUrl];
[absUrl release];
[self presentModalViewController:picker animated:YES];
[picker release];
}

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

switch (result)
{
case MessageComposeResultCancelled:
LOG_EXPR(@"Result: SMS sending canceled");
break;
case MessageComposeResultSent:
LOG_EXPR(@"Result: SMS sent");
break;
case MessageComposeResultFailed:
[UIAlertView quickAlertWithTitle:@"短信发送失败" messageTitle:nil dismissTitle:@"关闭"];
break;
default:
LOG_EXPR(@"Result: SMS not sent");
break;
}
[self dismissModalViewControllerAnimated:YES];
}