(十四)——打电话、发短信

最后更新于:2022-04-01 07:05:21

电话、短信是手机的基础功能,iOS中提供了接口,让我们调用。这篇文章简单的介绍一下iOS的打电话、发短信在程序中怎么调用。 **1、打电话** ~~~ [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://10010"]];//打电话 ~~~ 使用openURL这个API打电话结束后,返回的是系统的拨打电话界面,如何才能返回自己的应用呢?有两种方法与大家分享。 第一种是用UIWebView加载电话,这种是合法的,可以上App Store的。 代码如下: ~~~ UIWebView*callWebview =[[UIWebView alloc] init]; NSURL *telURL =[NSURL URLWithString:@"tel:10010"]; [callWebview loadRequest:[NSURLRequest requestWithURL:telURL]]; //记得添加到view上 [self.view addSubview:callWebview]; ~~~ 第二种是私有方法,不能上App Store的(自己没试过)。  ~~~ [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"telprompt://10010"]]; ~~~ 上面的代码只是把第一个方法中的tel为telprompt. **2、发短信** iOS中可以使用两种方式发送短信,最简单是使用openURL: ~~~ [[UIApplication sharedApplication]openURL:[NSURL URLWithString:@"sms://10010"]];//发短信 ~~~ 上面方式无法指定短信内容,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 UIFramework Reference](http://developer.apple.com/library/ios/#documentation/MessageUI/Reference/MFMessageComposeViewController_class/Reference/Reference.html) ![](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-01-14_569725c508f9a.jpg) 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. messageComposeDelegate :代理,处理发送结果 recipients  :收信人 body :短信内容 Frameworks中要引入MessageUI.framework  #import  添加协议:rollerDelegate> ~~~ #import <MessageUI/MessageUI.h> @interface DemoViewController : UIViewController <MFMessageComposeViewControllerDelegate> @end ~~~ 调用MFMessageComposeViewController,同时实现协议MFMessageComposeViewControllerDelegate。 ~~~ - (void)showMessageView { if( [MFMessageComposeViewController canSendText] ){ MFMessageComposeViewController * controller = [[MFMessageComposeViewController alloc]init]; //autorelease]; controller.recipients = [NSArray arrayWithObject:@"10010"]; controller.body = @"测试发短信"; controller.messageComposeDelegate = self; [self presentModalViewController:controller animated:YES]; [[[[controller viewControllers] lastObject] navigationItem] setTitle:@"测试短信"];//修改短信界面标题 }else{ [self alertWithTitle:@"提示信息" msg:@"设备没有短信功能"]; } } //MFMessageComposeViewControllerDelegate - (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result{ [controller dismissModalViewControllerAnimated:NO];//关键的一句 不能为YES switch ( result ) { case MessageComposeResultCancelled: [self alertWithTitle:@"提示信息" msg:@"发送取消"]; break; case MessageComposeResultFailed:// send failed [self alertWithTitle:@"提示信息" msg:@"发送成功"]; break; case MessageComposeResultSent: [self alertWithTitle:@"提示信息" msg:@"发送失败"]; break; default: break; } } - (void) alertWithTitle:(NSString *)title msg:(NSString *)msg { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:msg delegate:self cancelButtonTitle:nil otherButtonTitles:@"确定", nil]; [alert show]; } ~~~
';