文章目錄
- MFMessageComposeViewController
iOS4.0新加入了MFMessageComposeViewController和MFMessageComposeViewControllerDelegate,提供了傳送簡訊的介面,可以像發送郵件那樣不用跳出程式來傳送簡訊. 介紹可參閱Message UI
Framework Reference
一些筆記:
MFMessageComposeViewController
- 提供了操作介面
- 使用前必須檢查canSendText方法,若返回NO則不應將這個controller展現出來,而應該提示使用者不支援傳送簡訊功能.
- 介面不能自行定製
- 要發送的簡訊的內容(body)和收件者(recipients)在展現這個controller前需初始化好,展現了之後簡訊內容不能通過程式來進行修改.不過使用者仍然可以手工修改簡訊內容和選擇收件者
- 使用者點了發送或者取消,或者發送失敗時,MFMessageComposeViewControllerDelegate 的– messageComposeViewController:didFinishWithResult:方法都能得到通知,在這裡進行相應的處理
若在iOS3.0上啟動並執行話,會提示dyld: Symbol not found: _OBJC_CLASS_$_MFMessageComposeViewController .解決方案:
- MessageUI.framework的引入類型應選擇weak(在target -> Get Info -> General -> Linked Libraries -> MessageUI.framework -> Type 裡修改)
- 不要在.h檔案裡直接import MessageUI/MFMessageComposeViewController.h,改為import <MessageUI/MessageUI.h>
代碼:
04 |
-(IBAction)showSMSPicker:(id)sender { |
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// The MFMessageComposeViewController class is only available in iPhone OS 4 . 0 or later. |
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// So, we must verify the existence of the above class and log an error message for devices |
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// running earlier versions of the iPhone OS . Set feedbackMsg if device doesn't support |
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// MFMessageComposeViewController API . |
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Class messageClass = (NSClassFromString(@ "MFMessageComposeViewController" )); |
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if (messageClass != nil ) { |
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// Check whether the current device is configured for sending SMS messages |
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if ([messageClass canSendText]) { |
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[ self displaySMSComposerSheet]; |
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[UIAlertView quickAlertWithTitle:@ "裝置沒有簡訊功能" messageTitle :nil dismissTitle:@ "關閉" ]; |
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[UIAlertView quickAlertWithTitle:@ "iOS版本過低,iOS4.0以上才支援程式內傳送簡訊" messageTitle :nil dismissTitle:@ "關閉" ]; |
25 |
-(void)displaySMSComposerSheet |
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MFMessageComposeViewController *picker = [[MFMessageComposeViewController alloc] init]; |
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picker.messageComposeDelegate = self ; |
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NSMutableString* absUrl = [[NSMutableString alloc] initWithString :web .request. URL .absoluteString]; |
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[absUrl replaceOccurrencesOfString:@ "http://i.aizheke.com" withString:@ "http://m.aizheke.com" options:NSCaseInsensitiveSearch range:NSMakeRange( 0 , [absUrl length])]; |
33 |
picker.body=[NSString stringWithFormat:@ "我在愛折客上看到:%@ 可能對你有用,推薦給你!link:%@" |
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,[web stringByEvaluatingJavaScriptFromString:@ "document.title" ] |
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[ self presentModalViewController :picker animated: YES ]; |
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- (void)messageComposeViewController:(MFMessageComposeViewController *)controller |
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didFinishWithResult:(MessageComposeResult)result { |
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case MessageComposeResultCancelled: |
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LOG_EXPR (@ "Result: SMS sending canceled" ); |
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case MessageComposeResultSent: |
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LOG_EXPR (@ "Result: SMS sent" ); |
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case MessageComposeResultFailed: |
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[UIAlertView quickAlertWithTitle:@ "簡訊發送失敗" messageTitle :nil dismissTitle:@ "關閉" ]; |
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LOG_EXPR (@ "Result: SMS not sent" ); |
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[ self dismissModalViewControllerAnimated: YES ]; |