創建App-傳發短訊

為了本App的傳送短訊功能，因此來實作!
首先需要在專案的框架中加入MessageUI Framework，便引入MessageUI/MessageUI.h

/**
 Theme: Send Message
 IDE: Xcode 5
 Language: Objective C
 Date: 103/05/31
 Author: HappyMan
 Blog: https://cg2010studio.wordpress.com/
 */
-(IBAction)messageButtonClicked:(UIButton *)button
{
    MFMessageComposeViewController *mcvc = [[MFMessageComposeViewController alloc] init];
    // 判斷裝置是否在可傳送訊息的狀態
    if([MFMessageComposeViewController canSendText]) {
        // 設定SMS訊息內容
        mcvc.body = @"嗨～猜猜我是誰？我是快樂測試人！";
        // 設定接傳送對象的號碼
        mcvc.recipients = [NSArray arrayWithObjects:@"0912345678",nil];
        // 設定代理
        mcvc.messageComposeDelegate = self;
        // 顯示controller的畫面
        [self presentViewController:mcvc animated:YES completion:nil];
    }
    else {
        NSLog(@"此設備無法發送簡訊⋯⋯");
    }
}
 
#pragma mark - MFMessageComposeViewControllerDelegate
-(void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result
{
    NSLog(@"%@", controller.recipients);
    switch (result) {
        case MessageComposeResultSent:
            // 訊息傳送成功
            NSLog(@"訊息傳送成功⋯⋯");
            break;
        case MessageComposeResultFailed:
            // 訊息傳送失敗
            NSLog(@"訊息傳送失敗⋯⋯");
            break;
        case MessageComposeResultCancelled:
            // 訊息被使用者取消傳送
            NSLog(@"訊息被使用者取消傳送⋯⋯");
            break;
        default:
            break;
    }
    [self dismissViewControllerAnimated:YES completion:nil];
}