ios-蘋果的UIActivityViewController

蘋果的UIActivityViewController

應用中用到 UIActivityViewController 。

使用代碼：

    NSString *postText = @"My Text";
    NSArray *activityItems = @[postText];
    UIActivityViewController *activityController =
    [[UIActivityViewController alloc]
     initWithActivityItems:activityItems applicationActivities:nil];
    activityController.excludedActivityTypes = [NSArray arrayWithObjects:UIActivityTypePrint, UIActivityTypeCopyToPasteboard, UIActivityTypeAssignToContact, UIActivityTypeSaveToCameraRoll, nil];
    [self presentViewController:activityController
                       animated:YES completion:nil];

運行正常,從UIActivityViewController打開郵件的時候，也會顯示出需要的內容。

現在我要在數據庫中執行一些動作，條件是在post或者郵件發送成功之後。

應該怎麼做？

最佳回答：

[activityController setCompletionHandler:^(NSString *act, BOOL done)
             {

                 NSLog(@"act type %@",act);
                 NSString *ServiceMsg = nil;
                 if ( [act isEqualToString:UIActivityTypeMail] )           ServiceMsg = @"Mail sent";
                 if ( [act isEqualToString:UIActivityTypePostToTwitter] )  ServiceMsg = @"Post on twitter, ok!";
                 if ( [act isEqualToString:UIActivityTypePostToFacebook] ) ServiceMsg = @"Post on facebook, ok!";

                 if ( done )
                 {
                     UIAlertView *Alert = [[UIAlertView alloc] initWithTitle:ServiceMsg message:@"" delegate:nil cancelButtonTitle:@"ok" otherButtonTitles:nil];
                     [Alert show];
                     [Alert release];
                 }
                 else
                 {
                      // didn't succeed. 
                 }
             }];

用完成處理程序的‘done’參數來判斷是否完成。