我正在使用 UIActivityViewController 来显示共享选项。除了用户选择 Gmail 共享选项外，一切正常。 在列表中，当我选择 Gmail 时，主题和正文被设置为两次。

NSString *socialUrl = [NSString stringWithFormat:@"https://www.youtube.com/watch?v=%@",videoId];
       NSURL *url = [NSURL URLWithString:socialUrl];
        NSString *strText = @"Shared via TopCod";
        NSString *url1 = @"http://www.topcod.tv/";

        NSArray *ary =[[NSArray alloc]initWithObjects:url,strText,url1,nil];
    UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:ary applicationActivities:nil];
    NSArray *excludeActivities = @[UIActivityTypePostToWeibo,
                                    UIActivityTypeMessage,
                                    UIActivityTypeMail,
                                    UIActivityTypePrint,
                                    UIActivityTypeCopyToPasteboard,
                                    UIActivityTypeAssignToContact,
                                    UIActivityTypeSaveToCameraRoll,
                                    UIActivityTypeAddToReadingList,
                                    UIActivityTypePostToFlickr,
                                    UIActivityTypePostToVimeo,
                                    UIActivityTypePostToTencentWeibo,
                                    UIActivityTypeAirDrop,
                                    ];
    [activityViewController setValue:strText forKey:@"subject"];
        activityViewController.excludedActivityTypes = excludeActivities;
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
        [self presentViewController:activityViewController animated:YES completion:nil];

最佳答案

您可以使用以下代码来完成您的工作。这里不是使用两个单独的字符串，而是可以使用单个字符串并使用 \n 分隔符来添加新行。

NSString *socialUrl = [NSString stringWithFormat:@"https://www.youtube.com/watch?v=%@",videoId];
       NSURL *url = [NSURL URLWithString:socialUrl];
        NSString *strText = @"Shared via TopCod\n\nhttp://www.topcod.tv/";


        NSArray *ary =[[NSArray alloc]initWithObjects:url,strText,nil];
    UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:ary applicationActivities:nil];
    NSArray *excludeActivities = @[UIActivityTypePostToWeibo,
                                    UIActivityTypeMessage,
                                    UIActivityTypeMail,
                                    UIActivityTypePrint,
                                    UIActivityTypeCopyToPasteboard,
                                    UIActivityTypeAssignToContact,
                                    UIActivityTypeSaveToCameraRoll,
                                    UIActivityTypeAddToReadingList,
                                    UIActivityTypePostToFlickr,
                                    UIActivityTypePostToVimeo,
                                    UIActivityTypePostToTencentWeibo,
                                    UIActivityTypeAirDrop,
                                    ];
    [activityViewController setValue:strText forKey:@"subject"];
        activityViewController.excludedActivityTypes = excludeActivities;
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
        [self presentViewController:activityViewController animated:YES completion:nil];

希望这对您有所帮助。

关于ios - UIActivityViewController Gmail 共享选项的主题和正文设置了两次？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32646295/