UIActivityViewController & UIDocumentInteractionController 不显示选项

Question

我是 UIActivityViewController 的新手，也许我缺少基本的了解。我想要做的是将 csv、xml 和 vcard 文件附加到活动控制器并显示保管箱、谷歌驱动器等选项。我已经在我的 iPhone 上下载并安装了 Dropbox、Google Drive 等应用程序。

现在，当我启动 UIActivityViewController 时，我看到的只是我的活动控制器中的默认消息和电子邮件应用程序。我怎样才能让其他应用程序也出现在他们的身上？我是否需要为每个应用单独安装 SDK 并以某种方式将它们合并到我的应用中？

这是我最想看到的

但这是我看到的。

这是我目前尝试过的代码

-(IBAction) dropBoxAction
{

    paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask ,YES);
    NSString* documentsPath = [paths objectAtIndex:0];

    //CSV
    NSMutableString *fileNameStr = [NSMutableString stringWithFormat:@"test_CSV_Backup.csv"];
    NSString* csvDataFileStr = [documentsPath stringByAppendingPathComponent:fileNameStr];
    NSData *csvData = [NSData dataWithContentsOfFile:csvDataFileStr];

    //EXCEL
    NSMutableString *fileNameStr2 = [NSMutableString stringWithFormat:@"test_EXCEL_Backup.xml"];
    NSString* excelDataFileStr = [documentsPath stringByAppendingPathComponent:fileNameStr2];
    NSData *excelData = [NSData dataWithContentsOfFile:excelDataFileStr];

    //VCARD
    NSMutableString *fileNameStr3 = [NSMutableString stringWithFormat:@"test_VCARD_Backup.vcf"];
    NSString* vcardDataFileStr = [documentsPath stringByAppendingPathComponent:fileNameStr3];
    NSData *vcardData = [NSData dataWithContentsOfFile:vcardDataFileStr];


    //adding them all together
    NSMutableArray *sharingItems = [NSMutableArray new];
    [sharingItems addObject:csvData];
    [sharingItems addObject:excelData];
    [sharingItems addObject:vcardData];

    UIActivity *activity = [[UIActivity alloc] init];
    NSArray *applicationActivities = @[activity];

    UIActivityViewController *activityController = [[UIActivityViewController alloc] initWithActivityItems:sharingItems applicationActivities:applicationActivities];
    [self presentViewController:activityController animated:YES completion:nil];


}

Answer 1

正如@rmaddy所说，你应该用UIDocumentInteractionController代替UIActivityViewController，就像这样：

UIDocumentInteractionController *dc = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:fileNameStr]];
[dc presentOptionsMenuFromRect:self.view.bounds inView:self.view animated:YES];

Answer 2

对于任何对未来感兴趣的人，这里的代码都在一个地方。如果这有帮助，请给它评分。

在你的 *.h 文件中添加这个

@interface v1BackupComplete : UIViewController <UIDocumentInteractionControllerDelegate>
{

    UIDocumentInteractionController *docController;

}

在你的 *.m 文件中添加这个

/************************
 * Dropbox ACTION
 ************************/
-(IBAction) dropBoxAction2
{
    NSLog(@"dropBoxAction2 ...");

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask ,YES);
    NSString* documentsPath = [paths objectAtIndex:0];
    NSMutableString *fileNameStr3 = [NSMutableString stringWithFormat:@"test_VCARD_Backup.vcf"];
    NSString* vcardDataFileStr = [documentsPath stringByAppendingPathComponent:fileNameStr3];


    NSURL *fileURL = [NSURL fileURLWithPath:vcardDataFileStr];
    docController = [self setupControllerWithURL:fileURL
                                   usingDelegate:self];

    bool didShow = [docController presentOpenInMenuFromRect:self.view.bounds inView:self.view animated:YES];

    NSLog(@"didShow %d ...", didShow);

    if (!didShow)
    {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"ERROR"
                                                        message:@"Sorry. The appropriate apps are not found on this device."
                                                       delegate:nil
                                              cancelButtonTitle:@"OK"
                                              otherButtonTitles: nil];
        [alert show];
    }
}


#pragma mark - UIDocumentInteractionControllerDelegate
- (UIDocumentInteractionController *) setupControllerWithURL:(NSURL *)fileURL
                                               usingDelegate:(id <UIDocumentInteractionControllerDelegate>)         interactionDelegate {

    UIDocumentInteractionController *interactionController =
    [UIDocumentInteractionController interactionControllerWithURL:fileURL];
    interactionController.delegate = interactionDelegate;

    return interactionController;
}

- (UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)controller
{
    return self;
}

- (UIView *)documentInteractionControllerViewForPreview:(UIDocumentInteractionController *)controller
{
    return self.view;
}

- (CGRect)documentInteractionControllerRectForPreview:(UIDocumentInteractionController *)controller
{
    return self.view.frame;
}

Answer 3

UIActivityViewController 仅显示标准内置活动以及您作为applicationActivities 传递的任何自定义活动。

对于你正在做的事情，你不想要UIActivityViewController。你想要一个UIDocumentInteractionController。如果您只想显示可以打开文件的现有应用，请使用presentOpenInMenuFrom... 方法之一。

但请注意，这仅用于单个文件，而不是三个。

在这种情况下传递三个文件是没有意义的。

Answer 4

我在这里使用您的代码使用保管箱打开，并且只有在我使用了 presentPreview 方法（如下）之后它才对我有用。 pdf 显示为预览，然后在预览共享按钮上单击（右上角）保管箱选项（“在保管箱中打开”）完成了这项工作。因为它在附件预览中的邮件应用程序中工作。

[interactionController presentPreviewAnimated:YES];

当我尝试使用 presentOpenInMenuFromRect 打开时，它在选择“在保管箱中打开”时崩溃。