UIActivityViewController 中缺少 Airdrop 选项

Question

出于某种原因，当我在我的应用程序中使用 ActivityViewController 时，我无法获得使用 Airdrop 进行共享的选项。如果我从 Chrome 使用它，我会得到选项：

这是我正在使用的代码：

NSMutableArray * items = [NSMutableArray new];
[items addObject:@"text for share"];
[items addObject:[UIImage imageNamed:@"image"]];
NSArray *activityItems = [NSArray arrayWithArray:items];


UIActivityViewController *activityViewController =
[[UIActivityViewController alloc] initWithActivityItems:activityItems
                                  applicationActivities:nil];


[self presentViewController:activityViewController animated:YES completion:^{
  .....
}];

但我只得到这个：

如何添加空投选项？

Answer 1

为了能够通过 AirDrop 发送内容，项目需要是 URL。我找不到官方文档，但在这个 Apple AirDrop Example 中它指出：

URLs can be used as a simple way to transfer information between devices. Apps can easily parse a received URL to determine what action to take. After an app registers a URL scheme (including custom schemes), the system will know to launch that app when a URL of that type is received.

UIActivityViewController 中缺少 Airdrop 选项

Airdrop option missing in UIActivityViewController

ios

objective-c

uiactivityviewcontroller