如何设置NSExtensionActivationRule谓词？ [英] How do I set NSExtensionActivationRule predicates?
问题描述
甚至比人们聪明得多的人我找到 NSExtensionActivationRule arcane的语法，但即使像我这样的傻瓜也应该能够复制/粘贴示例，不是吗？不幸的是我甚至无法获得 Apple的例子可行。当您点击共享表按钮（下面的堆栈跟踪）时，我的操作扩展程序的主机应用程序崩溃。
Even people far smarter than I am find the syntax for NSExtensionActivationRule arcane, but even a fool like me should be able to copy/paste examples, no? Unfortunately I can't even get Apple's examples to work. The host app for my action extension crashes when you hit the share sheet button (stack trace below).
您应该能够设置 NSExtensionActivationRule 作为字符串，对吗？当我将其设置为 TRUEPREDICATE 以进行调试时，它工作正常。但如果我从Apple（稍微修改为 public.image ）中取这个简单的例子并将其粘贴，我就会崩溃：
You should be able to just set NSExtensionActivationRule as a string, right? It works fine when I set it to TRUEPREDICATE for debugging purposes. But if I take this simple example from Apple (slightly modified for public.image) and paste it in, I get a crash:
{extensionItems = ({
attachments = ({
registeredTypeIdentifiers = (
"public.image"
);
});
})}
我试过 SUBQUERY 东西：
SUBQUERY($extensionItem.attachments, $attachment,
ANY $attachment.registeredTypeIdentifiers
UTI-CONFORMS-TO "public.image").@count >= 1
理想情况下，我只想使用 NSExtensionActivationSupportsImageWithMaxCount 完全避免这种情况，但是此人发现，似乎没有为jpgs激活。
Ideally I'd like to avoid this altogether by just using NSExtensionActivationSupportsImageWithMaxCount but as this person found, it doesn't seem to get activated for jpgs.
无论如何，承诺的堆栈跟踪：
Anyway, that stack trace as promised:
2015-02-21 23:28:08.644 MobileSlideShow[56997:2414043] Communications error: <OS_xpc_error: <error: 0x4c985f4> { count = 1, contents =
"XPCErrorDescription" => <string: 0x4c9883c> { length = 22, contents = "Connection interrupted" }
}>
2015-02-21 23:28:08.651 MobileSlideShow[56997:2413473] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSMutableArray removeObjectsAtIndexes:]: index set cannot be nil'
*** First throw call stack:
(
0 CoreFoundation 0x04060686 __exceptionPreprocess + 182
1 libobjc.A.dylib 0x03b35a97 objc_exception_throw + 44
2 CoreFoundation 0x03f84ffe -[NSMutableArray removeObjectsAtIndexes:] + 654
3 UIKit 0x01d71d78 _UIApplicationExtensionDiscoveryGetPostprocessedExtensions + 350
4 UIKit 0x01d718e3 -[_UIActivityApplicationExtensionDiscovery activitiesMatchingInputItems:error:updateBlock:] + 1237
5 UIKit 0x01c342f2 -[UIActivityViewController _availableActivitiesForItems:applicationExtensionActivities:] + 594
6 UIKit 0x01c3409b -[UIActivityViewController _availableActivitiesForItems:] + 48
7 UIKit 0x01c3519a -[UIActivityViewController _availableActivities] + 57
8 UIKit 0x01c39552 -[UIActivityViewController activityGroupViewController:availableActivitiesInCategory:] + 65
9 UIKit 0x0195c47f -[UIActivityGroupViewController collectionView:didSelectItemAtIndexPath:] + 251
10 UIKit 0x01b8d94d -[UICollectionView _selectItemAtIndexPath:animated:scrollPosition:notifyDelegate:] + 591
11 UIKit 0x01baced4 -[UICollectionView _userSelectItemAtIndexPath:] + 191
12 UIKit 0x01bad0c8 -[UICollectionView touchesEnded:withEvent:] + 492
13 libobjc.A.dylib 0x03b4b7cd -[NSObject performSelector:withObject:withObject:] + 84
14 UIKit 0x0164f714 forwardTouchMethod + 270
15 UIKit 0x0164f784 -[UIResponder touchesEnded:withEvent:] + 31
16 libobjc.A.dylib 0x03b4b7cd -[NSObject performSelector:withObject:withObject:] + 84
17 UIKit 0x0164f714 forwardTouchMethod + 270
18 UIKit 0x0164f784 -[UIResponder touchesEnded:withEvent:] + 31
19 UIKit 0x014e714a -[UIWindow _sendTouchesForEvent:] + 874
20 UIKit 0x014e7c24 -[UIWindow sendEvent:] + 790
21 UIKit 0x014a5d81 -[UIApplication sendEvent:] + 242
22 UIKit 0x014b613b _UIApplicationHandleEventFromQueueEvent + 21263
23 UIKit 0x01489599 _UIApplicationHandleEventQueue + 2206
24 CoreFoundation 0x03f820ff __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
25 CoreFoundation 0x03f77c0d __CFRunLoopDoSources0 + 253
26 CoreFoundation 0x03f77168 __CFRunLoopRun + 952
27 CoreFoundation 0x03f76aeb CFRunLoopRunSpecific + 443
28 CoreFoundation 0x03f7691b CFRunLoopRunInMode + 123
29 GraphicsServices 0x0089e2c9 GSEventRunModal + 192
30 GraphicsServices 0x0089e106 GSEventRun + 104
31 UIKit 0x0148d366 UIApplicationMain + 1526
32 MobileSlideShow 0x00092724 MobileSlideShow + 63268
33 libdyld.dylib 0x049dcac9 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
推荐答案
它应该是这样的，对我来说很好用，只需尝试：
This is how it should look like and works fine for me, just try:
<key>NSExtension</key>
<dict>
<key>NSExtensionAttributes</key>
<dict>
<key>NSExtensionActivationRule</key>
<string>SUBQUERY (
extensionItems,
$extensionItem,
SUBQUERY (
$extensionItem.attachments,
$attachment,
(
ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "com.adobe.pdf"
|| ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.image"
|| ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.plain-text"
|| ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.png"
|| ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.jpeg"
|| ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.jpeg-2000"
|| ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "com.compuserve.gif"
|| ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "com.microsoft.bmp"
)
).@count == 1
).@count == 1
</string>
</dict>
<key>NSExtensionMainStoryboard</key>
<string>MainInterface</string>
<key>NSExtensionPointIdentifier</key>
<string>com.apple.ui-services</string>
</dict>
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