我正在尝试使用新的iOS 8应用扩展程序创建共享扩展。我试图获取Safari网站的当前URL并将其显示在UILabel中。很简单。
我正在按照苹果公司的官方扩展指南 https://developer.apple.com/library/content/documentation/General/Conceptual/ExtensibilityPG/Share.html#//apple_ref/doc/uid/TP40014214-CH12-SW1 进行操作,但有些事情并没有像预期的那样工作。我知道这只是测试版,但也许我只是做错了什么。
这是我从扩展的ViewController中获取来自Safari的URL的代码:
-(void)viewDidAppear:(BOOL)animated{
NSExtensionContext *myExtensionContext = [self extensionContext];
NSArray *inputItems = [myExtensionContext inputItems];
NSMutableString* mutableString = [[NSMutableString alloc]init];
for(NSExtensionItem* item in inputItems){
NSMutableString* temp = [NSMutableString stringWithFormat:@"%@, %@, %lu,
%lu - ",item.attributedTitle,[item.attributedContentText string],
(unsigned long)[item.userInfo count],[item.attachments count]];
for(NSString* key in [item.userInfo allKeys]){
NSArray* array = [item.userInfo objectForKey:@"NSExtensionItemAttachmentsKey"];
[temp appendString:[NSString stringWithFormat:@" in array:%lu@",[array count]]];
}
[mutableString appendString:temp];
}
self.myLabel.text = mutableString;
}
以下是我扩展程序的 Info.plist 文件内容:
<dict>
<key>NSExtensionMainStoryboard</key>
<string>MainInterface</string>
<key>NSExtensionPointIdentifier</key>
<string>com.apple.share-services</string>
<key>NSExtensionActivationRule</key>
<dict>
<key>NSExtensionActivationSupportsWebURLWithMaxCount</key>
<integer>200</integer>
</dict>
</dict>
当我在Safari中访问苹果iPod支持页面并尝试分享到我的扩展时,我会得到以下数值,但没有URL:
item.attributedTitle = (null)
item.attributedContentText = "iPod - Apple Support"
item.userInfo.count = 2 (two keys: NSExtensionAttributedContentTextKey and
NSExtensionItemAttachmentsKey)
item.attachments.count = 0
字典对象中的数组始终为空。
当我使用系统邮件应用程序与苹果站点分享时,URL会发布到消息中。那么为什么我的扩展中没有URL?