В настоящее время мы, вероятно, не можем отключить Save to Files
или Add to Shared Album
, добавив excludedActivityTypes
в activityViewController
. Но мы можем предотвратить, когда пользователь нажмет два типа активности, не будет выполнять действие, вместо этого мы покажем предупреждение.
Сначала мы создаем собственные UIActivityItemProvider
class ActivityItemProvider: UIActivityItemProvider {
override func activityViewController(_ activityViewController: UIActivityViewController, itemForActivityType activityType: UIActivityType) -> Any? {
// in here we'll check activityType = "com.apple.CloudDocsUI.AddToiCloudDrive" (Save to Files),
// activityType = "com.apple.mobileslideshow.StreamShareService" (Shared Album)
if(activityType.rawValue.contains("com.apple.CloudDocsUI.AddToiCloudDrive") || (activityType.rawValue.contains("com.apple.mobileslideshow.StreamShareService") {
// dismiss activityViewController first
activityViewController.dismiss(animated: true, completion: nil)
// show alert controller, we can using UIApplication.shared.keyWindow?.rootViewController to present alert
return nil
}
return self.placeholderItem
}
Там, где мы вызываем UIActivityController
, давайте использовать
let item = ActivityItemProvider.init(placeholderItem: {your item})
let activityViewController = UIActivityViewController.init(activityItems: item, applicationActivities: nil)
Версия ObjectiveC
#import "BRActivityItemProvider.h"
#import "UIViewController+Additions.h"
@implementation BRActivityItemProvider
- (id)activityViewController:(UIActivityViewController *)activityViewController itemForActivityType:(UIActivityType)activityType {
[super activityViewController:activityViewController itemForActivityType:activityType];
NSLog(@"itemForActivityType %@", activityType);
if([activityType containsString:@"com.apple.CloudDocsUI.AddToiCloudDrive"] || [activityType containsString:@"com.apple.mobileslideshow.StreamShareService"]) {
[activityViewController dismissViewControllerAnimated:true completion:^{
UIViewController *rootController = [UIApplication sharedApplication].keyWindow.rootViewController;
if(rootController != nil) {
NSString *str = [activityType containsString:@"com.apple.CloudDocsUI.AddToiCloudDrive"]
? @"Cannot save file to iCloud Driver"
: @"Cannot save file to Shared Album";
dispatch_async(dispatch_get_main_queue(), ^{
// this's my custom show alert controller, you can change your own
[rootController showAlertController:str action:^(UIAlertAction * _Nonnull action) {
}];
});
}
}];
return nil;
}
return self.placeholderItem;
}
Где звонить UIActivityViewController
BRActivityItemProvider *itemProvider = [[BRActivityItemProvider alloc]initWithPlaceholderItem:item];
UIActivityViewController *activityController = [[UIActivityViewController alloc]initWithActivityItems:itemProvider applicationActivities:nil];
activityController.popoverPresentationController.sourceView = controller.view;
// your logic code
// ....
person
Giang
schedule
17.02.2020