ios - 在菜单视图中排序项目后丢失的项目

Question

我的功能有问题UIActivity。

首先，我创建了 3 个活动项目：

1. activityDownload
2. activityTrash
3. activityMove.

并添加到UIActivityViewController 然后，当我介绍UIActivityViewController其中包括上述 3 项时。好的，这里没问题。然后，当我单击“更多”按钮并对项目进行排序时，例如，我将“移动”按钮移到顶部，单击“完成”按钮后，我不知道为什么下载，垃圾项目丢失了？移动项目仅显示在 AirDrop 菜单视图中。

NSURL *url = [self fileToURL:self.documentName];
NSArray *objectsToShare = @[url];

AirDropActivityView *activityDownload = [[AirDropActivityView alloc] init];
activityDownload.airDropType = 0;
AirDropActivityView *activityTrash = [[AirDropActivityView alloc] init];
activityTrash.airDropType = 1;
AirDropActivityView *activityMove = [[AirDropActivityView alloc] init];
activityMove.airDropType = 2;

NSArray *uiActivitys = @[activityDownload,activityTrash,activityMove];
UIActivityViewController *controller = [[UIActivityViewController alloc] initWithActivityItems:objectsToShare applicationActivities:uiActivitys];

// Exclude all activities except AirDrop.
NSArray *excludedActivities = @[UIActivityTypePostToTwitter, UIActivityTypePostToFacebook, UIActivityTypePostToWeibo,UIActivityTypeMessage,UIActivityTypePrint, UIActivityTypeCopyToPasteboard UIActivityTypeAssignToContact,UIActivityTypeSaveToCameraRoll,UIActivityTypeAddToReadingList, UIActivityTypePostToFlickr,UIActivityTypePostToVimeo,UIActivityTypePostToTencentWeibo];
controller.excludedActivityTypes = excludedActivities;

// Present the controller
[self presentViewController:controller animated:YES completion:nil];

https://gist.github.com/tranhieutt/f73999234339f31aa86c

请看截图：

Answer 1

这可能是您正在使用的所有自定义 UIActivity 视图，具有相同的视图activityType会导致此问题。

因此，我建议为UIActivity您要使用的每个视图创建更多自定义。像这样：

创建AirDropActivityView1；在AirDropActivityView1.m中，实现：

#import "AirDropActivityView1.h"

@implementation AirDropActivityView

- (NSString *)activityType
{
    return @"youapp.Activity1";
}

- (NSString *)activityTitle
{
    return @"Activity1";
}

- (BOOL)canPerformWithActivityItems:(NSArray *)activityItems
{
    return YES;
}

@end

与AirDropActivityView2.m

    #import "AirDropActivityView2.h"

    @implementation AirDropActivityView

    - (NSString *)activityType
    {
        return @"youapp.Activity2";
    }

    - (NSString *)activityTitle
    {
        return @"Activity2";
    }

    - (BOOL)canPerformWithActivityItems:(NSArray *)activityItems
    {
        return YES;
    }

    @end

最后：

    AirDropActivityView1 *activity1 = [[AirDropActivityView1 alloc] init];

    AirDropActivityView2 *activity2 = [[AirDropActivityView2 alloc] init];

    NSArray *uiActivitys = @[activity1,activity2];

现在您可以重新排序它们。希望这有帮助。