Question

我创建并向保存的图像显示带有有效网址的NSURL *url = ...; self.interactionController = [UIDocumentInteractionController interactionControllerWithURL:url]; [self.interactionController presentOptionsMenuFromBarButtonItem:sender animated:YES];但是当我出示控制器时＃34;保存图像＆＃34;没有出现。

self.interactionController.UTI

我已验证ALAuthorizationStatus是有效的图片类型（jpeg）

__ Actual_ vs .预期___

____

注意*如果有人知道格式化这些图片的更好方法，请成为我的客人

Answer 1

为了能够选择保存到相机胶卷，应用必须具有访问照片的权限。

相对于ALAuthorizationStatusAuthorized（[ALAssetsLibrary authorizationStatus]）

＆＃34;保存图片＆＃34;显示为

ALAuthorizationStatusNotDetermined
ALAuthorizationStatusRestricted

＆＃34;保存图片＆＃34;

ALAuthorizationStatusDenied
#import <AssetsLibrary/AssetsLibrary.h> - (BOOL)canSaveToCameraRoll { ALAuthorizationStatus status = [ALAssetsLibrary authorizationStatus]; return (status == ALAuthorizationStatusAuthorized || status == ALAuthorizationStatusNotDetermined); }

您可以这样检查：

# urls.py

patterns = urlpatterns('',
    #...
    url(r'whatever/(P?<subject>[a-z-]+>)/$', 'myviews.index', ...),
    )

# myviews.py
def index(request, subject):
    # do whatever
    context = {
       # whatever else
       'subject':subject
       }
   return render(request, "whatever/index.html", context)

# whatever/index.html
<html>
   # headers etc
   <body class="something {{ subject }} etc">
     # whatever here
   </body>
</html>

UIDocumentInteractionController可以工作，但不会显示＆＃34;保存图像＆＃34;

__ Actual_ vs .预期___

1 个答案:

UIDocumentInteractionController可以工作，但不会显示＆＃34;保存图像＆＃34;

______ Actual_______ vs .____预期_____

1 个答案:

__ Actual_ vs .预期___