I have a WKWebView that loads an URL which asks the user to upload an image by either taking a photo at that very moment or searching their photo library. The menu that appears is shown in English while my app & phone are in Spanish. Is there a way to change this?
Adding this item in info.plist file will solve this:
keyname : Localized resources can be mixed (CFBundleAllowMixedLocalizations)
type : Boolean
value : YES (1)
Related
I want to make "Open in.." function in my iOS application.
Is there any way to check if any app on this device is associated with file extension that i want to share?
If there are no apps on current device to open file with such an extension than UIDocumentInteractionController will not be displayed after clicking on "Open in.." button, but i want not to show this button in such case.
So the question is: how to check if any app on device can open some file with specific extension?
Update:
For example UIDocumentInteractionController has NSArray property icons.
It contains images of all aplications that can open the file with my extension. But if there are no applications it contans image of empty application.
So i can't check it using docInteractionController.icons.count == 0 for example. I am looking for other tricks.'
Thanks, in advance.
Although UIDocumentInteractionController does not offer a way to discover in advance whether there are any applications that can handle a document, -presentOpenInMenuFromRect: will return a flag indicating whether there were any applications that could open a document. This requires you to have already set up and presented the controller, which is not optimal.
There is a workaround for this, a little hacky but is functional: Before you invoke the "real" interaction controller, create a dummy one using a dummy document, and present it from the rect of the window's bounds. This guarantees that it will "appear" offscreen, so your user won't see it. At that point, you have the flag returned from -present, and you can immediately dismiss the dummy controller, and the proceed to show your UI appropriately.
On OSX, you can get a list of application bundle identifiers capable of handling a specific content type using LSCopyAllRoleHandlersForContentType. But on iOS, I don't think there is such a way.
If I find, I'll edit my answer.
Considering you are looking for other tricks, you can check if that one image in the icons array is the generic document icon.
If it is then you know that there is no app associated to handle that file type. But this approach will be OS version dependent as generic file icon may change.
From the official documentation:
To declare its support for file types, your app must include the
CFBundleDocumentTypes key in its Info.plistproperty list file. (See
“Core Foundation Keys”.) The system adds this information to a
registry that other apps can access through a document interaction
controller.
To me this indicates that the registry can only be accessed through UIDocumentInteractionController and so no, you would not be able to know in advance if there are any available apps for the file format (which would be totally in line with Apple's philosophy of not letting apps interact directly with each other).
UPDATE:
as you said the icons property contains an image even with no applications present. I checked and all the other methods and properties of the controller do not give an hint about the apps that may open the current file format.
You said in case that no app can open the specified file format there is an "image of empty application". Maybe you can extract that icon and when the array icons only has one image check if the extracted image and the icon are the same?
The Xcode docs, explain that the CFBundleURLIconFile key contains the name of the icon image file (minus the extension) to be used for displaying URLs of this type.
My remaining questions are:
What icon image should I use? Like, if the URL type is for another app, should I use that app's app icon?
What size(s)? If many sizes, how do I name them so that the sizes are used correctly?
Where is it displayed? I'm wondering for an iPhone app.
Apple does not specify this specifically, but my interpretation is that it should be an Icon representing the application which should/will open/handle URLs of this type.
On OS X, the normal approach would be to use an Icon File (.icns). I suspect you should try that on your iOS app. If that doesn't work, duplicate the naming scheme of the the standard app icon files.
Try viewing a PDF in Safari on iOS. If you have iBooks, it should show a button saying "Open in iBooks" and shows an icon next to it. This icon is the icon you would be setting.
I hope this is thorough enough to answer your questions. If not, please explain what needs clarification.
My app is registered for certain file types, images + pdf etc, following the guidelines
provided by Apple. My app does show up("open in" option) when pdf files are encountered
in mobile-safari, but it is not the case with image files. In the default "Photos"
app provided by apple, the "open in" option does not show up. Probably this is because
it is implemented without using the document interaction controller. But is there any
way to make my app appear in the UIActionSheet button, which appears at the bottom left
corner ?
I do not want to use the UIImagePickerController for choosing the saved images.
the only thing you can do is add this key-value pair to your info.plist file. iPhone saves pictures in ".JPG", so that's what you should put as the file type.
(if it doesn't appear in Photos action sheet, that means that Apple doesn't want it to appear. You'll just have to hope that some day...)
p.s. more information and detailed instructions here:
Registering the File Types Your App Supports
Xcode4 is asking for a huge number of arguments just to make this simple thing possible:
NSString *stringURL = #"twitterriffic://";
NSURL *url = [NSURL URLWithString:stringURL];
[[UIApplication sharedApplication] openURL:url];
What are all these properties for? Why an image? Must I repeat the app identifier here? What role to choose if I want anyone to be able to call this URL to open my app? And what are these Additional url type properties for?
I found no Xcode4-related tutorial how to register such an URL scheme with Xcode 4.
Open "Supporting Files" (folder) on left and click the "YourAppName-Info.plist"
Choose a row like "Bundle creator OS Type Code" and mouse over row and click the (+) symbol
This creates a new row and type "URL types"
Click the arror to left and see Item 0 and you'll rename the value in Item 0 to "URL Schemes" as shown
Then edit the field in Item 0 and type in your prototocol; I typed in "goomzee" as shown
Now if I install this app on my simulator, and open Safari and type "goomzee://" in the address bar it will launch my app.
Yup, this stuff isn't straightforward is it ?
I've outlined the steps required to register a custom URL here:
Custom URLs
But, basically the key to it is setting up a "URL Types" value in your .plist file. Here's what it looks like in XCode 5:
In this example, I've registered the MKB prefix, so now, I can use this new type of URLs in hyperlinks on webpages, and emails (if I read an email in the iPad Mail app):
If a user taps on one of these links, my iPad app will start up, and I can access the full URL string, to extract the other parameters from the URL (eg "DocumentNumber=100")
The only gotcha is that I have yet to work out how to test whether a user has an iPad app installed which can recognise a particular prefix.
If they haven't, and they tap on one of these MKB:// links on their iPad, they'll get an ugly error message:
You can continue to register your custom URL by editing your app's info.plist file (as shown in one of your previous questions). The new editor in Xcode 4 is supposed to be a convenience to make it easier to add the entries - all it is doing is making the same info.plist changes that you would do manually. If you want to use the new editor then you only need to fill in the 'Identifier' and the 'URL Schemes' boxes. You don't need an image, icon or additional URL properties.
The other properties (icon etc) are not well documented but seem to be applicable only on Mac OS X and might be used in the Finder's Get Info dialog to display what types of URL a particular app can open. For example, take a look at the Launch Services Programming Guide.
What you change in that editor is also reflected in your project's info plist file. It takes the form of ProjectName-Info.plist. Hopefully that helps.
In my app I use the ABPeoplePickerNavigationController to present an address book to the user so they can select a contact from their contacts.
I want my app to support multiple localizations (English, French) and I was expecting the ABPeoplePickerNavigationController to display the correct localised strings when I changed the phone's locale. However, this does not happen - no matter what language I change the iPhone to, the ABPeoplePickerNavigationController always displays English strings. This is strange as the Contacts application on the iPhone does change its text depending on the locale.
Does anyone know how to instruct the ABPeoplePickerNavigationController to display the correct text for the current locale?
Is your app already localized or are you just planning to add localization later? AFAIK, the built-in controls only display localized texts in those languages that your app supports.
fileName : InfoPlist.strings
view -> Utilities -> show file inspector
-> Localization "+" button click >> add language