In my new project, I am making sure that users do not have to go to the login screen every time they open the app by using the following code:
// this means that there is a user logged in... take them to the main view.
if let x = FIRAuth.auth()?.currentUser?.uid {
print("The current user is: \(x)")
// first param is storyboard name
self.setTheRootViewController("Main", identifier: "GroupChatsView")
}
// take them to the login view controller
else {
self.setTheRootViewController("Main", identifier: "LoginView")
}
I have not created any users yet, so I would expect this code to take me to the login view every time. But, For some odd reason, when I print out the current user's unique id, it is my own unique id from a previous project. I am not sure what to do at this point. Also, everything in my GoogleService-Info.plist matches up with my new project.
When I logout of my other app in the iOS simulator, the code functions as expected.
Are there any easy workarounds for this? Thanks.
In your simulator clean and reset settings ! It does the trick.
Related
I'm an XCode noob and I've looked all over for the answer. This is my first time building anything in XCode and I've created a login window using Firebase in ViewController.swift. Once the user is logged in, I want them to go to another screen that is using MapKit etc. How do I automatically link the login window success to the second page?
I've created a new cocoa touch class file as MapViewController.swift - do I just call the map function at the end of the login function or is there a more simple way to do it with the storyboard?
Sorry for the stupid question
after you check that the user enters the right credentials set function to call the new view controller
func transition() {
let mapViewController:MapViewController = MapViewController()
self.presentViewController(mapViewController, animated: true, completion: nil)
}
then call it
transition()
I am trying to discover contacts for a user with the code below (the code is in an implementation of a UITableViewController. I put breakpoints in both code blocks, and I determined that the the userIdentityDiscoveredBlock is not called while the completionBlock is called. This indicates that the operation is being run as expected, it just isn't finding any contacts.
I am running on the simulator, but I verified that the simulator has synced all my iCloud contacts (opening the Contacts app on the simulator shows all my contacts).
override func viewDidLoad() {
super.viewDidLoad()
let op = CKDiscoverAllUserIdentitiesOperation()
op.discoverAllUserIdentitiesCompletionBlock = { error -> Void in
// reload my data table
}
op.userIdentityDiscoveredBlock = { user -> Void in
if user.hasiCloudAccount {
self.iCloudUsers.append(user)
} else {
self.nonICloudUsers.append(user)
}
}
CKContainer.default().add(op)
}
So my question is this - Is there something else that has to be done in order to discover contacts? Is this a simulator issue?
I searched the documentation and other questions but I can't seem to find information on this given the operation is new to iOS 10.
There's quite a bit that must be done before CKDiscoverAllUserIdentitiesOperation will return any results.
First, each user of your app must grant permission to be looked up by email. Your app makes this request using CKContainer requestApplicationPermission.
Each user of your app must also be logged into an iCloud account. iCloud Drive must also be enabled by the user.
And lastly, for CKDiscoverAllUserIdentitiesOperation to return any users, the person must have contacts with email addresses that match other users that completed all of the previous steps.
I have the exact same issue as "Paul" posted here: Can not export audiofiles via "open in:" from Voice Memos App - no answers have yet been posted on this topic.
Essentially what I'm trying to do is simple:
After having recorded a Voice Memo on iOS, I select "Open With" and from the popup that is shown I want to be able to select my app.
I've tried everything I can think of and experimented with LSItemContentTypes without success.
Unfortunately I don't have enough reputation to comment on the existing post above, and I'm getting quite desperate for a solution to this. Any help is hugely appreciated, even just to know whether it's doable or not.
Thanks!
After some experimentation and much guidance from this blog post ( http://www.theappguruz.com/blog/share-extension-in-ios-8 ), it appears that it is possible to do this using a combination of app extensions (specifically an Action Extension) and app groups. I'll describe the first part which will enable you to get your recording from Voice Memos to your app extension. The second part -- getting the recording from the app extension to the containing app (your "main" app) -- can be done using app groups; please consult the blog post above for how to do this.
Create a new target within your project for the app extension, by selecting File > New > Target... from Xcode's menu. In the dialog box that prompts you to "Choose a template for your new target:" choose the "Action Extension" and click "Next".
CAUTION: Do not choose the "Share Extension" as is done in the blog post example above. That approach is more appropriate for sharing with another user or posting to a website.
Fill in the "Product Name:" for your Action Extension, e.g., MyActionExtension. Also, for "Action Type:" I selected "Presents User Interface" because this is the way Dropbox appears to do it. Selecting this option adds a view controller (ActionViewController) and storyboard (Maininterface.storyboard) to your app extension. The view controller is a good place to provide feedback to the user and to give the user an opportunity to rename the audio file before exporting it to your app.
Click "Finish." You will be prompted to "Activate “MyActionExtension” scheme?". Click "Activate" and this new scheme will be made active. Building it will build both the action extension and the containing app.
Click the disclosure triangle for the "MyActionExtension" folder in the Project Navigator (Cmd-0) to reveal the newly-created storyboard, ActionViewController source file(s), and Info.plist. You will need to customize these files for your needs. But for now ...
Build and run the scheme you just created. You will be prompted to "Choose an app to run:". Select "Voice Memos" from the list and click "Run". (You will probably need a physical device for this; I don't think the simulator has Voice Memos on it.) This will build and deploy your action extension (and its containing app) to your device. and then proceed to launch "Voice Memos" on your device. If you now make a recording with "Voice Memos" and then attempt to share it, you should see your action extension (with a blank icon) in the bottom row. If you don't see it there, tap on the "More" button in that row and set the switch for your action extension to "On". Tapping on your action extension will just bring up an empty view with a "Done" button. The template code looks for an image file, and finding none does nothing. We'll fix this in the next step.
Edit ActionViewController.swift to make the following changes:
6a. Add import statements for AVFoundation and AVKit near the top of the file:
// the next two imports are only necessary because (for our sample code)
// we have chosen to present and play the audio in our app extension.
// if all we are going to be doing is handing the audio file off to the
// containing app (the usual scenario), we won't need these two frameworks
// in our app extension.
import AVFoundation
import AVKit
6b. Replace the entirety of override func viewDidLoad() {...} with the following:
override func viewDidLoad() {
super.viewDidLoad()
// Get the item[s] we're handling from the extension context.
// For example, look for an image and place it into an image view.
// Replace this with something appropriate for the type[s] your extension supports.
print("self.extensionContext!.inputItems = (self.extensionContext!.inputItems)")
var audioFound :Bool = false
for inputItem: AnyObject in self.extensionContext!.inputItems {
let extensionItem = inputItem as! NSExtensionItem
for attachment: AnyObject in extensionItem.attachments! {
print("attachment = \(attachment)")
let itemProvider = attachment as! NSItemProvider
if itemProvider.hasItemConformingToTypeIdentifier(kUTTypeMPEG4Audio as String)
//|| itemProvider.hasItemConformingToTypeIdentifier(kUTTypeMP3 as String)
// the audio format(s) we expect to receive and that we can handle
{
itemProvider.loadItemForTypeIdentifier(kUTTypeMPEG4Audio as String,
options: nil, completionHandler: { (audioURL, error) in
NSOperationQueue.mainQueue().addOperationWithBlock {
if let audioURL = audioURL as? NSURL {
// in our sample code we just present and play the audio in our app extension
let theAVPlayer :AVPlayer = AVPlayer(URL: audioURL)
let theAVPlayerViewController :AVPlayerViewController = AVPlayerViewController()
theAVPlayerViewController.player = theAVPlayer
self.presentViewController(theAVPlayerViewController, animated: true) {
theAVPlayerViewController.player!.play()
}
}
}
})
audioFound = true
break
}
}
if (audioFound) {
break // we only handle one audio recording at a time, so stop looking for more
}
}
}
6c. Build and run as in the previous step. This time, tapping on your action extension will bring up the same view controller as before but now overlaid with the AVPlayerViewController instance containing and playing your audio recording. Also, the two print() statements I've inserted in the code should give output that looks something like the following:
self.extensionContext!.inputItems = [<NSExtensionItem: 0x127d54790> - userInfo: {
NSExtensionItemAttachmentsKey = (
"<NSItemProvider: 0x127d533c0> {types = (\n \"public.file-url\",\n \"com.apple.m4a-audio\"\n)}"
);
}]
attachment = <NSItemProvider: 0x127d533c0> {types = (
"public.file-url",
"com.apple.m4a-audio"
)}
Make the following changes to the action extension's Info.plist file:
7a. The Bundle display name defaults to whatever name you gave your action extension (MyActionExtension in this example). You might wish to change this to Save to MyApp. (By way of comparison, Dropbox uses Save to Dropbox.)
7b. Insert a line for the key CFBundleIconFile and set it to Type String (2nd column), and set its value to MyActionIcon or some such. You will then need to provide the corresponding 5 icon files. In our example, these would be: MyActionIcon.png, MyActionIcon#2x.png, MyActionIcon#3x.png, MyActionIcon~ipad.png, and MyActionIcon#2x~ipad.png. (These icons should be 60x60 points for iphone and 76x76 points for ipad. Only the alpha channel is used to determine which pixels are gray, the RGB channels are ignored.) Add these icon files to your app extension's bundle, NOT the containing app's bundle.
7c. At some point you will need to set the value for the key NSExtension > NSExtensionAttributes > NSExtensionActivationRule to something other than TRUEPREDICATE. If you want your action extension to only be activated for audio files, and not for video files, pdf files, etc., this is where you would specify such a predicate.
The above takes care of getting the audio recording from Voice Memos to your app extension. Below is an outline of how to get the audio recording from the app extension to the containing app. (I'll flesh it out later, time permitting.) This blog post ( http://www.theappguruz.com/blog/ios8-app-groups ) might also be useful.
Set up your app to use App Groups. Open the Project Navigator (Cmd-0) and click on the first line to show your project and targets. Select the target for your app, click on the "Capabilities" tab, look for the App Groups capability, and set its switch to "On". Once the various entitlements have been added, click on the "+" sign to add your App Group, giving it a name like group.com.mycompany.myapp.sharedcontainer. (It must begin with group. and should probably use some form of reverse-DNS naming.)
Repeat the above for your app extension's target, giving it the same name as above (group.com.mycompany.myapp.sharedcontainer).
Now you can write the url of the audio recording to the app group's shared container from the app extension side. In ActionViewController.swift, replace the code fragment that instantiates and presents the AVPlayerViewController with the following:
let sharedContainerDefaults = NSUserDefaults.init(suiteName:
"group.com.mycompany.myapp.sharedcontainer") // must match the name chosen above
sharedContainerDefaults?.setURL(audioURL, forKey: "SharedAudioURLKey")
sharedContainerDefaults?.synchronize()
Similarly, you can read the url of the audio recording from the containing app's side using something like this:
let sharedContainerDefaults = NSUserDefaults.init(suiteName:
"group.com.mycompany.myapp.sharedcontainer") // must match the name chosen above
let audioURL :NSURL? = sharedContainerDefaults?.URLForKey("SharedAudioURLKey")
From here, you can copy the audio file into your app's sandbox, e.g., your app's Documents directory or your app's NSTemporaryDiretory(). Read this blog post ( http://www.atomicbird.com/blog/sharing-with-app-extensions ) for ideas on how to do this in a coordinated fashion using NSFileCoordinator.
References:
Creating an App Extension
Sharing Data with Your Containing App
I am creating a new feature in one of my apps to show a "What's New" page. I have this all working as expected and it compares the last version (stored) to the current version, then updates the current version once the feature list is shown.
This all works great and as expected. The issue I have now is determining if a user already has the app installed.
Case 1) If the user is a completely new user and it is the first time they have downloaded the app, then the new feature list should not be shown.
Case 2) If they already had the app installed and are updating their app to a new version, then we need to show the new feature list.
The part I need help with is Case 2. How can you determine if the app is already installed by the user, without having to release a minor update just to set a currentInstalledVersion variable beforehand?
if(currentInstalledVersion)
{
if(currentInstalledVersion < actualCurrentVersion)
{
// user upgraded
}
}
else
{
if(someOtherDataSavedOnDiskExists)
{
// user had the app with a version before you implemented currentInstalledVersion and is updating
}
else
{
// fresh install
}
}
Update based on below comment
Okay in that case, there is no built-in mechanism to help you with this. Until you implement a way yourself (with this flag), you can't check. However, if you have any kind of other flags or data you've written to NSUserDefaults for instance, you can check that immediately on startup to see if those values are set which would tell you it is an existing user that just installed the app (only check the other flags if currentInstalledVersion is not set). If you have not written any data to disk or to NSUserDefaults then you are out of luck for your initial release of this feature.
I updated the code above to reflect this.
You could use NSUserDefault and set a bool to check if it's a new user.
ex:
if(![[NSUserDefaults standardUserDefaults] boolForKey:#"user"]){
// it's a new user
[[NSUserDefaults standardUserDefaults] setBool:YES ForKey:#"user"];
}
The boolForKey: method would return NO if the default was not set.
I wanna know which app calls the share extension to share image to my app(its bundleId or appName). But I found no way to do it. There is none information about the source app in NSExtensionContext. I would greatly appreciate any help.
To achieve what you're asking:
#ifdef HIDE_POST_DIALOG
- ( void ) willMoveToParentViewController: ( UIViewController * ) parent
{
// This is called at the point where the Post dialog is about to be shown.
NSString * hostBundleID = [parent valueForKey:(#"_hostBundleID")];
NSLog( #"**** parent bundle id is %#" ,hostBundleID);
}
#endif
You don't get to find out what app is hosting your extension. That's not part of the extension system. You get to find out what kind of data the app is passing you and, with action extensions, you get to return some data. But you don't get to find out who you're dealing with, only what data is going back and forth.
Your bundle ID is usually com.yourcompany/yourname.yourappname
If you don't know what Xcode has for your company name, create a new project and the screen that prompts you for your app name will have your company name.
Also you can do this,
In Xcode, select your project, then your target (you should have only one) and then the 'Info' tab. You should be able to see the bundle identifier there.
The answer to this question can be found here:
How to get bundle ID?