CODEWITHSUNDEEP
iosobjective-ciphoneios-app-extensioncustom-keyboard
Nirav
Nirav

Reputation: 157

How to add custom notification in iOS Custom Keyboard?

I have added Custom Keyboard extension inside my app and running perfect.

I have added NSNotification in my keyboard extension class like this:

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(changeKeyboardColor) name:@"keyboard_color"  object:nil];

Now I am calling this notification from my view controller class like this:

[[NSNotificationCenter defaultCenter] postNotificationName:@"keyboard_color" object:self];

Now I have added my notification selector method in my keyboard extension class like this:

-(void)changeKeyboardColor{
}

But it is not working. I am testing in simulator and I don't know How to test keyboard extension in simulator.

Thanks.

Upvotes: 4

Views: 1276

Answers (2)

kb920
kb920

Reputation: 3089

Create App Group from developer.apple.com

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Group name must be like group.XXXXX

Enable App Group if it's disable for both app id and extension app id.

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Update to existing provisioning profiles if it's look Invalid!

Go to Target and mention group name which you have created

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Go to Keyboard extension and mention same group name

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Now you done with all required settings.

In your project store value in NSUserDefaults

 let userd: NSUserDefaults = NSUserDefaults(suiteName: "group.XXXXX")!
 userd.setObject("test11", forKey: "key")
 userd.synchronize()

//Objective-C

NSUserDefaults *userd = [[NSUserDefaults alloc]initWithSuiteName:@"group.XXXXX"];
[userd setObject:@"test11" forKey:@"key"];//set the object you want to share
[userd synchronize];

For retrieving NSUserDefaults value in Extension class

 let userd: NSUserDefaults = NSUserDefaults(suiteName: "group.XXXXX")!
 print(userd.objectForKey("key"))

// Objective-C

NSUserDefaults *userd = [[NSUserDefaults alloc]initWithSuiteName:@"group.XXXXX"];
NSLog(@"%@",[userd objectForKey:@"key"]);

Happy Coding!

Upvotes: 2

Duncan C
Duncan C

Reputation: 131418

The method for a notification should take a single parameter, the triggering notification:

-(void)changeKeyboardColorNotice: (NSNotification *) theNotice
{
  NSLog(@"In %s", __PRETTY_FUNCTION__);
}

And you need to add a colon to the selector:

[[NSNotificationCenter defaultCenter] addObserver:self
  selector: @selector(changeKeyboardColorNotice:) 
  name: @"keyboard_color"  
  object: nil];

Upvotes: 0

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