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Missing return in a function expected to return 'Int'


Missing return in a function expected to return 'Int'

By : Vinay Thakur
Date : November 20 2020, 04:01 AM
wish help you to fix your issue , You need a completion as the call to firebase is asynchronous
code :
func canvasCount(completion:@escaping((_ va:Int?) -> () )) { 

    ref.child("Canvas").observeSingleEvent(of: .value, with: { (snapshot) in
           completion( snapshot.children.allObjects.count)
    }) { (error) in
        print(error.localizedDescription)
           completion(nil)
    }

}
canvasCount { (value) in 
   if let res = value {
      print(res)
   }
}
var counter = 0
canvasCount { (value) in
  if let res = value {
     self.counter =  res
     self.tableView.reloadData()
  }
} 
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
    return counter
} 


func canvasCount(completion:@escaping((_ va:Int?) -> ())) {

    ref.child("Canvas").observeSingleEvent(of: .value, with: { (snapshot) in
        completion( snapshot.children.allObjects.count)
    }) { (error) in
        print(error.localizedDescription)
        completion(nil)
    }

}


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Missing return in a function expected to return 'Bool' parse.com push notification

Missing return in a function expected to return 'Bool' parse.com push notification


By : user3046700
Date : March 29 2020, 07:55 AM
To fix this issue I'm Trying use push notification with swift&parse.com.And I'm taking this error. How can I figure out this. , The function expects a Boolean as return value.
code :
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool 
{
   // Your code.
   return true
}
Swift switch default + fallthrough: missing return in a function expected to return 'String'

Swift switch default + fallthrough: missing return in a function expected to return 'String'


By : gnolt
Date : March 29 2020, 07:55 AM
wish helps you It's not clear whether you have figured this out or not. The problem is not that you haven't got all bases covered in your switch statement. It is that not all code paths return a value. In the ApiError case, if the test fails, there is no return executed. If you put a return after this test, the code will compile.
Error - Missing return in function expected to return 'UIInterfaceOrientationMask'

Error - Missing return in function expected to return 'UIInterfaceOrientationMask'


By : user4928022
Date : March 29 2020, 07:55 AM
wish of those help class GameViewController: UIViewController { , You need to handle the
code :
UIDevice.currentDevice().userInterfaceIdiom == .Pad
override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
    if UIDevice.currentDevice().userInterfaceIdiom == .Phone {
        return [UIInterfaceOrientationMask.Portrait, UIInterfaceOrientationMask.PortraitUpsideDown]
    } else { // I guess this means your userInterfaceIdiom is equal to .Pad
        return [] // here you should return UIInterfaceOrientationMasks you may want to use for Pad devices.
    }
}
instaFilter Processor error - missing return in a function expected to return

instaFilter Processor error - missing return in a function expected to return


By : Arian Rahimi
Date : March 29 2020, 07:55 AM
This might help you When a method declaration is written with return value, you must make sure it is always return a value.
I believe your error is in the following method:
code :
func increaseContrast(image: UIImage) -> UIImage {
    var rgbaImage = RGBAImage(image: image)!

    let avgRed = 118
    let newImage2 = UIImage() //<-- Added         

    for y in 0..<rgbaImage.height {
        for x in 0..<rgbaImage.width {
            let index = y * rgbaImage.width + x
            var pixel = rgbaImage.pixels[index]
            let redDiff = Int(pixel.red) - avgRed
            if (redDiff > 0) {
                pixel.red = UInt8( max(0, min(255, avgRed + redDiff * 5)))
                rgbaImage.pixels[index] = pixel
            }
        }
        let newImage2 = rgbaImage.toUIImage()!
        return (newImage2) //<---NOTICE
    }// <---FIX
  }
Missing return in a function expected to return 'UICollectionViewCell - Swift

Missing return in a function expected to return 'UICollectionViewCell - Swift


By : noorieh
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Basically you will need to include your code inside a switch statement like this:
code :
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

    switch collectionView {
    case self.lostCollectionView:
        let lostcell: LostCollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: "Lostcell", for: indexPath) as! LostCollectionViewCell

        lostcell.set(post: posts[indexPath.row])

        //Make TextView Clickable
        lostcell.phoneLostTextView.isEditable = false;
        lostcell.phoneLostTextView.dataDetectorTypes = UIDataDetectorTypes.phoneNumber

        return lostcell

    case self.foundCollectionView:
        let foundcell: FoundCollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: "Foundcell", for: indexPath) as! FoundCollectionViewCell

        foundcell.set(postfound: postsfound[indexPath.row])

        //Make TextView Clickable
        foundcell.phoneFoundTextView.isEditable = false;
        foundcell.phoneFoundTextView.dataDetectorTypes = UIDataDetectorTypes.phoneNumber

        return foundcell

    case self.adoptionCollectionView:
        let adoptioncell: AdoptionCollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: "Adopotioncell", for: indexPath) as! AdoptionCollectionViewCell

        adoptioncell.set(postadoption: postsadoption[indexPath.row])

        //Make TextView Clickable
        adoptioncell.phoneAdoptionTextView.isEditable = false;
        adoptioncell.phoneAdoptionTextView.dataDetectorTypes = UIDataDetectorTypes.phoneNumber

        return adoptioncell

    default:
        return UICollectionViewCell()
    }
}
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