I'm a beginner at Swift.
I'm trying to make an app that makes sound, but I'm stuck in the error below, so I can't proceed.
Argument labels (contentsOF, fileTypeHint) do not match any available overloads
I would appreciate it if you could tell me how to solve it.
The code is as follows:
//
// ViewController.swift
// MyMusic
//
// Created by name on November 5, 2016.
// Copyright © 2016 mycompany. All rights reserved.
//
import UIKit
import AVFoundation
classViewController:UIViewController {
override func viewDidLoad(){
super.viewDidLoad()
// Do any additional setup after loading the view, typically from anib.
}
override funcdidReceiveMemoryWarning(){
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// cymbal sound source file
var cymbalPath=Bundle.main.bundleURL.appendingPathComponent("cymbal.mp3")
// Create a player instance for cymbals
varcymbalPlayer=AVAudioPlayer()
@ IBAction function(_sender:Any){
do{
// Specify the name of the sound source file for cymbals
cymbalPlayer=try AVAudioPlayer(contetsOF:cymbalPath, fileTypeHint:nil)
cymbalPlayer.play()
} catch{
print("A cymbal encountered an error.")
}
}
}
Basically, it's a simple spelling mistake.Make sure you know what you really want to do, and then check with official references.
init(contentsOf:URL, fileTypeHint:String?)
Initializes and returns an audio player using the specified URL and
file type hint.
contentsOf:, not contentsOf:.(Note case differences.)
If possible, why don't you take this opportunity to change the writing style you don't recommend?
class ViewController:UIViewController {
//...
// cymbal sound source file
// Use `url(forResource: withExtension:)` instead of creating a path from bundleURL when accessing resource files in Bundle
// It is often better not to use the "Crash My App" operator (`!`), but here I intentionally use it to notify you of a crash if the app is not configured properly.
var cymbalPath=Bundle.main.url (forResource: "cymbal", withExtension: "mp3")!
// Declare player properties for cymbals
//`= The declaration AVAudioPlayer()` has simultaneously generated an unused instance.
varcymbalPlayer —AVAudioPlayer?
@ IBAction function(_sender:Any){
do{
// Create a player instance for cymbals
// ContentsOf instead of contentsOF
// If you don't want to give a hint, you should use `init(contentsOf:)`
cymbalPlayer=try AVAudioPlayer(contentsOf:cymbalPath)
cymbalPlayer ?.play()
} catch{
print("A cymbal encountered an error.")
}
}
}
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