My if statement is not displaying what I want it to. Can anyone help? I want to display some text in a UILabel that will be decided from weather the random number is below or above 50.
Here is the code. The IF Statement is at the end.
import UIKit
import AVFoundation
class ViewController: UIViewController {
var pianoSound = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("two_tone_nav", ofType: "mp3")!)
var audioPlayer = AVAudioPlayer()
override func viewDidLoad() {
super.viewDidLoad()
audioPlayer = AVAudioPlayer(contentsOfURL: pianoSound, error: nil)
audioPlayer.prepareToPlay()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBOutlet weak var Number: UILabel!
#IBOutlet weak var BA50: UILabel!
#IBAction func Generate(sender: AnyObject) {
audioPlayer.play()
var Generate = Int(arc4random_uniform(100))
Number.text = String(Generate)
func AboveBelow50(){
if Generate>=50 {
self.BA50.text = "No"
}
else {
self.BA50.text = "Yes"
}
}
}
}
Put your function:
func AboveBelow50(Generate: Int){
if Generate>=50 {
self.BA50.text = "No"
} else {
self.BA50.text = "Yes"
}
Out side your IBAction, and change it this way.
And call inside your IBAction:
var Generate = Int(arc4random_uniform(100))
AboveBelow50(Generate)
Related
I do have error Thread1: EXC_BAD_INSTRUCTION. Been trying very hard on this. Any helpful personnel out there?
import UIKit
import AVFoundation
class PlaySoundsViewController: UIViewController {
var filePathUrl: NSURL!
var audioPlayer: AVAudioPlayer?
var receivedAudio:RecordedAudio!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
audioPlayer = try! AVAudioPlayer(contentsOfURL: receivedAudio.filePathUrl)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func playFastAudio(sender: UIButton) {
audioPlayer!.stop()
audioPlayer!.rate = 1.5
audioPlayer!.currentTime = 0.0
audioPlayer!.play()
}
#IBAction func playSlowAudio(sender: UIButton) {
// play audio slow
audioPlayer!.stop()
audioPlayer!.rate = 0.5
audioPlayer!.currentTime = 0.0
audioPlayer!.play()
}
#IBAction func StopButtonSound(sender: UIButton) {
audioPlayer!.stop()
}
}
Lately I have run into an issue while using the beta version of Xcode (7.0).
I am not able to hear the sound that I play through this code:
(It is a ViewController from the Main.storyboard, there is a button connected to buttonTouchUpInside())
import UIKit
import AVFoundation
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func setupAudioPlayerWithFile(file:NSString, type:NSString) -> AVAudioPlayer {
let path = NSBundle.mainBundle().pathForResource(file as String, ofType: type as String)
let url = NSURL.fileURLWithPath(path!)
var audioPlayer:AVAudioPlayer?
do {
try audioPlayer = AVAudioPlayer(contentsOfURL: url)
} catch {
print("NO AUDIO PLAYER")
}
return audioPlayer!
}
#IBAction func buttonTouchUpInside(sender: AnyObject) {
let backMusic = setupAudioPlayerWithFile("sound", type: "wav")
backMusic.play()
}
}
You just have to move the declaration of backMusic out of your IBAction:
Try like this:
class ViewController: UIViewController {
var backMusic: AVAudioPlayer!
// ...
#IBAction func buttonTouchUpInside(sender: AnyObject) {
backMusic = setupAudioPlayerWithFile("sound", type: "wav")
backMusic.play()
}
}
I am trying to record Audio, and pass the recorded audio, to the next view controller. Here is my code for recording Audio
class RecordSoundsViewController: UIViewController, AVAudioRecorderDelegate {
#IBOutlet weak var recording: UILabel!
#IBOutlet weak var recordButton: UIButton!
#IBOutlet weak var stopButton: UIButton!
var audioRecorder:AVAudioRecorder!
var recordedAudio : RecordedAudio!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func viewWillAppear(animated: Bool) {
// enables record button
// hides the stop button
recordButton.enabled = true
stopButton.hidden = true
}
#IBAction func recordAudio(sender: UIButton) {
//Shows recording label
recording.hidden = false
//diabling record button
recordButton.enabled = false
stopButton.hidden = false
//Filepath Creation
let dirPath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0] as! String
let currentDateTime = NSDate()
let formatter = NSDateFormatter()
formatter.dateFormat = "ddMMyyyy-HHmmss"
let recordingName = formatter.stringFromDate(currentDateTime)+".wav"
let pathArray = [dirPath, recordingName]
let filePath = NSURL.fileURLWithPathComponents(pathArray)
println(filePath)
// Recording Session
var session = AVAudioSession.sharedInstance()
session.setCategory(AVAudioSessionCategoryPlayAndRecord, error: nil)
audioRecorder = AVAudioRecorder(URL: filePath, settings: nil, error: nil)
audioRecorder.delegate = self
audioRecorder.meteringEnabled = true
audioRecorder.prepareToRecord()
audioRecorder.record()
}
func audioRecorderDidFinishRecording(recorder: AVAudioRecorder!, successfully flag: Bool) {
// ToDo create recorded audio file
if(flag)
{ recordedAudio = RecordedAudio()
recordedAudio.filepathURL = recorder.url
recordedAudio.title = recorder.url.lastPathComponent
// ToDo Perform segue
self.performSegueWithIdentifier("stopRecording", sender: recordedAudio)
}
else {
println("Recording was unsuccessfull")
stopButton.hidden = true
recordButton.enabled = true
}
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if(segue == "stopRecording") {
let PlaySoundsVC:PlaySoundsViewController = segue.destinationViewController as! PlaySoundsViewController
let data = sender as! RecordedAudio
PlaySoundsVC.receivedAudio = data
}
}
#IBAction func stopAudio(sender: UIButton) {
// Hides recording
recording.hidden = true
audioRecorder.stop()
var audioSession = AVAudioSession.sharedInstance()
audioSession.setActive(false, error: nil)
}
}
My Model class is ,
import Foundation
class RecordedAudio : NSObject{
var filepathURL :NSURL!
var title : String!
}
Here is how My second viewcontroller catch the data and uses it,
class PlaySoundsViewController: UIViewController {
var audioPlayer: AVAudioPlayer!
var receivedAudio: RecordedAudio!
func rateplay (rtt : Float32) {
audioPlayer.stop()
audioPlayer.rate = rtt
audioPlayer.currentTime = 0.0
audioPlayer.play()
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
// if var filePath = NSBundle.mainBundle().pathForResource("movie_quote", ofType: "mp3")
// {
// // if path is there for mp3
// let filepathurl = NSURL.fileURLWithPath(filePath)
//
// // println(receivedAudio.title)
//
// }
// else {
// println("Path is empty")
//
// }
audioPlayer = AVAudioPlayer(contentsOfURL: receivedAudio.filepathURL, error: nil)
audioPlayer.enableRate = true
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func playSlow(sender: UIButton) {
// play sloooowllyyyyy
audioPlayer.stop()
audioPlayer.rate = 0.5
audioPlayer.currentTime = 0.0
audioPlayer.play()
}
#IBAction func playFast(sender: UIButton) {
rateplay(1.5)
}
#IBAction func stopAudio(sender: UIButton) {
audioPlayer.stop()
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
}
Untill I add the below code,
audioPlayer = AVAudioPlayer(contentsOfURL: receivedAudio.filepathURL, error: nil)
audioPlayer.enableRate = true
I was able to move to the second scene, which means, the audio is successfully recorded. But as soon as i access the data like "receivedAudio.filepathURL" I am getting the error,
fatal error: unexpectedly found nil while unwrapping an Optional value
In the prepareForSegue function of the RecordSoundsViewController you need to write segue.identifier == "stopRecording" as the condition.
Currently you have segue == "stopRecording".
Happy Coding!
I need to change my play button to a pause button and vice versa when tapped on. I am still new to this, so I don't know how to identify buttons in the .swift file or how to change icons programmatically in the .swift file.
import UIKit
import AVFoundation
class ViewController: UIViewController {
var player = AVAudioPlayer()
var toggleState = 1
#IBAction func playPauseButton(sender: AnyObject) {
if toggleState == 1 {
player.play()
toggleState = 2
} else {
player.pause()
toggleState = 1
}
}
#IBAction func stopButton(sender: AnyObject) {
player.stop()
player.currentTime = 0
}
#IBAction func sliderChanged(sender: AnyObject) {
player.volume = sliderValue.value
}
#IBOutlet weak var sliderValue: UISlider!
override func viewDidLoad() {
super.viewDidLoad()
var audioPath = NSBundle.mainBundle().pathForResource("StarWars", ofType: "mp3")!
var error: NSError?
player = AVAudioPlayer(contentsOfURL: NSURL(string: audioPath), error: &error)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
You can change the image of the button depending on the state:
#IBAction func playPauseButton(sender: AnyObject) {
var playBtn = sender as UIButton
if toggleState == 1 {
player.play()
toggleState = 2
playBtn.setImage(UIImage(named:"pause.png"),forState:UIControlState.Normal)
} else {
player.pause()
toggleState = 1
playBtn.setImage(UIImage(named:"play.png"),forState:UIControlState.Normal)
}
}
The sender object passed to the playPauseButton is your UIButton which calls the method. Because it is sent as an object of type AnyObject we cast it to a UIButton. If you do not want to cast it, and are sure only a UIButton will call this method you can simply replace AnyObject with UIButton in the function parameter.
I have managed to get this to print the Relative Altitude data to the log however what I would like to do is get it to print to a designated label.Any help would be appreciated.
import UIKit
import CoreMotion
class ViewController: UIViewController {
#IBOutlet weak var altitudeLabel: UILabel!
let altimeter = CMAltimeter()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func start(sender: AnyObject) {
if CMAltimeter.isRelativeAltitudeAvailable() {
altimeter.startRelativeAltitudeUpdatesToQueue(NSOperationQueue.mainQueue(), withHandler: { data, error in
if (error == nil) {
println("relative Altitude: \(data.relativeAltitude)")
println("Pressure: \(data.pressure)")
}
})
}
}
}
You can use the following line to assign a float value with 2 decimal places to your UILabel outlet:
self.altitudeLabel.text = String(format: "%0.2f", data.relativeAltitude)
I ended up using this and it will due for now:
var myIntValue:Int = Int(data.relativeAltitude)
println ("My value is \(myIntValue)")
self.altitudeLabel.text = ("\(myIntValue) M")