I'm trying to end a long press gesture without lifting my finger from the screen. Is that possible in swift?
I'm making an app that lets you record video. The video recording starts when i press down on a button and ends when I lift my finger from the screen. That part works perfectly. What I also want is for the long press gesture to end after 30 seconds if my finger is still pressed on the button. I actually got it to stop recording but the problem is that the long press gesture doesn't actually end when the recording stops.
Here's some of my code:
func stop() {
let seconds : Int64 = 5
let preferredTimeScale : Int32 = 1
let maxDuration : CMTime = CMTimeMake(seconds, preferredTimeScale)
movieOutput.maxRecordedDuration = maxDuration
if movieOutput.recordedDuration == movieOutput.maxRecordedDuration {
movieOutput.stopRecording()
}
}
func longTap(_ sender: UILongPressGestureRecognizer){
print("Long tap")
stop()
if sender.state == .ended {
print("end end")
movieOutput.stopRecording()
}
else if sender.state == .began {
print("begin")
captureSession.startRunning()
startRecording()
}
}
You could try using a timer to do do the canceling of the gesture:
class myController:UIViewController {
var timer:Timer! = nil
var lpr:UILongPressGestureRecognizer! = nil
override func viewDidLoad() {
super.viewDidLoad()
lpr = UILongPressGestureRecognizer()
lpr.minimumPressDuration = 0.5
lpr.numberOfTouchesRequired = 1
// any other gesture setup
lpr.addTarget(self, action: #selector(doTouchActions))
self.view.addGestureRecognizer(lpr)
}
func createTimer() {
if timer == nil {
timer = Timer.scheduledTimer(timeInterval: 30, target: self, selector: #selector(cancelTrouchFromTimer), userInfo: nil, repeats: false)
}
}
func cancelTimer() {
if timer != nil {
timer.invalidate()
timer = nil
}
}
func cancelTrouchFromTimer() {
lpr.isEnabled = false
//do all the things
lpr.isEnabled = true
}
func doTouchActions(_ sender: UILongPressGestureRecognizer) {
if sender.state == .began {
createTimer()
}
if sender.state == .ended {// same for other states .failed .cancelled {
cancelTimer()
}
}
// cancel timer for all cases where the view could go away, like in deInit
func deinit {
cancelTimer()
}
}
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