App Crash 0n MMPlayerView Version 5.1.1 and iOS 13

[mohit196]

Terminating app due to uncaught exception 'NSRangeException', reason: 'Cannot remove an observer <_NSKeyValueObservation 0x282f08450> for the key path "status" from <MMPlayerView.MMPlayerItem 0x2837a6400> because it is not registered as an observer.'

Are you aware of it?

Thanks

[vivek1608]

same issue happen in ios 13 in my project also but not got any solution

[vivek1608]

@mohit196 Have u got any solution ?

[mohit196]

not yet...I will post here the second I found anything.

[AsadWazir]

same issue @mohit196 have you got any solution.
'NSRangeException', reason: 'Cannot remove an observer < 0x7ff9f6547250> for the key path "status" from <MMPlayerView.MMPlayerLayer 0x7ff9f674ee00> because it is not registered as an observer.'

[DebugApe]

same issue @mohit196 have you got any solution.
'NSRangeException', reason: 'Cannot remove an observer < 0x7ff9f6547250> for the key path "status" from <MMPlayerView.MMPlayerLayer 0x7ff9f674ee00> because it is not registered as an observer.'

[Millman Yang]

Hi guys, I installed Xcode 11 and in my case , crashed in videoRect observation but status fine.
I will check the issue

[DebugApe]

I creat A New ViewController and Push to NavigationController,I use the MMPlayerView in this New Viewcontroller .when I pop to the last Viewcontroller , crashed happened

[Millman Yang]

I know where crashed, but in ios12 work fine so let me think about how to fix it

[DebugApe]

New Crash,MMPlayerView.MMPlayerLayer was deallocated while key value observers were still registered with it. Current observation info: <NSKeyValueObservationInfo 0x283d363a0> (
<NSKeyValueObservance 0x2833285d0: Observer: 0x2833291d0, Key path: videoRect, Options: <New: YES, Old: YES, Prior: NO> Context: 0x0, Property: 0x2833921c0>
)

[mohit196]

In my case app is crashing when one video ends and I am trying to play the next video...I am initiating next video call from the end status with a delay of 0.25 sec if this helps.

[techhirasky]

Getting Crash when pop to controller: - Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'An instance 0x7f8bc259f510 of class MMPlayerView.MMPlayerLayer was deallocated while key value observers were still registered with it. Current observation info: <NSKeyValueObservationInfo 0x600003060900> (
<NSKeyValueObservance 0x600003e7d5f0: Observer: 0x600003e351d0, Key path: videoRect, Options: <New: YES, Old: YES, Prior: NO> Context: 0x0, Property: 0x600003e551d0>

[techhirasky]

I know where crashed, but in ios12 work fine so let me think about how to fix it

Are you going to fix it soon?

[Millman Yang]

Give me some times, I need to check its not a bug in ios 13

[AsadWazir]

@MillmanY any luck.?

[Ramy Rizkalla]

The problem is with this line: self.removeObserver(observer, forKeyPath: "status")
Just remove it. observer.invalidate() is enough to unregister the observer. It should work fine.

[Millman Yang]

Crash on this

 videoRectObservation = self.observe(\.videoRect, options: [.new, .old]) { [weak self] (player, change) in
        if change.newValue != change.oldValue {
            self?.updateCoverConstraint()
        }
 }

I fix to use original kvo registered function, so I think is a bug on ios

    self.addObserver(self, forKeyPath: "videoRect", options: [.new, .old], context: nil)

override public func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
    
    switch keyPath {
    case "videoRect", "frame", "bounds":
        let new = change?[.newKey] as? CGRect ?? .zero
        let old = change?[.oldKey] as? CGRect ?? .zero
        if new != old {
            self.updateCoverConstraint()
        }
        
    case "muted":
        let new = change?[.newKey] as? Bool ?? false
        let old = change?[.oldKey] as? Bool ?? false
        if new != old {
            self.coverView?.player?(isMuted: new)
        }
    case "rate":
        let new = change?[.newKey] as? Float ?? 1.0
        let status = self.currentPlayStatus
        switch status {
        case .playing, .pause, .ready:
            self.currentPlayStatus = (new == 0.0) ? .pause : .playing
        case .end:
            let total = self.player?.currentItem?.duration.seconds ?? 0.0
            let current = self.player?.currentItem?.currentTime().seconds ?? 0.0
            if current < total {
                self.currentPlayStatus = (new == 0.0) ? .pause : .playing
            }
        default: break
        }

    default:
        super.observeValue(forKeyPath: keyPath, of: object, change: change, context: context)
    }
}

Fix on pod 5.1.2

[Ramnathtamiselvam]

Terminating app due to uncaught exception 'NSRangeException', reason: 'Cannot remove an observer <_NSKeyValueObservation 0x282f08450> for the key path "status" from <MMPlayerView.MMPlayerItem 0x2837a6400> because it is not registered as an observer.'

Are you aware of it?

Thanks

Terminating app due to uncaught exception 'NSRangeException', reason: 'Cannot remove an observer <_NSKeyValueObservation 0x280d74bb0> for the key path "videoRect" from <MMPlayerView.MMPlayerLayer 0x10d91860

Same issue Occurs in Xcode 11.2

[Muhammed Salih T]

Terminating app due to uncaught exception 'NSRangeException', reason: 'Cannot remove an observer <AudioPlayer 0x281f5b9c0> for the key path "status" from <IndexedPlayerItem 0x28267f880> because it is not registered as an observer.

why happend this when clipping in just audio package flutter