Popping Sound

All I can say is that Drag & Drop works for me. Depending on the file type, it opens the Photos or Files app, respectively. It does sound like there is something wrong with your installation.

If you mark a notification as Critical Alert, it will override all Focus, Volume, and Mute settings user may have set and will be break through them all and be audible at the loudness level you set in the notification. If you don't want this to happen, you should not be using Critical Alerts. Also, your use case may not be eligible to receive the special entitlement to allow this after all. What you should be using instead is the UNNotificationInterruptionLevel.active setting, where the notification will light up the screen and can play a sound if not muted, and will respect the systemwide notification settings and focus modes like Sleep, Work, etc. where the app has been set to be silenced in those modes. This way the user can sleep through system maintenance and still get their news alerts by freely configuring your app into their focus schedules. Ref: Focus on iPhone Argun Tekant /  DTS Engineer / Core Technologies

SO, let me actually jump back to what you said here: However In this App that we are confirming that when the iPhone goes into sleep mode, self.activeTimerProc() is not called at 10-second intervals, What you're trying to do here is exactly the kind of behavior push provider is trying to discourage. That is, on a well designed network, there's no reason why your push provider couldn't: Open a connection to the server and perform initial setup. Leave the connection open without sending or receiving any data. An arbitrarily long period of time later, the server sends a call notification and the actual call process starts. Now, many voip apps do not actually work that way. In my experience that, that's generally caused by one of both of these two factors: The server implementation is being treated as a fixed constraint which cannot be modified and that (generally, VERY old) implementation include requirements which directly prevent the approach above. The underlying WiFi network infrastructure is very poor/broke

Thank you very much for taking time to look into it. I tried to create a post on an issue our team is having with Wallet popping up when our application using HCE is in foreground. The issue seemed to be related to the category I chose: App & system services -> Wallet. No matter the text I tried to enter each time I got message about sensitive language. Eventually I tried to change the category to another and the post was accepted and copy-pasted post content, strangely when I checked it's category today it's in App & system services -> Wallet, and it starts with warning about sensitive language....

Hello @himanshujnaidu, I can't tell for sure but it sounds like the matrix you show above is different than how you are interpreting it. Camera Transform = simd_float4x4( [ [0.98446155, -0.030119859, 0.172998, 0.0], // column 0 [0.023979114, 0.9990097, 0.037477385, 0.0], // column 1 [-0.17395553, -0.032746706, 0.98420894, 0.0], // column 2 [0.024039675, -0.037087332, -0.22780673, 0.99999994] // column 3 ]) First up, keep in mind that float4x4's init method is column major. So each 'row' in that code is a column in the matrix. So in this case the position of the camera relative to the origin is 0.024039675, -0.037087332, -0.22780673 Second, the upper-left part of the float4x4 matrix is a float3x3 and represents the orientation. The eulerAngles property on the frame.camera re-interprets this 3x3 matrix as the familiar Euler angles. You can find the orientation of the camera relative to the frame via let rotation = frame.camera.eulerAngles rotation.y will be zero when facing north, 90° when facing east.

I don‘t know it myself. This popped up when I tried to open the Project File

I haven really done av in objc, but im guessing you can try obtaining a delegate through the sound framework and I think its subclass the events a delegate is someone who is like a broker for resources in a class or object