I have some speech in my app.
The iPhones buttons only affect the volume while the phone is speaking. As soon as the sentence finishes, the buttons affect the 'ringer' volume.
But I would like for the buttons to always affect 'volume' when my app is open. How can I achieve this?
Related
I am trying to detect when a user presses the volume up/down button on an iOS device. I am not trying to change the system volume in my application, but instead the volume of a speaker that the user is connected to, so I don't need to modify the system volume (which I understand we are not supposed to do post iOS 11.4).
The current notification in AVSession only fires when there is a change in the volume and not every time the user hits one of those two buttons, so the notification does not fire when the volume is maxed out and the user hits the volume up button.
I want to do some action in my app when the user presses the power button two times while my app is already in background/closed. How can I trigger the action of power button for it inside my app? or if I can add any observer in my app for such action? Is it possible to get this functionality in iOS?
Thanks for help
It is not possible to observe exactly on touching any button on the device. It is the same with volume buttons, you can observe the effect (volume went up or down) but not the pushing button in fact (the volume changed could be triggered in other way).
Sum up:
This is not possible, do not go for it.
I would like to execute some code when user presses one of home, power or volume buttons(it doesn't matter, which of these).
I would like to catch events even application is minimized to background and device is sleeping.
So primary task is processing events, when device is inside user's pocket and the user presses button, but not takes out the device.
Is that possible? If it isnt't possible for power button, may be it's possible for volume or home buttons? How can I do it?
Your application cannot interact with the hardware buttons on an iOS device. Your application can receive notification that it has entered the background (which may be a side-effect of the use pressing the home button, for example) but that is about all
There is idea about volume buttons, if you create player instance you can get notifications about volume change, not sure that is still work but you can try.
see answers here: program access to iPhone volume buttons
I came to know that iOS does't support widgets this is what i have read.But i am making application on Security in iOS, i want the user to perform some action when he is in need of help without opening the application.
I know iOS supports few background modes like play audio,receive location updates,voip etc.
Can anyone suggest me any alternative to fire some methods without opening the application like pressing some button when in dangerous situation to call those methods.
I don't know whether we can do it or not.
But have a look.
You said we can implement background modes like audio, location, voip updates etc.
Let take the example of Audio mode. It has previous, play/pause, and next button in the lockscreen.
What you can do is play an audio when the application is in background mode.
Check whether the any of the music buttons are pressed more than 3 times. If this is the case trigger alert messages for security and send them to appropriate persons or do your own action.
I don't know whether we can do this or not. Even if it is possible, I can't say Apple will allow such false actions for buttons which are meant for some purpose.
Also see whether we can get detect volume button presses when in background mode. If that is possible you can do that. Because even my LG mobile has an SOS mode which is enabled when I press volume buton in lockscreen 4 times. Apple may allow this action if it possible
I am using AVPlayer to playback a continuous internet radio stream. I set up an AVAudioSession and my Info.plist to continue playback while the app is in background, and handle the remote control events to play, pause and stop.
On iOS there are controls for next and previous track in the multitasking bar, in the lock screen, on connected Bluetooth devices and so on. With these controls available and not "grayed out" the user assumes he could skip to another "track". But this is not possible in my scenario. There are no single "tracks". The app can only consume what is played by the icecast server.
Question: Is it possible to hide or disable these controls, so the user understands that it is not possible to skip to another "track"? (And if yes, how?)
No. Just don't respond to those controls. Respond only to the controls you do respond to (e.g. playpause button).
In this example from one of my apps:
The "next" and "previous" buttons do nothing; they are meaningless. But I've never gotten a complaint from a user.