What will happen to background process after restarting the device. Will it be Suspended?
Yes... the device is restarted so all is reseted.
Related
I have an application that runs in the background on Android device. The application performs certain tasks which are scheduled from a control panel. Normally the tasks are performed when requested. However many times the device goes into Doze mode and the tasks are never executed.
I have tried using the PowerManager feature called wake-locks but the system ignores the wake-locks.
Doze Restrictions
Is there a way to programmatically disable Doze Mode for processing background tasks of this app but keep the screen off?
Inside WLClient.h mention this comment.
#note The client sends a heartbeat signal to the server only when
the application is in the foreground. When the application is sent to
the background, the client stops sending heartbeat signals. The client
resumes sending heartbeat signals when the application is brought to
the foreground again.
I set my setHeartBeatInterval to 420. which is default. But when the app goes into background with lock screen. It still will call the heartbeat after 420 seconds. Then my app crash.
Is there anyway to disable the heartbeat call when the app goes into background?
Thanks so much =)
On MFP 7.1, we are not seeing any issue with heartbeat in both iOS 9.3.5 and iOS 10. In both iOS versions, when the app is in background(by pressing home or behind the lock screen), the heartbeats are paused and are not sent.
We see this behavior in the latest v7.1 iFix version and on iOS devices running iOS9.3.5 and iOS10.
However, on iOS10 simulator, we can see couple of heartbeat requests are made when the screen is locked or if the home button is pressed. But, even here, when the app is resumed, there is no crash. This seems to be a behavior with iOS 10 simulator only.
I have an exe file which needs to be running on the VMs (win7 and win8 VM images) on VMWarestation 9.
The exe usually runs for more than 3 hours, so I need to make sure the VM is not going to suspension mode within the 3 hours.
I have disabled the screensaver mode and sleep mode from the Control Panel of the VM images, and also I disabled the screensaver and sleep mode on the host machine which is running the workstation.
But, the VM images still go to the suspension mode within the 3 hours, in that case, I cannot have the exe finishing running.
Does anyone know how to prevent the VM image from going to suspension mode please? Thanks in advance.
This application is location awareness app. It uses GPS details so it can be run in background. But is it possible to send the collected data to a remote server while the app is in background? or maybe when the screen is locked?
For Required background modes add App registers for location updates in plist, this will make application work in background and you can send location updates to server.
Here consider that your location services are not continuously on, else it will drain complete battery of device.
Hope this help you..
I'm building a voip app for iOS and I'm handling working at background.
So far, i have iOS listening to the voip socket while app sleeps and wake it uppon incoming data.
My question is:
When the reachability has changed (Wifi -> 3G, Wifi -> Other Wifi, etc)
and the app is suspended, can I get some notification in order to reconnect my voip socket?
Thanks.
Answer was both Yes and No:
Register to Reachability network changes notifications.
If App goes to background suspended while its voip socket (see link) is connected, then uppon network changes app will wake up at background for 10 seconds.
If App goes to background suspended while its voip socket is NOT connected, then uppon network changes app will NOT wake up.
The solution for the scenario of network loss and going to background with no connection may be fixing the connection in the Keep-Alive block that you can schedule at UIApplication.
Note: during the mentioned 10 sec, you may ask for a background task in order to finish the reconnection job.
Links:
VoIP socket in iOS
VoIP socket wakeups - iOS 5 Watchdog
If you have a backgrounding socket you can subscribe to reachability notifications and they will fire while backgrounded so you can perform actions on the reachability changes. If you don't unsubscribe to the notifications when you hit the background you'll still get them if the object subscribing to the notifications is your app delegate.