I am badly in need of a background task to run always, when application is in background.
It is needed for a voip application. All steps are done for voip app.
I am using following script to run background task
- (void)applicationDidEnterBackground:(UIApplication *)application
{
UIApplication *app = [UIApplication sharedApplication];
UIBackgroundTaskIdentifier bgTask;
self.bgTask = [app beginBackgroundTaskWithExpirationHandler:^{
[app endBackgroundTask:self.bgTask];
}];
}
After using it, when application goes to background, within 10 minutes if a sip call comes UILocalnotification appear. but after 10 minutes if a sip call comes UILocalnotification did not appear.
Please anybody help me.
Have you added voip as a background mode to the UIBackgroundModes key in your application Info.plist file?
There may be a possibility that your app is crashing because of many requests in background.I hope that you already followed these steps:
There are several requirements for implementing a VoIP app:
Add the UIBackgroundModes key to your app’s Info.plist file. Set the
value of this key to an array that includes the voip string.
Configure one of the app’s sockets for VoIP usage.
Before moving to the background, call the
- setKeepAliveTimeout:handler: method to install a handler to be
executed periodically. Your app can use this handler to maintain its
service connection.
Configure your audio session to handle transitions to and from active
use.
To ensure a better user experience on iPhone, use the Core Telephony
framework to adjust your behavior in relation to cell-based phone
calls; see Core Telephony Framework Reference.
To ensure good performance for your VoIP app, use the System
Configuration framework to detect network changes and allow your app
to sleep as much as possible.
