I am new iOS developer .
I am trying to make the play/pause buttons in the now playing bar (home screen bottom bar) simulate the play/pause buttons in my app .
any help please .
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback
error:nil];
[[AVAudioSession sharedInstance] setActive:YES
error:nil];
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
[self.player play];
UIBackgroundTaskIdentifier newTaskId = UIBackgroundTaskInvalid;
if([player play]){
newTaskId = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:NULL];
bgTask = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^(void) {
[[UIApplication sharedApplication] endBackgroundTask: bgTask];
bgTask = UIBackgroundTaskInvalid;
}];
//Your bg code here
[[UIApplication sharedApplication] endBackgroundTask: bgTask];
bgTask = UIBackgroundTaskInvalid;
After calling:
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
in your app delegate you will receive events when the buttons are pressed... handle them like this:
-(void)remoteControlReceivedWithEvent:(UIEvent *)event
{
switch(event.subtype)
{
case UIEventSubtypeRemoteControlPause:
[player pause];
break;
case UIEventSubtypeRemoteControlPlay:
[player play];
break;
}
}
And add other cases for next/prev/etc....
Related
I am trying to execute my code whenever my app enters into background. But my code is not working. Here is my following code:
- (void)applicationDidEnterBackground:(UIApplication *)application {
__block UIBackgroundTaskIdentifier bgTask;
NSLog(#"enter in background task");
UIApplication *app = [UIApplication sharedApplication];
NSLog(#"app is %#",app);
bgTask = [app beginBackgroundTaskWithExpirationHandler:^{
NSLog(#"called function");
[app endBackgroundTask:bgTask];
bgTask = UIBackgroundTaskInvalid;
}]; }
But my code is not working. As it does not print called function.
Thanks in advance.
I want to fetch service for every 15 mins,so i am using NSTimer.It is working fine.But how to call same service while app is in background state by using nstimer.Nstimer is not working in background state.Please suggest me.
//when the application is about to move from active to inactive state.
- (void)applicationWillResignActive:(UIApplication *)application
{
[self sendBackgroundLocationToServer];
}
- (void) sendBackgroundLocationToServer
{
UIBackgroundTaskIdentifier bgTask = UIBackgroundTaskInvalid;
bgTask = [[UIApplication sharedApplication]
beginBackgroundTaskWithExpirationHandler:^{
[[UIApplication sharedApplication] endBackgroundTask:bgTask];
}];
//Start Timer
[self startTimer];
//Close the task
if (bgTask != UIBackgroundTaskInvalid)
{
[[UIApplication sharedApplication] endBackgroundTask:bgTask];
}
}
-(void) closeUpShopBeforeBackgrounding {
// this listen to the UIApplicationDidEnterBackgroundNotification
[self beginBackgroundUpdateTask];
// do some closing stuff
[self endBackgroundUpdateTask]; }
- (void) beginBackgroundUpdateTask {
self.backgroundTask = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^{
[self endBackgroundUpdateTask];
}]; }
- (void) endBackgroundUpdateTask {
[[UIApplication sharedApplication] endBackgroundTask: self.backgroundTask];
self.backgroundTask = UIBackgroundTaskInvalid; }
This code is working fine for me, but when I foreground the app again, its dead in the water. Its as if the viewDidLoads are not firing, and nothing is happening.
Is there anything I need to do when the app foregrounds to kick it back into life?
i'm making video capture function with overlay view. And now i want to call stopVideoCapture method in UIApplicationDidEnterBackgroundNotification. but the "stopVideoCapture" method is always failed with error message “/var/mobile/Media/PhotoData/takingvideo activity indicator already cleared”.
please tell me what's the problem.
following is the code invoked in UIApplicationDidEnterBackgroundNotification
UIApplication *app = [UIApplication sharedApplication];
self.bgTask = [app beginBackgroundTaskWithExpirationHandler:^{
[app endBackgroundTask:self.bgTask];
self.bgTask = UIBackgroundTaskInvalid;
}];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
if (isRecording) {
dispatch_async(dispatch_get_main_queue(), ^{
[self.imagePickerController stopVideoCapture];
});
}
[NSThread sleepForTimeInterval:5];
[app endBackgroundTask:self.bgTask];
self.bgTask = UIBackgroundTaskInvalid;
});
I'm making an iphone app(Live radio app).
My app is supported background mode.
But, if the phone rings when radio app is playing in background mode, my app stop with errors .
MP AVAudioSessionDelegateMediaPlayerOnly end interruption. Interruptor <Phone> category <completed> resumable <0>, _state = 6
MP endInterruptionFromInterruptor :: resuming playback
So, I modified my code, but useless.
I'll add my code. Please tell me my faults. Thanks.
AppDelegate.h
#interface AppDelegate : UIResponder <UIApplicationDelegate, AVAudioSessionDelegate>
#property (assign, nonatomic) UIBackgroundTaskIdentifier bgTask;
... ...
#end
AppDelegate.m
- (void)applicationDidEnterBackground:(UIApplication *)application
{
bgTask = [application beginBackgroundTaskWithExpirationHandler:^{
// Clean up any unfinished task business by marking where you.
// stopped or ending the task outright.
[application endBackgroundTask:bgTask];
bgTask = UIBackgroundTaskInvalid;
}];
// Start the long-running task and return immediately.
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
// Do the work associated with the task, preferably in chunks.
[application endBackgroundTask:bgTask];
bgTask = UIBackgroundTaskInvalid;
});
}
- (void)applicationDidBecomeActive:(UIApplication *)application
{
bgTask = [application beginBackgroundTaskWithExpirationHandler:^{
[application endBackgroundTask:bgTask];
bgTask = UIBackgroundTaskInvalid;
}];
}
viewController.m
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error: nil];
moviePlayer = [[MPMoviePlayerController alloc] init];
[moviePlayer setContentURL:... m3u8];
[moviePlayer play];
you need to add this:
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];