Stop background music - ios

Question

I have this app that has several view controllers. In the app delegate, I set it so that as soon as the app finishes launching, the background music starts. However, on another view controller, I have this button that plays this video. My problem is that when I play the movie, the background audio overlaps with the movie. My question is, how do I stop the music when I play the movie and play the music after the movie ends.
Here is my app_delegate.h:
#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>
#interface App_Delegate : NSObject <UIApplicationDelegate> {
UIWindow *window;
UINavigationController *navigationController;
}
#property (nonatomic, retain) IBOutlet UIWindow *window;
#property (nonatomic, retain) IBOutlet UINavigationController *navigationController;
#end
Here is my App_Delegate.m
#import "App_Delegate.h"
#import "RootViewController.h"
#implementation App_Delegate
#synthesize window;
#synthesize navigationController;
#pragma mark -
#pragma mark Application lifecycle
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
{NSString* soundFilePath = [[NSBundle mainBundle] pathForResource:#"beethoven_sym_5_i" ofType:#"mp3"];
NSURL* soundFileURL = [NSURL fileURLWithPath:soundFilePath];
AVAudioPlayer* player = [[AVAudioPlayer alloc] initWithContentsOfURL:soundFileURL error:nil];
player.numberOfLoops=-1;
[player play];
}
// Override point for customization after application launch.
// Set the navigation controller as the window's root view controller and display.
self.window.rootViewController = self.navigationController;
[self.window makeKeyAndVisible];
return YES;
}
- (void)dealloc {
[navigationController release];
[window release];
[super dealloc];
}
#end
My MovieViewController.h:
#import <UIKit/UIKit.h>
#import <MediaPlayer/MediaPlayer.h>
#import <AVFoundation/AVFoundation.h>
#interface MovieViewController : UIViewController {
IBOutlet UIScrollView *sesamescroller;
}
- (IBAction)playsesamemovie:(id)sender;
#end
Finally, my MovieViewController.m
#import "MovieViewController.h"
#interface MovieViewController ()
#end
#implementation MovieViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
- (void)viewDidUnload
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (IBAction)playsesamemovie:(id)sender {
NSString *filepath = [[NSBundle mainBundle] pathForResource:#"How to make Sesame chicken" ofType:#"mp4"];
NSURL *fileURL = [NSURL fileURLWithPath:filepath];
MPMoviePlayerController *moviePlayerController = [[MPMoviePlayerController alloc] initWithContentURL:fileURL];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(moviePlaybackComplete:)
name:MPMoviePlayerPlaybackDidFinishNotification
object:moviePlayerController];
[self.view addSubview:moviePlayerController.view];
moviePlayerController.fullscreen = YES;
[moviePlayerController play];
}
- (void)moviePlaybackComplete:(NSNotification *)notification
{
MPMoviePlayerController *moviePlayerController = [notification object];
[[NSNotificationCenter defaultCenter] removeObserver:self
name:MPMoviePlayerPlaybackDidFinishNotification
object:moviePlayerController];
[moviePlayerController.view removeFromSuperview];
[moviePlayerController release];
}
- (void)dealloc {
[sesamescroller release];
[super dealloc];
}
#end

Answer 1

The code you show has a local variable pointing to the player object. To control the player, other code needs to be able to find it. Like this:
In App_Delegate.h:
#property (strong) AVAudioPlayer *player;
in App_Delegate.m: (where did this underbar come from? Most unconventional!)
self.player = [[AVAudioPlayer alloc] initWithContentsOfURL:soundFileURL error:nil];
self.player.numberOfLoops=-1;
[self.player play];
Then, wherever you want to control it:
[((App_Delegate *)([UIApplication sharedApplication].delegate)).player pause];
// ...
[((App_Delegate *)([UIApplication sharedApplication].delegate)).player play];

Answer 2

set scalling mode to your player
for Paused :
[moviePlayerController setScalingMode:MPMoviePlaybackStatePaused];
for Stopped:
[moviePlayerController setScalingMode:MPMoviePlaybackStateStopped];

Answer 3

If possible on iOS, you can use scriptable feature to send message to mute. I did this sometime back for Mac OS X where I used to control iTunes from another app.

Answer 4

First add start to songs in application delegate
.h application delegate
#import <UIKit/UIKit.h>
#import <AudioToolbox/AudioToolbox.h>
#import <AVFoundation/AVFoundation.h>
#class ViewController;
#interface AppDelegate : UIResponder <UIApplicationDelegate,AVAudioPlayerDelegate>
{
AVAudioPlayer *myAudioPlayer;
NSDictionary *config;
NSMutableArray *ARRAY;
}
-(void)stop;
#property(retain,nonatomic) NSDictionary *config;
#property (nonatomic, retain) AVAudioPlayer *myAudioPlayer;
#property (strong, nonatomic) UIWindow *window;
#property (strong, nonatomic) ViewController *viewController;
#end
.m application delegate
#implementation AppDelegate
{
AVAudioPlayer* audioPlayer;
}
#synthesize myAudioPlayer;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions: (NSDictionary *)launchOptions
{
audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:&error];
audioPlayer.delegate = self;
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];
[[AVAudioSession sharedInstance] setActive: YES error: nil];
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
audioPlayer.numberOfLoops = 1;
audioPlayer.delegate=self;
[audioPlayer play];
}
-(void)stop
{
[audioPlayer stop];
}
-(void)star
{
[audioPlayer play];
}
when use required start and stop background music in application
directly call this method -start and -stop
..it really work