Play music in the background of iOS

Play music in the background of iOS Blog Category:

• Ios

http://www.apple.com.cn/developer/iphone/library/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/ Audioandvideotechnologies/audioandvideotechnologies.html#//apple_ref/doc/uid/tp40007072-ch19-sw32

1. First import the frame used to play the music in the Project: AV Foundation framework

2. Add code to the project:

Import Frame Header file:

Java code

1. #Import <AVFoundation/AVFoundation.h>

To define a player variable:

Java code

1. Avaudioplayer *player;
2. @property (Strong, nonatomic) Avaudioplayer *player;

To customize the playback method:

Java code

2. -(void) playsound{
4. [[Avaudiosession sharedinstance] Setcategory:avaudiosessioncategoryplayback Error:nil];
6. [[Avaudiosession sharedinstance] Setactive:yes Error:nil];
10. NSString *soundfilepath =
12. [[NSBundle Mainbundle] Pathforresource: @"sound" OfType: @"MP3"];
16. Nsurl *fileurl = [[Nsurl alloc] initfileurlwithpath:soundfilepath];
20. Self.player = [[Avaudioplayer alloc] Initwithcontentsofurl:fileurl Error:nil];
22. [FileURL release];
26. [Player play];
28. [Player Setdelegate:self];
30. }

Press the home key to pause playback (APPDELEGATE.M):

Java code

1. -(void) Applicationdidenterbackground: (uiapplication *) Application
2. {
3. if (self.player.playing) {
4. [Self.player pause];
5. }
6. }

Run the software to continue playback (APPDELEGATE.M):

Java code

1. -(void) Applicationwillenterforeground: (uiapplication *) Application
2. {
3. if (self.player.playing = = NO) {
4. [Self.player play];
5. }
6. }

Java code

1. Simulator can be tested!

Play music in the background of iOS