objective c - Audio player works in simulator but not on iOS device -

i have following code initializing:

nsstring *path = [nsstring stringwithformat:@"%@/test.mp3", [[nsbundle mainbundle] resourcepath]]; nsurl *soundurl = [nsurl fileurlwithpath:path]; _audioplayer = [[avaudioplayer alloc] initwithcontentsofurl:soundurl error:nil]; 

then button starts player

[_audioplayer play]; 

so works fine when on simulator doesn't work on device.

the proper way path of file in app bundle this:

nsstring *path = [[nsbundle mainbundle] pathforresource:@"test" oftype:@"mp3"]; 

but if want nsurl, use following directly:

nsurl *soundurl = [[nsbundle mainbundle] urlforresource:@"test" withextension:@"mp3"]; 

also, simulator isn't case sensitive real device is. make sure file named test.mp3 , not test.mp3. update name in code match actual filename.

use debugger make sure soundurl isn't nil. if not audio player still doesn't work, use error parameter see why:

nserror *error = nil; _audioplayer = [[avaudioplayer alloc] initwithcontentsofurl:soundurl error:&error]; if (!_audioplayer) {     nslog(@"unable create audio player: %@", error); }