不能在lock.aiff中播放SpringBoard.app

Question

如果lock.aiff 7 SDK，则在侧SpringBoard.app中有一个名为iOS的声音文件。声音文件的路径如下所示。

iPhoneSimulator7.0.sdk/System/Library/CoreServices/SpringBoard.app/lock.aiffs

这是我的密码。

    NSString *path = [[NSBundle bundleWithIdentifier:@"com.apple.UIKit"] bundlePath];
    NSString *frameworkPath = [path stringByDeletingLastPathComponent];
    NSString *libraryPath = [frameworkPath stringByDeletingLastPathComponent];
    NSString *finalePath = [libraryPath stringByAppendingString:@"/CoreServices/SpringBoard.app/lock.aiff"];

    NSURL *fileURL = [NSURL fileURLWithPath:finalePath];
    SystemSoundID soundID;
    AudioServicesCreateSystemSoundID((__bridge_retained CFURLRef)fileURL,&soundID);
    AudioServicesPlaySystemSound(soundID);

Value of the variable finalePath = "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk/System/Library/CoreServices/SpringBoard.app/lock.aiff"

但是我不能在模拟器上播放这个声音文件。另外，我不能在SpringBoard.app中播放任何声音文件。但我可以成功地播放任何其他文件。例如，下面位置的声音文件播放得很好。

iPhoneSimulator7.0.sdk/System/Library/PrivateFrameworks/AOSNotification.framework/findme_alarm_2.aiff 

我的猜测是，由于lock.aiffs在SpringBoard.app中，它会导致某种problem.So --如何播放lock.aiff文件。

Answer 1

由于iOS应用程序的沙箱特性，您无法访问另一个应用程序包中的资源。

但是，您可以播放系统声音，例如锁声音，如下所示：

NSURL *fileURL = [NSURL URLWithString:@"/System/Library/Audio/UISounds/lock.caf"]; 
SystemSoundID soundID;
AudioServicesCreateSystemSoundID((__bridge_retained CFURLRef)fileURL,&soundID);
AudioServicesPlaySystemSound(soundID);

下面是您可以访问的iOS 7.0.2中的系统声音的完整列表：

/System/Library/Audio/UISounds/Modern/airdrop_invite.caf
/System/Library/Audio/UISounds/Modern/calendar_alert_chord.caf
/System/Library/Audio/UISounds/Modern/camera_shutter_burst.caf
/System/Library/Audio/UISounds/Modern/camera_shutter_burst_begin.caf
/System/Library/Audio/UISounds/Modern/camera_shutter_burst_end.caf
/System/Library/Audio/UISounds/Modern/sms_alert_aurora.caf
/System/Library/Audio/UISounds/Modern/sms_alert_bamboo.caf
/System/Library/Audio/UISounds/Modern/sms_alert_circles.caf
/System/Library/Audio/UISounds/Modern/sms_alert_complete.caf
/System/Library/Audio/UISounds/Modern/sms_alert_hello.caf
/System/Library/Audio/UISounds/Modern/sms_alert_input.caf
/System/Library/Audio/UISounds/Modern/sms_alert_keys.caf
/System/Library/Audio/UISounds/Modern/sms_alert_note.caf
/System/Library/Audio/UISounds/Modern/sms_alert_popcorn.caf
/System/Library/Audio/UISounds/Modern/sms_alert_synth.caf
/System/Library/Audio/UISounds/New/Anticipate.caf
/System/Library/Audio/UISounds/New/Bloom.caf
/System/Library/Audio/UISounds/New/Calypso.caf
/System/Library/Audio/UISounds/New/Choo_Choo.caf
/System/Library/Audio/UISounds/New/Descent.caf
/System/Library/Audio/UISounds/New/Fanfare.caf
/System/Library/Audio/UISounds/New/Ladder.caf
/System/Library/Audio/UISounds/New/Minuet.caf
/System/Library/Audio/UISounds/New/News_Flash.caf
/System/Library/Audio/UISounds/New/Noir.caf
/System/Library/Audio/UISounds/New/Sherwood_Forest.caf
/System/Library/Audio/UISounds/New/Spell.caf
/System/Library/Audio/UISounds/New/Suspense.caf
/System/Library/Audio/UISounds/New/Telegraph.caf
/System/Library/Audio/UISounds/New/Tiptoes.caf
/System/Library/Audio/UISounds/New/Typewriters.caf
/System/Library/Audio/UISounds/New/Update.caf
/System/Library/Audio/UISounds/ReceivedMessage.caf
/System/Library/Audio/UISounds/RingerChanged.caf
/System/Library/Audio/UISounds/SIMToolkitCallDropped.caf
/System/Library/Audio/UISounds/SIMToolkitGeneralBeep.caf
/System/Library/Audio/UISounds/SIMToolkitNegativeACK.caf
/System/Library/Audio/UISounds/SIMToolkitPositiveACK.caf
/System/Library/Audio/UISounds/SIMToolkitSMS.caf
/System/Library/Audio/UISounds/SentMessage.caf
/System/Library/Audio/UISounds/Swish.caf
/System/Library/Audio/UISounds/Tink.caf
/System/Library/Audio/UISounds/Tock.caf
/System/Library/Audio/UISounds/Voicemail.caf
/System/Library/Audio/UISounds/alarm.caf
/System/Library/Audio/UISounds/beep-beep.caf
/System/Library/Audio/UISounds/begin_record.caf
/System/Library/Audio/UISounds/begin_video_record.caf
/System/Library/Audio/UISounds/ct-busy.caf
/System/Library/Audio/UISounds/ct-call-waiting.caf
/System/Library/Audio/UISounds/ct-congestion.caf
/System/Library/Audio/UISounds/ct-error.caf
/System/Library/Audio/UISounds/ct-keytone2.caf
/System/Library/Audio/UISounds/ct-path-ack.caf
/System/Library/Audio/UISounds/dtmf-0.caf
/System/Library/Audio/UISounds/dtmf-1.caf
/System/Library/Audio/UISounds/dtmf-2.caf
/System/Library/Audio/UISounds/dtmf-3.caf
/System/Library/Audio/UISounds/dtmf-4.caf
/System/Library/Audio/UISounds/dtmf-5.caf
/System/Library/Audio/UISounds/dtmf-6.caf
/System/Library/Audio/UISounds/dtmf-7.caf
/System/Library/Audio/UISounds/dtmf-8.caf
/System/Library/Audio/UISounds/dtmf-9.caf
/System/Library/Audio/UISounds/dtmf-pound.caf
/System/Library/Audio/UISounds/dtmf-star.caf
/System/Library/Audio/UISounds/end_record.caf
/System/Library/Audio/UISounds/end_video_record.caf
/System/Library/Audio/UISounds/jbl_ambiguous.caf
/System/Library/Audio/UISounds/jbl_begin.caf
/System/Library/Audio/UISounds/jbl_cancel.caf
/System/Library/Audio/UISounds/jbl_confirm.caf
/System/Library/Audio/UISounds/jbl_no_match.caf
/System/Library/Audio/UISounds/lock.caf
/System/Library/Audio/UISounds/long_low_short_high.caf
/System/Library/Audio/UISounds/low_power.caf
/System/Library/Audio/UISounds/mail-sent.caf
/System/Library/Audio/UISounds/middle_9_short_double_low.caf
/System/Library/Audio/UISounds/new-mail.caf
/System/Library/Audio/UISounds/photoShutter.caf
/System/Library/Audio/UISounds/shake.caf
/System/Library/Audio/UISounds/short_double_high.caf
/System/Library/Audio/UISounds/short_double_low.caf
/System/Library/Audio/UISounds/short_low_high.caf
/System/Library/Audio/UISounds/sms-received1.caf
/System/Library/Audio/UISounds/sms-received2.caf
/System/Library/Audio/UISounds/sms-received3.caf
/System/Library/Audio/UISounds/sms-received4.caf
/System/Library/Audio/UISounds/sms-received5.caf
/System/Library/Audio/UISounds/sms-received6.caf
/System/Library/Audio/UISounds/sq_alarm.caf
/System/Library/Audio/UISounds/sq_beep-beep.caf
/System/Library/Audio/UISounds/sq_lock.caf
/System/Library/Audio/UISounds/sq_tock.caf
/System/Library/Audio/UISounds/tweet_sent.caf
/System/Library/Audio/UISounds/unlock.caf
/System/Library/Audio/UISounds/ussd.caf
/System/Library/Audio/UISounds/vc~ended.caf
/System/Library/Audio/UISounds/vc~invitation-accepted.caf
/System/Library/Audio/UISounds/vc~ringing.caf