iPhone 睡眠时可以播放声音吗？
如何在 iPhone 睡眠时播放自定义循环声音（在我的应用程序打开时从我的应用程序播放）？
我正在使用此代码来播放音频文件：
NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:@"sample_name" ofType:@"wav"];
NSData *sampleData = [[NSData alloc] initWithContentsOfFile:soundFilePath];
NSError *audioError = nil;
// Set up the audio player
testAudioPlayer = [[AVAudioPlayer alloc] initWithData:sampleData error:&audioError];
[sampleData release];
if(audioError != nil) {
NSLog(@"An audio error occurred: \"%@\"", audioError);
}
else {
[testAudioPlayer setNumberOfLoops: -1];
[testAudioPlayer play];
}
但如果 iPhone 处于睡眠状态，则不会播放。
Pandora 以及其他类似的应用程序都具有此功能。
How can I play a custom, looping sound (from my app, while my app is open) while the iPhone is sleeping?
I'm using this code to play a audio file:
NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:@"sample_name" ofType:@"wav"];
NSData *sampleData = [[NSData alloc] initWithContentsOfFile:soundFilePath];
NSError *audioError = nil;
// Set up the audio player
testAudioPlayer = [[AVAudioPlayer alloc] initWithData:sampleData error:&audioError];
[sampleData release];
if(audioError != nil) {
NSLog(@"An audio error occurred: \"%@\"", audioError);
}
else {
[testAudioPlayer setNumberOfLoops: -1];
[testAudioPlayer play];
}
But it doesn't play if the iPhone is sleeping.
Pandora has this ability, along with other similar apps.
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如果您在手机进入睡眠状态时播放声音，您将继续像 Pandora 和其他人一样在后台运行。
如果用户将设备置于睡眠状态时您没有播放声音，您将被暂停。
这个答案中有一个对苹果文档的参考。
在屏幕关闭的情况下播放声音/ 不要让 iPhone 进入睡眠状态
If you are playing a sound when the phone goes to sleep, you will continue to run in the background as Pandora and others do.
If you are not playing a sound when the user puts the device to sleep, you will be suspended.
There's a reference in this answer to the apple documentation for this.
Play sound with screen turned off / don't let iPhone go to sleep
尝试注册本地通知。
Try registering for a local notification.