Avaudioplayer Alloc Initwithcontentsofurl Nil

ios - AVAudioPlayer initWithContentsOfURL returns nil for ...

https://stackoverflow.com/questions/20104398/avaudioplayer-initwithcontentsofurl-returns-nil-for-aac-m4a-files

How To Play Sounds - AVAudioPlayer Tutorial (For 2019)

https://codewithchris.com/avaudioplayer-tutorial/

In this AVAudioPlayer tutorial, we’re going to go through an example of playing a sound file that you’ve added to your Xcode project. You’ll see that it’s actually a really simple task to accomplish! Adding the framework to your project The first thing we’ll need to do is to add the AVFoundation framework to the

iOS AVAudioPlayer(音频播放) - 简书 - jianshu.com

https://www.jianshu.com/p/b6696495504b

iOS AVAudioPlayer(音频播放) AVAudioPlayer. 在iOS程序中，音频播放随处可见，有的声音只有1秒，有的声音好几分钟 。iOS支持的音频格式AAC、ALAC、IMA4、linear、MP3。 AVAudioPlayer类用于回放音频数据。是一个易于使用的类，它提供了大量的功能。

iOS--播放声音（AVAudioPlayer）、录音（AVAudioRecorder）_转 …

https://cxymm.net/article/u010165653/41750771

iOS--播放声音（AVAudioPlayer）、录音（AVAudioRecorder）_转身扭到脖子的专栏-程序员秘密. 技术标签： iOS--UI

AVAudioPlayer cannot play music with a NSTimer in background

https://www.py4u.net/discuss/2784061

Answer #2: before going to code. you need to tell the OS that you want permission to play music in background. you can do that by setting a Key in your app's info.plist. <key> UIBackgroundModes </key> <array> <string> audio </string> </array>. doing so, you will be able to play audio when app moves to background.

Tutorial: Playing Audio with AVAudioPlayer | iOS Developer ...

http://iosdeveloperzone.com/2012/10/01/tutorial-playing-audio-with-avaudioplayer/

13 Responses to Tutorial: Playing Audio with AVAudioPlayer. Hi Alex, thanks for the feedback. I really am hoping to write up the custom AVAudioPlayer soon. I am traveling at the moment and am finding it difficult to get time to sit down and write. Also, sometimes my access to internet connections is not so good.

AVAudioPlayer常用属性_majiakun1的专栏-程序员宝宝 - 程序员宝宝

https://cxybb.com/article/majiakun1/17188295

要使用 AVAudioPlayer 的对象播放文件，你只需为其指定一个音频文件并设定一个实现了AVAudioPlayerDelegate 协议的 delegate 对象。 初始化;1:initWithData:error:他使用一个指向内存中一些音频数据的NSData对象. 这种形式对于已经把音频数据下载到缓冲区的情形很有用.initWithContentsOfURL:

AVAudioPlayer实现音乐播放（AFSoundManager的简单介绍） - …

https://www.programminghunter.com/article/9707629796/

AVAudioPlayer实现音乐播放（AFSoundManager的简单介绍）. AVAudioPlayer是iOS自带的音乐播放类库，它只能播放单个声音文件，而且只能播放本地文件，不具备播放网络流媒体的能力。. 使用AVAudioPlayer首先需要导入AVFoundation.framework。. 用到的框架是AVFoundation框架。. …

iOS开发—02音乐的播放_沐阳的博客-程序员ITS401 - 程序员ITS401

https://its401.com/article/gaojq_ios/46404793

iOS开发拓展篇—音乐的播放一、简单说明 音乐播放用到一个叫做AVAudioPlayer的类，这个类可以用于播放手机本地的音乐文件 ...