WKWebView无法播放本地音频 [英] WKWebView fails to play local audio

问题描述

由于iOS9我们可以渲染一个 WKWebView 使用 loadFileURL本地HTML：allowingReadAccessToURL：

Since iOS9 we can render local HTML with a WKWebView using loadFileURL:allowingReadAccessToURL:

这看起来不错，到目前为止，但我们有问题从HTML中扮演一个当地的mp3。
有一个＆LT;音频方式＆gt; 与MP3文件的相对路径src属性标记

This looks good so far, but we are having Problems playing a local mp3 from within the HTML. There is an <audio> tag with a src attribute with a relative path to the mp3 file.

该iOS9模拟器正确发挥我们的mp3，但设备不。醒目的JavaScript错误显示 networkState NETWORK_NO_SOURCE ，这没有任何意义对我们...
使用HTTP URL作为源文件和流的MP3从网络正常工作。

The iOS9-Simulator plays our mp3 correctly, but the Devices don't. Catching the Error with JavaScript shows a networkState NETWORK_NO_SOURCE, which does not make sense to us... Using an http URL as src and streaming the mp3 from the web works fine.

有没有人管理，以播放本地的音频文件与 WKWebView ？

Has anybody managed to play local audio files with a WKWebView?

推荐答案

我也遇到了在iOS 9.2这个问题。与本地URL的视频将在模拟器上，但不是在设备上播放的罚款。使用Safari调试工具显示了视频错误的一样没有源错误。我们提出了雷达是： http://www.openradar.me/24281444
这里是疯狂的一部分 - 工作（无需运行本地Web主机）是，我们发现，如果你在一个UIWebView首先播放视频那么wkwebview视频将工作1缺憾的解决方法。我们采取了这样的一步，使用的是隐藏发挥半秒视频没有声音了曾在标签自动播放属性，Web视图一个UIWebView有
uiWebView.mediaPlaybackRequiresUserAction = FALSE
虽然因为什么，我已经看到它会导致WKWebview来，然后播放视频罚款哈克。因此多了一个解决方案，直到他们解决问题。

I also encountered this issue on iOS 9.2. A video with a local URL would play fine on the simulator but not on device. Debugging using Safari tools showed the video error to the the same No source error. We filed a radar for it: http://www.openradar.me/24281444 Here is the crazy part - one kludgy workaround that worked (without having to run a local web host) was that we found if you played a video first in a UIWebView then the wkwebview videos would work. We took this a step further and used a UIWebview that was hidden to play a half second video with no sound that had an autoplay attribute in the tag and the web view had uiWebView.mediaPlaybackRequiresUserAction = false While hacky as anything I have seen it causes the WKWebview to then play videos fine. So one more solution until they fix the issue.

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