Javascript iOS中的Ionic应用程序无法使用cordova插件媒体播放本地音频

我不能用ionic和cordova插件媒体播放音频，但这只能在iOS和本地音频中进行

控制器非常简单，只需设置一个

新媒体

并播放即可。回调只返回其参数的日志

$scope.data = {};
$scope.playMedia = function(){
    // Get file path base for every each platform 
    var pathBase = ionic.Platform.platform().toLowerCase() === "android" ? "/android_asset/www/" : "";
    var source = pathBase + "audios/parts/99.mp3";
    console.log("source: " + source);

    // Set source and callbacks
    $scope.data.media = new Media(source, mediaSuccess, mediaError, mediaStatus);
    $scope.data.media.play();

    // Update media position every half second
    $interval(updatePosition, 500);
};

function updatePosition(){
    $scope.data.media.getCurrentPosition(function (position) {
        if (position > -1) {
            $scope.data.position = position;
            console.log(position);
        }
    });
};

媒体状态返回2，

Media.Media\u正在运行

，因此文件存在并已找到，但如您所见，位置为0

2016-03-04 17:58:21.358 Play Local Audio[2549:1228498] source: audios/parts/99.mp3
2016-03-04 17:58:21.374 Play Local Audio[2549:1228498] THREAD WARNING: ['Media'] took '14.875000' ms. Plugin should use a background thread.
2016-03-04 17:58:21.376 Play Local Audio[2549:1228657] Found resource '/var/mobile/Containers/Bundle/Application/E70EE8B6-F5A8-49F7-9A7D-3A963C3AD439/Play Local Audio.app/www/audios/parts/99.mp3' in the web folder.
2016-03-04 17:58:21.395 Play Local Audio[2549:1228657] Playing audio sample 'audios/parts/99.mp3'
2016-03-04 17:58:21.398 Play Local Audio[2549:1228657] Playing stream with AVPlayer & custom rate
2016-03-04 17:58:21.400 Play Local Audio[2549:1228498] mediaStatus:
2016-03-04 17:58:21.401 Play Local Audio[2549:1228498] 2
2016-03-04 17:58:21.401 Play Local Audio[2549:1228498] $scope.data.media:
2016-03-04 17:58:21.401 Play Local Audio[2549:1228498] {"id":"a15cc81b-fd6d-4e12-7e95-0361d0a977a1","src":"audios/parts/99.mp3","_duration":0,"_position":-1}
2016-03-04 17:58:21.866 Play Local Audio[2549:1228498] 0
2016-03-04 17:58:22.341 Play Local Audio[2549:1228498] 0
2016-03-04 17:58:22.842 Play Local Audio[2549:1228498] 0
2016-03-04 17:58:23.343 Play Local Audio[2549:1228498] 0
2016-03-04 17:58:23.845 Play Local Audio[2549:1228498] 0
2016-03-04 17:58:24.346 Play Local Audio[2549:1228498] 0
2016-03-04 17:58:24.847 Play Local Audio[2549:1228498] 0
2016-03-04 17:58:25.348 Play Local Audio[2549:1228498] 0
2016-03-04 17:58:25.850 Play Local Audio[2549:1228498] 0
2016-03-04 17:58:26.351 Play Local Audio[2549:1228498] 0

但如果我尝试使用外部音频：

http://www.sample-videos.com/audio/mp3/crowd-cheering.mp3

它可以工作。这是我在本地播放的音频

    $scope.data.media = new Media('http://www.sample-videos.com/audio/mp3/crowd-cheering.mp3', mediaSuccess, mediaError, mediaStatus);

---

知道为什么吗？

这是影响iOS 9.2的插件的一个bug，我按照描述更改了两行，并播放了音频

文件

src/ios/CDVSound.m

，替换

第219行：

 CDVAudioFile* audioFile = [self audioFileForResource:resourcePath withId:mediaId doValidation:YES forRecording:NO]; 

第226行：

NSURL* resourceUrl = audioFile.resourceURL;

---

您好，如本文所述，有另一种方法/解决方法可以解决此问题：

在方法中：

- (void)startPlayingAudio:(CDVInvokedUrlCommand*)command

更换这些线路：

发件人：

致：

在这个链接上，答案的作者再次受到赞扬：

 if (audioFile.rate != nil){
    float customRate = [audioFile.rate floatValue];
    NSLog(@"Playing stream with AVPlayer & custom rate");
    [avPlayersetRate:customRate];
} else {
    NSLog(@"Playing stream with AVPlayer & custom rate");
    [avPlayer play];
}

if (audioFile.rate != nil){
    float customRate = [audioFile.rate floatValue];
    NSLog(@"Playing stream with AVPlayer & custom rate");
    [audioFile.player setRate:customRate];
} else {
    NSLog(@"Playing stream with AVPlayer & custom rate");
    [audioFile.player play];
}