cordova-plugin-media 没有从本地 URI 播放

Question

尝试播放手机外部存储中的音频文件。

首先通过this plugin 查找特定mp3 文件的URI。然后将其传递给cordova-plugin-media 实例。

// find music file URI from the sdcard
new ExternalStorageSdcardAccess( fileHandler ).scanPath( "file:///storage/C67A-18F7/Music/" );
function fileHandler( fileEntry ) {
    // console.log( fileEntry.name + " | " + fileEntry.toURL() );
}    

// create a button instance
let mbutton = new Button({
  centerX: 0, top: [fbutton,100],
  text: 'play music'  
}).appendTo(ui.contentView);    

// call the play media function from the button
mbutton.on('select', () => {
    // load and play the music:
    playAudio("file:///storage/C67A-18F7/Music/demo/testSound.mp3")

});    

function playAudio(url) {
    // Play the audio file at url
    var my_media = new Media(url,
        // success callback
        function () {
            console.log("playAudio():Audio Success");
        },
        // error callback
        function (err) {
            console.log("playAudio():Audio Error: " + err.code + err.message);
        },
        // status callback
        function (status) {
            console.log("playAudio():Audio Status: " + status);
        }
    );
    // Play audio
    my_media.play();
    my_media.setVolume('1.0');
}

我检查了adb 的日志。这就是我专门点击这些按钮的结果 - http://paste.ubuntu.com/25767292/

incoming-operation: 'Call' on 'cordova.plugin' (o13) with method 'exec' with properties {action=create, arguments=["d39113d0-b5f5-bf2d-8a84-5afbbc6ae9a0","file:///storage/C67A-18F7/Music/demo/testSound.mp3"], callbackId=Media975330222}
incoming-operation: 'Call' on 'cordova.plugin' (o13) with method 'exec' with properties {action=startPlayingAudio, arguments=["d39113d0-b5f5-bf2d-8a84-5afbbc6ae9a0","file:///storage/C67A-18F7/Music/demo/testSound.mp3",null], callbackId=INVALID}
outgoing-operation: 'Notify' o13 of 'finish' with arguments {message=S01 Media975330222 s, status=1, keepCallback=false, callbackId=Media975330222}
ExtMediaPlayer-JNI: env->IsInstanceOf fails
MediaPlayer-JNI: JNIMediaPlayerFactory: bIsQCMediaPlayerPresent 0
ExtMediaPlayer-JNI: env->IsInstanceOf fails
MediaPlayer-JNI: JNIMediaPlayerFactory: bIsQCMediaPlayerPresent 0

Answer 1

我正在使用带有离子反应项目的电容器，并且能够通过将它与 cordova-plugin-file 结合使用来让 cordova-plugin-media 播放本地文件.我是离子原生包装器，但我认为这里的代码相同。

注意：iOS 要求您删除“file://”，而 Android 不需要。

    const finishedFilePath = `${File.applicationDirectory}public/assets/audio/file.mp3`;
const hybridTransitionAudioFile = Media.create(isPlatform('ios') ? transitionFilePath.replace('file://', '') : transitionFilePath);
hybridTransitionAudioFile.play();

Answer 2

1- 安装这个

https://play.google.com/store/apps/details?id=com.adobe.phonegap.app&hl=en

2- 安装这个

http://docs.phonegap.com/getting-started/1-install-phonegap/desktop/

3- 将您的笔记本电脑和手机连接到同一网络

4-按照此入门并在您的手机上运行它，我想您不会遇到同样的错误，因为我的情况是它在浏览器或模拟器中不起作用，以防手机中断

参考： https://phonegap.com/getstarted/

反馈一下，我可以在这里更新我的答案

HTML 部分 用于音频源

        <audio id="successSound" src="/android_asset/www/audio/correct.mp3" type="audio/mpeg"></audio>
        <audio id="errorSound" src="/android_asset/www/audio/error.mp3" type="audio/mpeg" ></audio>
    </body>
</html>

示例我的版本，希望对它有帮助

playAudio("errorSound");


var my_media = null;
var mediaTimer = null;

function playAudio(id) {
    var audioElement = document.getElementById(id);
    var src = audioElement.getAttribute('src');
    // Create Media object from src
    my_media = new Media(src, onSuccess, onError);

    // Play audio
    my_media.play();

    // Update my_media position every second
    if (mediaTimer == null) {
        mediaTimer = setInterval(function() {
            // get my_media position
            my_media.getCurrentPosition(
                // success callback
                function(position) {
                    if (position > -1) {
                        setAudioPosition((position) + " sec");
                    }
                },
                // error callback
                function(e) {
                    console.log("Error getting pos=" + e);
                    setAudioPosition("Error: " + e);
                }
            );
        }, 1000);
    }
}

function setAudioPosition(position) {
    document.getElementById('audio_position').innerHTML = position;
}


// onSuccess Callback
//
function onSuccess() {
}

// onError Callback
function onError(error) {
    switch(error.code){
        case MediaError.MEDIA_ERR_ABORTED:
        alert('MEDIA_ERR_ABORTED code: '    + error.code);
        break;
        case MediaError.MEDIA_ERR_NETWORK:
        alert('MEDIA_ERR_NETWORK code: '    + error.code);
        break;
        case MediaError.MEDIA_ERR_DECODE:
        alert('MEDIA_ERR_DECODE code: '    + error.code);
        break;
        case MediaError.MEDIA_ERR_NONE_SUPPORTED:
        alert('MEDIA_ERR_NONE_SUPPORTED code: '    + error.code);
        break;
    }
}