Cordova媒体插件没有实现audioPlayerEndInterruption

Question

我已经创建了一个iOS应用程序，它在后台运行时播放音频。如果音频被中断(即:电话)，音频就会停止，再也不会恢复。

我认为这是因为cordova媒体插件没有实现audioPlayerEndInterruption

我对Javascript很在行，但对目标C几乎一无所知。有人有关于如何添加此功能的建议吗？

是否有不同的媒体插件实现audioPlayerEndInterruption，还是有一种简单的方法将audioPlayerEndInterruption集成到cordova插件中？

Answer 1

只是在这里跟进。最后，我为此编写了一个插件，它覆盖了一些默认的cordova媒体插件(v0.2.12)方法。我在这里发布了一个链接，但是代码很混乱。我只是想得到一些有用的东西，而不是真正的计划分享。但这里(没有提供文件，对不起)：

https://github.com/stevethorson/Interruptible-Cordova-Media.git

Answer 2

CDVSound.h -modify:add：，MEDIA_END_INTERRUPT =5

enum CDVMediaStates {
    MEDIA_NONE = 0,
    MEDIA_STARTING = 1,
    MEDIA_RUNNING = 2,
    MEDIA_PAUSED = 3,
    MEDIA_STOPPED = 4,
    MEDIA_END_INTERRUPT = 5
};

CDVSound.m -add：

- (void)audioPlayerEndInterruption:(AVAudioPlayer*)player successfully:(BOOL)flag
{
    CDVAudioPlayer* aPlayer = (CDVAudioPlayer*)player;
    NSString* mediaId = aPlayer.mediaId;
    CDVAudioFile* audioFile = [[self soundCache] objectForKey:mediaId];
    NSString* jsString = nil;

    if (audioFile != nil) {
        NSLog(@"Ended Interruption of playing audio sample '%@'", audioFile.resourcePath);
    }
    if (flag) {
        jsString = [NSString stringWithFormat:@"%@(\"%@\",%d,%d);", @"cordova.require('org.apache.cordova.media.Media').onStatus", mediaId, MEDIA_STATE, MEDIA_END_INTERRUPT];
    } else {
        jsString = [NSString stringWithFormat:@"%@(\"%@\",%d,%@);", @"cordova.require('org.apache.cordova.media.Media').onStatus", mediaId, MEDIA_ERROR, [self createMediaErrorWithCode:MEDIA_ERR_DECODE message:nil]];
    }

    [self.commandDelegate evalJs:jsString];
}

Media.js -modify:add: Media.MEDIA_END_INTERRUPT = 5；和"EndInterrupt“

// Media states
Media.MEDIA_NONE = 0;
Media.MEDIA_STARTING = 1;
Media.MEDIA_RUNNING = 2;
Media.MEDIA_PAUSED = 3;
Media.MEDIA_STOPPED = 4;
Media.MEDIA_END_INTERRUPT = 5;
Media.MEDIA_MSG = ["None", "Starting", "Running", "Paused", "Stopped", "EndInterrupt"];

然后找到Media.onStatus =函数(id，msgType，value) {并在Media.MEDIA_STATE :Media.MEDIA_STATE中添加一个条件.

 if(value == Media.MEDIA_END_INTERRUPT) {
     //do whatever you want
 }

Answer 3

我修复了媒体插件本身的问题，使用getCurrentPosition方法，我能够检测到流是否被电话或语音邮件入侵。然后停下来，并再次rePlay音频。我希望这能帮助一个我花了很长时间的人让我的媒体插件和shoutcast一起工作。

​

var mediaplayer = new Media(streamingUrl, mediaSuccess, mediaFail, mediaState);
mediaplayer.play({playAudioWhenScreenIsLocked :true});

var prevPos = 0;
        var mediaTimer = setInterval(function () {
            // get media position
            mediaplayer.getCurrentPosition(
                // success callback
                function (currentposition) {
                    if (currentposition > prevPos) {                        
                        prevPos = currentposition;                        
                    } else if (currentposition === prevPos) {                   
                        stop();
                        play();
                    } else {
                        console.log("can't get pos");
                    }
                },
                // error callback
                function (e) {
                    alert+("Error getting pos=" + e);
                }
            );
        }, 5000);

​