首页 > 解决方案 > 默认情况下,音量按钮不使用 cast-sdk v3 从 android 发件人应用程序控制投射设备音量

问题描述

我在我的 android sender 应用程序中使用 cast SDK v3,它运行良好,但默认情况下音量控制按钮不控制投射设备的音量。我必须扩大音量控制弹出窗口并调整投射设备音量。当投射会话恢复时,它直接控制设备的音量。但是一旦播放状态改变,它就会失去焦点。

private class CastSessionManagerListener implements SessionManagerListener<CastSession> {

    @Override
    public void onSessionStarting(CastSession session) {
    }

    @Override
    public void onSessionStarted(CastSession session, String sessionId) {
        // In case we are casting, send the device name as an extra on MediaSession metadata.
        // Now we can switch to CastPlayback
        EventHelper.eventFeatureClicked(EventHelper.FEATURE_CHROME_CAST);
        Playback playback = new CastPlayback(MusicService.this);
        mMediaRouter.setMediaSessionCompat(mSession);
        mPlaybackManager.switchToPlayback(playback, true);
    }

    @Override
    public void onSessionStartFailed(CastSession session, int error) {

    }

    @Override
    public void onSessionEnding(CastSession session) {
        // This is our final chance to update the underlying stream position
        // In onSessionEnded(), the underlying CastPlayback#mRemoteMediaClient
        // is disconnected and hence we update our local value of stream position
        // to the latest position.
        mPlaybackManager.getPlayback().updateLastKnownStreamPosition();
    }

    @Override
    public void onSessionEnded(CastSession session, int error) {
        Playback playback = new LocalPlayback(MusicService.this);
        mMediaRouter.setMediaSessionCompat(null);
        mPlaybackManager.switchToPlayback(playback, true);
    }

    @Override
    public void onSessionResuming(CastSession session, String sessionId) {
    }

    @Override
    public void onSessionResumed(CastSession session, boolean wasSuspended) {
        EventHelper.eventFeatureClicked(EventHelper.FEATURE_CHROME_CAST);
        Playback playback = new CastPlayback(MusicService.this);
        mMediaRouter.setMediaSessionCompat(mSession);
        mPlaybackManager.switchToPlayback(playback, true);
    }

    @Override
    public void onSessionResumeFailed(CastSession session, int error) {
    }

    @Override
    public void onSessionSuspended(CastSession session, int reason) {
    }
}

标签: androidchromecastgoogle-castgoogle-cast-sdk

解决方案


我相信如果您的MediaSessionMediaSessionCompat设置为活动状态,就会发生这种情况。投射或远程播放时,应使其处于非活动状态。


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