HarmonyOS鸿蒙Next中后台任务在线会议后台播放录制

HarmonyOS鸿蒙Next中后台任务在线会议后台播放录制

问题描述

我在实现开启和关闭后台任务时，使用了以下代码：

开启后台任务

startContinuousTask() {
    try {
        let wantAgentInfo: wantAgent.WantAgentInfo = {
            wants: [
                {
                    bundleName: "cn.comein.app_ohos",
                    abilityName: this.ability!.context.abilityInfo.name,
                }
            ],
            actionType: wantAgent.OperationType.START_ABILITY,
            requestCode: 0,
            actionFlags: [wantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
        };

        wantAgent.getWantAgent(wantAgentInfo).then((wantAgentObj: WantAgent) => {
            backgroundTaskManager.startBackgroundRunning(this.ability!.context, backgroundTaskManager.BackgroundMode.AUDIO_PLAYBACK, wantAgentObj).then(() => {
                console.info(`Succeeded in operationing startBackgroundRunning.`);
            }).catch((err: BusinessError) => {
                console.error(`Failed to operation startBackgroundRunning. Code is ${err.code}, message is ${err.message}`);
            });
        }).catch((err: BusinessError) => {
            console.error(`Failed to get WantAgent ${wantAgentInfo}, Code is ${err.code}, message is ${err.message}`);
        });
    } catch (err) {
        console.error(`Failed to get startContinuousTask Code is ${err.code}, message is ${err.message}`);
    }
}

关闭后台任务

stopContinuousTask() {
    try {
        backgroundTaskManager.stopBackgroundRunning(this.ability!.context).then(() => {
            console.info(`Succeeded in operationing stopBackgroundRunning.`);
        }).catch((err: BusinessError) => {
            console.error(`Failed to operation stopBackgroundRunning. Code is ${err.code}, message is ${err.message}`);
        });
    } catch (err) {
        console.error(`Failed to get stopContinuousTask Code is ${err.code}, message is ${err.message}`);
    }
}

遇到的问题

• 我开启后台任务后，切换到后台时音频就暂停了。
• 切换回前台时音频也不会恢复。
• 如果不启动后台任务，切换到前台时音频会恢复。

期望的行为

希望在切换到后台后，音频能够持续播放，并在切换回前台时自动恢复。