expo-av-当我向后浏览并重新打开屏幕时，出现“开始遇到错误：录制未开始”错误

问题描述

expo-av出现了奇怪的问题。我有录音屏幕，当我第一次打开屏幕时，它可以正常工作。当我返回并重新打开屏幕并尝试录制声音时，出现“开始遇到错误：录制未开始”错误。这是代码：

    @action async startRecording() {
    try {
        // If stills recording,do not start a new one
        if (this.props.store.chatStore.isDeviceRecording)
            return;

        await this._setAudioMode({
            allowsRecordingIOS: true
        });

        // Creating Audio Recording object
        const recording = new Audio.Recording();
        await recording.preparetoRecordAsync(Audio.RECORDING_OPTIONS_PRESET_HIGH_QUALITY);
        recording.setonRecordingStatusUpdate(this._recordingCallback);
        this.setRecording(recording);

        // Link Audio Recording object with storage
        await this.recording.startAsync().then((v) => {
            this.props.store.chatStore.setIsDeviceRecordingStarted(true);
        });
    } catch (error) {
        console.log(error);
    }
}
@action async cancelRecording() {
    try {
        if (this.recording) {
            await this.recording.stopAndUnloadAsync();
            this.recording.setonRecordingStatusUpdate(null);
            this.recording = null;
        }
        await this._setAudioMode({
            allowsRecordingIOS: false
        });
        this.props.store.chatStore.setValues({
            isDeviceRecordingStarted: false,isRecordingCancelled: false
        });
    } catch (e) {
        console.log(e);
    }
}
@action async stopRecording() {
    try {
        if (!this.recording)
            return;

        await this.recording.stopAndUnloadAsync();
        await this._setAudioMode({
            allowsRecordingIOS: false
        });
        if (!this.props.store.chatStore.isDeviceRecording) {
            const fileUrl = this.recording.getURI();
            this.recording.setonRecordingStatusUpdate(null);

            const status = await this.recording.getStatusAsync();
            this.recording = null;
            // Save audio message
            const uid = this.props.store.userStore.uid,chatMessage = new ChatMessage({
                    id: MiscHelper.getUUID(),type: CHAT_MESSAGE_TYPE.AUdio,status: CHAT_MESSAGE_STATUS.SENDING,creation_time: new Date(),audio: {
                        source: fileUrl,duration: status.durationMillis
                    },sender: {
                        id: uid,user_type: CHAT_SENDER_USER_TYPE.USER
                    }
                });
            this.props.store.chatStore.saveMessage(chatMessage);
            this.props.store.chatStore.setIsDeviceRecordingStarted(false);
        }    
    } catch (error) {
        console.log(error);
    }
}
async _setAudioMode({allowsRecordingIOS}) {
    try {
        await Audio.setAudioModeAsync({
            allowsRecordingIOS,interruptionModeIOS: Audio.INTERRUPTION_MODE_IOS_DO_NOT_MIX,playsInSilentModeIOS: true,shouldDuckAndroid: true,interruptionModeAndroid: Audio.INTERRUPTION_MODE_ANDROID_DO_NOT_MIX,playThroughEarpieceAndroid: false,staysActiveInBackground: true
        });
    } catch (e) {
        console.log(e);
    }
}

任何帮助将不胜感激。

解决方法

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