Question

在我的应用程序中，我使用MediaRecorder记录并保存文件。然后，当发送通知时，我想播放录制的音频文件。当我仅将声音设置为文件位置URI时，应用程序崩溃。

这是录音机，当我用MediaPlayer播放时，它的工作原理和声音听起来很棒（此代码适用于显示文件的保存位置）：

//the filename is unique every time I record, but for purposes online
//it has been simplified.
_audioFilename = f.getAbsolutePath() + "/voice.3gp";
mRecorder = new MediaRecorder();
mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
mRecorder.setAudioEncodingBitRate(133333);
mRecorder.setAudioSamplingRate(44100);
mRecorder.setOutputFile(_audioFilename);
mRecorder.setMaxDuration(10000);

然后在调用通知时：

//Here I get the filename and prefix it with file://
//I have also tried prefixing it with content://
Uri audioUri = Uri.parse("file://" + task.getAudio());


//Create the notification channel for newer build SDKs.
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        /* create a MyNotification channel */
        AudioAttributes audioAtts = new AudioAttributes.Builder()
                .setContentType(AudioAttributes.CONTENT_TYPE_SPEECH)
                .setUsage(AudioAttributes.USAGE_NOTIFICATION)
                .build();
        String channelId = "myNotification";
        CharSequence channelName = "Some Channel";
        int importance = NotificationManager.IMPORTANCE_HIGH;
        NotificationChannel notificationChannel = new NotificationChannel(channelId, channelName, importance);
        notificationChannel.enableLights(true);
        notificationChannel.setLightColor(Color.BLUE);
        notificationChannel.enableVibration(true);
        notificationChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
        notificationChannel.setSound(audioUri, audioAtts);
        notifManager.createNotificationChannel(notificationChannel);
    }


//here I build the notification and add the sound in case the SDK is older.
nb = new NotificationCompat.Builder(c, "myNotification")
           .setLargeIcon(BitmapFactory.decodeResource(c.getResources(),
                    R.mipmap.ic_launcher))
            .setSmallIcon(R.mipmap.proxi_icon_round)
            .setContentTitle("ProxiAlert: You are near "+task.getTask()+ " at " + task.getAddress())
           .setContentText("Task Description: "+task.getDescription())
            .setStyle(new NotificationCompat.BigTextStyle()
               .bigText("Task Description: "+task.getDescription()))
            .setPriority(NotificationCompat.PRIORITY_DEFAULT)
            .setVibrate(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400})      
            //program crashes here with the FileUriExposedException
            .setSound(audioUri);

对此有什么解决方案？我是否需要将通知声音另存为铃声？为了通知可以访问该文件，必须将文件存储在其他位置吗？还是有其他解决方法（除了使用MediaPlayer之外）？

将通知声音设置为用户录制的文件？ android.os.FileUriExposedException

0 个答案: