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AudioFlinger could not create record track, status: -1 Error creating AudioRecord instance: initialization check failed with status -1

I am getting this error when i try to run the code at android 6.0 device

AudioFlinger could not create record track, status: -1 Error creating AudioRecord instance: initialization check failed with status -1.

I have this code which works well on lower version device

private void startRecording()
    bufferSize = AudioRecord.getMinBufferSize(11025,
        AudioFormat.CHANNEL_CONFIGURATION_MONO,
        AudioFormat.ENCODING_PCM_16BIT);
    recorder = new AudioRecord(MediaRecorder.AudioSource.MIC,
        11025, AudioFormat.CHANNEL_CONFIGURATION_MONO,
        RECORDER_AUDIO_ENCODING, 1024);
    int i = recorder.getState();
    if (i==1)
        recorder.startRecording();
        ShowToast("Recording started successfully");
    isRecording = true;
    recordingThread = new Thread(new Runnable()
        @Override
        public void run() 
            writeAudioDataToFile();
    }, "AudioRecorder Thread");
    recordingThread.start();
I assume you have already set the <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.INTERNET" />
 <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" /> permissions in manifest.xml
On Android versions > 6.0 audio is considered a "dangerous" permission, so you also need to ask permission at runtime by adding code. Instructions on that are here:
https://developer.android.com/training/permissions/requesting.html
        
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