package org.havenapp.main.ui;
import android.Manifest;
import android.content.pm.PackageManager;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.os.Bundle;
import android.view.MenuItem;
import android.widget.TextView;
import com.maxproj.simplewaveform.SimpleWaveform;
import org.havenapp.main.PreferenceManager;
import org.havenapp.main.R;
import org.havenapp.main.sensors.media.MicSamplerTask;
import org.havenapp.main.sensors.media.MicrophoneTaskFactory;
import java.util.LinkedList;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import me.angrybyte.numberpicker.view.ActualNumberPicker;
public class MicrophoneConfigureActivity extends AppCompatActivity implements MicSamplerTask.MicListener {
private MicSamplerTask microphone;
private TextView mTextLevel;
private ActualNumberPicker mNumberTrigger;
private PreferenceManager mPrefManager;
private SimpleWaveformExtended mWaveform;
private LinkedList<Integer> mWaveAmpList;
private static final int MAX_SLIDER_VALUE = 120;
private double maxAmp = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_microphone_configure);
mPrefManager = new PreferenceManager(this.getApplicationContext());
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
setTitle("");
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mTextLevel = findViewById(R.id.text_display_level);
mNumberTrigger = findViewById(R.id.number_trigger_level);
mWaveform = findViewById(R.id.simplewaveform);
mWaveform.setMaxVal(100);
mNumberTrigger.setMinValue(0);
mNumberTrigger.setMaxValue(MAX_SLIDER_VALUE);
if (!mPrefManager.getMicrophoneSensitivity().equals(PreferenceManager.MEDIUM))
mNumberTrigger.setValue(Integer.parseInt(mPrefManager.getMicrophoneSensitivity()));
else
mNumberTrigger.setValue(60);
mNumberTrigger.setListener((oldValue, newValue) -> {
mWaveform.setThreshold(newValue);
mPrefManager.setMicrophoneSensitivity(newValue+"");
});
initWave();
startMic();
}
private void initWave ()
{
mWaveform.init();
mWaveAmpList = new LinkedList<>();
mWaveform.setDataList(mWaveAmpList);
//define bar gap
mWaveform.barGap = 30;
//define x-axis direction
mWaveform.modeDirection = SimpleWaveform.MODE_DIRECTION_RIGHT_LEFT;
//define if draw opposite pole when show bars
mWaveform.modeAmp = SimpleWaveform.MODE_AMP_ABSOLUTE;
//define if the unit is px or percent of the view's height
mWaveform.modeHeight = SimpleWaveform.MODE_HEIGHT_PERCENT;
//define where is the x-axis in y-axis
mWaveform.modeZero = SimpleWaveform.MODE_ZERO_CENTER;
//if show bars?
mWaveform.showBar = true;
mWaveform.setMaxVal(100);
//define how to show peaks outline
mWaveform.modePeak = SimpleWaveform.MODE_PEAK_ORIGIN;
//if show peaks outline?
mWaveform.showPeak = true;
//show x-axis
mWaveform.showXAxis = true;
Paint xAxisPencil = new Paint();
xAxisPencil.setStrokeWidth(1);
xAxisPencil.setColor(0x88ffffff);
mWaveform.xAxisPencil = xAxisPencil;
//define pencil to draw bar
Paint barPencilFirst = new Paint();
Paint barPencilSecond = new Paint();
Paint peakPencilFirst = new Paint();
Paint peakPencilSecond = new Paint();
barPencilFirst.setStrokeWidth(15);
barPencilFirst.setColor(getResources().getColor(R.color.colorAccent));
mWaveform.barPencilFirst = barPencilFirst;
barPencilFirst.setStrokeWidth(15);
barPencilSecond.setStrokeWidth(15);
barPencilSecond.setColor(getResources().getColor(R.color.colorPrimaryDark));
mWaveform.barPencilSecond = barPencilSecond;
//define pencil to draw peaks outline
peakPencilFirst.setStrokeWidth(5);
peakPencilFirst.setColor(getResources().getColor(R.color.colorAccent));
mWaveform.peakPencilFirst = peakPencilFirst;
peakPencilSecond.setStrokeWidth(5);
peakPencilSecond.setColor(getResources().getColor(R.color.colorPrimaryDark));
mWaveform.peakPencilSecond = peakPencilSecond;
mWaveform.firstPartNum = 0;
//define how to clear screen
mWaveform.clearScreenListener = new SimpleWaveform.ClearScreenListener() {
@Override
public void clearScreen(Canvas canvas) {
canvas.drawColor(Color.WHITE, PorterDuff.Mode.CLEAR);
}
};
//show...
mWaveform.refresh();
}
private void startMic () {
String permission = Manifest.permission.RECORD_AUDIO;
int requestCode = 999;
if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(this, permission)) {
//This is called if user has denied the permission before
//In this case I am just asking the permission again
ActivityCompat.requestPermissions(this, new String[]{permission}, requestCode);
} else {
ActivityCompat.requestPermissions(this, new String[]{permission}, requestCode);
}
} else {
try {
microphone = MicrophoneTaskFactory.makeSampler(this);
microphone.setMicListener(this);
microphone.execute();
} catch (MicrophoneTaskFactory.RecordLimitExceeded e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case 999:
startMic();
break;
}
}
@Override
protected void onDestroy() {
super.onDestroy();
if (microphone != null)
microphone.cancel(true);
}
@Override
public void onSignalReceived(short[] signal) {
/*
* We do and average of the 512 samples
*/
int total = 0;
int count = 0;
for (short peak : signal) {
//Log.i("MicrophoneFragment", "Sampled values are: "+peak);
if (peak != 0) {
total += Math.abs(peak);
count++;
}
}
// Log.i("MicrophoneFragment", "Total value: " + total);
int average = 0;
if (count > 0) average = total / count;
/*
* We compute a value in decibels
*/
double averageDB = 0.0;
if (average != 0) {
averageDB = 20 * Math.log10(Math.abs(average));
}
if (averageDB > maxAmp) {
maxAmp = averageDB + 5d; //add 5db buffer
mNumberTrigger.setValue((int) maxAmp);
mNumberTrigger.invalidate();
}
int perc = (int)((averageDB/120d)*100d)-10;
mWaveAmpList.addFirst(perc);
if (mWaveAmpList.size() > mWaveform.width / mWaveform.barGap + 2) {
mWaveAmpList.removeLast();
}
mWaveform.refresh();
mTextLevel.setText(getString(R.string.current_noise_base).concat(" ").concat(Integer.toString((int) averageDB)).concat("db"));
}
@Override
public void onMicError() {
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
finish();
break;
}
return true;
}
/**
* When user closes the activity
*/
@Override
public void onBackPressed() {
finish();
}
}
