Method filterSignal has a Cognitive Complexity of 23 (exceeds 5 allowed). Consider refactoring.

Open

    public static double[] filterSignal(ArrayList<Float> signal, double sampleRate , double cutoffFreq, double filterOrder, int filterType, double ripplePercent) {
        double[][] recursionCoefficients =   new double[22][2];
        // Generate double array for ease of coding
        double[] unfilteredSignal =   new double[signal.size()];
        for (int i=0; i<signal.size(); i++) {

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Method check has a Cognitive Complexity of 19 (exceeds 5 allowed). Consider refactoring.

Open

        private void check(int code, int value){
            long now = System.currentTimeMillis();
            int buttonEventKey;
            switch (code) {
                case KEY_DOWN: {

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Method filterSignal has 60 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public static double[] filterSignal(ArrayList<Float> signal, double sampleRate , double cutoffFreq, double filterOrder, int filterType, double ripplePercent) {
        double[][] recursionCoefficients =   new double[22][2];
        // Generate double array for ease of coding
        double[] unfilteredSignal =   new double[signal.size()];
        for (int i=0; i<signal.size(); i++) {

Method MakeFilterParameters has 44 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public static double[] MakeFilterParameters(double cutoffFraction, int filterType, double rippleP, double numberOfPoles, int iteration) {
        double rp   =   -Math.cos(Math.PI/(numberOfPoles*2)+(iteration-1)*(Math.PI/numberOfPoles));
        double ip   =   Math.sin(Math.PI/(numberOfPoles*2)+(iteration-1)*Math.PI/numberOfPoles);
        System.out.println("MakeFilterParameters: ripplP:");
        System.out.println("cutoffFraction  filterType  rippleP  numberOfPoles  iteration");

Method check has 44 lines of code (exceeds 25 allowed). Consider refactoring.

Open

        private void check(int code, int value){
            long now = System.currentTimeMillis();
            int buttonEventKey;
            switch (code) {
                case KEY_DOWN: {

Method setClickListeners has 29 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    private void setClickListeners(){
        for(Button btn : plusMinusBtns){
            btn.setOnClickListener(plusMinusBtnListener);
            btn.setOnLongClickListener(plusMinusBtnLongListener);
        }

Method filterSignal has 6 arguments (exceeds 4 allowed). Consider refactoring.

Open

    public static double[] filterSignal(ArrayList<Float> signal, double sampleRate , double cutoffFreq, double filterOrder, int filterType, double ripplePercent) {

Method MakeFilterParameters has 5 arguments (exceeds 4 allowed). Consider refactoring.

Open

    public static double[] MakeFilterParameters(double cutoffFraction, int filterType, double rippleP, double numberOfPoles, int iteration) {

Method getInverted has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

    private int getInverted(int key){
        if(isSingleKey())
            key = key == KEY_UP ? KEY_SELECT : KEY_UP;
        else if (isInverted && key != KEY_SELECT)
            key = key == KEY_UP ? KEY_DOWN : KEY_UP;

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Method vibrate has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

    public static void vibrate(int time, Context context, boolean sound){
        if(sound && soundEnabled(context)) {
            MediaPlayer player = MediaPlayer.create(context, R.raw.beep);
            player.start();
            player.setOnCompletionListener(mediaPlayer -> {

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Method getKey has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

    public int getKey(){
        int finalKey = -5; //If nothing changed return -5 to not trigger anything
        if(isSingleKey()){
            if(isLongPress())
                finalKey = KEY_UP;

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Method registerListener has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    public void registerListener(Context context) {
        if(Prefs.getBoolean(Constants.KEY_HRTOGGLE, true)) {
            SaveWorkout.startWorkout();
            //Register listener taking into account experimental sensor
            if (!prevListening) {

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Method run has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

        public void run(){
            try {
                FileInputStream fileInputStream = new FileInputStream(new File(FILE_PATH));

                while (true) {

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Method onSensorChanged has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    @Override
    public void onSensorChanged(SensorEvent event) {
        float thisValue = event.values[0] / 100;
        if(!(thisValue >= 220 || thisValue <= 40))
            allHr.add(thisValue); //Add just great values for a more accurate result

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Method getValues has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    public static int[] getValues(int[] data, boolean longClick, Context context){
        int sets = data[0]; //data -> 0 = sets, 1 = work, 2 = rest, 3 = res
        int workTime = data[1];
        int restTime = data[2];
        if (data[3] == R.id.plus1) {

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