Java Code Examples for com.github.mikephil.charting.charts.BarChart#setData()

@Override
public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.frag_simple_bar, container, false);

    // create a new chart object
    chart = new BarChart(getActivity());
    chart.getDescription().setEnabled(false);
    chart.setOnChartGestureListener(this);

    MyMarkerView mv = new MyMarkerView(getActivity(), R.layout.custom_marker_view);
    mv.setChartView(chart); // For bounds control
    chart.setMarker(mv);

    chart.setDrawGridBackground(false);
    chart.setDrawBarShadow(false);

    Typeface tf = Typeface.createFromAsset(context.getAssets(), "OpenSans-Light.ttf");

    chart.setData(generateBarData(1, 20000, 12));

    Legend l = chart.getLegend();
    l.setTypeface(tf);

    YAxis leftAxis = chart.getAxisLeft();
    leftAxis.setTypeface(tf);
    leftAxis.setAxisMinimum(0f); // this replaces setStartAtZero(true)

    chart.getAxisRight().setEnabled(false);

    XAxis xAxis = chart.getXAxis();
    xAxis.setEnabled(false);

    // programmatically add the chart
    FrameLayout parent = v.findViewById(R.id.parentLayout);
    parent.addView(chart);

    return v;
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.frag_simple_bar, container, false);
    
    // create a new chart object
    mChart = new BarChart(getActivity());
    mChart.setDescription("");
    mChart.setOnChartGestureListener(this);
    
    MyMarkerView mv = new MyMarkerView(getActivity(), R.layout.custom_marker_view);

    mChart.setMarkerView(mv);

    mChart.setDrawGridBackground(false);
    mChart.setDrawBarShadow(false);
    
    Typeface tf = Typeface.createFromAsset(getActivity().getAssets(),"OpenSans-Light.ttf");
    
    mChart.setData(generateBarData(1, 20000, 12));
    
    Legend l = mChart.getLegend();
    l.setTypeface(tf);
    
    YAxis leftAxis = mChart.getAxisLeft();
    leftAxis.setTypeface(tf);
    leftAxis.setAxisMinValue(0f); // this replaces setStartAtZero(true)

    mChart.getAxisRight().setEnabled(false);
    
    XAxis xAxis = mChart.getXAxis();
    xAxis.setEnabled(false);
    
    // programatically add the chart
    FrameLayout parent = (FrameLayout) v.findViewById(R.id.parentLayout);
    parent.addView(mChart);
    
    return v;
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_chart);
    BarChart chart = (BarChart) findViewById(R.id.chart);

    BarData data = new BarData();
    chart.setData(data);
    chart.setDescription("My Chart");
    chart.animateXY(2000, 2000);
    chart.invalidate();
}
 

private void updateSpectrumGUI() {


        ArrayList<String> xVals = new ArrayList<String>();
        ArrayList<BarEntry> yVals1 = new ArrayList<BarEntry>();
        double[] freqLabels = measurementService.getAudioProcess().getRealtimeCenterFrequency();
        float[] freqValues = measurementService.getAudioProcess().getThirdOctaveFrequencySPL();
        for(int idfreq =0; idfreq < freqLabels.length; idfreq++) {
            xVals.add(Spectrogram.formatFrequency((int)freqLabels[idfreq]));
            // Sum values
            // Compute frequency range covered by frequency
            yVals1.add(new BarEntry(new float[] {freqValues[idfreq]}, idfreq));
        }

        BarDataSet set1 = new BarDataSet(yVals1, "DataSet");
        set1.setColor(Color.rgb(102, 178, 255));
        set1.setStackLabels(new String[]{
                "SL"
        });

        ArrayList<IBarDataSet> dataSets = new ArrayList<IBarDataSet>();
        dataSets.add(set1);

        BarData data = new BarData(xVals, dataSets);
        data.setValueTextSize(10f);

        BarChart sChart = getSpectrum();
        if(sChart != null){
            sChart.setData(data);
            sChart.setPadding(0, 0, 0, 0);
            sChart.setViewPortOffsets(0,0,0,0);
            sChart.invalidate(); // refresh
        }
    }
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // Load the model and labels.
    try {
        classifier = new DigitClassifierModel(this);
    } catch (IOException e) {
        Log.e(TAG, "Failed to initialize an image classifier.", e);
    }
    //startBackgroundThread();

    setContentView(R.layout.activity_main);
    paintView = (FreeHandView) findViewById(R.id.paintView);
    DisplayMetrics metrics = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(metrics);


    BarChart barChart = (BarChart) findViewById(R.id.barChart);
    barChart.animateY(3000);
    barChart.getXAxis().setEnabled(true);
    barChart.getAxisRight().setEnabled(false);
    barChart.getAxisLeft().setAxisMinimum(0.0f); // start at zero
    barChart.getAxisLeft().setAxisMaximum(1.0f); // the axis maximum is 100
    barChart.getDescription().setEnabled(false);
    barChart.getLegend().setEnabled(false);

    // the labels that should be drawn on the XAxis
    final String[] barLabels = new String[]{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"};

    IAxisValueFormatter formatter = new IAxisValueFormatter() {

        @Override
        public String getFormattedValue(float value, AxisBase axis) {
            return barLabels[(int) value];
        }
    };

    barChart.getXAxis().setGranularity(0f); // minimum axis-step (interval) is 1
    barChart.getXAxis().setValueFormatter(formatter);
    barChart.getXAxis().setPosition(XAxis.XAxisPosition.BOTTOM);
    barChart.getXAxis().setTextSize(5f);

    BARENTRY = new ArrayList<>();
    initializeBARENTRY();

    Bardataset = new BarDataSet(BARENTRY, "project");

    BARDATA = new BarData(Bardataset);
    barChart.setData(BARDATA);


    paintView.init(metrics, classifier, barChart);


    Button resetButton = (Button) findViewById(R.id.resetButton);
    resetButton.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            paintView.clear();
        }
    });

}
 

public HistogramChart(Context context, AttributeSet attrs) {
    super(context, attrs);
    inflate(getContext(), R.layout.histogram, this);

    barChart = (BarChart) findViewById(R.id.bar_chart);
    findViewById(R.id.button_close_bar_chart).setOnClickListener(this);

    final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.HistogramChart);
    final String descString;
    final int numDataSets;
    final float binWidth;
    try {
        descString = a.getString(R.styleable.HistogramChart_description);
        numDataSets = a.getInteger(R.styleable.HistogramChart_numDataSets, 1);
        binWidth = a.getFloat(R.styleable.HistogramChart_binWidth, 5f);
    } finally {
        a.recycle();
    }

    ArrayList<IBarDataSet> dataSets = new ArrayList<>(numDataSets);
    for (int i = 0; i < numDataSets; i++) {
        final BarDataSet dataSet = new BarDataSet(new ArrayList<BarEntry>(), "");
        dataSet.setColor(ColorTemplate.MATERIAL_COLORS[i]);
        dataSets.add(dataSet);
    }

    BarData barData = new BarData(dataSets);
    barData.setBarWidth((1f - GROUP_SPACE)/numDataSets);
    barChart.setData(barData);
    histogramData = new HistogramData(numDataSets, binWidth);
    groupBars(barData);
    final Description desc = new Description();
    desc.setText(descString);
    desc.setTextSize(12f);
    barChart.setDescription(desc);

    XAxis xAxis = barChart.getXAxis();
    xAxis.setGranularityEnabled(true);
    xAxis.setGranularity(1);
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setValueFormatter(new IAxisValueFormatter() {
        DecimalFormat df = new DecimalFormat("#.##");

        @Override
        public String getFormattedValue(float value, AxisBase axis) {
            return df.format(histogramData.getDisplayValue(value));
        }
    });

    barChart.setFitBars(true);
    barChart.invalidate();
}
 

private void updateBarChart() {
    BarChart barChart = getBarChart();
    if(barChart == null) {
        return;
    }
    if(freqLeqStats.size() <= 2) {
        return;
    }
    double[] pearsons = computePearson();
    if(pearsons == null) {
        return;
    }

    float YMin = Float.MAX_VALUE;
    float YMax = Float.MIN_VALUE;

    ArrayList<IBarDataSet> dataSets = new ArrayList<IBarDataSet>();

    // Read all white noise values for indexing before usage
    ArrayList<BarEntry> yMeasure = new ArrayList<BarEntry>();
    int idfreq = 0;
    for (double value : pearsons) {
        YMax = Math.max(YMax, (float)value);
        YMin = Math.min(YMin, (float)value);
        yMeasure.add(new BarEntry((float)value, idfreq++));
    }
    BarDataSet freqSet = new BarDataSet(yMeasure, "Pearson's correlation");
    freqSet.setColor(ColorTemplate.COLORFUL_COLORS[0]);
    freqSet.setValueTextColor(Color.WHITE);
    freqSet.setDrawValues(true);
    dataSets.add(freqSet);


    ArrayList<String> xVals = new ArrayList<String>();
    double[] freqs = FFTSignalProcessing.computeFFTCenterFrequency(AudioProcess.REALTIME_SAMPLE_RATE_LIMITATION);
    for (double freqValue : freqs) {
        xVals.add(Spectrogram.formatFrequency((int)freqValue));
    }

    // create a data object with the datasets
    BarData data = new BarData(xVals, dataSets);
    barChart.setData(data);
    YAxis yl = barChart.getAxisLeft();
    yl.setAxisMinValue(YMin - 0.1f);
    yl.setAxisMaxValue(YMax + 0.1f);

    barChart.invalidate();
}