Java Code Examples for com.github.mikephil.charting.components.XAxis#setAxisMinimum()

/**
 * Initialize chart for the first time
 * @param totalBytes maximum value for x-axis
 */
private void chartInit(long totalBytes) {
    mLineChart.setBackgroundColor(accentColor);
    mLineChart.getLegend().setEnabled(false);

    // no description text
    mLineChart.getDescription().setEnabled(false);

    XAxis xAxis = mLineChart.getXAxis();
    YAxis yAxisLeft = mLineChart.getAxisLeft();
    mLineChart.getAxisRight().setEnabled(false);
    yAxisLeft.setTextColor(Color.WHITE);
    yAxisLeft.setAxisLineColor(Color.TRANSPARENT);
    yAxisLeft.setTypeface(Typeface.DEFAULT_BOLD);
    yAxisLeft.setGridColor(Utils.getColor(getContext(), R.color.white_translucent));

    xAxis.setAxisMaximum(Futils.readableFileSizeFloat(totalBytes));
    xAxis.setAxisMinimum(0.0f);
    xAxis.setAxisLineColor(Color.TRANSPARENT);
    xAxis.setGridColor(Color.TRANSPARENT);
    xAxis.setTextColor(Color.WHITE);
    xAxis.setTypeface(Typeface.DEFAULT_BOLD);
    mLineChart.setData(mLineData);
    mLineChart.invalidate();
}
 

private void setXAxis(int epochs) {
    final XAxis axis = mChart.getXAxis();
    axis.setEnabled(true);
    axis.setAxisMinimum(1F);
    axis.setAxisMaximum(epochs);
    axis.setPosition(XAxis.XAxisPosition.BOTTOM);
    axis.setDrawAxisLine(true);
    axis.setDrawGridLines(false);
    axis.setGranularity(1F);
    axis.setAvoidFirstLastClipping(true);

    mChart.getAxisRight().setDrawAxisLine(true);
}
 

private void setupXAxis(BarLineChartBase chart, IAxisValueFormatter formatter) {
    XAxis x = chart.getXAxis();
    x.setGranularity(1.0f);
    x.setDrawGridLines(false);
    x.setPosition(XAxis.XAxisPosition.BOTTOM);
    x.setDrawAxisLine(false);
    x.setCenterAxisLabels(true);
    x.setAxisMinimum(2.0f);
    x.setAxisMaximum(5.0f);
    x.setValueFormatter(formatter);
}
 

/**
 * Configure styles of weather charts.
 *
 * @param entries   chart data.
 * @param formatter value formatter.
 * @param minVal    min value to show.
 * @param maxVal    max value to show.
 * @return chart formatted.
 */
private LineDataSet configureWeatherChart(
        LineChart chart, int chartName, int colorLineTempChart, int colorFillTempChart,
        List<Entry> entries, IAxisValueFormatter formatter, double minVal, double maxVal) {
    LineDataSet lineDataSet = new LineDataSet(entries, getString(chartName));
    lineDataSet.setMode(LineDataSet.Mode.HORIZONTAL_BEZIER);
    lineDataSet.setDrawValues(false);
    lineDataSet.setValueTextSize(10f);
    lineDataSet.setDrawCircles(false);
    lineDataSet.setLineWidth(1.8f);
    lineDataSet.setColor(ContextCompat.getColor(getContext(), colorLineTempChart));
    lineDataSet.setLineWidth(2f);
    lineDataSet.setDrawFilled(true);
    lineDataSet.setFillColor(ContextCompat.getColor(getContext(), colorFillTempChart));
    lineDataSet.setFillAlpha(255);
    // General setup
    chart.setDrawGridBackground(false);
    chart.setDrawBorders(false);
    chart.setViewPortOffsets(0, 0, 0, 0);
    chart.getDescription().setEnabled(false);
    chart.getLegend().setEnabled(false);
    chart.setTouchEnabled(false);
    // X axis setup
    XAxis xAxis = chart.getXAxis();
    xAxis.setEnabled(false);
    xAxis.setAxisMinimum(0);
    xAxis.setAxisMaximum(lastTimestamp);
    // Y axis setup
    YAxis leftAxis = chart.getAxisLeft();
    leftAxis.setEnabled(false);
    leftAxis.setAxisMaximum((float) (maxVal));
    leftAxis.setAxisMinimum((float) (minVal));
    YAxis rightAxis = chart.getAxisRight();
    rightAxis.setAxisMaximum((float) (maxVal));
    rightAxis.setAxisMinimum((float) (minVal));
    rightAxis.setPosition(YAxis.YAxisLabelPosition.INSIDE_CHART);
    rightAxis.setValueFormatter(formatter);
    return lineDataSet;
}
 

private void recalculateXAxis() {
    final XAxis xAxis = barChart.getXAxis();
    xAxis.setAxisMinimum(0);
    xAxis.setAxisMaximum(histogramData.getNumBins());
    barChart.notifyDataSetChanged();
    barChart.invalidate();
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_age_distribution);

    setTitle("StackedBarActivityNegative");

    chart = findViewById(R.id.chart1);
    chart.setOnChartValueSelectedListener(this);
    chart.setDrawGridBackground(false);
    chart.getDescription().setEnabled(false);

    // scaling can now only be done on x- and y-axis separately
    chart.setPinchZoom(false);

    chart.setDrawBarShadow(false);
    chart.setDrawValueAboveBar(true);
    chart.setHighlightFullBarEnabled(false);

    chart.getAxisLeft().setEnabled(false);
    chart.getAxisRight().setAxisMaximum(25f);
    chart.getAxisRight().setAxisMinimum(-25f);
    chart.getAxisRight().setDrawGridLines(false);
    chart.getAxisRight().setDrawZeroLine(true);
    chart.getAxisRight().setLabelCount(7, false);
    chart.getAxisRight().setValueFormatter(new CustomFormatter());
    chart.getAxisRight().setTextSize(9f);

    XAxis xAxis = chart.getXAxis();
    xAxis.setPosition(XAxisPosition.BOTH_SIDED);
    xAxis.setDrawGridLines(false);
    xAxis.setDrawAxisLine(false);
    xAxis.setTextSize(9f);
    xAxis.setAxisMinimum(0f);
    xAxis.setAxisMaximum(110f);
    xAxis.setCenterAxisLabels(true);
    xAxis.setLabelCount(12);
    xAxis.setGranularity(10f);
    xAxis.setValueFormatter(new ValueFormatter() {

        private final DecimalFormat format = new DecimalFormat("###");

        @Override
        public String getFormattedValue(float value) {
            return format.format(value) + "-" + format.format(value + 10);
        }
    });

    Legend l = chart.getLegend();
    l.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM);
    l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT);
    l.setOrientation(Legend.LegendOrientation.HORIZONTAL);
    l.setDrawInside(false);
    l.setFormSize(8f);
    l.setFormToTextSpace(4f);
    l.setXEntrySpace(6f);

    // IMPORTANT: When using negative values in stacked bars, always make sure the negative values are in the array first
    ArrayList<BarEntry> values = new ArrayList<>();
    values.add(new BarEntry(5, new float[]{ -10, 10 }));
    values.add(new BarEntry(15, new float[]{ -12, 13 }));
    values.add(new BarEntry(25, new float[]{ -15, 15 }));
    values.add(new BarEntry(35, new float[]{ -17, 17 }));
    values.add(new BarEntry(45, new float[]{ -19, 20 }));
    values.add(new BarEntry(45, new float[]{ -19, 20 }, getResources().getDrawable(R.drawable.star)));
    values.add(new BarEntry(55, new float[]{ -19, 19 }));
    values.add(new BarEntry(65, new float[]{ -16, 16 }));
    values.add(new BarEntry(75, new float[]{ -13, 14 }));
    values.add(new BarEntry(85, new float[]{ -10, 11 }));
    values.add(new BarEntry(95, new float[]{ -5, 6 }));
    values.add(new BarEntry(105, new float[]{ -1, 2 }));

    BarDataSet set = new BarDataSet(values, "Age Distribution");
    set.setDrawIcons(false);
    set.setValueFormatter(new CustomFormatter());
    set.setValueTextSize(7f);
    set.setAxisDependency(YAxis.AxisDependency.RIGHT);
    set.setColors(Color.rgb(67,67,72), Color.rgb(124,181,236));
    set.setStackLabels(new String[]{
            "Men", "Women"
    });

    BarData data = new BarData(set);
    data.setBarWidth(8.5f);
    chart.setData(data);
    chart.invalidate();
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_combined);

    setTitle("CombinedChartActivity");

    chart = findViewById(R.id.chart1);
    chart.getDescription().setEnabled(false);
    chart.setBackgroundColor(Color.WHITE);
    chart.setDrawGridBackground(false);
    chart.setDrawBarShadow(false);
    chart.setHighlightFullBarEnabled(false);

    // draw bars behind lines
    chart.setDrawOrder(new DrawOrder[]{
            DrawOrder.BAR, DrawOrder.BUBBLE, DrawOrder.CANDLE, DrawOrder.LINE, DrawOrder.SCATTER
    });

    Legend l = chart.getLegend();
    l.setWordWrapEnabled(true);
    l.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM);
    l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.CENTER);
    l.setOrientation(Legend.LegendOrientation.HORIZONTAL);
    l.setDrawInside(false);

    YAxis rightAxis = chart.getAxisRight();
    rightAxis.setDrawGridLines(false);
    rightAxis.setAxisMinimum(0f); // this replaces setStartAtZero(true)

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

    XAxis xAxis = chart.getXAxis();
    xAxis.setPosition(XAxisPosition.BOTH_SIDED);
    xAxis.setAxisMinimum(0f);
    xAxis.setGranularity(1f);
    xAxis.setValueFormatter(new ValueFormatter() {
        @Override
        public String getFormattedValue(float value) {
            return months[(int) value % months.length];
        }
    });

    CombinedData data = new CombinedData();

    data.setData(generateLineData());
    data.setData(generateBarData());
    data.setData(generateBubbleData());
    data.setData(generateScatterData());
    data.setData(generateCandleData());
    data.setValueTypeface(tfLight);

    xAxis.setAxisMaximum(data.getXMax() + 0.25f);

    chart.setData(data);
    chart.invalidate();
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_linechart);

    setTitle("InvertedLineChartActivity");

    tvX = findViewById(R.id.tvXMax);
    tvY = findViewById(R.id.tvYMax);

    seekBarX = findViewById(R.id.seekBar1);
    seekBarY = findViewById(R.id.seekBar2);

    seekBarY.setOnSeekBarChangeListener(this);
    seekBarX.setOnSeekBarChangeListener(this);

    chart = findViewById(R.id.chart1);
    chart.setOnChartValueSelectedListener(this);
    chart.setDrawGridBackground(false);

    // no description text
    chart.getDescription().setEnabled(false);

    // enable touch gestures
    chart.setTouchEnabled(true);

    // enable scaling and dragging
    chart.setDragEnabled(true);
    chart.setScaleEnabled(true);

    // if disabled, scaling can be done on x- and y-axis separately
    chart.setPinchZoom(true);

    // set an alternative background color
    // chart.setBackgroundColor(Color.GRAY);

    // create a custom MarkerView (extend MarkerView) and specify the layout
    // to use for it
    MyMarkerView mv = new MyMarkerView(this, R.layout.custom_marker_view);
    mv.setChartView(chart); // For bounds control
    chart.setMarker(mv); // Set the marker to the chart

    XAxis xl = chart.getXAxis();
    xl.setAvoidFirstLastClipping(true);
    xl.setAxisMinimum(0f);

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

    YAxis rightAxis = chart.getAxisRight();
    rightAxis.setEnabled(false);

    // add data
    seekBarX.setProgress(25);
    seekBarY.setProgress(50);

    // // restrain the maximum scale-out factor
    // chart.setScaleMinima(3f, 3f);
    //
    // // center the view to a specific position inside the chart
    // chart.centerViewPort(10, 50);

    // get the legend (only possible after setting data)
    Legend l = chart.getLegend();

    // modify the legend ...
    l.setForm(LegendForm.LINE);

    // don't forget to refresh the drawing
    chart.invalidate();
}
 

protected void initBottomChart(AppCombinedChart chart) {
        chart.setScaleEnabled(true);
        chart.setDrawBorders(false);
        chart.setBorderWidth(1);
        chart.setDragEnabled(true);
        chart.setScaleYEnabled(false);
        chart.setAutoScaleMinMaxEnabled(true);
        chart.setDragDecelerationEnabled(false);
        chart.setHighlightPerDragEnabled(false);
        Legend lineChartLegend = chart.getLegend();
        lineChartLegend.setEnabled(false);


        XAxis xAxisVolume = chart.getXAxis();
        xAxisVolume.setDrawLabels(true);
        xAxisVolume.setDrawAxisLine(false);
        xAxisVolume.setDrawGridLines(false);
        xAxisVolume.setTextColor(mAxisColor);
        xAxisVolume.setPosition(XAxis.XAxisPosition.BOTTOM);
        xAxisVolume.setLabelCount(3, true);
        xAxisVolume.setAvoidFirstLastClipping(true);
        xAxisVolume.setAxisMinimum(-0.5f);

        xAxisVolume.setValueFormatter(new IAxisValueFormatter() {
            @Override
            public String getFormattedValue(float value, AxisBase axis) {
                if (mData.isEmpty()) {
                    return "";
                }
                if (value < 0) {
                    value = 0;
                }
                if (value < mData.size()) {
                    return DateUtils.formatDate(mData.get((int) value).getDate(), mDateFormat);
                }
                return "";
            }
        });

        YAxis axisLeftVolume = chart.getAxisLeft();
        axisLeftVolume.setDrawLabels(true);
        axisLeftVolume.setDrawGridLines(false);
        axisLeftVolume.setLabelCount(3, true);
        axisLeftVolume.setDrawAxisLine(false);
        axisLeftVolume.setTextColor(mAxisColor);
        axisLeftVolume.setSpaceTop(10);
        axisLeftVolume.setSpaceBottom(0);
        axisLeftVolume.setPosition(YAxis.YAxisLabelPosition.INSIDE_CHART);
        /*axisLeftVolume.setValueFormatter(new IAxisValueFormatter() {
            @Override
            public String getFormattedValue(float value, AxisBase axis) {
                String s;
                if (value > 10000) {
                    s = (int) (value / 10000) + "w";
                } else if (value > 1000) {
                    s = (int) (value / 1000) + "k";
                } else {
                    s = (int) value + "";
                }
                return String.format(Locale.getDefault(), "%1$5s", s);
            }
        });
*/
        Transformer leftYTransformer = chart.getRendererLeftYAxis().getTransformer();
        ColorContentYAxisRenderer leftColorContentYAxisRenderer = new ColorContentYAxisRenderer(chart.getViewPortHandler(), chart.getAxisLeft(), leftYTransformer);
        leftColorContentYAxisRenderer.setLabelInContent(true);
        leftColorContentYAxisRenderer.setUseDefaultLabelXOffset(false);
        chart.setRendererLeftYAxis(leftColorContentYAxisRenderer);

        //右边y
        YAxis axisRightVolume = chart.getAxisRight();
        axisRightVolume.setDrawLabels(false);
        axisRightVolume.setDrawGridLines(false);
        axisRightVolume.setDrawAxisLine(false);

    }