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

private void setXlabels(List<String> labelList)
{
    int valuesSelectedItemPos = cache.getValuesSpinner().getSelectedItemPosition();
    String[] labels = new String[ labelList.size() ];
    labelList.toArray(labels);

    PFAXAxisLabels xFormatter = new PFAXAxisLabels(labels);
    chart.setMarkerView(new PFAMarkerView(context, xFormatter, valuesSelectedItemPos, cache.getNumberScale()));

    XAxis xAxis = chart.getXAxis();
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setDrawGridLines(false);
    xAxis.setGranularity(1f);
    xAxis.setLabelCount(5);
    xAxis.setValueFormatter(xFormatter);
}
 

public static void setupXAxis(XAxis x,
                              List<DetailedWeatherForecast> weatherForecastList,
                              int textColorId,
                              Float textSize,
                              AppPreference.GraphGridColors gridColor,
                              Locale locale) {
    x.removeAllLimitLines();
    Map<Integer, Long> hourIndexes = new HashMap<>();

    int lastDayOflimitLine = 0;
    for (int i = 0; i < weatherForecastList.size(); i++) {
        hourIndexes.put(i, weatherForecastList.get(i).getDateTime());
        Calendar cal = Calendar.getInstance();
        cal.setTimeInMillis(weatherForecastList.get(i).getDateTime() * 1000);
        if (cal.get(Calendar.DAY_OF_YEAR) != lastDayOflimitLine) {
            Calendar calOfPreviousRecord = Calendar.getInstance();
            int previousRecordHour = 24;
            if (i > 0) {
                calOfPreviousRecord.setTimeInMillis(weatherForecastList.get(i - 1).getDateTime() * 1000);
                previousRecordHour = calOfPreviousRecord.get(Calendar.HOUR_OF_DAY);
            }
            int currentHour = cal.get(Calendar.HOUR_OF_DAY);
            float timeSpan = (24 - previousRecordHour) + currentHour;
            float dayLine = currentHour / timeSpan;
            float midnight = i - dayLine;
            float hour6 = midnight + (6 / timeSpan);
            float hour12 = midnight + (12 / timeSpan);
            float hour18 = midnight + (18 / timeSpan);
            LimitLine limitLine = new LimitLine(midnight);
            limitLine.setLineColor(gridColor.getMainGridColor());
            limitLine.setLineWidth(0.5f);
            x.addLimitLine(limitLine);
            /*LimitLine limitLine6 = new LimitLine(hour6, "");
            limitLine6.setLineColor(Color.LTGRAY);
            limitLine6.setLineWidth(0.5f);
            x.addLimitLine(limitLine6);*/
            LimitLine limitLine12 = new LimitLine(hour12);
            limitLine12.setLineColor(gridColor.getSecondaryGridColor());
            limitLine12.setLineWidth(0.5f);
            x.addLimitLine(limitLine12);
            /*LimitLine limitLine18 = new LimitLine(hour18, "");
            limitLine18.setLineColor(Color.LTGRAY);
            limitLine18.setLineWidth(0.5f);
            x.addLimitLine(limitLine18);*/
            lastDayOflimitLine = cal.get(Calendar.DAY_OF_YEAR);
        }
    }

    x.setEnabled(true);
    x.setPosition(XAxis.XAxisPosition.BOTTOM);
    x.setDrawGridLines(false);
    x.setLabelCount(25, true);
    x.setTextColor(textColorId);
    x.setValueFormatter(new XAxisValueFormatter(hourIndexes, locale));
    x.setDrawLimitLinesBehindData(true);

    if (textSize != null) {
        x.setTextSize(textSize);
    }
}
 

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

    setTitle("BarChartActivity");

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

    chart.getDescription().setEnabled(false);

    // if more than 60 entries are displayed in the chart, no values will be
    // drawn
    chart.setMaxVisibleValueCount(60);

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

    chart.setDrawGridBackground(false);
    // chart.setDrawYLabels(false);

    ValueFormatter xAxisFormatter = new DayAxisValueFormatter(chart);

    XAxis xAxis = chart.getXAxis();
    xAxis.setPosition(XAxisPosition.BOTTOM);
    xAxis.setTypeface(tfLight);
    xAxis.setDrawGridLines(false);
    xAxis.setGranularity(1f); // only intervals of 1 day
    xAxis.setLabelCount(7);
    xAxis.setValueFormatter(xAxisFormatter);

    ValueFormatter custom = new MyValueFormatter("$");

    YAxis leftAxis = chart.getAxisLeft();
    leftAxis.setTypeface(tfLight);
    leftAxis.setLabelCount(8, false);
    leftAxis.setValueFormatter(custom);
    leftAxis.setPosition(YAxisLabelPosition.OUTSIDE_CHART);
    leftAxis.setSpaceTop(15f);
    leftAxis.setAxisMinimum(0f); // this replaces setStartAtZero(true)

    YAxis rightAxis = chart.getAxisRight();
    rightAxis.setDrawGridLines(false);
    rightAxis.setTypeface(tfLight);
    rightAxis.setLabelCount(8, false);
    rightAxis.setValueFormatter(custom);
    rightAxis.setSpaceTop(15f);
    rightAxis.setAxisMinimum(0f); // this replaces setStartAtZero(true)

    Legend l = chart.getLegend();
    l.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM);
    l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.LEFT);
    l.setOrientation(Legend.LegendOrientation.HORIZONTAL);
    l.setDrawInside(false);
    l.setForm(LegendForm.SQUARE);
    l.setFormSize(9f);
    l.setTextSize(11f);
    l.setXEntrySpace(4f);

    XYMarkerView mv = new XYMarkerView(this, xAxisFormatter);
    mv.setChartView(chart); // For bounds control
    chart.setMarker(mv); // Set the marker to the chart

    // setting data
    seekBarY.setProgress(50);
    seekBarX.setProgress(12);

    // chart.setDrawLegend(false);
}
 

@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_barchart_noseekbar);

    setTitle("BarChartPositiveNegative");

    chart = findViewById(R.id.chart1);
    chart.setBackgroundColor(Color.WHITE);
    chart.setExtraTopOffset(-30f);
    chart.setExtraBottomOffset(10f);
    chart.setExtraLeftOffset(70f);
    chart.setExtraRightOffset(70f);

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

    chart.getDescription().setEnabled(false);

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

    chart.setDrawGridBackground(false);

    XAxis xAxis = chart.getXAxis();
    xAxis.setPosition(XAxisPosition.BOTTOM);
    xAxis.setTypeface(tfRegular);
    xAxis.setDrawGridLines(false);
    xAxis.setDrawAxisLine(false);
    xAxis.setTextColor(Color.LTGRAY);
    xAxis.setTextSize(13f);
    xAxis.setLabelCount(5);
    xAxis.setCenterAxisLabels(true);
    xAxis.setGranularity(1f);

    YAxis left = chart.getAxisLeft();
    left.setDrawLabels(false);
    left.setSpaceTop(25f);
    left.setSpaceBottom(25f);
    left.setDrawAxisLine(false);
    left.setDrawGridLines(false);
    left.setDrawZeroLine(true); // draw a zero line
    left.setZeroLineColor(Color.GRAY);
    left.setZeroLineWidth(0.7f);
    chart.getAxisRight().setEnabled(false);
    chart.getLegend().setEnabled(false);

    // THIS IS THE ORIGINAL DATA YOU WANT TO PLOT
    final List<Data> data = new ArrayList<>();
    data.add(new Data(0f, -224.1f, "12-29"));
    data.add(new Data(1f, 238.5f, "12-30"));
    data.add(new Data(2f, 1280.1f, "12-31"));
    data.add(new Data(3f, -442.3f, "01-01"));
    data.add(new Data(4f, -2280.1f, "01-02"));

    xAxis.setValueFormatter(new ValueFormatter() {
        @Override
        public String getFormattedValue(float value) {
            return data.get(Math.min(Math.max((int) value, 0), data.size()-1)).xAxisValue;
        }
    });

    setData(data);
}
 

public void initDatas(List<HisData>... hisDatas) {
        // 设置标签数量，并让标签居中显示
        XAxis xAxis = mChartVolume.getXAxis();
        xAxis.setLabelCount(hisDatas.length + 1, true);
        xAxis.setAvoidFirstLastClipping(false);
        xAxis.setCenterAxisLabels(true);
        xAxis.setValueFormatter(new IAxisValueFormatter() {
            @Override
            public String getFormattedValue(float value, AxisBase axis) {
                value += 1; // 这里不设置+1会有bug
                if (mData.isEmpty()) {
                    return "";
                }
                if (value < 0) {
                    value = 0;
                }
                if (value < mData.size()) {
                    return DateUtils.formatDate(mData.get((int) value).getDate(), mDateFormat);
                }
                return "";
            }
        });
        mData.clear();
        ArrayList<ILineDataSet> sets = new ArrayList<>();
        ArrayList<IBarDataSet> barSets = new ArrayList<>();

        for (List<HisData> hisData : hisDatas) {
            hisData = DataUtils.calculateHisData(hisData);
            ArrayList<Entry> priceEntries = new ArrayList<>(INIT_COUNT);
            ArrayList<Entry> aveEntries = new ArrayList<>(INIT_COUNT);
            ArrayList<Entry> paddingEntries = new ArrayList<>(INIT_COUNT);
            ArrayList<BarEntry> barPaddingEntries = new ArrayList<>(INIT_COUNT);
            ArrayList<BarEntry> barEntries = new ArrayList<>(INIT_COUNT);

            for (int i = 0; i < hisData.size(); i++) {
                HisData t = hisData.get(i);
                priceEntries.add(new Entry(i + mData.size(), (float) t.getClose()));
                aveEntries.add(new Entry(i + mData.size(), (float) t.getAvePrice()));
                barEntries.add(new BarEntry(i + mData.size(), (float) t.getVol(), t));
            }
            if (!hisData.isEmpty() && hisData.size() < INIT_COUNT / hisDatas.length) {
                for (int i = hisData.size(); i < INIT_COUNT / hisDatas.length; i++) {
                    paddingEntries.add(new Entry(i, (float) hisData.get(hisData.size() - 1).getClose()));
                    barPaddingEntries.add(new BarEntry(i, (float) hisData.get(hisData.size() - 1).getClose()));
                }
            }
            sets.add(setLine(NORMAL_LINE_5DAY, priceEntries));
            sets.add(setLine(AVE_LINE, aveEntries));
            sets.add(setLine(INVISIABLE_LINE, paddingEntries));
            barSets.add(setBar(barEntries, NORMAL_LINE));
            barSets.add(setBar(barPaddingEntries, INVISIABLE_LINE));
            barSets.add(setBar(barPaddingEntries, INVISIABLE_LINE));
            mData.addAll(hisData);
        }

        LineData lineData = new LineData(sets);

        CombinedData combinedData = new CombinedData();
        combinedData.setData(lineData);
        mChartPrice.setData(combinedData);
        mChartPrice.setVisibleXRange(MAX_COUNT, MIN_COUNT);
        mChartPrice.notifyDataSetChanged();
//        mChartPrice.moveViewToX(combinedData.getEntryCount());
        moveToLast(mChartVolume);


        BarData barData = new BarData(barSets);
        barData.setBarWidth(0.75f);
        CombinedData combinedData2 = new CombinedData();
        combinedData2.setData(barData);
        mChartVolume.setData(combinedData2);
        mChartVolume.setVisibleXRange(MAX_COUNT, MIN_COUNT);
        mChartVolume.notifyDataSetChanged();
        mChartVolume.moveViewToX(combinedData2.getEntryCount());

        mChartPrice.getXAxis().setAxisMaximum(combinedData.getXMax() + 0.5f);
        mChartVolume.getXAxis().setAxisMaximum(mChartVolume.getData().getXMax() + 0.5f);

        mChartPrice.zoom(MAX_COUNT * 1f / INIT_COUNT, 0, 0, 0);
        mChartVolume.zoom(MAX_COUNT * 1f / INIT_COUNT, 0, 0, 0);

        setDescription(mChartVolume, "成交量 " + getLastData().getVol());
    }
 

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);

    }
 

private void initChart() {
    int colorHomeBg = getResources().getColor(android.R.color.transparent);
    int colorLine = getResources().getColor(R.color.common_divider);
    int colorText = getResources().getColor(R.color.text_grey_light);

    mChart.setDescription(null);
    mChart.setDrawGridBackground(true);
    mChart.setBackgroundColor(colorHomeBg);
    mChart.setGridBackgroundColor(colorHomeBg);
    mChart.setScaleYEnabled(false);
    mChart.setPinchZoom(true);

    mChart.setNoDataText(getString(R.string.main_activity_loading));
    mChart.setAutoScaleMinMaxEnabled(true);
    mChart.setDragEnabled(true);
    mChart.setDoubleTapToZoomEnabled(false);

    XAxis xAxis = mChart.getXAxis();
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setDrawGridLines(true);
    xAxis.setGridColor(colorLine);
    xAxis.setTextColor(colorText);
    xAxis.setLabelCount(3);
    //xAxis.setSpaceBetweenLabels(4);

    YAxis leftAxis = mChart.getAxisLeft();
    leftAxis.setLabelCount(4, false);
    leftAxis.setDrawGridLines(true);
    leftAxis.setDrawAxisLine(true);
    leftAxis.setGridColor(colorLine);
    leftAxis.setTextColor(colorText);

    YAxis rightAxis = mChart.getAxisRight();
    rightAxis.setTextSize(8);
    rightAxis.setLabelCount(5, false);
    rightAxis.setDrawGridLines(false);
    rightAxis.setDrawAxisLine(true);
    rightAxis.setGridColor(colorLine);
    rightAxis.setTextColor(colorText);
    rightAxis.setAxisMinimum(0);
}