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

@SuppressWarnings("deprecation")
private void chartXAxisStyling(XAxis xAxis) {
    xAxis.setPosition(XAxis.XAxisPosition.TOP);
    xAxis.setTextColor(getResources().getColor(R.color.traffic_chart_text_color_light));
    xAxis.setDrawAxisLine(true);
    xAxis.setDrawGridLines(false);
    xAxis.setCenterAxisLabels(true);
    xAxis.setValueFormatter(new AxisValueFormatter() {
        @Override
        public String getFormattedValue(float value, AxisBase axis) {
            return Utils.humanReadable((long) value);
        }

        @Override
        public int getDecimalDigits() {
            return 0;
        }
    });
}
 

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);
}
 

/**
 * Setup chart (axis, grid, etc.).
 *
 * @param lineChart      chart to setup.
 * @param data           chart with the data.
 * @param firstTimestamp seconds timestamp of the first record (used as initial reference).
 */
private void setupChart(LineChart lineChart, LineData data, long firstTimestamp) {
    // General setup
    lineChart.setDrawGridBackground(false);
    lineChart.setDrawBorders(false);
    lineChart.setViewPortOffsets(50, 0, 50, 50);
    lineChart.getDescription().setEnabled(false);
    lineChart.getLegend().setEnabled(false);
    lineChart.setTouchEnabled(false);
    lineChart.setNoDataText(context.getString(R.string.no_flight_act_data_available));
    // X axis setup
    IAxisValueFormatter xAxisFormatter = new HourAxisValueFormatter(firstTimestamp);
    XAxis xAxis = lineChart.getXAxis();
    xAxis.setValueFormatter(xAxisFormatter);
    xAxis.setDrawGridLines(false);
    xAxis.setDrawAxisLine(false);
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setCenterAxisLabels(false);
    xAxis.setTextColor(ContextCompat.getColor(context, R.color.colorIcons));
    // Y axis setup
    YAxis yAxis = lineChart.getAxisLeft();
    yAxis.setAxisMaximum(40);
    yAxis.setAxisMinimum(0);
    yAxis.setDrawLabels(false);
    yAxis.setDrawAxisLine(false);
    yAxis.setDrawGridLines(true);
    lineChart.getAxisRight().setEnabled(false);
    // Add data
    lineChart.setData(data);
}
 

@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);

        setTitle("BarChartActivityMultiDataset");

        tvX = findViewById(R.id.tvXMax);
        tvX.setTextSize(10);
        tvY = findViewById(R.id.tvYMax);

        seekBarX = findViewById(R.id.seekBar1);
        seekBarX.setMax(50);
        seekBarX.setOnSeekBarChangeListener(this);

        seekBarY = findViewById(R.id.seekBar2);
        seekBarY.setOnSeekBarChangeListener(this);

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

//        chart.setDrawBorders(true);

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

        chart.setDrawBarShadow(false);

        chart.setDrawGridBackground(false);

        // 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

        seekBarX.setProgress(10);
        seekBarY.setProgress(100);

        Legend l = chart.getLegend();
        l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
        l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT);
        l.setOrientation(Legend.LegendOrientation.VERTICAL);
        l.setDrawInside(true);
        l.setTypeface(tfLight);
        l.setYOffset(0f);
        l.setXOffset(10f);
        l.setYEntrySpace(0f);
        l.setTextSize(8f);

        XAxis xAxis = chart.getXAxis();
        xAxis.setTypeface(tfLight);
        xAxis.setGranularity(1f);
        xAxis.setCenterAxisLabels(true);
        xAxis.setValueFormatter(new ValueFormatter() {
            @Override
            public String getFormattedValue(float value) {
                return String.valueOf((int) value);
            }
        });

        YAxis leftAxis = chart.getAxisLeft();
        leftAxis.setTypeface(tfLight);
        leftAxis.setValueFormatter(new LargeValueFormatter());
        leftAxis.setDrawGridLines(false);
        leftAxis.setSpaceTop(35f);
        leftAxis.setAxisMinimum(0f); // this replaces setStartAtZero(true)

        chart.getAxisRight().setEnabled(false);
    }
 

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

    setTitle("LineChartTime");

    tvX = findViewById(R.id.tvXMax);
    seekBarX = findViewById(R.id.seekBar1);
    seekBarX.setOnSeekBarChangeListener(this);

    chart = findViewById(R.id.chart1);

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

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

    chart.setDragDecelerationFrictionCoef(0.9f);

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

    // set an alternative background color
    chart.setBackgroundColor(Color.WHITE);
    chart.setViewPortOffsets(0f, 0f, 0f, 0f);

    // add data
    seekBarX.setProgress(100);

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

    XAxis xAxis = chart.getXAxis();
    xAxis.setPosition(XAxis.XAxisPosition.TOP_INSIDE);
    xAxis.setTypeface(tfLight);
    xAxis.setTextSize(10f);
    xAxis.setTextColor(Color.WHITE);
    xAxis.setDrawAxisLine(false);
    xAxis.setDrawGridLines(true);
    xAxis.setTextColor(Color.rgb(255, 192, 56));
    xAxis.setCenterAxisLabels(true);
    xAxis.setGranularity(1f); // one hour
    xAxis.setValueFormatter(new ValueFormatter() {

        private final SimpleDateFormat mFormat = new SimpleDateFormat("dd MMM HH:mm", Locale.ENGLISH);

        @Override
        public String getFormattedValue(float value) {

            long millis = TimeUnit.HOURS.toMillis((long) value);
            return mFormat.format(new Date(millis));
        }
    });

    YAxis leftAxis = chart.getAxisLeft();
    leftAxis.setPosition(YAxis.YAxisLabelPosition.INSIDE_CHART);
    leftAxis.setTypeface(tfLight);
    leftAxis.setTextColor(ColorTemplate.getHoloBlue());
    leftAxis.setDrawGridLines(true);
    leftAxis.setGranularityEnabled(true);
    leftAxis.setAxisMinimum(0f);
    leftAxis.setAxisMaximum(170f);
    leftAxis.setYOffset(-9f);
    leftAxis.setTextColor(Color.rgb(255, 192, 56));

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

@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());
    }
 

public DateGraph(Context context, LineChart chart, String name) {
    mChart = chart;
    mChartName = name;
    mChart.setDoubleTapToZoomEnabled(true);
    mChart.setHorizontalScrollBarEnabled(true);
    mChart.setVerticalScrollBarEnabled(true);
    mChart.setAutoScaleMinMaxEnabled(true);
    mChart.setDrawBorders(true);
    mChart.setNoDataText(context.getString(R.string.no_chart_data_available));

    IMarker marker = new DateGraphMarkerView(mChart.getContext(), R.layout.graph_markerview, mChart);
    mChart.setMarker(marker);

    mContext = context;
    // get the legend (only possible after setting data)
    Legend l = mChart.getLegend();
    l.setEnabled(false);

    XAxis xAxis = mChart.getXAxis();
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setTextColor(ColorTemplate.getHoloBlue());
    xAxis.setDrawAxisLine(true);
    xAxis.setDrawGridLines(true);
    xAxis.setCenterAxisLabels(false);
    xAxis.setGranularity(1); // 1 jour
    xAxis.setValueFormatter(new IAxisValueFormatter() {

        private SimpleDateFormat mFormat = new SimpleDateFormat("dd-MMM"); // HH:mm:ss

        @Override
        public String getFormattedValue(float value, AxisBase axis) {
            //long millis = TimeUnit.HOURS.toMillis((long) value);
            mFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
            Date tmpDate = new Date((long) DateConverter.nbMilliseconds(value)); // Convert days in milliseconds
            return mFormat.format(tmpDate);
        }
    });

    YAxis leftAxis = mChart.getAxisLeft();
    leftAxis.setPosition(YAxis.YAxisLabelPosition.OUTSIDE_CHART);
    leftAxis.setTextColor(ColorTemplate.getHoloBlue());
    leftAxis.setDrawGridLines(true);
    leftAxis.setGranularityEnabled(true);
    leftAxis.setGranularity((float) 0.5);
    leftAxis.resetAxisMinimum();

    mChart.getAxisRight().setEnabled(false);
}
 

public MiniDateGraph(Context context, LineChart chart, String name) {
    mChart = chart;
    mChartName = name;
    mChart.getDescription().setEnabled(false);
    mChart.setDoubleTapToZoomEnabled(false);
    mChart.setHorizontalScrollBarEnabled(false);
    mChart.setVerticalScrollBarEnabled(false);
    mChart.setAutoScaleMinMaxEnabled(false);
    mChart.setDrawBorders(false);
    mChart.setViewPortOffsets(6f, 6f, 6f, 6f);
    mChart.animateY(1000, Easing.EaseInOutBack); // animate horizontal 3000 milliseconds
    mChart.setClickable(false);

    mChart.getAxisRight().setDrawLabels(false);
    mChart.getAxisLeft().setDrawLabels(false);
    mChart.getLegend().setEnabled(false);
    mChart.setPinchZoom(false);
    mChart.setDescription(null);
    mChart.setTouchEnabled(false);
    mChart.setDoubleTapToZoomEnabled(false);
    mChart.setNoDataText(context.getString(R.string.no_chart_data_available));

    mContext = context;
    // get the legend (only possible after setting data)
    Legend l = mChart.getLegend();
    l.setEnabled(false);

    XAxis xAxis = mChart.getXAxis();
    xAxis.setDrawLabels(false);
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setTextColor(ColorTemplate.getHoloBlue());
    xAxis.setDrawAxisLine(false);
    xAxis.setDrawGridLines(false);
    xAxis.setCenterAxisLabels(false);
    xAxis.setGranularity(1); // 1 jour

    YAxis leftAxis = mChart.getAxisLeft();
    leftAxis.setEnabled(false);
    leftAxis.setDrawZeroLine(false);
    leftAxis.setDrawLabels(false);
    leftAxis.setPosition(YAxis.YAxisLabelPosition.OUTSIDE_CHART);
    leftAxis.setTextColor(ColorTemplate.getHoloBlue());
    leftAxis.setDrawGridLines(false);
    leftAxis.setGranularityEnabled(false);

    mChart.getAxisRight().setEnabled(false);
}