Java BarDataSet.setValueFormatter方法代码示例

import com.github.mikephil.charting.data.BarDataSet; //导入方法依赖的package包/类
TestCaseRunner(int iterations, BarChart chart, String title, int color, IValueFormatter valueFormatter) {
    mIterations = iterations;
    mChart = chart;
    mEntries = new LinkedList<>();
    mDataSet = new BarDataSet(mEntries, title);
    mDataSet.setValueFormatter(valueFormatter);
    mDataSet.setColor(color);
}
 

import com.github.mikephil.charting.data.BarDataSet; //导入方法依赖的package包/类
private BarData getBarData(List<String> xVals, List<BarEntry> barEntries) {
    final BarDataSet dataSet = new BarDataSet(barEntries, getContext().getString(R.string.servings));

    dataSet.setColor(ContextCompat.getColor(getContext(), R.color.colorPrimary));
    dataSet.setValueTextColor(ContextCompat.getColor(getContext(), android.R.color.white));
    dataSet.setValueTextSize(14);

    // We just want the value as an integer
    dataSet.setValueFormatter(new BarChartValueFormatter());

    return new BarData(xVals, dataSet);
}
 

import com.github.mikephil.charting.data.BarDataSet; //导入方法依赖的package包/类
private void addDataSet(GraphData graphData) {
    Log.e("yangjun", "----- addDataSet ----");
    BarData barData = partBartChart.getData();
    if (barData != null) {
        Log.e("yangjun", "----- clear values ----");
        barData.clearValues();
    }

    List<Partition> partitions = graphData.getPartitions();
    // READ
    ArrayList<BarEntry> yVals1 = new ArrayList<BarEntry>();
    for (int i = 0; i < partitions.size(); i++) {
        yVals1.add(new BarEntry(partitions.get(i).readLogs.size(), i));
    }
    // WRITE
    ArrayList<BarEntry> yVals2 = new ArrayList<BarEntry>();
    for (int i = 0; i < partitions.size(); i++) {
        yVals2.add(new BarEntry(partitions.get(i).writeLogs.size(), i));
    }

    BarDataSet set1 = new BarDataSet(yVals1, "READ");
    set1.setColor(Color.rgb(104, 241, 175));
    set1.setValueFormatter(new LargeValueFormatter());
    BarDataSet set2 = new BarDataSet(yVals2, "WRITE");
    set2.setColor(Color.rgb(164, 228, 251));
    set2.setValueFormatter(new LargeValueFormatter());

    barData.addDataSet(set1);
    barData.addDataSet(set2);

    partBartChart.notifyDataSetChanged();
    partBartChart.invalidate();
}
 

import com.github.mikephil.charting.data.BarDataSet; //导入方法依赖的package包/类
@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("Age Distribution Austria");

    mChart = (HorizontalBarChart) findViewById(R.id.chart1);
    mChart.setOnChartValueSelectedListener(this);
    mChart.setDrawGridBackground(false);
    mChart.setDescription("");

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

    mChart.setDrawBarShadow(false);
    mChart.setDrawValueAboveBar(true);
    
    mChart.getAxisLeft().setEnabled(false);
    mChart.getAxisRight().setAxisMaxValue(25f);
    mChart.getAxisRight().setAxisMinValue(-25f);
    mChart.getAxisRight().setDrawGridLines(false);
    mChart.getAxisRight().setDrawZeroLine(true);
    mChart.getAxisRight().setLabelCount(7, false);
    mChart.getAxisRight().setValueFormatter(new CustomFormatter());
    mChart.getAxisRight().setTextSize(9f);

    XAxis xAxis = mChart.getXAxis();
    xAxis.setPosition(XAxisPosition.BOTH_SIDED);
    xAxis.setDrawGridLines(false);
    xAxis.setDrawAxisLine(false);
    xAxis.setTextSize(9f);

    Legend l = mChart.getLegend();
    l.setPosition(LegendPosition.BELOW_CHART_RIGHT);
    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> yValues = new ArrayList<BarEntry>();
    yValues.add(new BarEntry(new float[]{ -10, 10 }, 0));
    yValues.add(new BarEntry(new float[]{ -12, 13 }, 1));
    yValues.add(new BarEntry(new float[]{ -15, 15 }, 2));
    yValues.add(new BarEntry(new float[]{ -17, 17 }, 3));
    yValues.add(new BarEntry(new float[]{ -19, 20 }, 4));
    yValues.add(new BarEntry(new float[]{ -19, 19 }, 5));
    yValues.add(new BarEntry(new float[]{ -16, 16 }, 6));
    yValues.add(new BarEntry(new float[]{ -13, 14 }, 7));
    yValues.add(new BarEntry(new float[]{ -10, 11 }, 8));
    yValues.add(new BarEntry(new float[]{ -5, 6 }, 9));
    yValues.add(new BarEntry(new float[]{ -1, 2 }, 10));

    BarDataSet set = new BarDataSet(yValues, "Age Distribution");
    set.setValueFormatter(new CustomFormatter());
    set.setValueTextSize(7f);
    set.setAxisDependency(YAxis.AxisDependency.RIGHT);
    set.setBarSpacePercent(40f);
    set.setColors(new int[] {Color.rgb(67,67,72), Color.rgb(124,181,236)});
    set.setStackLabels(new String[]{
            "Men", "Women"
    });

    String []xVals = new String[]{"0-10", "10-20", "20-30", "30-40", "40-50", "50-60", "60-70", "70-80", "80-90", "90-100", "100+"};

    BarData data = new BarData(xVals, set);
    mChart.setData(data);
    mChart.invalidate();
}