Examples with IndexAxisValueFormatter com.github.mikephil.charting.formatter.IndexAxisValueFormatter used on opensource projects

Example 1 with IndexAxisValueFormatter

use of com.github.mikephil.charting.formatter.IndexAxisValueFormatter in project android by lucadln.

the class ScoreChart method disposeHorizontalBarChart.

/**
 * Method to set data and design for the bar chart
 */
public void disposeHorizontalBarChart(float[] scores, int[] correctConjugationsCount, int[] totalConjugationsCount) {
    /* Set a custom renderer. This helps to show chart labels either
         *   inside or outside the chart bars depending on their values */
    barChart.setRenderer(new CustomHorizontalBarChartRenderer(barChart, barChart.getAnimator(), barChart.getViewPortHandler(), scores));
    barChart.invalidate();
    // Add entry values for every tense
    ArrayList<BarEntry> barEntries = new ArrayList<>();
    for (int i = 0; i < tenses.length; i++) {
        barEntries.add(new BarEntry((float) i, scores[i]));
    }
    // Create a data set from the entry values
    BarDataSet dataSet = new BarDataSet(barEntries, "Tenses");
    // Set data set values to be visible on the graph
    dataSet.setDrawValues(true);
    // Create a data object from the data set
    BarData data = new BarData(dataSet);
    // Set the width of the bars
    data.setBarWidth(0.68f);
    // Make the chart use the acquired data
    barChart.setData(data);
    // Display data as <correctAnswers>/<totalAnswers>
    data.setValueFormatter(new CustomValueFormatter(correctConjugationsCount, totalConjugationsCount));
    // Create explanation labels for each bar
    final ArrayList<String> barLabels = new ArrayList<>();
    barLabels.add("Present");
    barLabels.add("Pres. Perfect");
    barLabels.add("Simple Past");
    barLabels.add("Past Perfect");
    barLabels.add("Conditional");
    barLabels.add("Cond. Perfect");
    barLabels.add("Future");
    // Display explanation labels
    barChart.getXAxis().setValueFormatter(new IndexAxisValueFormatter(barLabels));
    // Set the minimum and maximum bar values
    barChart.getAxisLeft().setAxisMaximum(100);
    barChart.getAxisLeft().setAxisMinimum(0);
    // Set a color for each bar in the chart based on its value
    setBarChartColors(scores);
    // Animate chart so that bars are sliding from left to right
    barChart.animateXY(1000, 1000);
    // Hide grid lines
    barChart.getAxisLeft().setEnabled(false);
    barChart.getAxisRight().setEnabled(false);
    // Hide graph description
    barChart.getDescription().setEnabled(false);
    // Hide graph legend
    barChart.getLegend().setEnabled(false);
    // Set colors and font style
    dataSet.setColors(colors);
    data.setValueTextSize(13f);
    data.setValueTextColor(Color.DKGRAY);
}