com.github.mikephil.charting.formatter.DefaultValueFormatter Java Examples

/**
 * calculates the required number of digits for the values that might be
 * drawn in the chart (if enabled), and creates the default-value-formatter
 */
protected void calculateFormatter(float min, float max) {

    float reference = 0f;

    if (mData == null || mData.getXValCount() < 2) {

        reference = Math.max(Math.abs(min), Math.abs(max));
    } else {
        reference = Math.abs(max - min);
    }

    int digits = Utils.getDecimals(reference);
    mDefaultFormatter = new DefaultValueFormatter(digits);
}
 

/**
 * If this component has no ValueFormatter or is only equipped with the
 * default one (no custom set), return true.
 *
 * @return
 */
public boolean needsDefaultFormatter() {
    if (mValueFormatter == null)
        return true;
    if (mValueFormatter instanceof DefaultValueFormatter)
        return true;

    return false;
}
 

/**
 * If this component has no YAxisValueFormatter or is only equipped with the default one (no custom set), return true.
 * 
 * @return
 */
public boolean needsDefaultFormatter() {
	if (mYAxisValueFormatter == null)
		return true;
	if (mYAxisValueFormatter instanceof DefaultValueFormatter)
		return true;

	return false;
}
 

/**
 * calculates the required number of digits for the values that might be
 * drawn in the chart (if enabled), and creates the default-value-formatter
 */
protected void calculateFormatter(float min, float max) {

    float reference = 0f;

    if (mData == null || mData.getXValCount() < 2) {

        reference = Math.max(Math.abs(min), Math.abs(max));
    } else {
        reference = Math.abs(max - min);
    }

    int digits = Utils.getDecimals(reference);
    mDefaultFormatter = new DefaultValueFormatter(digits);
}
 

/**
 * If this component has no ValueFormatter or is only equipped with the
 * default one (no custom set), return true.
 *
 * @return
 */
public static boolean needsDefaultFormatter(ValueFormatter formatter) {
    if (formatter == null)
        return true;
    if (formatter instanceof DefaultValueFormatter)
        return true;

    return false;
}
 

/**
 * If this component has no YAxisValueFormatter or is only equipped with the default one (no custom set), return true.
 *
 * @return
 */
public boolean needsDefaultFormatter() {
    if (mYAxisValueFormatter == null)
        return true;
    if (mYAxisValueFormatter instanceof DefaultValueFormatter)
        return true;

    return false;
}
 

/**
 * calculates the required number of digits for the values that might be
 * drawn in the chart (if enabled), and creates the default-value-formatter
 */
protected void calculateFormatter(float min, float max) {

    float reference = 0f;

    if (mData == null || mData.getXValCount() < 2) {

        reference = Math.max(Math.abs(min), Math.abs(max));
    } else {
        reference = Math.abs(max - min);
    }

    int digits = Utils.getDecimals(reference);
    mDefaultFormatter = new DefaultValueFormatter(digits);
}
 

/**
 * If this component has no ValueFormatter or is only equipped with the
 * default one (no custom set), return true.
 *
 * @return
 */
public static boolean needsDefaultFormatter(ValueFormatter formatter) {
    if (formatter == null)
        return true;
    if (formatter instanceof DefaultValueFormatter)
        return true;

    return false;
}
 

/**
 * If this component has no YAxisValueFormatter or is only equipped with the default one (no
 * custom set), return true.
 *
 * @return
 */
public boolean needsDefaultFormatter() {
    if (mYAxisValueFormatter == null)
        return true;
    if (mYAxisValueFormatter instanceof DefaultValueFormatter)
        return true;

    return false;
}
 

private static ValueFormatter generateDefaultValueFormatter() {
    return new DefaultValueFormatter(1);
}
 

private static IValueFormatter generateDefaultValueFormatter() {
    final DefaultValueFormatter formatter = new DefaultValueFormatter(1);
    return formatter;
}
 

private static IValueFormatter generateDefaultValueFormatter() {
    final DefaultValueFormatter formatter = new DefaultValueFormatter(1);
    return formatter;
}
 

private void createPieChart(List<Long> contacts, List<Long> voicemails, List<Long> unavailables, long firstTimestamp) {
    Date date = new Date(firstTimestamp);

    ArrayList<Integer> colorsList = new ArrayList<>();
    // Create pie pieChart data entries and add correct colors.
    ArrayList<PieEntry> entries = new ArrayList<>();
    if (contacts.size() > 0) {
        entries.add(new PieEntry(contacts.size(), getResources().getString(R.string.contact_n)));
        colorsList.add(getResources().getColor(R.color.contacted_color));
    }
    if (voicemails.size() > 0) {
        entries.add(new PieEntry(voicemails.size(),  getResources().getString(R.string.voicemail_n)));
        colorsList.add(getResources().getColor(R.color.voicemail_color));
    }
    if (unavailables.size() > 0) {
        entries.add(new PieEntry(unavailables.size(),  getResources().getString(R.string.unavailable_n)));
        colorsList.add(getResources().getColor(R.color.unavailable_color));
    }

    PieDataSet dataSet = new PieDataSet(entries, getResources().getString(R.string.menu_stats));

    // Add colors and set visual properties for pie pieChart.
    dataSet.setColors(colorsList);
    dataSet.setSliceSpace(3f);
    dataSet.setSelectionShift(5f);
    dataSet.setValueLinePart1OffsetPercentage(80.f);
    dataSet.setValueLinePart1Length(.1f);
    dataSet.setValueLinePart2Length(.5f);
    dataSet.setValueLineColor(getResources().getColor(R.color.colorPrimaryDark));
    dataSet.setYValuePosition(PieDataSet.ValuePosition.INSIDE_SLICE);
    dataSet.setXValuePosition(PieDataSet.ValuePosition.OUTSIDE_SLICE);

    PieData data = new PieData(dataSet);
    data.setValueTextSize(18f);
    data.setValueFormatter(new DefaultValueFormatter(0));
    data.setValueTextColor(Color.WHITE);

    SpannableString insideCircleText = new SpannableString(getResources().getString(R.string.stats_summary_total)
            +"\n"
            + Integer.toString(voicemails.size()+contacts.size()+unavailables.size())
            + "\n"
            + this.dateFormat.format(date)
            + "-"
            + this.dateFormat.format(new Date(System.currentTimeMillis()))
    );
    insideCircleText.setSpan(new RelativeSizeSpan(2f), 0, insideCircleText.length() - 17, 0);

    pieChart.setData(data);
    pieChart.setCenterText(insideCircleText);
    pieChart.setCenterTextColor(getResources().getColor(R.color.colorPrimaryDark));
    pieChart.setCenterTextSize(11f);
    pieChart.setHoleRadius(70);
    pieChart.setEntryLabelColor(getResources().getColor(R.color.colorPrimaryDark));
    pieChart.getLegend().setEnabled(false);
    pieChart.setDescription(new Description());
    pieChart.getDescription().setText("");
    pieChart.invalidate();
}
 

/**
 * Returns the formatter used for drawing the values inside the chart.
 *
 * @return
 */
public ValueFormatter getValueFormatter() {
    if (mValueFormatter == null)
        return new DefaultValueFormatter(1);
    return mValueFormatter;
}
 

@Override
public ValueFormatter getValueFormatter() {
    if (mValueFormatter == null)
        return new DefaultValueFormatter(1);
    return mValueFormatter;
}
 

@Override
public ValueFormatter getValueFormatter() {
    if (mValueFormatter == null)
        return new DefaultValueFormatter(1);
    return mValueFormatter;
}