Java LineDataSet.setCircleColorHole方法代碼示例

import com.github.mikephil.charting.data.LineDataSet; //導入方法依賴的package包/類
private boolean setUpChart(@NonNull Model model) {
    final double[] accuracies = model.getAccuracies();

    if (accuracies == null
            || accuracies.length == 0
            || model.getStepEpoch() < 1) {
        return false;
    }

    mAccuracyData.clear();

    for (int i = 0, len = model.getStepEpoch(); i < len; ++i) {
        mAccuracyData.add(new Entry(i + 1, (float) accuracies[i]));
    }

    final LineDataSet set = new LineDataSet(mAccuracyData, getString(R.string.text_chart_left_axis));

    set.setMode(LineDataSet.Mode.LINEAR);
    set.setAxisDependency(YAxis.AxisDependency.LEFT);
    set.setColor(ContextCompat.getColor(this, R.color.chart_left_axis));
    set.setCircleColor(ContextCompat.getColor(this, R.color.chart_left_axis));
    set.setHighLightColor(ContextCompat.getColor(this, R.color.chart_highlight));
    set.setCircleColorHole(Color.WHITE);
    set.setDrawCircleHole(true);
    set.setHighlightEnabled(true);
    set.setLineWidth(2F);
    set.setCircleRadius(3F);
    set.setDrawFilled(false);

    final LineData group = new LineData(set);
    group.setDrawValues(false);

    setXAxis(model.getEpochs());

    mChart.setData(group);
    mChart.invalidate();
    startChartAnimate();

    return true;
}
 

import com.github.mikephil.charting.data.LineDataSet; //導入方法依賴的package包/類
private void drawBrightnessChart() {
    final String brightnessCurveString = brightnessCurveData.toString();
    List<Entry> entries = new ArrayList<>();

    // "u" marks the start of the brightness curve data
    int startIndex = brightnessCurveString.indexOf("u") + 1;
    int endIndex = brightnessCurveString.indexOf("end");
    if (endIndex == -1) endIndex = brightnessCurveString.length();

    String[] brightnessStrings =
            brightnessCurveString.substring(startIndex, endIndex).trim().split("\n");
    for (String str : brightnessStrings) {
        String[] arr = str.split(" ");
        final float timestampMs = Integer.parseInt(arr[0]) / 1000f;
        final float brightness = Integer.parseInt(arr[1]);
        entries.add(new Entry(timestampMs, brightness));
    }
    LineDataSet dataSet = new LineDataSet(entries, "Brightness");
    dataSet.setColor(Color.BLACK);
    dataSet.setValueTextColor(Color.BLACK);
    dataSet.setCircleColor(Color.BLACK);
    dataSet.setCircleRadius(1.5f);
    dataSet.setCircleColorHole(Color.DKGRAY);
    LineData lineData = new LineData(dataSet);
    brightnessChart.setData(lineData);
    final Description desc = new Description();
    desc.setText("Screen Brightness [digital level 0-1023] vs. Time [ms]");
    desc.setTextSize(12f);
    brightnessChart.setDescription(desc);
    brightnessChart.getLegend().setEnabled(false);
    brightnessChart.invalidate();
    brightnessChartLayout.setVisibility(View.VISIBLE);
}
 

import com.github.mikephil.charting.data.LineDataSet; //導入方法依賴的package包/類
private void drawWaveformChart() {
    final short[] wave = AudioTest.getRecordedWave();
    List<Entry> entries = new ArrayList<>();
    int frameRate = audioTest.getOptimalFrameRate();
    for (int i = 0; i < wave.length; i++) {
        float timeStamp = (float) i / frameRate * 1000f;
        entries.add(new Entry(timeStamp, (float) wave[i]));
    }
    LineDataSet dataSet = new LineDataSet(entries, "Waveform");
    dataSet.setColor(Color.BLACK);
    dataSet.setValueTextColor(Color.BLACK);
    dataSet.setCircleColor(ContextCompat.getColor(getContext(), R.color.DarkGreen));
    dataSet.setCircleRadius(1.5f);
    dataSet.setCircleColorHole(Color.DKGRAY);
    LineData lineData = new LineData(dataSet);
    chart.setData(lineData);

    LimitLine line = new LimitLine(audioTest.getThreshold(), "Threshold");
    line.setLineColor(Color.RED);
    line.setLabelPosition(LimitLine.LimitLabelPosition.LEFT_TOP);
    line.setLineWidth(2f);
    line.setTextColor(Color.DKGRAY);
    line.setTextSize(10f);
    chart.getAxisLeft().addLimitLine(line);

    final Description desc = new Description();
    desc.setText("Wave [digital level -32768 to +32767] vs. Time [ms]");
    desc.setTextSize(12f);
    chart.setDescription(desc);
    chart.getLegend().setEnabled(false);
    chart.invalidate();
    chartLayout.setVisibility(View.VISIBLE);
}
 

import com.github.mikephil.charting.data.LineDataSet; //導入方法依賴的package包/類
@Override
void dataSetConfig(IDataSet<Entry> dataSet, ReadableMap config) {
    LineDataSet lineDataSet = (LineDataSet) dataSet;

    ChartDataSetConfigUtils.commonConfig(lineDataSet, config);
    ChartDataSetConfigUtils.commonBarLineScatterCandleBubbleConfig(lineDataSet, config);
    ChartDataSetConfigUtils.commonLineScatterCandleRadarConfig(lineDataSet, config);
    ChartDataSetConfigUtils.commonLineRadarConfig(lineDataSet, config);

    // LineDataSet only config
    if (BridgeUtils.validate(config, ReadableType.Number, "circleRadius")) {
        lineDataSet.setCircleRadius((float) config.getDouble("circleRadius"));
    }
    if (BridgeUtils.validate(config, ReadableType.Boolean, "drawCircles")) {
        lineDataSet.setDrawCircles(config.getBoolean("drawCircles"));
    }
    if (BridgeUtils.validate(config, ReadableType.Boolean, "drawCubic")) {
        lineDataSet.setDrawCubic(config.getBoolean("drawCubic"));
    }
    if (BridgeUtils.validate(config, ReadableType.Number, "drawCubicIntensity")) {
        lineDataSet.setCubicIntensity((float) config.getDouble("drawCubicIntensity"));
    }
    if (BridgeUtils.validate(config, ReadableType.String, "circleColor")) {
        lineDataSet.setCircleColor(Color.parseColor(config.getString("circleColor")));
    }
    if (BridgeUtils.validate(config, ReadableType.Array, "circleColors")) {
        lineDataSet.setCircleColors(BridgeUtils.parseColors(config.getArray("circleColors")));
    }
    if (BridgeUtils.validate(config, ReadableType.String, "circleColorHole")) {
        lineDataSet.setCircleColorHole(Color.parseColor(config.getString("circleColorHole")));
    }
    if (BridgeUtils.validate(config, ReadableType.Boolean, "drawCircleHole")) {
        lineDataSet.setDrawCircleHole(config.getBoolean("drawCircleHole"));
    }
    if (BridgeUtils.validate(config, ReadableType.Map, "dashedLine")) {
        ReadableMap dashedLine = config.getMap("dashedLine");
        float lineLength = 0;
        float spaceLength = 0;
        float phase = 0;

        if (BridgeUtils.validate(dashedLine, ReadableType.Number, "lineLength")) {
            lineLength = (float) dashedLine.getDouble("lineLength");
        }
        if (BridgeUtils.validate(dashedLine, ReadableType.Number, "spaceLength")) {
            spaceLength = (float) dashedLine.getDouble("spaceLength");
        }
        if (BridgeUtils.validate(dashedLine, ReadableType.Number, "phase")) {
            phase = (float) dashedLine.getDouble("phase");
        }

        lineDataSet.enableDashedLine(lineLength, spaceLength, phase);
    }
}