Java Code Examples for com.github.mikephil.charting.data.LineDataSet#setFillDrawable()

private ILineDataSet createSet(int type) {
        LineDataSet set = new LineDataSet(null, String.valueOf(type));
//        set.setAxisDependency(YAxis.AxisDependency.LEFT);
        if (type == TYPE_FULL) {
            set.setHighLightColor(mLineColor);
            set.setDrawHighlightIndicators(true);
//            set.setDrawVerticalHighlightIndicator(false);
            set.setHighlightLineWidth(0.5f);
            set.setCircleColor(mLineColor);
            set.setCircleRadius(1.5f);
            set.setDrawCircleHole(false);
            set.setDrawFilled(true);
            set.setColor(mLineColor);
            set.setLineWidth(1f);
            set.setFillDrawable(new ColorDrawable(transparentColor));
        } else if (type == TYPE_AVE) {
            set.setHighlightEnabled(true);
            set.setColor(ContextCompat.getColor(mContext, R.color.ave_color));
            set.setLineWidth(1f);
            set.setCircleRadius(1.5f);
            set.setDrawCircleHole(false);
            set.setCircleColor(transparentColor);
            set.setLineWidth(0.5f);
        } else {
            set.setHighlightEnabled(true);
            set.setDrawVerticalHighlightIndicator(false);
            set.setHighLightColor(transparentColor);
            set.setColor(mLineColor);
            set.enableDashedLine(3, 40, 0);
            set.setDrawCircleHole(false);
            set.setCircleColor(transparentColor);
            set.setLineWidth(1f);
            set.setVisible(true);
        }
        set.setDrawCircles(false);
        set.setDrawValues(false);
        return set;
    }
 

/**
 * Style char lines (type, color, etc.).
 *
 * @param entries list of entries.
 * @return line data chart.
 */
private LineData styleChartLines(List<Entry> entries) {
    // Set styles
    LineDataSet lineDataSet = new LineDataSet(entries, "Recording");
    lineDataSet.setMode(LineDataSet.Mode.HORIZONTAL_BEZIER);
    lineDataSet.setCubicIntensity(0.2f);
    lineDataSet.setDrawValues(false);
    lineDataSet.setDrawCircles(false);
    lineDataSet.setLineWidth(1.8f);
    lineDataSet.setColor(ContextCompat.getColor(context, R.color.colorAccent));
    if (((int) lineDataSet.getYMax()) != 0) {
        lineDataSet.setDrawFilled(true);
        lineDataSet.setFillAlpha(255);
        // Fix bug with vectors in API < 21
        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT){
            Drawable drawable = ResourcesCompat.getDrawable(context.getResources(),
                    R.drawable.chart_fade, null);
            lineDataSet.setFillDrawable(drawable);
        } else{
            lineDataSet.setFillColor(ContextCompat.getColor(context, R.color.colorPrimary));
        }
    }
    return new LineData(lineDataSet);
}
 

/**
 * 曲线赋值与设置
 *
 * @param context   上下文
 * @param yDataList y轴数据
 * @return LineData
 */
private static LineData setLineData(Context context, List<Entry> yDataList,
                                    String curveLable) {
    // y轴的数据集合
    LineDataSet lineDataSet = new LineDataSet(yDataList, curveLable);
    // 用y轴的集合来设置参数
    lineDataSet.setAxisDependency(YAxis.AxisDependency.LEFT);
    // 不显示坐标点的数据
    lineDataSet.setDrawValues(false);
    // 显示坐标点的小圆点
    lineDataSet.setDrawCircles(false);
    // 定位线
    lineDataSet.setHighlightEnabled(false);
    // 线宽
    lineDataSet.setLineWidth(1f);
    // 显示的圆形大小
    lineDataSet.setCircleSize(2f);
    // 显示颜色
    lineDataSet.setColor(context.getApplicationContext().getResources().getColor(R.color.chart_color));
    // 圆形的颜色
    lineDataSet.setCircleColor(context.getApplicationContext().getResources().getColor(R.color.chart_color));
    // 高亮的线的颜色
    lineDataSet.setHighLightColor(context.getApplicationContext().getResources()
            .getColor(R.color.chart_color));
    // 设置填充的颜色

    Drawable drawable = ContextCompat.getDrawable(context, R.drawable.fade_color);
    lineDataSet.setFillDrawable(drawable);

    // 设置坐标点为空心环状
    lineDataSet.setDrawCircleHole(false);
    // lineDataSet.setValueTextSize(9f);
    lineDataSet.setFillAlpha(30);
    // 设置显示曲线和X轴围成的区域阴影
    lineDataSet.setDrawFilled(true);
    // 坐标轴在左侧
    lineDataSet.setAxisDependency(YAxis.AxisDependency.LEFT);
    // 设置每条曲线图例标签名
    // lineDataSet.setLabel("标签");
    lineDataSet.setValueTextSize(14f);
    // 曲线弧度（区间0.05f-1f，默认0.2f）
    lineDataSet.setCubicIntensity(0.2f);
    // 设置为曲线显示,false为折线
    lineDataSet.setMode(LineDataSet.Mode.CUBIC_BEZIER);
    lineDataSet.setValues(yDataList);
    // y轴的数据
    LineData lineData = new LineData(lineDataSet);
    return lineData;
}
 

private void setData(int count, float range) {

        ArrayList<String> xVals = new ArrayList<String>();
        for (int i = 0; i < count; i++) {
            xVals.add((i) + "");
        }

        ArrayList<Entry> yVals = new ArrayList<Entry>();

        for (int i = 0; i < count; i++) {

            float mult = (range + 1);
            float val = (float) (Math.random() * mult) + 3;// + (float)
            // ((mult *
            // 0.1) / 10);
            yVals.add(new Entry(val, i));
        }

        // create a dataset and give it a type
        LineDataSet set1 = new LineDataSet(yVals, "DataSet 1");
        // set1.setFillAlpha(110);
        // set1.setFillColor(Color.RED);

        // set the line to be drawn like this "- - - - - -"
        set1.enableDashedLine(10f, 5f, 0f);
        set1.enableDashedHighlightLine(10f, 5f, 0f);
        set1.setColor(Color.BLACK);
        set1.setCircleColor(Color.BLACK);
        set1.setLineWidth(1f);
        set1.setCircleRadius(3f);
        set1.setDrawCircleHole(false);
        set1.setValueTextSize(9f);
        Drawable drawable = ContextCompat.getDrawable(this, R.drawable.fade_red);
        set1.setFillDrawable(drawable);
        set1.setDrawFilled(true);

        ArrayList<ILineDataSet> dataSets = new ArrayList<ILineDataSet>();
        dataSets.add(set1); // add the datasets

        // create a data object with the datasets
        LineData data = new LineData(xVals, dataSets);

        // set data
        mChart.setData(data);
    }
 

public void draw(ArrayList<Entry> entries) {
    mChart.clear();
    if (entries.isEmpty()) {
        return;
    }

    Collections.sort(entries, new EntryXComparator());

    //Log.d("DEBUG", arrayToString(entries));

    LineDataSet set1 = new LineDataSet(entries, mChartName);
    set1.setLineWidth(3f);
    set1.setCircleRadius(4f);
    set1.setDrawFilled(true);
    if (Utils.getSDKInt() >= 18) {
        // fill drawable only supported on api level 18 and above
        Drawable drawable = ContextCompat.getDrawable(mContext, R.drawable.fade_blue);
        set1.setFillDrawable(drawable);
    } else {
        set1.setFillColor(ColorTemplate.getHoloBlue());
    }
    set1.setFillAlpha(100);
    set1.setColor(mContext.getResources().getColor(R.color.toolbar_background));
    set1.setCircleColor(mContext.getResources().getColor(R.color.toolbar_background));

    // Create a data object with the datasets
    LineData data = new LineData(set1);

    data.setValueFormatter(new IValueFormatter() {
        private DecimalFormat mFormat = new DecimalFormat("#.##");

        @Override
        public String getFormattedValue(float value, Entry entry, int dataSetIndex, ViewPortHandler viewPortHandler) {
            return mFormat.format(value);
        }
    });

    // Set data
    mChart.setData(data);

    mChart.invalidate();
    //mChart.animateY(500, Easing.EasingOption.EaseInBack);    //refresh graph

}
 

public void draw(ArrayList<Entry> entries) {
    mChart.clear();
    if (entries.isEmpty()) {
        return;
    }

    Collections.sort(entries, new EntryXComparator());

    //Log.d("DEBUG", arrayToString(entries));

    LineDataSet set1 = new LineDataSet(entries, mChartName);
    set1.setLineWidth(3f);
    set1.setCircleRadius(0f);
    set1.setDrawFilled(true);
    if (Utils.getSDKInt() >= 18) {
        // fill drawable only supported on api level 18 and above
        Drawable drawable = ContextCompat.getDrawable(mContext, R.drawable.fade_blue);
        set1.setFillDrawable(drawable);
    } else {
        set1.setFillColor(ColorTemplate.getHoloBlue());
    }
    set1.setFillAlpha(100);
    set1.setColor(mContext.getResources().getColor(R.color.toolbar_background));
    set1.setCircleColor(mContext.getResources().getColor(R.color.toolbar_background));

    // Create a data object with the datasets
    LineData data = new LineData(set1);
    data.setDrawValues(false);

    /*data.setValueFormatter(new IValueFormatter() {
        private DecimalFormat mFormat = new DecimalFormat("#.##");

        @Override
        public String getFormattedValue(float value, Entry entry, int dataSetIndex, ViewPortHandler viewPortHandler) {
            return mFormat.format(value);
        }
    });*/

    // Set data
    mChart.setData(data);

    mChart.invalidate();
    //mChart.animateY(500, Easing.EasingOption.EaseInBack);    //refresh graph

}
 

void setGraphData(JSONArray currencyRateTrends) {
    ArrayList<Entry> values = new ArrayList<>();

    for (int i = 0; i < currencyRateTrends.length(); i++) {
        try {
            values.add(new Entry(i, (float) currencyRateTrends.getDouble(i)));
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

    LineDataSet lineDataSet = new LineDataSet(values, GRAPH_LABEL_NAME);
    lineDataSet.setDrawIcons(false);
    lineDataSet.setColor(Color.RED);
    lineDataSet.setCircleColor(Color.BLUE);
    lineDataSet.setCircleRadius(1f);
    lineDataSet.setLineWidth(1f);
    lineDataSet.setCircleRadius(3f);
    lineDataSet.setDrawCircleHole(true);
    lineDataSet.setValueTextSize(10f);
    lineDataSet.setValueTextColor(Color.BLACK);
    lineDataSet.setDrawFilled(true);
    lineDataSet.setFormSize(10.f);
    if (Utils.getSDKInt() >= 18) {
        // fill drawable only supported on api level 18 and above
        Drawable drawable = ContextCompat.getDrawable(this, R.drawable.fade_green);
        lineDataSet.setFillDrawable(drawable);
    } else {
        lineDataSet.setFillColor(Color.BLACK);
    }

    ArrayList<ILineDataSet> dataSets = new ArrayList<ILineDataSet>();
    dataSets.add(lineDataSet);

    // create a data object with the datasets
    LineData data = new LineData(dataSets);

    // set data
    graph.setData(data);

}