MPchart 曲线图、柱状图、饼图

一。加入依赖库，在项目build.gradle下面的dependencies里面加入：

implementation 'com.github.PhilJay:MPAndroidChart:v3.0.3'

二。因为网上资源比较多，注释也比较清楚，就直接贴上所有代码

1.两个管理类

public class LineChartManager {

    private LineChart lineChart;
    private YAxis leftAxis;   //左边Y轴
    private YAxis rightAxis;  //右边Y轴
    private XAxis xAxis;      //X轴

    public LineChartManager(LineChart mLineChart) {
        this.lineChart = mLineChart;
        leftAxis = lineChart.getAxisLeft();
        rightAxis = lineChart.getAxisRight();
        rightAxis.setDrawLabels(false);//右侧Y轴数据不显示
        xAxis = lineChart.getXAxis();
    }

    /**
     * 初始化LineChart
     */
    private void initLineChart() {
        lineChart.setDrawGridBackground(false);
        //显示边界
        lineChart.setDrawBorders(true);

        //设置动画效果
        lineChart.animateY(1000, Easing.EasingOption.Linear);
        lineChart.animateX(1000, Easing.EasingOption.Linear);

        //折线图例 标签 设置
        Legend legend = lineChart.getLegend();
        legend.setForm(Legend.LegendForm.LINE);
        legend.setTextSize(11f);
        //显示位置
        legend.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
        legend.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT);
        legend.setOrientation(Legend.LegendOrientation.HORIZONTAL);
        legend.setDrawInside(false);

        //XY轴的设置
        //X轴设置显示位置在底部
        xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
        xAxis.setAxisMinimum(0f);
        xAxis.setGranularity(1f);
        //保证Y轴从0开始，不然会上移一点
        leftAxis.setAxisMinimum(0f);
        rightAxis.setAxisMinimum(0f);
    }

    /**
     * 初始化曲线 每一个LineDataSet代表一条线
     *
     * @param lineDataSet
     * @param color
     * @param mode        折线图是否填充
     */
    private void initLineDataSet(LineDataSet lineDataSet, int color, boolean mode) {
        lineDataSet.setColor(color);
        lineDataSet.setCircleColor(color);
        lineDataSet.setLineWidth(1f);
        lineDataSet.setCircleRadius(3f);
        //设置曲线值的圆点是实心还是空心
        lineDataSet.setDrawCircleHole(false);
        lineDataSet.setValueTextSize(9f);
        //设置折线图填充
        lineDataSet.setDrawFilled(mode);
        lineDataSet.setFormLineWidth(1f);
        lineDataSet.setFormSize(15.f);
        //填充颜色.透明度
//        lineDataSet.setFillColor(Color.BLUE);
        lineDataSet.setFillAlpha(35);
        //线模式为圆滑曲线（默认折线）
        lineDataSet.setMode(LineDataSet.Mode.CUBIC_BEZIER);
    }

    /**
     * 展示折线图(一条)
     *
     * @param xAxisValues
     * @param yAxisValues
     * @param label
     * @param color
     */
    public void showLineChart(List<Float> xAxisValues, List<Float> yAxisValues, String label, int color) {
        initLineChart();
        ArrayList<Entry> entries = new ArrayList<>();
        for (int i = 0; i < xAxisValues.size(); i++) {
            entries.add(new Entry(xAxisValues.get(i), yAxisValues.get(i)));
        }
        // 每一个LineDataSet代表一条线
        LineDataSet lineDataSet = new LineDataSet(entries, label);
        initLineDataSet(lineDataSet, color, true);

        ArrayList<ILineDataSet> dataSets = new ArrayList<>();
        dataSets.add(lineDataSet);
        LineData data = new LineData(dataSets);
        //设置X轴的刻度数
        xAxis.setLabelCount(xAxisValues.size(), true);
        lineChart.setData(data);
    }

    /**
     * 展示线性图(多条)
     *
     * @param xAxisValues
     * @param yAxisValues 多条曲线Y轴数据集合的集合
     * @param labels
     * @param colours
     */
    public void showLineChart(List<Float> xAxisValues, List<List<Float>> yAxisValues, List<String> labels, List<Integer> colours) {
        initLineChart();
        ArrayList<ILineDataSet> dataSets = new ArrayList<>();
        for (int i = 0; i < yAxisValues.size(); i++) {
            ArrayList<Entry> entries = new ArrayList<>();
            for (int j = 0; j < yAxisValues.get(i).size(); j++) {
                if (j >= xAxisValues.size()) {
                    j = xAxisValues.size() - 1;
                }
                entries.add(new Entry(xAxisValues.get(j), yAxisValues.get(i).get(j)));
            }
            LineDataSet lineDataSet = new LineDataSet(entries, labels.get(i));

            initLineDataSet(lineDataSet, colours.get(i), false);
            dataSets.add(lineDataSet);
        }
        LineData data = new LineData(dataSets);
        xAxis.setLabelCount(xAxisValues.size(), true);
        lineChart.setData(data);
    }

    /**
     * 设置Y轴值
     *
     * @param max
     * @param min
     * @param labelCount
     */
    public void setYAxis(float max, float min, int labelCount) {
        if (max < min) {
            return;
        }
        leftAxis.setAxisMaximum(max);
        leftAxis.setAxisMinimum(min);
        leftAxis.setLabelCount(labelCount, false);

        rightAxis.setAxisMaximum(max);
        rightAxis.setAxisMinimum(min);
        rightAxis.setLabelCount(labelCount, false);
        lineChart.invalidate();
    }

    /**
     * 设置X轴的值
     *
     * @param max
     * @param min
     * @param labelCount
     */
    public void setXAxis(float max, float min, int labelCount) {
        xAxis.setAxisMaximum(max);
        xAxis.setAxisMinimum(min);
        xAxis.setLabelCount(labelCount, true);

        lineChart.invalidate();
    }

    /**
     * 设置高限制线
     *
     * @param high
     * @param name