MPAndroidChart:柱形统计图使用记录-横向

1、引入 build.gradle

allprojects {
    repositories {
        maven { url "https://jitpack.io" }
    }
}
dependencies{
    compile 'com.github.PhilJay:MPAndroidChart:v3.0.2'
 }

2、布局文件

  <com.github.mikephil.charting.charts.HorizontalBarChart
                android:id="@+id/chart"
                android:layout_width="match_parent"
                android:layout_height="500dp"></com.github.mikephil.charting.charts.HorizontalBarChart>

3、 Activity

  mChart.setEnabled(true);
        mChart.setDrawValueAboveBar(true);
        mChart.setDrawBarShadow(false);
        mChart.setDrawValueAboveBar(true);
        mChart.getDescription().setEnabled(false);
        mChart.setMaxVisibleValueCount(31);
        mChart.setPinchZoom(false);
        mChart.setDrawGridBackground(false);
        XAxis xl = mChart.getXAxis();
        xl.setPosition(XAxis.XAxisPosition.BOTTOM);
        xl.setTypeface(mTfLight);

        xl.setDrawAxisLine(true);
        xl.setDrawGridLines(false);
        xl.setAxisMinimum(1); // this replaces setStartAtZero(true)
        xl.setAxisMaximum(31);
        xl.setLabelCount(31, false);


        YAxis yl = mChart.getAxisLeft();
        yl.setTypeface(mTfLight);
        yl.setDrawAxisLine(true);
        yl.setDrawGridLines(true);
        yl.setAxisMinimum(1f); // this replaces setStartAtZero(true)
        yl.setAxisMaximum(300f);
//        yl.setInverted(true);


        YAxis yr = mChart.getAxisRight();
        yr.setTypeface(mTfLight);
        yr.setDrawAxisLine(true);
        yr.setDrawGridLines(false);
        yr.setAxisMinimum(1f); // this replaces setStartAtZero(true)
        yr.setAxisMaximum(300f);
//        yr.setInverted(true);

        setData(31, 300);//设置数据
        mChart.setFitBars(true);
        mChart.animateXY(3000, 3000);//为X轴Y轴设置动画
        Legend l = mChart.getLegend();
        l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
        l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT);
        l.setOrientation(Legend.LegendOrientation.HORIZONTAL);
        l.setDrawInside(false);
        l.setFormSize(8f);
        l.setXEntrySpace(14f);

4、填充数据

    private void setData(int count, float range) {
        float barWidth = 2f;
        float spaceForBar = 10f;
        ArrayList<BarEntry> yVals1 = new ArrayList<BarEntry>();

        for (int i = 1; i <= count; i++) {
            float val = (float) (Math.random() * range);
            yVals1.add(new BarEntry(i, val));

        }

        BarDataSet set1;

        if (mChart.getData() != null &&
                mChart.getData().getDataSetCount() > 0) {
            set1 = (BarDataSet) mChart.getData().getDataSetByIndex(0);
            set1.setValues(yVals1);
            mChart.getData().notifyDataChanged();
            mChart.notifyDataSetChanged();
        } else {
            set1 = new BarDataSet(yVals1, "数量/捆");//Y轴名称

//            set1.setDrawIcons(false);

            ArrayList<IBarDataSet> dataSets = new ArrayList<IBarDataSet>();
            dataSets.add(set1);

            BarData data = new BarData(dataSets);
            data.setValueTextSize(10f);
            data.setValueTypeface(mTfLight);
//            data.setBarWidth(barWidth);
            mChart.setData(data);
        }
    }