这次是在上一篇的基础上增加的，所以导包这些啥的就跳过了研究了一下代码，发现主要的区别就在于增加data的时候，第二个参数传递的是一个数组，然后就变成了堆叠条形图。
最后的代码：
XML布局文件：
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <LinearLayout android:layout_width="match_parent" android:layout_height="50dp"> <TextView android:layout_width="match_parent" android:layout_height="match_parent" android:text="这是一个柱状图" android:gravity="center"/> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="150dp" android:orientation="vertical"> <com.github.mikephil.charting.charts.BarChart android:id="@+id/barChart" android:layout_width="match_parent" android:layout_height="150dp" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="50dp"> <TextView android:layout_width="match_parent" android:layout_height="match_parent" android:text="这是一个堆叠条形图" android:gravity="center"/> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="150dp" android:orientation="vertical"> <com.github.mikephil.charting.charts.BarChart android:id="@+id/duiDieChart" android:layout_width="match_parent" android:layout_height="150dp" /> </LinearLayout> </LinearLayout>
MainActivity，这里只把堆叠图的代码放出来了，之前的看上一篇文章
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
BarChart duiDieChart = findViewById(R.id.duiDieChart);
duiDieChart.getDescription().setEnabled(false);
duiDieChart.setMaxVisibleValueCount(40);
// 扩展现在只能分别在x轴和y轴
duiDieChart.setPinchZoom(false);
duiDieChart.setDrawGridBackground(false);
duiDieChart.setDrawBarShadow(false);
duiDieChart.setDrawValueAboveBar(false);
duiDieChart.setHighlightFullBarEnabled(false);
// 改变y标签的位置
YAxis leftAxis = duiDieChart.getAxisLeft();
leftAxis.setDrawGridLines(false);
leftAxis.setAxisMinimum(0f);
duiDieChart.getAxisRight().setEnabled(false);
XAxis xLabels = duiDieChart.getXAxis();
xLabels.setDrawGridLines(true);
xLabels.setPosition(XAxis.XAxisPosition.TOP);
Legend l = duiDieChart.getLegend();
l.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM);
l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT);
l.setOrientation(Legend.LegendOrientation.HORIZONTAL);
l.setDrawInside(false);
l.setFormSize(8f);
l.setFormToTextSpace(4f);
l.setXEntrySpace(6f);
ArrayList<BarEntry> weiZhangZhanBi = new ArrayList<>();
for (int i = 0; i <= 5; i++) {
float a = new Random().nextInt(400);
float b = new Random().nextInt(400);
weiZhangZhanBi.add(new BarEntry(i, new float[]{a, b}));
}
BarDataSet set1;
if (duiDieChart.getData() != null &&
duiDieChart.getData().getDataSetCount() > 0) {
set1 = (BarDataSet) duiDieChart.getData().getDataSetByIndex(0);
set1.setValues(weiZhangZhanBi);
duiDieChart.getData().notifyDataChanged();
duiDieChart.notifyDataSetChanged();
} else {
set1 = new BarDataSet(weiZhangZhanBi, "年龄群体车辆违章的占比统计
");
set1.setColors(getColors());
set1.setStackLabels(new String[]{"有违章", "无违章"});
ArrayList<IBarDataSet> dataSets = new ArrayList<IBarDataSet>();
dataSets.add(set1);
BarData data = new BarData(dataSets);
data.setValueTextColor(Color.WHITE);
duiDieChart.setData(data);
}
duiDieChart.setFitBars(true);
duiDieChart.invalidate();
}
}看着这篇文章来的：https://blog.csdn.net/qq_26787115/article/details/53323046