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2022-05-30
Android笔记：MPAndroidChart使用
Gradle
Project level build.gradle（在project的build.gradle中添加依赖）
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allprojects { repositories { maven { url 'https://jitpack.io' } } }
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App level build.gradle（在app的build.gradle中添加依赖）
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dependencies { implementation 'com.github.PhilJay:MPAndroidChart:v3.0.3' }
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二、layout布局，我这里实现了三个图形，可以根据自己的需要，添加图形控件
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三、实现代码
图形横纵坐标默认为float形式，如果想展示文字形式，需要自定义适配器。自定义适配器会在“四”中列出
public class FifteenActivity extends AppCompatActivity implements OnChartValueSelectedListener { private String[] mMonths = new String[]{ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Okt", "Nov", "Dec"}; private String[] mParties = new String[]{ "Party A", "Party B", "Party C", "Party D", "Party E", "Party F", "Party G", "Party H", "Party I", "Party J", "Party K", "Party L", "Party M", "Party N", "Party O", "Party P", "Party Q", "Party R", "Party S", "Party T", "Party U", "Party V", "Party W", "Party X", "Party Y", "Party Z" }; private Typeface mTfRegular; private Typeface mTfLight; protected BarChart mChart; private HorizontalBarChart hBarChart; private LineChart lineChart; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_fifteen_layout); mTfRegular = Typeface.createFromAsset(getAssets(), "OpenSans-Regular.ttf"); mTfLight = Typeface.createFromAsset(getAssets(), "OpenSans-Light.ttf"); mChart = findViewById(R.id.chart1); hBarChart = findViewById(R.id.hBarChart); lineChart = findViewById(R.id.lineChart); initBarChart(); initHBarChart(); initLineChart(); } /** * 初始化柱形图控件属性 */ private void initBarChart() { mChart.setOnChartValueSelectedListener(this); mChart.setDrawBarShadow(false); mChart.setDrawValueAboveBar(true); mChart.getDescription().setEnabled(false); // if more than 60 entries are displayed in the chart, no values will be // drawn mChart.setMaxVisibleValueCount(60); // scaling can now only be done on x- and y-axis separately mChart.setPinchZoom(false); mChart.setDrawGridBackground(false); // IAxisValueFormatter xAxisFormatter = new DayAxisValueFormatter(mChart); //自定义坐标轴适配器，配置在X轴，xAxis.setValueFormatter(xAxisFormatter); IAxisValueFormatter xAxisFormatter = new XAxisValueFormatter(); XAxis xAxis = mChart.getXAxis(); xAxis.setPosition(XAxis.XAxisPosition.BOTTOM); xAxis.setTypeface(mTfLight);//可以去掉，没什么用 xAxis.setDrawAxisLine(false); xAxis.setGranularity(1f); xAxis.setValueFormatter(xAxisFormatter); //自定义坐标轴适配器，配置在Y轴。leftAxis.setValueFormatter(custom); IAxisValueFormatter custom = new MyAxisValueFormatter(); //设置限制临界线 LimitLine limitLine = new LimitLine(3f, "临界点"); limitLine.setLineColor(Color.GREEN); limitLine.setLineWidth(1f); limitLine.setTextColor(Color.GREEN); //获取到图形左边的Y轴 YAxis leftAxis = mChart.getAxisLeft(); leftAxis.addLimitLine(limitLine); leftAxis.setTypeface(mTfLight);//可以去掉，没什么用 leftAxis.setLabelCount(8, false); leftAxis.setValueFormatter(custom); leftAxis.setPosition(YAxis.YAxisLabelPosition.OUTSIDE_CHART); leftAxis.setSpaceTop(15f); leftAxis.setAxisMinimum(0f); //获取到图形右边的Y轴，并设置为不显示 mChart.getAxisRight().setEnabled(false); //图例设置 Legend legend = mChart.getLegend(); legend.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM); legend.setHorizontalAlignment(Legend.LegendHorizontalAlignment.LEFT); legend.setOrientation(Legend.LegendOrientation.HORIZONTAL); legend.setDrawInside(false); legend.setForm(Legend.LegendForm.SQUARE); legend.setFormSize(9f); legend.setTextSize(11f); legend.setXEntrySpace(4f); //如果点击柱形图，会弹出pop提示框.XYMarkerView为自定义弹出框 XYMarkerView mv = new XYMarkerView(this, xAxisFormatter); mv.setChartView(mChart); mChart.setMarker(mv); setBarChartData(); } /** * 初始化水平柱形图图控件属性 */ private void initHBarChart() { hBarChart.setOnChartValueSelectedListener(this); hBarChart.setDrawBarShadow(false); hBarChart.setDrawValueAboveBar(true); hBarChart.getDescription().setEnabled(false); // if more than 60 entries are displayed in the chart, no values will be // drawn hBarChart.setMaxVisibleValueCount(60); // scaling can now only be done on x- and y-axis separately hBarChart.setPinchZoom(false); // draw shadows for each bar that show the maximum value // mChart.setDrawBarShadow(true); hBarChart.setDrawGridBackground(false); //自定义坐标轴适配器，设置在X轴 DecimalFormatter formatter = new DecimalFormatter(); XAxis xl = hBarChart.getXAxis(); xl.setPosition(XAxis.XAxisPosition.BOTTOM); xl.setTypeface(mTfLight); xl.setLabelRotationAngle(-45f); xl.setDrawAxisLine(true); xl.setDrawGridLines(false); xl.setGranularity(1f); // xl.setAxisMinimum(0); xl.setValueFormatter(formatter); //对Y轴进行设置 YAxis yl = hBarChart.getAxisLeft(); yl.setTypeface(mTfLight); yl.setDrawAxisLine(true); yl.setDrawGridLines(true); yl.setAxisMinimum(0f); // this replaces setStartAtZero(true) // yl.setInverted(true); hBarChart.getAxisRight().setEnabled(false); //图例设置 Legend l = hBarChart.getLegend(); l.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM); l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.LEFT); l.setOrientation(Legend.LegendOrientation.HORIZONTAL); l.setDrawInside(false); l.setFormSize(8f); l.setXEntrySpace(4f); setHBarChartData(); hBarChart.setFitBars(true); hBarChart.animateY(2500); } /** * 初始化折线图控件属性 */ private void initLineChart() { lineChart.setOnChartValueSelectedListener(this); lineChart.getDescription().setEnabled(false); lineChart.setBackgroundColor(Color.WHITE); //自定义适配器，适配于X轴 IAxisValueFormatter xAxisFormatter = new XAxisValueFormatter(); XAxis xAxis = lineChart.getXAxis(); xAxis.setPosition(XAxis.XAxisPosition.BOTTOM); xAxis.setTypeface(mTfLight); xAxis.setGranularity(1f); xAxis.setValueFormatter(xAxisFormatter); //自定义适配器，适配于Y轴 IAxisValueFormatter custom = new MyAxisValueFormatter(); YAxis leftAxis = lineChart.getAxisLeft(); leftAxis.setTypeface(mTfLight); leftAxis.setLabelCount(8, false); leftAxis.setValueFormatter(custom); leftAxis.setPosition(YAxis.YAxisLabelPosition.OUTSIDE_CHART); leftAxis.setSpaceTop(15f); leftAxis.setAxisMinimum(0f); lineChart.getAxisRight().setEnabled(false); setLineChartData(); } private float getRandom(float range, float startsfrom) { return (float) (Math.random() * range) + startsfrom; } @Override public void onValueSelected(Entry e, Highlight h) { } @Override public void onNothingSelected() { } private void setBarChartData() { ArrayList
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四、自定义适配器类
XAxisValueFormatter：
public class XAxisValueFormatter implements IAxisValueFormatter { private String[] xStrs = new String[]{"春", "夏", "秋", "冬"}; @Override public String getFormattedValue(float value, AxisBase axis) { int position = (int) value; if (position >= 4) { position = 0; } return xStrs[position]; }
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MyAxisValueFormatter：
public class MyAxisValueFormatter implements IAxisValueFormatter { private DecimalFormat mFormat; public MyAxisValueFormatter() { mFormat = new DecimalFormat("###,###,###,##0.000"); } @Override public String getFormattedValue(float value, AxisBase axis) { return mFormat.format(value) + " $"; } } DecimalFormatter： public class DecimalFormatter implements IAxisValueFormatter { private DecimalFormat format; public DecimalFormatter() { format = new DecimalFormat("###,###,##0.00"); } @Override public String getFormattedValue(float value, AxisBase axis) { return format.format(value) + "$"; } }
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五、自定义MarkerView
public class XYMarkerView extends MarkerView { private TextView tvContent; private IAxisValueFormatter xAxisValueFormatter; private DecimalFormat format; public XYMarkerView(Context context, IAxisValueFormatter xAxisValueFormatter) { super(context, R.layout.custom_marker_view); this.xAxisValueFormatter = xAxisValueFormatter; tvContent = findViewById(R.id.tvContent); format = new DecimalFormat("###.000"); } @Override public void refreshContent(Entry e, Highlight highlight) { tvContent.setText("x：" + xAxisValueFormatter.getFormattedValue(e.getX(), null) + "，y：" + format.format(e.getY())); super.refreshContent(e, highlight); } @Override public MPPointF getOffset() { return new MPPointF(-(getWidth() / 2), -getHeight()); } }
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custom_marker_view：
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六、这里只实现了些基本功能，更多的API使用，请查看官方文档
官方文档：https://github.com/PhilJay/MPAndroidChart
MPAndroidChart中文文档-：https://download.csdn.net/download/android157/11188758
博客：https://blog.csdn.net/koma025/article/details/53886832
设置多组y值：https://blog.csdn.net/u011125199/article/details/52797439
修改源代码：https://blog.csdn.net/dt235201314/article/details/70142117
折线图设置文档：https://zhuanlan.zhihu.com/p/25672390
Android
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