这是结合csdn上大佬的写法简化了一下。好多属性没放上，简单参考一下吧。
先放两张效果图
image
image
主要代码
1、折线图
public class LineChartHelper {
private GraphicalViewgraphicalView;
private XYMultipleSeriesDatasetxyMultipleSeriesDataset;//数据集容器
private XYMultipleSeriesRendererxyMultipleSeriesRenderer;//渲染器容器
private XYSeriesxySeries;//单条曲线数据集
private XYSeriesRendererxySeriesRenderer;//单条曲线渲染器
private Contextcontext;
public LineChartHelper(Context context) {
this.context = context;
}
public GraphicalViewgetGraphicalView() {
graphicalView = ChartFactory.getLineChartView(context, xyMultipleSeriesDataset
, xyMultipleSeriesRenderer);
return graphicalView;
}
public void setXyMultipleSeriesDataset(String chartTitle) {
xyMultipleSeriesDataset =new XYMultipleSeriesDataset();
xySeries =new XYSeries(chartTitle);
xyMultipleSeriesDataset.addSeries(xySeries);
}
public void setXyMultipleSeriesRenderer(String chartTitle) {
xyMultipleSeriesRenderer =new XYMultipleSeriesRenderer();
if (chartTitle !=null) {
xyMultipleSeriesRenderer.setChartTitle(chartTitle);
}
xyMultipleSeriesRenderer.setShowGrid(true);
xyMultipleSeriesRenderer.setXLabelsColor(Color.BLACK);
xyMultipleSeriesRenderer.setYLabelsColor(0, Color.BLACK);
xyMultipleSeriesRenderer.setMarginsColor(Color.WHITE);
xyMultipleSeriesRenderer.setFitLegend(true);//自适应大小
xySeriesRenderer =new XYSeriesRenderer();
xySeriesRenderer.setDisplayChartValues(true);//显示数值
xyMultipleSeriesRenderer.addSeriesRenderer(xySeriesRenderer);
}
public void updateChart(double x, double y) {
xySeries.add(x, y);
xyMultipleSeriesRenderer.setRange(new double[]{x -5, x, 0, 1000});
graphicalView.repaint();
}
}
调用
public void setLineChart(String chartTitle) {
lineChartHelper = new LineChartHelper(MainActivity.this);
lineChartHelper.setXyMultipleSeriesDataset(chartTitle);
lineChartHelper.setXyMultipleSeriesRenderer(chartTitle);
graphicalView = lineChartHelper.getGraphicalView();
lineLayout.addView(graphicalView);
}
2、饼图
public class PieChartHelper {
private GraphicalView graphicalView;
private CategorySeries categorySeries;
private DefaultRenderer defaultRenderer;
private SimpleSeriesRenderer simpleSeriesRenderer;// 单块饼图渲染
private Context context;
public PieChartHelper(Context context) {
this.context = context;
}
public GraphicalView getGraphicalView() {
graphicalView = ChartFactory.getPieChartView(context, categorySeries
, defaultRenderer);
return graphicalView;
}
public void setCategorySeries(String title) {
categorySeries = new CategorySeries(title);
}
public void setDefaultRenderer(String title) {
defaultRenderer = new DefaultRenderer();
defaultRenderer.setChartTitle(title);
defaultRenderer.setDisplayValues(true);
defaultRenderer.setFitLegend(true);
}
public void updateChart(double[] values, double sumval) {
for (int i = 0; i < values.length; i++) {
simpleSeriesRenderer = new SimpleSeriesRenderer();
categorySeries.add("数据" + (i + 1), values[i] / sumval);
simpleSeriesRenderer.setColor(getRandomColor());
simpleSeriesRenderer.setChartValuesFormat(NumberFormat.getPercentInstance());
defaultRenderer.addSeriesRenderer(simpleSeriesRenderer);
}
graphicalView.repaint();
}
//随机颜色
public int getRandomColor() {
Random random = new Random();
int R = random.nextInt(255);
int G = random.nextInt(255);
int B = random.nextInt(255);
return Color.rgb(R, G, B);
}
}
调用
public void setPieLayout(String chartTitle) {
pieChartHelper = new PieChartHelper(MainActivity.this);
pieChartHelper.setCategorySeries(chartTitle);
pieChartHelper.setDefaultRenderer(chartTitle);
values = new double[10];
graphicalView = pieChartHelper.getGraphicalView();
pieLayout.addView(graphicalView);
}
3、柱状图
public class BarChartHelper {
private GraphicalView graphicalView;
private XYMultipleSeriesDataset xyMultipleSeriesDataset;
private XYMultipleSeriesRenderer xyMultipleSeriesRenderer;
private XYSeries xySeries;
private XYSeriesRenderer xySeriesRenderer;
private Context context;
public BarChartHelper(Context context) {
this.context = context;
}
public GraphicalView getGraphicalView() {
graphicalView = ChartFactory.getBarChartView(context, xyMultipleSeriesDataset,
xyMultipleSeriesRenderer, BarChart.Type.DEFAULT);
return graphicalView;
}
public void setXyMultipleSeriesDataset() {
xyMultipleSeriesDataset = new XYMultipleSeriesDataset();
}
public void setXyMultipleSeriesRenderer(String title) {
xyMultipleSeriesRenderer = new XYMultipleSeriesRenderer();
xyMultipleSeriesRenderer.setChartTitle(title);
xyMultipleSeriesRenderer.setFitLegend(true);
}
public void updateChart(String[] titles, ArrayList<double[]> values) {
for (int i = 0; i < titles.length; i++) {
xySeries = new XYSeries(titles[i]);
double[] yLable = values.get(i);
for (int j = 0; j < yLable.length; j++) {
xySeries.add(j, yLable[j]);
}
xyMultipleSeriesDataset.addSeries(xySeries);
xySeriesRenderer = new XYSeriesRenderer();
xySeriesRenderer.setColor(getRandomColor());
xySeriesRenderer.setDisplayChartValues(true);
xyMultipleSeriesRenderer.addSeriesRenderer(xySeriesRenderer);
}
graphicalView.repaint();
}
public int getRandomColor() {
Random random = new Random();
int R = random.nextInt(255);
int G = random.nextInt(255);
int B = random.nextInt(255);
return Color.rgb(R, G, B);
}
}
调用
public void setBarLayout(String title) {
barChartHelper = new BarChartHelper(MainActivity.this);
barChartHelper.setXyMultipleSeriesDataset();
barChartHelper.setXyMultipleSeriesRenderer(title);
barValues = new ArrayList<>();
graphicalView = barChartHelper.getGraphicalView();
barLayout.addView(graphicalView);
}
4、Main函数
public class MainActivity extends AppCompatActivity {
private GraphicalView graphicalView;
private LinearLayout lineLayout, pieLayout, barLayout;
private LineChartHelper lineChartHelper;
private PieChartHelper pieChartHelper;
private BarChartHelper barChartHelper;
private Map<String, String> map;
private String data;
private int x;
private int j;
private double[] values;
private double sumval;
private boolean flag = true;
private ArrayList<double[]> barValues;
private String[] barTitles = {"1"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lineLayout = findViewById(R.id.lineChart);
pieLayout = findViewById(R.id.pieChart);
barLayout = findViewById(R.id.barChart);
setLineChart("折线图");
setPieLayout("饼图");
setBarLayout("柱状图");
new Thread(new Runnable() {
@Override
public void run() {
map = new HashMap<>();
map.put("object", "light");
map.put("action", "get");
Log.i("http", "开启线程");
while (true) {
try {
String httpData = HttpUtil.getJson(MainActivity.this, map);
Log.i("http", httpData);
JSONObject jsonObject = new JSONObject(httpData);
data = jsonObject.getString("pm2.5");
Message message = new Message();
message.what = 1;
handler.sendMessage(message);
Thread.sleep(1 * 1000);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}).start();
}
5、更新数据
private Handler handler = new Handler() {
@Override
public void handleMessage(@NonNull Message msg) {
if (msg.what == 1) {
Log.i("http", "handler");
lineChartHelper.updateChart(x, Double.valueOf(data));//折线图
if (j < 10) {
values[j] = Double.valueOf(data);
sumval = sumval + values[j];
j++;
}
if (j == 10 && flag == true) {
pieChartHelper.updateChart(values, sumval);//饼图（前十个数据）
flag = false;
barValues.add(values);
barChartHelper.updateChart(barTitles, barValues);//柱状图（前十个数据）
}
}
x++;
}
};
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