KChartView

效果预览

配置及使用

xml简单配置

<com.github.tifezh.kchartlib.chart.KChartView
 android:id="@+id/kchart_view"
 android:layout_width="match_parent"
    android:layout_height="match_parent"
 </com.github.tifezh.kchartlib.chart.KChartView>

xml中配置示例

<com.github.tifezh.kchartlib.chart.KChartView
 android:id="@+id/kchart_view"
 android:layout_width="match_parent"
    android:layout_height="match_parent"
 app:kc_text_size="@dimen/chart_text_size"
 app:kc_text_color="#787878"
 app:kc_line_width="@dimen/chart_line_width"
 app:kc_background_color="#FFF"
 app:kc_selected_line_color="#B1B2B6"
 app:kc_selected_line_width="1dp"
 app:kc_grid_line_color="#d0d0d0"
 app:kc_grid_line_width="0.5dp"
 app:kc_point_width="6dp"
 app:kc_macd_width="4dp"
 app:kc_dif_color="@color/chart_ma5"
 app:kc_dea_color="@color/chart_ma10"
 app:kc_macd_color="@color/chart_ma20"
 app:kc_k_color="@color/chart_ma5"
 app:kc_d_color="@color/chart_ma10"
 app:kc_j_color="@color/chart_ma20"
 app:kc_rsi1_color="@color/chart_ma5"
 app:kc_rsi2_color="@color/chart_ma10"
 app:kc_ris3_color="@color/chart_ma20"
 app:kc_up_color="@color/chart_ma5"
 app:kc_mb_color="@color/chart_ma10"
 app:kc_dn_color="@color/chart_ma20"
 app:kc_ma5_color="@color/chart_ma5"
 app:kc_ma10_color="@color/chart_ma10"
 app:kc_ma20_color="@color/chart_ma20"
 app:kc_candle_line_width="1dp"
 app:kc_candle_width="4dp"
 app:kc_selector_background_color="#c8d0d0d0"
 app:kc_selector_text_size="@dimen/chart_selector_text_size"
 app:kc_tab_text_color="@color/tab_light_text_color_selector"
 app:kc_tab_indicator_color="#4473b1"
 app:kc_tab_background_color="#fff"
 app:kc_candle_solid="false">
 </com.github.tifezh.kchartlib.chart.KChartView>

数据实体继承KLineImpl类 获取各个指标的值

public class KLineEntity implements KLineImpl {
 public String getDatetime() {
 return Date;
 }
 public float getOpenPrice() {
 return Open;
 }
 public float getHighPrice() {
 return High;
 }
 public float getLowPrice() {
 return Low;
 }
 public float getClosePrice() {
 return Close;
 }
 public float getMA5Price() {
 return MA5Price;
 }
 public float getMA10Price() {
 return MA10Price;
 }
 public float getMA20Price() {
 return MA20Price;
 }
 public float getDea() {
 return dea;
 }
 public float getDif() {
 return dif;
 }
 public float getMacd() {
 return macd;
 }
 public float getK() {
 return k;
 }
 public float getD() {
 return d;
 }
 public float getJ() {
 return j;
 }
 public float getRsi1() {
 return rsi1;
 }
 public float getRsi2() {
 return rsi2;
 }
 public float getRsi3() {
 return rsi3;
 }
 public float getUp() {
 return up;
 }
 public float getMb() {
 return mb;
 }
 public float getDn() {
 return dn;
 }
 public String Date;
 public float Open;
 public float High;
 public float Low;
 public float Close;
 public float Volume;
 public float MA5Price;
 public float MA10Price;
 public float MA20Price;
 public float dea;
 public float dif;
 public float macd;
 public float k;
 public float d;
 public float j;
 public float rsi1;
 public float rsi2;
 public float rsi3;
 public float up;
 public float mb;
 public float dn;
}

定义数据适配器

public class KChartAdapter extends BaseKChartAdapter {
 private List<KLineEntity> datas = new ArrayList<>();
 public KChartAdapter() {
 }
 @Override
 public int getCount() {
 return datas.size();
 }
 @Override
 public Object getItem(int position) {
 return datas.get(position);
 }
 @Override
 public Date getDate(int position) {
 try {
 String s = datas.get(position).Date;
 String[] split = s.split("/");
 Date date = new Date();
 date.setYear(Integer.parseInt(split[0]) - 1900);
 date.setMonth(Integer.parseInt(split[1]) - 1);
 date.setDate(Integer.parseInt(split[2]));
 return date;
 } catch (Exception e) {
 e.printStackTrace();
 }
 return null;
 }
 /**
 * 向头部添加数据
 */
 public void addHeaderData(List<KLineEntity> data) {
 if (data != null && !data.isEmpty()) {
 datas.addAll(data);
 notifyDataSetChanged();
 }
 }
 /**
 * 向尾部添加数据
 */
 public void addFooterData(List<KLineEntity> data) {
 if (data != null && !data.isEmpty()) {
 datas.addAll(0, data);
 notifyDataSetChanged();
 }
 }
 /**
 * 改变某个点的值
 * @param position 索引值
 */
 public void changeItem(int position,KLineEntity data)
 {
 datas.set(position,data);
 notifyDataSetChanged();
 }
}

加载数据

 mKChartView.showLoading();
new Thread(new Runnable() {
 @Override
 public void run() {
 final List<KLineEntity> data = DataRequest.getALL(ExampleActivity.this);
 runOnUiThread(new Runnable() {
 @Override
 public void run() {
        //追加数据
        mAdapter.addFooterData(data);
        //开始动画
        mKChartView.startAnimation();
        //刷新完成
        mKChartView.refreshEnd();
 }
 });
 }
}).start();

更多使用方法请下载demo查看

扩展性

添加其他指数 以添加kdj指标为例

public interface KDJImpl {
 public float getK();
 public float getD();
 public float getJ();
}

public class KDJDraw implements IChartDraw<KDJImpl> {
 private Paint mKPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
 private Paint mDPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
 private Paint mJPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
 public KDJDraw(BaseKChartView view) {
 }
 @Override
 public void drawTranslated(@Nullable KDJImpl lastPoint, @NonNull KDJImpl curPoint, float lastX, float curX, @NonNull Canvas canvas, @NonNull BaseKChartView view, int position) {
 view.drawChildLine(canvas, mKPaint, lastX, lastPoint.getK(), curX, curPoint.getK());
 view.drawChildLine(canvas, mDPaint, lastX, lastPoint.getD(), curX, curPoint.getD());
 view.drawChildLine(canvas, mJPaint, lastX, lastPoint.getJ(), curX, curPoint.getJ());
 }
 @Override
 public void drawText(@NonNull Canvas canvas, @NonNull BaseKChartView view, int position, float x, float y) {
 String text = "";
 KDJImpl point = (KDJImpl) view.getItem(position);
 text = "K:" + view.formatValue(point.getK()) + " ";
 canvas.drawText(text, x, y, mKPaint);
 x += mKPaint.measureText(text);
 text = "D:" + view.formatValue(point.getD()) + " ";
 canvas.drawText(text, x, y, mDPaint);
 x += mDPaint.measureText(text);
 text = "J:" + view.formatValue(point.getJ()) + " ";
 canvas.drawText(text, x, y, mJPaint);
 }
 @Override
 public float getMaxValue(KDJImpl point) {
 return Math.max(point.getK(), Math.max(point.getD(), point.getJ()));
 }
 @Override
 public float getMinValue(KDJImpl point) {
 return Math.min(point.getK(), Math.min(point.getD(), point.getJ()));
 }
 /**
 * 设置K颜色
 */
 public void setKColor(int color) {
 mKPaint.setColor(color);
 }
 /**
 * 设置D颜色
 */
 public void setDColor(int color) {
 mDPaint.setColor(color);
 }
 /**
 * 设置J颜色
 */
 public void setJColor(int color) {
 mJPaint.setColor(color);
 }
 /**
 * 设置曲线宽度
 */
 public void setLineWidth(float width)
 {
 mKPaint.setStrokeWidth(width);
 mDPaint.setStrokeWidth(width);
 mJPaint.setStrokeWidth(width);
 }
 /**
 * 设置文字大小
 */
 public void setTextSize(float textSize)
 {
 mKPaint.setTextSize(textSize);
 mDPaint.setTextSize(textSize);
 mJPaint.setTextSize(textSize);
 }
}

mKChartView.addChildDraw("KDJ", mKDJDraw);

自定义画线,画柱体 以macd为例

 @Override
public void drawTranslated(@Nullable MACDImpl lastPoint, @NonNull MACDImpl curPoint, float lastX, float curX, @NonNull Canvas canvas, @NonNull BaseKChartView view, int position) {
 drawMACD(canvas, view, curX, curPoint.getMacd());
 view.drawChildLine(canvas, mDIFPaint, lastX, lastPoint.getDea(), curX, curPoint.getDea());
 view.drawChildLine(canvas, mDEAPaint, lastX, lastPoint.getDif(), curX, curPoint.getDif());
 }
/**
 * 画macd
 * @param canvas
 * @param x
 * @param macd
 */
private void drawMACD(Canvas canvas, BaseKChartView view, float x, float macd) {
 float macdy = view.getChildY(macd);
 float r = mMACDWidth / 2;
 float zeroy=view.getChildY(0);
 if (macd > 0) {
 canvas.drawRect(x - r, macdy, x + r, zeroy, mRedPaint);
 } else {
 canvas.drawRect(x - r, zeroy, x + r, macdy, mGreenPaint);
 }
}