android原生 K线图demo

# KChartView KChart for Android ；股票k线图 效果预览 ------- * 支持macd,kdj,rsi,boll多种指标切换，支持横竖屏切换，支持长按，缩放，滑动，fling事件等。 <div class='row'> <img src='https://github.com/tifezh/KChartView/blob/master/img/demo.gif' width="300px"/> </div> * 支持自定义样式 <div class='row'>        <img src='https://github.com/tifezh/KChartView/blob/master/img/style1.png' width="300px"/> <img src='https://github.com/tifezh/KChartView/blob/master/img/style2.png' width="300px"/> </div> #### 配置及使用 ##### xml简单配置 ```xml <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 ```xml <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IKLine类 获取各个指标的值 ```java public class KLineEntity implements KLine { 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 ```java 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 ```java 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 * 定义kdj中的值 ```java public interface IKDJ { /** * K值 */ float getK(); /** * D值 */ float getD(); /** * J值 */ float getJ(); } ``` * 实现IChartDraw接口 ```java public class KDJDraw implements IChartDraw<IKDJ> { 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 IKDJ lastPoint, IKDJ curPoint, float lastX, float curX, Canvas canvas, 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( Canvas canvas, BaseKChartView view, int position, float x, float y) { String text = ""; IKDJ point = (IKDJ) 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