android 非框架 分时图和K线图分时图（四）

K线的视图和分时图基本一致，主要是矩形的绘制和阴线阳线的结合，eg：用红色柱子举例，先取一个柱子的中间横坐标X，线的绘制很简单，阴线和阳线都一样 横坐标都设为X纵坐标就是算出来的y值，能绘制出两条不相连的竖线，中间部分绘制矩形，用new RectF（left,top,right,bttom）方法 左右为x 上线为y，left为x-a （a为k线宽度的一半）right：x+a，top为阳线的下部y坐标 需要一致，同理bottom为阴线的上方y坐标。 这样形成一个k柱整体。

public class KLineViewPortrait extends View{//private float width=0 , height=0;Resources res = Main.getInstance().getResources();public KLineViewPortrait(Context context){super(context);}public KLineViewPortrait(Context context, AttributeSet attrs){super(context, attrs);}public KLineViewPortrait(Context context, AttributeSet attrs, int defStyle){super(context, attrs, defStyle);}@Overridepublic void onDraw(Canvas canvas){super.onDraw(canvas);ArrayList<KPointModel> list = Tool_K.k_map.get(Tool.commodityid);draw_data(canvas,list);}/** * 绘制数据 * @param canvas * @param list */private void draw_data(Canvas canvas,ArrayList<KPointModel> list){//绘制k线draw_k3(canvas,list);//绘制MAdraw_ma(canvas);if(Tool_K.KPI == Tool_K.KPI_MACD) //绘制MACD或者KDJ{draw_macd(canvas);}else{draw_kdj(canvas);}draw_prices(canvas);}/** * 绘制K线中的价格 * @param canvas */private void draw_prices(Canvas canvas){Paint paint = new Paint();paint.setAntiAlias(true);paint.setStrokeWidth(1);paint.setTextSize(20);paint.setTextAlign(Align.RIGHT);paint.setColor(Color.WHITE);float diff = (Tool.bottomLine_k_port - Tool.topLine_k_port)/6; //6等分for(int i=0;i<7;i++){canvas.drawText(Tool_K.prices[i],Tool.startLine_k_port,Tool.topLine_k_port+(6-i)*diff-3, paint);}if(Tool_K.KPI == Tool_K.KPI_MACD){//MACDcanvas.drawText(Tool_K.macd_prices[0],Tool.startLine_k_port,Tool.bottomLine_k_port+17, paint);canvas.drawText(Tool_K.macd_prices[1],Tool.startLine_k_port,mid+8,paint);canvas.drawText(Tool_K.macd_prices[2],Tool.startLine_k_port,Tool.bottom_kpi_port-5, paint);}else{//KDJcanvas.drawText("100",Tool.startLine_k_port,Tool.bottomLine_k_port+15, paint);canvas.drawText("50",Tool.startLine_k_port,(Tool.bottom_kpi_port+Tool.bottomLine_k_port)/2+8, paint);canvas.drawText("0",Tool.startLine_k_port,Tool.bottom_kpi_port-5, paint);}}/** * 绘制K线 * @param canvas * @param list */private void draw_k3(Canvas canvas,ArrayList<KPointModel> list){Paint paint = new Paint();Resources res = Main.getInstance().getResources();paint.setAntiAlias(true);paint.setStrokeWidth(2);for(int i=0;i<list.size();i++){KPointModel point = list.get(i);if(point.getOpenY_port()>point.getCloseY_port()) //收盘坐标小于开盘坐标  收盘价格高  上涨{paint.setColor(res.getColor(R.color.k_red));canvas.drawLine(Tool_K.widths_port[i], point.getHighY_port(),Tool_K.widths_port[i], point.getCloseY_port(), paint);canvas.drawLine(Tool_K.widths_port[i], point.getOpenY_port(),Tool_K.widths_port[i], point.getLowY_port(), paint);canvas.drawRect(new RectF(Tool_K.widths_port[i]-Tool_K.each_width_port/2+1, point.getCloseY_port(),Tool_K.widths_port[i]+Tool_K.each_width_port/2-1, point.getOpenY_port()), paint);}else if(point.getOpenY_port()<point.getCloseY_port()){paint.setColor(res.getColor(R.color.k_green));canvas.drawLine(Tool_K.widths_port[i],point.getHighY_port(),Tool_K.widths_port[i],point.getOpenY_port(), paint);canvas.drawLine(Tool_K.widths_port[i],point.getCloseY_port(),Tool_K.widths_port[i],point.getLowY_port(), paint);canvas.drawRect(new RectF(Tool_K.widths_port[i]-Tool_K.each_width_port/2+1, point.getOpenY_port(),Tool_K.widths_port[i]+Tool_K.each_width_port/2-1, point.getCloseY_port()), paint);}else //持平时，我司业务逻辑视为红色，绘制3条线即可{paint.setColor(res.getColor(R.color.k_red));canvas.drawLine(Tool_K.widths_port[i],point.getHighY_port(),Tool_K.widths_port[i],point.getOpenY_port(), paint);canvas.drawLine(Tool_K.widths_port[i],point.getCloseY_port(),Tool_K.widths_port[i],point.getLowY_port(), paint);canvas.drawLine(Tool_K.widths_port[i]-Tool_K.each_width_port/2+1, point.getCloseY_port(), Tool_K.widths_port[i]+Tool_K.each_width_port/2-1, point.getCloseY_port(), paint);}}}private void draw_ma(Canvas canvas){Paint paint = new Paint();paint.setAntiAlias(true);paint.setStrokeWidth(Tool.strokeWidth);paint.setColor(res.getColor(R.color.white));canvas.drawLines(Tool_K.ma1_port, paint);paint.setColor(res.getColor(R.color.yellow));canvas.drawLines(Tool_K.ma2_port, paint);paint.setColor(res.getColor(R.color.purple));canvas.drawLines(Tool_K.ma3_port, paint);paint.setColor(res.getColor(R.color.blue2));canvas.drawLines(Tool_K.ma4_port, paint);}float mid;private void draw_macd(Canvas canvas){mid = Tool_K.get_pointY(0, Tool_K.KPI_MACD, Tool.STYPE_K_PORT);Paint paint = new Paint();paint.setAntiAlias(true);paint.setStrokeWidth(Tool.strokeWidth);for(int i=0;i<Tool_K.macd_data_port.length;i++){Path path = new Path();path.moveTo(Tool_K.widths_port[i]-Tool_K.each_width_port/2+1,mid);path.lineTo(Tool_K.widths_port[i]-Tool_K.each_width_port/2+1,Tool_K.macd_data_port[i]);path.lineTo(Tool_K.widths_port[i]+Tool_K.each_width_port/2-1,Tool_K.macd_data_port[i]);path.lineTo(Tool_K.widths_port[i]+Tool_K.each_width_port/2-1,mid);path.close();if(Tool_K.macd_data_port[i]<mid){paint.setColor(res.getColor(R.color.red2));}else{paint.setColor(res.getColor(R.color.green));}canvas.drawPath(path, paint);}paint.setColor(res.getColor(R.color.white));canvas.drawLines(Tool_K.diff_data_port, paint);  // 绘制diff线paint.setColor(res.getColor(R.color.yellow));canvas.drawLines(Tool_K.dea_data_port, paint);  //  绘制dea线Path path = new Path();path.moveTo(0,mid);path.lineTo(Tool_K.view_width,mid);PathEffect effects = new DashPathEffect(new float[] { 5, 5, 5, 5 }, 1);Paint paint1 = new Paint();paint1.setColor(Color.GRAY);paint1.setStrokeWidth(1);paint1.setPathEffect(effects);paint1.setStyle(Paint.Style.STROKE);canvas.drawPath(path, paint1);}private void draw_kdj(Canvas canvas){Paint paint = new Paint();paint.setAntiAlias(true);paint.setStrokeWidth(Tool.strokeWidth);paint.setColor(res.getColor(R.color.white));canvas.drawLines(Tool_K.k_data_port, paint);  // 绘制k线paint.setColor(res.getColor(R.color.yellow));canvas.drawLines(Tool_K.d_data_port, paint);  //  绘制d线paint.setColor(res.getColor(R.color.purple));canvas.drawLines(Tool_K.j_data_port, paint);  //  绘制j线Path path = new Path();path.moveTo(0,(Tool.bottom_kpi_port+Tool.bottomLine_k_port)/2);path.lineTo(Tool.stopLine_k_port,(Tool.bottom_kpi_port+Tool.bottomLine_k_port)/2);PathEffect effects = new DashPathEffect(new float[] { 5, 5, 5, 5 }, 1);Paint paint1 = new Paint();paint1.setColor(Color.GRAY);paint1.setStrokeWidth(1);paint1.setPathEffect(effects);paint1.setStyle(Paint.Style.STROKE);canvas.drawPath(path, paint1);}}