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);
 }

 @Override
 public 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MA
  draw_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)
  {//MACD
   canvas.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
  {//KDJ
   canvas.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);
 }
 
 
}

android 非框架 分时图和K线图分时图（四）

android 非框架分时图和K线图分时图（四）