/*绘制三条横线*/for(int i=0;i<3;i++){ canvas.drawLine(textWide, mLineYs[i], totalWidth, mLineYs[i], mPaintLine);}/*绘制八条竖线*/for(int i=0;i<8;i++){ canvas.drawLine(mLineXs[i], 0, mLineXs[i], totalHeight, mPaintLine);} /*绘制第一条折线的路径*/for (int i = 0; i < mPerformance_1.length - 1; i++) { /*折线图的折线的画笔设置粗一点*/ mPaintLine.setStrokeWidth(5); /*计算当前节点的坐标值*/ float prePointX =mLineXs[i]; float prePointY =mLineYs[2] - (mLineYs[2] - mLineYs[mPerformance_1[i].type]) * animCurrentValue; /*计算下一个节点的坐标值*/ float nextPointX=mLineXs[i + 1]; float nextPointY=mLineYs[2] - (mLineYs[2] - mLineYs[mPerformance_1[i + 1].type]) * animCurrentValue; /*连接当前坐标和下一个坐标，绘制线段*/ canvas.drawLine(prePointX, prePointY, nextPointX, nextPointY, mPaintLine1); /*当前节点坐标处绘制小圆*/ canvas.drawCircle(prePointX, prePointY, mSmallDotRadius, mPointPaint);} public class LineChartView extends View { private Context context; /*动画插值器*/ DecelerateInterpolator mDecelerateInterpolator = new DecelerateInterpolator(); /*动画刷新的次数*/ private int mDuration = 10; /*当前动画进度值*/ private int mCurrentTime = 0; private Performance[] mPerformance_1, mPerformance_2; /*两条折线的颜色*/ private int mLineColor1, mLineColor2; /*绘制表头文字画笔*/ private Paint mPaintText = new Paint(); /*绘制表格的画笔*/ private Paint mPaintLine = new Paint(); /*第一条折线的画笔*/ private Paint mPaintLine1 =new Paint(); /*第二条折线的画笔*/ private Paint mPaintLine2 =new Paint(); /*坐标点的小圆点画笔*/ private Paint mPointPaint = new Paint(); private float mSmallDotRadius = 4; private TypedValue typedValue; private int mPaintClolor; /*Handler刷新界面产生动画效果*/ private Handler mHandler = new Handler(); private Runnable mAnimation = new Runnable() { @Override public void run() { if (mCurrentTime < mDuration) { mCurrentTime++; LineChartView.this.invalidate(); } } }; public LineChartView(Context context) { super(context); this.context=context; init(); } public LineChartView(Context context, AttributeSet attrs) { super(context, attrs); this.context=context; init(); } public LineChartView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); this.context=context; init(); } public enum Performance { WIN(0), DRAW(1), LOSE(2); public int type; Performance(int type) { this.type = type; } } public void setPerformances(Performance[] performance1, Performance[] performance2) { if (performance1 == null) { performance1 = new Performance[0]; } if (performance2 == null) { performance2 = new Performance[0]; } mPerformance_1 = Arrays.copyOf(performance1, performance1.length > 8 ? 8 : performance1.length); mPerformance_2 = Arrays.copyOf(performance2, performance2.length > 8 ? 8 : performance2.length); if (isShown()) { mCurrentTime = 0; this.invalidate(); } } /** * 设置折线1的颜色 * * @param mLineColor1 */ public void setLineColor1(int mLineColor1) { this.mLineColor1 = mLineColor1; } /** * 设置折线2的颜色 * * @param mLineColor2 */ public void setLineColor2(int mLineColor2) { this.mLineColor2 = mLineColor2; } private void init() { mLineColor1=Color.BLUE; mLineColor2 = Color.GREEN; typedValue=new TypedValue(); context.getTheme().resolveAttribute(R.attr.title_bar,typedValue,true); mPaintClolor =getResources().getColor(typedValue.resourceId); final LineChartView.Performance[] performances1=new LineChartView.Performance[8]; final LineChartView.Performance[] performances2=new LineChartView.Performance[8]; final Random random=new Random(); for(int i=0;i<performances1.length;i++){ switch (random.nextInt(2016)%3){ case 0: performances1[i]= LineChartView.Performance.WIN; break; case 1: performances1[i]= LineChartView.Performance.DRAW; break; case 2: performances1[i]= LineChartView.Performance.LOSE; break; default: performances1[i]= LineChartView.Performance.LOSE; break; } switch (random.nextInt(2016)%3){ case 0: performances2[i]= LineChartView.Performance.WIN; break; case 1: performances2[i]= LineChartView.Performance.DRAW; break; case 2: performances2[i]= LineChartView.Performance.LOSE; break; default: performances1[i]= LineChartView.Performance.LOSE; break; } } setPerformances(performances1,performances2); } /** * @param canvas */ @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); /*获取控件总宽高*/ float totalWidth = getWidth(); float totalHeight = getHeight(); /*左边取总宽度的八分之一绘制表格头部*/ float textWide = totalWidth / 8; /*左边留一点空白*/ float left_offset = 10; /*折线图的总宽度等于控件的总宽度减去表头和留白*/ float chartWide = totalWidth - textWide - left_offset; /*一共三行，设置每一行的垂直坐标*/ float[] mLineYs = new float[]{totalHeight / 8, totalHeight / 2, totalHeight * 7 / 8}; /*一共八列，设置每一列的水平坐标*/ float[] mLineXs = new float[]{ textWide + left_offset + chartWide * 0 / 8, textWide + left_offset + chartWide * 1 / 8, textWide + left_offset + chartWide * 2 / 8, textWide + left_offset + chartWide * 3 / 8, textWide + left_offset + chartWide * 4 / 8, textWide + left_offset + chartWide * 5 / 8, textWide + left_offset + chartWide * 6 / 8, textWide + left_offset + chartWide * 7 / 8, }; /*绘制表头文字*/ mPaintText.setStyle(Paint.Style.FILL); mPaintText.setColor(mPaintClolor); mPaintText.setAlpha(226); mPaintText.setTextSize(28); /*从中间开始绘制*/ mPaintText.setTextAlign(Paint.Align.CENTER); /*测量文字大小，并计算偏移量*/ Paint.FontMetrics fontMetrics = mPaintText.getFontMetrics(); float textBaseLineOffset = (fontMetrics.bottom - fontMetrics.top) / 2 - fontMetrics.bottom; canvas.drawText("胜场", textWide / 2, mLineYs[0] + textBaseLineOffset, mPaintText); canvas.drawText("平局", textWide / 2, mLineYs[1] + textBaseLineOffset, mPaintText); canvas.drawText("负场", textWide / 2, mLineYs[2] + textBaseLineOffset, mPaintText); /*绘制表格画笔设置*/ mPaintLine.setStyle(Paint.Style.STROKE); mPaintLine.setAntiAlias(true); mPaintLine.setColor(mPaintClolor); mPaintLine.setAlpha(80); mPaintLine.setStrokeWidth(1); /*开始绘制表格*/ /*绘制三条横线*/ for(int i=0;i<3;i++){ canvas.drawLine(textWide, mLineYs[i], totalWidth, mLineYs[i], mPaintLine); } /*绘制八条竖线*/ for(int i=0;i<8;i++){ canvas.drawLine(mLineXs[i], 0, mLineXs[i], totalHeight, mPaintLine); } /*折线图画笔设置*/ mPaintLine1.setStyle(Paint.Style.STROKE); /*设置透明度，取值范围为0~255，数值越小越透明，0表示完全透明*/ mPaintLine1.setAlpha(0); mPaintLine1.setAntiAlias(true); mPaintLine1.setColor(mLineColor1); mPaintLine1.setStrokeWidth(5); mPaintLine2.setStyle(Paint.Style.STROKE); /*设置透明度，取值范围为0~255，数值越小越透明，0表示完全透明*/ mPaintLine2.setAlpha(0); mPaintLine2.setAntiAlias(true); mPaintLine2.setColor(mLineColor2); mPaintLine2.setStrokeWidth(5); if (typedValue.resourceId==R.color.white){ /*PorterDuff.Mode.SCREEN 上下层都显示。*/ mPaintLine2.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SCREEN)); mPaintLine1.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SCREEN)); }else { /*PorterDuff.Mode.DARKEN 上下层都显示。变暗*/ mPaintLine2.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DARKEN)); mPaintLine1.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DARKEN)); } /*画节点处的小圆点的画笔设置*/ mPointPaint.setStyle(Paint.Style.STROKE); mPointPaint.setAntiAlias(true); mPointPaint.setColor(mPaintClolor); /*计算当前动画进度对应的数值*/ float animCurrentValue = mDecelerateInterpolator.getInterpolation(1.0f * mCurrentTime / mDuration); mPaintLine.setColor(mLineColor1); /*绘制第一条折线的路径*/ for (int i = 0; i < mPerformance_1.length - 1; i++) { /*折线图的折线的画笔设置粗一点*/ mPaintLine.setStrokeWidth(5); /*计算当前节点的坐标值*/ float prePointX =mLineXs[i]; float prePointY =mLineYs[2] - (mLineYs[2] - mLineYs[mPerformance_1[i].type]) * animCurrentValue; /*计算下一个节点的坐标值*/ float nextPointX=mLineXs[i + 1]; float nextPointY=mLineYs[2] - (mLineYs[2] - mLineYs[mPerformance_1[i + 1].type]) * animCurrentValue; /*连接当前坐标和下一个坐标，绘制线段*/ canvas.drawLine(prePointX, prePointY, nextPointX, nextPointY, mPaintLine1); /*当前节点坐标处绘制小圆*/ canvas.drawCircle(prePointX, prePointY, mSmallDotRadius, mPointPaint); } /*第一个折线图的最后一个节点的坐标*/ float lastPointX=mLineXs[mPerformance_1.length - 1]; float lastPointY= mLineYs[2] - (mLineYs[2] - mLineYs[mPerformance_1[mPerformance_1.length - 1].type]) * animCurrentValue; /*绘制最后一个节点的外围小圆*/ canvas.drawCircle(lastPointX,lastPointY ,mSmallDotRadius, mPointPaint); /*绘制第二条折线*/ mPaintLine.setColor(mLineColor2); for (int i = 0; i < mPerformance_2.length - 1; i++) { /*折线图的折线的画笔设置粗一点*/ mPaintLine.setStrokeWidth(5); /*计算当前节点的坐标值*/ float prePointX =mLineXs[i]; float prePointY =mLineYs[2] - (mLineYs[2] - mLineYs[mPerformance_2[i].type]) * animCurrentValue; /*计算下一个节点的坐标值*/ float nextPointX=mLineXs[i + 1]; float nextPointY=mLineYs[2] - (mLineYs[2] - mLineYs[mPerformance_2[i + 1].type]) * animCurrentValue; /*连接当前坐标和下一个坐标，绘制线段*/ canvas.drawLine(prePointX, prePointY, nextPointX, nextPointY, mPaintLine2); /*当前节点坐标处绘制小圆*/ canvas.drawCircle(prePointX, prePointY, mSmallDotRadius, mPointPaint); } /*第一个折线图的最后一个节点的坐标*/ lastPointX=mLineXs[mPerformance_2.length - 1]; lastPointY= mLineYs[2] - (mLineYs[2] - mLineYs[mPerformance_2[mPerformance_2.length - 1].type]) * animCurrentValue; /*绘制最后一个节点的外围小圆*/ canvas.drawCircle(lastPointX,lastPointY ,mSmallDotRadius, mPointPaint); mHandler.postDelayed(mAnimation, 20); }} 
