1 /**
2 * 备注：3 * 作者：王莹4 * 时间：/1/19.5 * ~_~想睡觉了!!6 * (～o～)~zZ我想睡啦～7 * π_π?打瞌睡8 */
9
10 public class DrawLineView extendsView {11 /**
12 * 上下文13 */
14 private Context mContext = null;15 /**
16 * 画图区域的宽高17 */
18 private floatwidth, height;19 /**
20 * 纵坐标平均每一行的高度21 */
22 private floatfRowHeight;23 /**
24 * 横坐标平均每一列的宽带25 */
26 private float fColWidth = 0;27 /**纵向显示个数*/
28 //private static final int VERTICALCOUNT = 5;
29 /**横向显示个数*/
30 //private static final int HORIZONTALCOUNT = 7;
31 /**
32 * 固定要显示的利率33 */
34 //private static final int CONSTANT_DISPLAY_RATE = 8;
35 /**
36 * 横纵向字体大小单位dp37 */
38 private static final int TEXTSIZE = 12;39 /**
40 * 纵坐标、横坐标的字体画笔41 */
42 private Paint textPaint = null;43 /**
44 * 横坐标画笔45 */
46 private Paint horizontalPaint = null;47 /**
48 * 固定的虚线画笔49 */
50 private Paint dottedLinePaint = null;51 /**
52 * 画Y轴的刻度线53 */
54 private Paint yLinePaint = null;55 /**
56 * 画空心圆57 */
58 private Paint circlePaint = null;59 /**
60 * 圆的半径 单位dp61 */
62 private int circleRadius = 3;63 /**
64 * 折线画笔65 */
66 private Paint linePaint = null;67 private Paint innerPaint = null;68 /**
69 * 阴影画笔70 */
71 private Paint shadowPaint = null;72 /**
73 * 阴影走过的路径74 */
75 private Path shadowPath = null;76
77 private List yList = new ArrayList();78 private List yListtext = new ArrayList();79
80 private List xList = new ArrayList();81 /**
82 * Y轴的五个刻度83 */
84 private List yRateList = new ArrayList();85
86 /**
87 * Y轴最大值88 */
89 private float maxY = 0;90 /**
91 * 纵向设置的Y每一段的值92 */
93 private int verticalAnnualValueY = 0;94 /**
95 * 横行字体宽带96 */
97 private float horizontalTextWidth = 0;98
99 /**
100 * 横向起始位置101 */
102 private float xStart = 0;103 private float[] xPoint;104 private float[] yPoint;105
106 publicDrawLineView(Context context) {107 super(context);108 initWillUsed(context);109 }110
111 publicDrawLineView(Context context, AttributeSet attrs) {112 super(context, attrs);113 initWillUsed(context);114 }115
116 /**
117 * 初始化将使用到的参数118 */
119 private voidinitWillUsed(Context context) {120 mContext =context;121
122 textPaint = newPaint();123 textPaint.setColor(Color.parseColor("#B9C7DD"));124 textPaint.setAntiAlias(true);125 textPaint.setTextSize(ValueUtils.dip2px(mContext, TEXTSIZE));126
127 horizontalPaint = newPaint();128 horizontalPaint.setColor(Color.parseColor("#B9C7DD"));129 horizontalPaint.setAntiAlias(true);130 horizontalPaint.setStrokeWidth(1);131
132 yLinePaint = newPaint();133 yLinePaint.setColor(Color.parseColor("#B9C7DD"));134 yLinePaint.setAntiAlias(true);135
136 dottedLinePaint = newPaint();137 dottedLinePaint.setStyle(Paint.Style.STROKE);138 dottedLinePaint.setColor(Color.parseColor("#C5D1FF"));139 dottedLinePaint.setAntiAlias(true);140
141 circlePaint = newPaint();142 circlePaint.setColor(Color.parseColor("#6789FD"));143 circlePaint.setStyle(Paint.Style.STROKE);144 circlePaint.setAntiAlias(true);145 circlePaint.setStrokeWidth(1);146
147 linePaint = newPaint();148 linePaint.setColor(Color.parseColor("#6789FD"));149 linePaint.setStrokeWidth(2);150 linePaint.setAntiAlias(true);151
152 innerPaint = newPaint();153 innerPaint.setColor(Color.WHITE);154 innerPaint.setStyle(Paint.Style.FILL);155 innerPaint.setAntiAlias(true);156
157
158 }159
160 /**
161 * 设置将要绘制的数据162 */
163 public void setData(List xValuesList, List yValuesList, floatcurrMaxY) {164 this.xList =xValuesList;165 this.yList =yValuesList;166 yListtext.clear();167 yRateList.clear();168 for (int i = 0; i < yList.size(); i++) {169 yListtext.add(yList.get(i));170 }171 xPoint = new float[xList.size()];172 yPoint = new float[xList.size()];173
174 if (currMaxY / yList.size() == currMaxY %yList.size()) {175 verticalAnnualValueY = (int) currMaxY /yList.size();176 } else{177 verticalAnnualValueY = (int) currMaxY / yList.size() + 1;178 }179
180 maxY = yList.size() *verticalAnnualValueY;181
182
183 for (int i = yListtext.size(); i >= 1; i--) {184 yRateList.add(verticalAnnualValueY *i);185 }186 setWillNotDraw(false);187 }188
189 @Override190 protected voidonDraw(Canvas canvas) {191 super.onDraw(canvas);192 width =getWidth();193 height =getHeight();194 fRowHeight = (float) height / (yList.size()+1);195 xStart = 0;196 fColWidth = 0;197 shadowPaint = newPaint();198 shadowPaint.setAntiAlias(true);199 shadowPath = newPath();200 drawVertical(canvas);201
202 drawHorizontal(canvas);203
204 //drawDottedLine(canvas);
205
206 drawYLine(canvas);207
208 drawLine(canvas);209
210 drawCircle(canvas);211 }212
213 /**
214 * 画纵向数据215 */
216 private voiddrawVertical(Canvas canvas) {217 Integer temp=0;218 for (int i = 0; i < yRateList.size()-1; i++) {219 for (int j = i + 1; j < yRateList.size(); j++) {220 if (yRateList.get(i)< yRateList.get(j)) { //交换两数的位置
221 temp =yRateList.get(i);222 yRateList.set(i,yRateList.get(j));223 //yRateList.get(i) = yRateList.get(j);
224 yRateList.set(j,temp);225 //yRateList.get(j) = temp;
226 }227 }228 }229 // //降序230 //Collections.reverse(yRateList);
231 for (int i = 0; i < yRateList.size(); i++) {232 Integer verticalContent =yRateList.get(i);233 canvas.drawText(verticalContent + "", 0, i * fRowHeight +ValueUtils.dip2px(mContext, TEXTSIZE), textPaint);234
235 if (xStart < textPaint.measureText(verticalContent + "")) {236 xStart = textPaint.measureText(verticalContent + "");237 }238 }239 xStart = xStart * 3 / 2;240 }241
242 /**
243 * 画横向数据244 */
245 private voiddrawHorizontal(Canvas canvas) {246 for (int i = 0; i < xList.size(); i++) {247 String horizontalContent =xList.get(i);248 horizontalTextWidth =textPaint.measureText(horizontalContent);249 if (fColWidth == 0) {250 fColWidth = (width - xStart - horizontalTextWidth) / (xList.size() - 1);251 }252 canvas.drawText(horizontalContent, xStart + i * fColWidth - horizontalTextWidth / 2, yList.size() * fRowHeight + ValueUtils.dip2px(mContext, TEXTSIZE + 10), textPaint);253
254 //if (i == xList.size() - 1) {255 //canvas.drawLine(xStart, yList.size() * fRowHeight, fColWidth * i + horizontalTextWidth, yList.size() * fRowHeight, horizontalPaint);256 //}
257 }258 }259
260 ///**261 //* 画固定8%的虚线262 //*/263 //private void drawDottedLine(Canvas canvas) {264 //float dottedWidth = (maxY - CONSTANT_DISPLAY_RATE) * yList.size() * fRowHeight / maxY + ValueUtils.dip2px(mContext, TEXTSIZE);265 //Path path = new Path();266 //path.moveTo(xStart, dottedWidth);267 //path.lineTo(fColWidth * (xList.size() - 1) + horizontalTextWidth, dottedWidth);268 //PathEffect effects = new DashPathEffect(new float[]{4, 4, 4, 4}, 4f);269 //dottedLinePaint.setPathEffect(effects);270 //canvas.drawPath(path, dottedLinePaint);271 //}
272
273 /**
274 * 画Y轴的刻度线275 */
276 private voiddrawYLine(Canvas canvas) {277 for (int i = 0; i < yList.size(); i++) {278 canvas.drawLine(xStart, i * fRowHeight + ValueUtils.dip2px(mContext, TEXTSIZE), fColWidth * (xList.size()), i * fRowHeight +ValueUtils.dip2px(mContext, TEXTSIZE), yLinePaint);279 }280 }281
282 /**
283 * 画空心圆284 */
285 private voiddrawCircle(Canvas canvas) {286 for (int i = 0; i < xList.size(); i++) {287 canvas.drawCircle(xPoint[i], yPoint[i], ValueUtils.dip2px(mContext, circleRadius), circlePaint);288
289 float innerValue = ValueUtils.dip2px(mContext, circleRadius) - 1.6F;290
291 innerPaint.setColor(Color.WHITE);292 innerPaint.setStyle(Paint.Style.FILL);293 innerPaint.setAntiAlias(true);294 canvas.drawCircle(xPoint[i], yPoint[i], innerValue, innerPaint);295 }296 }297
298 /**
299 * 画折线 和 阴影300 */
301 private voiddrawLine(Canvas canvas) {302 int maxHeightPoint = 0;//记录最高的点
303 float maxHeight = 0;304 for (int i = 0; i < xList.size(); i++) {305 xPoint[i] = xStart + i *fColWidth;306
307 if (maxHeight
313 if (i > 0) {314 canvas.drawLine(xPoint[i - 1], yPoint[i - 1], xPoint[i], yPoint[i], linePaint);315 if (i == 1) {316 shadowPath.moveTo(xPoint[i - 1], yPoint[i - 1]);317 }318 shadowPath.lineTo(xPoint[i], yPoint[i]);319 }320 }321 shadowPath.lineTo(xPoint[xList.size() - 1], yList.size() *fRowHeight);322 shadowPath.lineTo(xPoint[0], yList.size() *fRowHeight);323 shadowPath.close();324 Shader lShader = new LinearGradient(0, yPoint[maxHeightPoint], 0, yList.size() * fRowHeight, Color.parseColor("#BFC5D1FF"), Color.parseColor("#BFFDFDFF"), Shader.TileMode.REPEAT);325 shadowPaint.setShader(lShader);326 canvas.drawPath(shadowPath, shadowPaint);327 }328 }
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