Android中绘制的两个天气相关的View

文章目录

  • 一、前言
  • 二、降雨的代码
  • 三、风向代码

一、前言

开发天气相关软件时候，做了两个自定义View，这里进行记录，由于涉及类较多，这里仅包含核心代码，需要调整后才可以运行，自定义View范围仅包含网格相关UI。需要注意的是横向坐标需要25个数据，来表示一天24小时。最后一个数据表示0点，效果如下:
降雨的效果：
该效果可以通过滑动来更新顶部日期和详细降雨信息。自定义View包含天气图标、网格、横竖坐标
在这里插入图片描述
风向效果:
该效果可以通过滑动来更新顶部日期和详细降雨信息。自定义View包含天气图标、网格、横竖坐标
在这里插入图片描述

二、降雨的代码

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.PointF;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;import com.special.aspire.weather.R;import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;/*** Created by YM on 2023/7/28.*/
public class WeatherColumn extends View {private float sumHeight;//总控件的高度private float sumWidth;// 总空间的宽度private Paint linePaint;//网格横线线的画笔private Paint verticalDividerLinePaint;//网格线中垂直分割线的画笔private Paint verticalDividerLinePaint2;//网格线中第二条垂直分割线的画笔private Paint mColumnPaint;//圆柱的画笔private Path mColumnPath;//圆柱的路径private Paint textPaint;//文字的画笔private Paint topImagePaint;//顶部图标的画笔private List<Float> mPrecipitationList;//降水private List<String> mDateTimeList;//底部的时间private List<String> mCodeList;//天气代码private float oneHeight; //每一个小段所要分成的高private float oneWidth;//每一个小段所要分成的宽private float buttomHeiht; //给底部一排日期预留出的时间private Path baseLinePath;//折线路径private List<PointF> xyList;//储存定好的坐标点的集合private List<Integer> topImageList = new ArrayList<>();private List<Boolean> weatherEnableList = new ArrayList<>();// Y轴显示的列表 必须是9个private final List<String> yDataList = new ArrayList<>();// 设置进来的数据是否有效// 例：windSpeedIsEnableList  false false  true true  true true true false false// firstIndicateIndex 为2  secondIndicateIndex = 6private int beforeIndicateIndex = -1;private int afterIndicateIndex = -1;private int ratioY = 25;private float unitRation = 10;// 不同降雨单位之间的比值private RainData rainData;public WeatherColumn(Context context) {super(context);initPaint();initYDataList();}public WeatherColumn(Context context, AttributeSet attrs) {super(context, attrs);initPaint();initYDataList();}private void initYDataList() {ratioY = 17;if (yDataList.isEmpty()) {for (int i = 0; i < 17; i++) {if (i % 2 == 0) {yDataList.add(i + "");}}}}public void setYDataListIn() {ratioY = 25;yDataList.clear();unitRation = 100f;for (int i = 0; i <= ratioY; i += 5) {float value = i / unitRation;yDataList.add(value + "in");}invalidate();}public void setYDataListMm() {ratioY = 25;yDataList.clear();unitRation = 10f;for (int i = 0; i <= ratioY; i += 10) {float value = i / unitRation;yDataList.add(value + "mm");}invalidate();}/*** 设置纵坐标显示刻度* 必须是9个** @param unit 降雨单位,默认in*/public void setYDataListUnit(String unit) {switch (unit) {case "mm":setYDataListMm();break;case "in":setYDataListIn();break;}}/*** 初始化画笔** @linpaint 线条画笔*/private void initPaint() {//画线的画笔linePaint = new Paint();linePaint.setColor(Color.parseColor("#1AFFFFFF"));linePaint.setAntiAlias(true);linePaint.setTextSize(dp2px(getContext(), 12));linePaint.setStrokeWidth(dp2px(getContext(), 1));verticalDividerLinePaint = new Paint();verticalDividerLinePaint.setColor(Color.parseColor("#FF58FFBE"));verticalDividerLinePaint.setAntiAlias(true);verticalDividerLinePaint.setStrokeWidth(dp2px(getContext(), 2));verticalDividerLinePaint2 = new Paint();verticalDividerLinePaint2.setColor(Color.parseColor("#FF58FFBE"));verticalDividerLinePaint2.setAntiAlias(true);verticalDividerLinePaint2.setStrokeWidth(dp2px(getContext(), 2));//文字的画笔textPaint = new Paint();textPaint.setColor(Color.WHITE);textPaint.setAntiAlias(true);textPaint.setTextSize(dp2px(getContext(), 14));buttomHeiht = dp2px(35);//线距离底部高度mColumnPaint = new Paint(Paint.ANTI_ALIAS_FLAG);mColumnPaint.setColor(Color.parseColor("#FF58FFBE"));mColumnPaint.setStrokeWidth(dp2px(getContext(), 2));mColumnPaint.setStyle(Paint.Style.FILL);mColumnPath = new Path();topImagePaint = new Paint(Paint.ANTI_ALIAS_FLAG);}@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {super.onMeasure(widthMeasureSpec, heightMeasureSpec);sumHeight = getMeasuredHeight();sumWidth = getMeasuredWidth();}@Overrideprotected void onSizeChanged(int w, int h, int oldw, int oldh) {super.onSizeChanged(w, h, oldw, oldh);}private void measure() {String text = "min";Rect rect = new Rect();textPaint.getTextBounds(text, 0, text.length(), rect);// 总共分几个高度oneHeight = (sumHeight - buttomHeiht) / ratioY;TOP_MARGIN = rect.height();oneWidth = (sumWidth - RIGHT_MARGIN - LEFT_WIDTH) / HOR_SIZE;}int RIGHT_MARGIN = dp2px(40);int LEFT_WIDTH = dp2px(15);//距离左边宽度int TOP_MARGIN = dp2px(13);private final int HOR_SIZE = 25;private float topLineY = 0;//网格顶部的Y坐标private float bottomLineY = 0;//网格底部的Y坐标/*** 设置数据* WindLineData 里的所有集合数量必须是25个 从00点  到24点*/public void setWindData(RainData data) {this.mPrecipitationList = data.getPrecipitation();this.mDateTimeList = data.getDateTimeList();this.topImageList = data.getWeatherImageResList();this.weatherEnableList = data.getWeatherIsEnableList();this.mCodeList = data.getCodeList();beforeIndicateIndex = -1;afterIndicateIndex = -1;for (int i = 0; i < this.weatherEnableList.size(); i++) {Boolean thisValue = this.weatherEnableList.get(i);// 当前为false 下一个为trueif (!thisValue && i != this.weatherEnableList.size() - 1 && this.weatherEnableList.get(i + 1)) {beforeIndicateIndex = i + 1;}// 当前为true 下一个为falseif (thisValue && i != this.weatherEnableList.size() - 1 && !this.weatherEnableList.get(i + 1)) {afterIndicateIndex = i;}}if (this.mPrecipitationList != null && this.mPrecipitationList.size() > 0 && mDateTimeList != null && mDateTimeList.size() > 0) {invalidate();}}@Overrideprotected void onDraw(Canvas canvas) {super.onDraw(canvas);if (mPrecipitationList == null || mDateTimeList == null) return;measure();toGetXy();//获取x和y的坐标toDrawColumn(canvas);drawWindImg(canvas);drawTouchLine(canvas);}private void toGetXy() {xyList = new ArrayList<>();for (int i = 0; i < mPrecipitationList.size(); i++) {
//            float x = i * (HOR_SIZE * 1.0f / (mPrecipitationList.size() - 1)) * oneWidth;float x = i * oneWidth;float prec = mPrecipitationList.get(i) * unitRation;//降雨量为0.01mm的float y = (sumHeight - (oneHeight * prec));xyList.add(new PointF(x + LEFT_WIDTH, y - buttomHeiht));}}/***/private void toDrawColumn(Canvas canvas) {if (xyList == null || xyList.size() == 0) {return;}drawLine(canvas);List<PointF> NewPoints = new ArrayList<>(xyList);baseLinePath = new Path();baseLinePath.moveTo(NewPoints.get(0).x, NewPoints.get(0).y);for (int i = 1; i < NewPoints.size(); i++) {PointF p = NewPoints.get(i);int colorRes = RainUtil.getWeatherColor(mCodeList.get(i),mDateTimeList.get(i));int color = getResources().getColor(colorRes);drawColumn(canvas, p, color);}//绘制底部文字for (int i = 0; i < NewPoints.size(); i++) {float x = NewPoints.get(i).x;Rect rectf = new Rect();textPaint.setColor(Color.WHITE);textPaint.getTextBounds(mDateTimeList.get(i), 0, mDateTimeList.get(i).length(), rectf);// 只画 00  06 12 18 这几个标志if (i % 6 == 0 && i != NewPoints.size() - 1) {canvas.drawText(mDateTimeList.get(i), x - rectf.width() / 2f, sumHeight - dp2px(18), textPaint);//画最下方的字体}}}private Path touchLinePath = new Path();/*** 画触摸线* @param canvas*/private void drawTouchLine(Canvas canvas) {if (currentTouchX == -1) {verticalDividerLinePaint.setColor(Color.parseColor("#FF58FFBE"));canvasDividerLine(canvas);return;}verticalDividerLinePaint.setColor(Color.parseColor("#7E58FFBE"));canvas.drawLine(currentTouchX,topLineY,currentTouchX,bottomLineY,verticalDividerLinePaint2);}/*** 网格分割线* 书写右侧垂直标注动文字* @param canvas*/private void drawLine(Canvas canvas) {textPaint.setColor(Color.parseColor("#B3FFFFFF"));int dividerTextStartX = (int) sumWidth - RIGHT_MARGIN;int startX = 0;int stopX = 0;if (xyList.size() != 0) {startX = (int) xyList.get(0).x;stopX = (int) xyList.get(xyList.size() - 1).x;}
//        String text = "0";float ratioHeight = (sumHeight - buttomHeiht) / yDataList.size();topLineY = buttomHeiht;bottomLineY = ratioHeight * (yDataList.size() - 1) + buttomHeiht;//画横线for (int i = 0; i < yDataList.size(); i++) {//因为横线是从y轴开始画的，开始Y坐标为0，要留出画图片的空间，这里随便取一个值，暂时取buttomHeihtString text = yDataList.get(yDataList.size() - i - 1);//倒叙取值float y5 = ratioHeight * i + buttomHeiht;//可绘制高度除于总横线的数量，得到每一份绘制高度，然后乘以i，得到每一条横线的高度canvas.drawText(text, dividerTextStartX, y5, textPaint);canvas.drawLine(startX, y5, stopX, y5, linePaint);}// 画竖线for (int i = 0; i < xyList.size(); i++) {//  // 补充最后一条线if (i % 6 == 0 || i == xyList.size() - 1) {  // 一共出4条竖线 一共24个数据canvas.drawLine(xyList.get(i).x, topLineY, xyList.get(i).x, bottomLineY, linePaint);}}Log.e("YM---->","drawLine-->beforeIndicateIndex:"+beforeIndicateIndex+"--->afterIndicateIndex:"+afterIndicateIndex);canvasDividerLine(canvas);}private void canvasDividerLine(Canvas canvas){//        if (currentTouchX != -1) {//手指滑动过程中，该分割线不显示
//            return;
//        }//这里绘制左侧阴影部分与右侧非阴影部分的分割线if (beforeIndicateIndex != -1) {canvas.drawLine(xyList.get(beforeIndicateIndex).x, topLineY, xyList.get(beforeIndicateIndex).x, bottomLineY, verticalDividerLinePaint);}if (afterIndicateIndex != -1) {canvas.drawLine(xyList.get(afterIndicateIndex).x, topLineY, xyList.get(afterIndicateIndex).x, bottomLineY, verticalDividerLinePaint);}}public int dp2px(float dp) {final float scale = this.getResources().getDisplayMetrics().density;return (int) (dp * scale + 0.5f);}private final Map<Integer, Bitmap> bitmaps = new HashMap<>();@SuppressLint("SuspiciousIndentation")public void drawWindImg(Canvas canvas) {for (int i = 0; i < topImageList.size(); i++) {if (i % 2 != 0) {// 隔一个画一个continue;}Bitmap bmp;if (bitmaps.containsKey(topImageList.get(i))) {bmp = bitmaps.get(topImageList.get(i));} else {BitmapFactory.Options options = new BitmapFactory.Options();options.inJustDecodeBounds = true;bmp = BitmapFactory.decodeResource(getResources(), topImageList.get(i));bmp = Bitmap.createScaledBitmap(bmp, dp2px(24), dp2px(24), false);bitmaps.put(topImageList.get(i), bmp);}// 有效值才渲染图标if (i >= beforeIndicateIndex && (afterIndicateIndex == -1 || i <= afterIndicateIndex)) {canvas.drawBitmap(bmp, xyList.get(i).x - bmp.getWidth() / 2f, 0, topImagePaint);}}}//画一个顶部为圆角的矩形public void drawColumn(Canvas canvas, PointF pointF, int color) {float round = dp2px(4);float width = dp2px(6);float startX = pointF.x - oneWidth / 2; //减横向半个位置的宽度，否则会超过画布float endX = startX + width;float startY = pointF.y;float endY = bottomLineY;mColumnPaint.setColor(color);if (startY == endY) { //如果开始的Y坐标与结束的Y坐标相同，说明今天是晴天return;}else if (startY + round > endY){//开始的Y坐标加上半圆的Y坐标 大于 结束的Y坐标，说明有雨，但是雨不大, 这时候稍微画一点痕迹表示有雨canvas.drawRoundRect(startX, endY - round, endX, endY, round, round, mColumnPaint);return;}mColumnPath.reset();mColumnPath.moveTo(startX + round, startY); // 移动到左上角圆角的起点mColumnPath.lineTo(endX - round, startY); // 绘制顶边mColumnPath.quadTo(endX, startY, endX, startY + round); // 绘制右上角圆角mColumnPath.lineTo(startX + width, endY); // 绘制右边mColumnPath.lineTo(startX, endY); // 绘制底边mColumnPath.lineTo(startX, startY + round); // 绘制左边mColumnPath.quadTo(startX, startY, startX + round, startY); // 绘制左上角圆角mColumnPath.close();canvas.drawPath(mColumnPath, mColumnPaint);}public int dp2px(Context context, float dp) {final float scale = context.getResources().getDisplayMetrics().density;return (int) (dp * scale + 0.5f);}public float dp2px(Resources resources, float dp) {final float scale = resources.getDisplayMetrics().density;return dp * scale + 0.5f;}public float sp2px(Resources resources, float sp) {final float scale = resources.getDisplayMetrics().scaledDensity;return sp * scale;}private int getColumnColor(String code){return R.color.color_4D898989;}//    private Boolean isTouching = false;private float currentTouchX = -1;private float lastTouchX = -1;@Overridepublic boolean onTouchEvent(MotionEvent event) {if (xyList == null) {return super.onTouchEvent(event);}switch (event.getAction()) {case MotionEvent.ACTION_DOWN:getParent().requestDisallowInterceptTouchEvent(true);return true;case MotionEvent.ACTION_MOVE:currentTouchX = event.getX();if (beforeIndicateIndex != -1) {currentTouchX = Math.max(xyList.get(beforeIndicateIndex).x, currentTouchX);}if (afterIndicateIndex != -1) {currentTouchX = Math.min(xyList.get(afterIndicateIndex).x, currentTouchX);}if (currentTouchX <= xyList.get(0).x) {currentTouchX = xyList.get(0).x;} else if (currentTouchX >= xyList.get(xyList.size() - 1).x) {currentTouchX = xyList.get(xyList.size() - 1).x;}touchLinePath.reset();touchLinePath.moveTo(currentTouchX, (sumHeight - (oneHeight * 0)) - buttomHeiht);touchLinePath.lineTo(currentTouchX, (sumHeight - (oneHeight * yDataList.size())) - buttomHeiht);touchLinePath.lineTo(currentTouchX + 3, (sumHeight - (oneHeight * yDataList.size())) - buttomHeiht);touchLinePath.moveTo(currentTouchX + 3, (sumHeight - (oneHeight * 0)) - buttomHeiht);touchLinePath.close();// 限制更新频率if (Math.abs(lastTouchX - currentTouchX) >= 6) {lastTouchX = currentTouchX;if (onTouchPositionChange != null) {onTouchPositionChange.onChange((currentTouchX - xyList.get(0).x) / (xyList.get(xyList.size() - 1).x - xyList.get(0).x));}invalidate();}break;case MotionEvent.ACTION_CANCEL:case MotionEvent.ACTION_UP:getParent().requestDisallowInterceptTouchEvent(false);currentTouchX = -1;if (onTouchPositionChange != null) {onTouchPositionChange.onTouchUp();}invalidate();break;}
//        invalidate();return super.onTouchEvent(event);}public static class RainData {// 天气数据是否可用private List<Boolean> weatherIsEnableList;//降水private List<Float> precipitation;// 时间private List<String> dateTimeList;private List<String> codeList;// 天气图标private List<Integer> weatherImageResList;public List<Boolean> getWeatherIsEnableList() {return weatherIsEnableList;}public List<Float> getPrecipitation() {return precipitation;}public List<String> getDateTimeList() {return dateTimeList;}public List<Integer> getWeatherImageResList() {return weatherImageResList;}public void setWeatherIsEnableList(List<Boolean> weatherIsEnableList) {this.weatherIsEnableList = weatherIsEnableList;}public void setPrecipitation(List<Float> precipitation) {this.precipitation = precipitation;}public void setDateTimeList(List<String> dateTimeList) {this.dateTimeList = dateTimeList;}public void setWeatherImageResList(List<Integer> winImageResList) {this.weatherImageResList = winImageResList;}public List<String> getCodeList() {return codeList;}public void setCodeList(List<String> codeList) {this.codeList = codeList;}}private OnTouchPositionChange onTouchPositionChange;public void setOnTouchPositionChange(OnTouchPositionChange onTouchPositionChange) {this.onTouchPositionChange = onTouchPositionChange;}public interface OnTouchPositionChange {// 进度从0到1 0代表0点 1 代表24点void onChange(float position);void onTouchUp();}
}

三、风向代码

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.LinearGradient;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.PointF;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Shader;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;import androidx.annotation.StringRes;import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;/*** Created by wangchang on 2019/4/29.*/
public class WindWaveLine extends View {private float sumHeight;//总控件的高度private float sumWidth;// 总空间的宽度private float maxTime;//最大的时间 用来划分单位的 最小就是20 X1.2是为了给上方和下方预留空间private Paint linePaint;//网格横线线的画笔private Paint verticalDividerLinePaint;//网格线中垂直分割线的画笔private Paint verticalDividerLinePaint2;//网格线中第二条垂直分割线的画笔private Paint mPaint;//曲线画笔private Paint circlePaint;//第一个圆点画笔，该圆点不会动private Paint circlePaint2;//第二个圆点画笔, 长按后会动private Paint textPaint;//文字的画笔private Paint topImagePaint;//顶部风向图标的画笔private List<Float> mWindSpeedList;//风速private List<String> mDateTimeList;//底部的时间private float oneHeight; //每一个小段所要分成的高private float oneWidth;//每一个小段所要分成的宽private float buttomHeiht; //给底部一排日期预留出的时间private Path baseLinePath;//折线路径private float smoothness = 0.27f; //折线的弯曲率private Paint baseLeftShadow;//折线下的阴影的画笔private Paint baseShadow;//折线下的阴影的画笔private List<PointF> xyList;//储存定好的坐标点的集合private List<Integer> topImageList = new ArrayList<>();private List<Boolean> windEnableList = new ArrayList<>();// Y轴显示的列表 必须是9个private List<String> yDataList = new ArrayList<>();// 设置进来的数据是否有效// 例：windSpeedIsEnableList  false false  true true  true true true false false// firstIndicateIndex 为2  secondIndicateIndex = 6private int beforeIndicateIndex = -1;private int afterIndicateIndex = -1;private WindLWaveineData windLWaveineData;private String noDataDesc = "";// 左侧无数据的文字描述public WindWaveLine(Context context) {super(context);initPaint();initYDataList();}public WindWaveLine(Context context, AttributeSet attrs) {super(context, attrs);initPaint();initYDataList();}private void initYDataList() {if (yDataList.isEmpty()) {for (int i = 0; i < 17; i++) {if (i % 2 == 0) {yDataList.add(i + "");}}}}public void setYDataListMph() {yDataList.clear();for (int i = 0; i <= 40; i += 5) {yDataList.add(i + "");}invalidate();}public void setYDataListKmh() {yDataList.clear();for (int i = 0; i <= 80; i += 10) {yDataList.add(i + "");}invalidate();}/*** 设置纵坐标显示刻度* 必须是9个** @param unit 风速单位,默认m/s*/public void setYDataListUnit(String unit) {switch (unit) {case "km/h":setYDataListKmh();break;case "mph":setYDataListMph();break;}}public void setNoDataDesc(String noDataDesc){this.noDataDesc = noDataDesc;invalidate();}public void setNoDataDesc(@StringRes int noDataDescId){this.noDataDesc = getResources().getString(noDataDescId);invalidate();}/*** 初始化画笔** @linpaint 线条画笔*/private void initPaint() {//画线的画笔linePaint = new Paint();linePaint.setColor(Color.parseColor("#1AFFFFFF"));linePaint.setAntiAlias(true);linePaint.setTextSize(dp2px(getContext(), 12));linePaint.setStrokeWidth(dp2px(getContext(), 1));verticalDividerLinePaint = new Paint();verticalDividerLinePaint.setColor(Color.parseColor("#1AFFFFFF"));verticalDividerLinePaint.setAntiAlias(true);verticalDividerLinePaint.setStrokeWidth(dp2px(getContext(), 2));verticalDividerLinePaint2 = new Paint();verticalDividerLinePaint2.setColor(Color.parseColor("#FF2D9BFE"));verticalDividerLinePaint2.setAntiAlias(true);verticalDividerLinePaint2.setStrokeWidth(dp2px(getContext(), 2));//文字的画笔textPaint = new Paint();textPaint.setColor(Color.WHITE);textPaint.setAntiAlias(true);textPaint.setTextSize(dp2px(getContext(), 14));circlePaint = new Paint(Paint.ANTI_ALIAS_FLAG);circlePaint.setColor(Color.parseColor("#FF3EFFD4"));circlePaint.setStrokeWidth(dp2px(getContext(), 2));circlePaint.setStyle(Paint.Style.STROKE);circlePaint2 = new Paint(Paint.ANTI_ALIAS_FLAG);circlePaint2.setColor(Color.parseColor("#FF0061E2"));circlePaint2.setStyle(Paint.Style.FILL);baseLeftShadow = new Paint();baseLeftShadow.setAntiAlias(true);baseLeftShadow.setColor((Color.WHITE & 0x40FFFFFF) | 0x10000000);baseLeftShadow.setStyle(Paint.Style.FILL);baseShadow = new Paint();baseShadow.setAntiAlias(true);baseShadow.setColor((Color.WHITE & 0x40FFFFFF) | 0x10000000);baseShadow.setStyle(Paint.Style.FILL);buttomHeiht = dp2px(35);//线距离底部高度mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);mPaint.setColor(Color.parseColor("#FF58FFBE"));mPaint.setStrokeWidth(dp2px(getContext(), 2));mPaint.setStyle(Paint.Style.STROKE);mPaint.setStrokeCap(Paint.Cap.ROUND);
//        mPaint.setColor(Color.parseColor("#17CAAA"));topImagePaint = new Paint(Paint.ANTI_ALIAS_FLAG);}@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {super.onMeasure(widthMeasureSpec, heightMeasureSpec);sumHeight = getMeasuredHeight();sumWidth = getMeasuredWidth();}@Overrideprotected void onSizeChanged(int w, int h, int oldw, int oldh) {super.onSizeChanged(w, h, oldw, oldh);}private void measure() {maxTime = 16;//最大分数为100for (int i = 0; i < mWindSpeedList.size(); i++) {if (maxTime <= mWindSpeedList.get(i)) {maxTime = mWindSpeedList.get(i);}}
//        if (maxTime < 20) {
//            maxTime = 20;
//        }String text = "min";Rect rect = new Rect();textPaint.getTextBounds(text, 0, text.length(), rect);// 1个time几个高度oneHeight = ((sumHeight - buttomHeiht - 2 * rect.height()) / maxTime);TOP_MARGIN = rect.height();oneWidth = (sumWidth - RIGHT_MARGIN - LEFT_WIDTH) / HOR_SIZE;}int RIGHT_MARGIN = dp2px(40);int LEFT_WIDTH = dp2px(13);//距离右边宽度int TOP_MARGIN = dp2px(13);// 横向分成100份private int HOR_SIZE = 100;/*** 设置数据* WindLineData 里的所有集合数量必须是25个 从00点  到24点*/public void setWindData(WindLWaveineData windLWaveineData) {this.mWindSpeedList = windLWaveineData.getWindSpeed();this.mDateTimeList = windLWaveineData.getDateTimeList();this.topImageList = windLWaveineData.getWinImageResList();this.windEnableList = windLWaveineData.getWindSpeedIsEnableList();beforeIndicateIndex = -1;afterIndicateIndex = -1;for (int i = 0; i < this.windEnableList.size(); i++) {Boolean thisValue = this.windEnableList.get(i);// 当前为false 下一个为trueif (!thisValue && i != this.windEnableList.size() - 1 && this.windEnableList.get(i + 1)) {beforeIndicateIndex = i + 1;}// 当前为true 下一个为falseif (thisValue && i != this.windEnableList.size() - 1 && !this.windEnableList.get(i + 1)) {afterIndicateIndex = i;}}if (this.mWindSpeedList != null && this.mWindSpeedList.size() > 0 && mDateTimeList != null && mDateTimeList.size() > 0) {invalidate();}}@Overrideprotected void onDraw(Canvas canvas) {super.onDraw(canvas);if (mWindSpeedList == null || mDateTimeList == null) return;maxTime = getMaxTime(mWindSpeedList);measure();toGetXy();//获取x和y的坐标toDrawLine(canvas);drawWindImg(canvas);drawTouchLine(canvas);drawNoDataDesc(canvas);}private void toGetXy() {xyList = new ArrayList<>();for (int i = 0; i < mWindSpeedList.size(); i++) {
//            (HOR_SIZE*1.0f/timeList.size()  分成100份 每份有多长float x = oneWidth + i * (HOR_SIZE * 1.0f / (mWindSpeedList.size() - 1)) * oneWidth;float time = mWindSpeedList.get(i);//每点时间float y = (sumHeight - (oneHeight * time));xyList.add(new PointF(x + LEFT_WIDTH, y - buttomHeiht));}}// 左侧没有数据的区域画上蒙层LinearGradient mOverlyShader = new LinearGradient(0, sumHeight - maxTime * oneHeight - dp2px(4),0,sumHeight,new int[]{Color.parseColor("#00F1F9FE"), Color.parseColor("#FFC4E0F2")},new float[]{0f, 1f},Shader.TileMode.REPEAT);/*** 画线*/private void toDrawLine(Canvas canvas) {if (xyList == null || xyList.size() == 0) {return;}drawLine(canvas);List<PointF> NewPoints = new ArrayList<>();NewPoints.addAll(xyList);float lX = 0;float lY = 0;baseLinePath = new Path();baseLinePath.moveTo(NewPoints.get(0).x, NewPoints.get(0).y);for (int i = 1; i < NewPoints.size(); i++) {PointF p = NewPoints.get(i);PointF firstPointF = NewPoints.get(i - 1);float x1 = firstPointF.x + lX;float y1 = firstPointF.y + lY;PointF secondPointF = NewPoints.get(i + 1 < NewPoints.size() ? i + 1 : i);lX = (secondPointF.x - firstPointF.x) / 2 * smoothness;lY = (secondPointF.y - firstPointF.y) / 2 * smoothness;float x2 = p.x - lX;float y2 = p.y - lY;if (y1 == p.y) {y2 = y1;}baseLinePath.cubicTo(x1, y1, x2, y2, p.x, p.y);}canvas.save();
//        drawLeftShadow(canvas);drawLeftMask(canvas);canvas.drawPath(baseLinePath, mPaint);drawArea(canvas, NewPoints);canvas.restore();//绘制底部文字for (int i = 0; i < NewPoints.size(); i++) {float x = NewPoints.get(i).x;float y = NewPoints.get(i).y;Float time = mWindSpeedList.get(i);String mThumbText = String.valueOf(time);
//            Rect rect = new Rect();
//            linePaint.getTextBounds(mThumbText, 0, mThumbText.length(), rect);
//            canvas.drawText(mThumbText, x - rect.width() / 2, y - dp2px(6), linePaint);//画最上面字体
//            canvas.drawCircle(x, y, dp2px(3), circlePaint);
//            canvas.drawCircle(x, y, dp2px(2), circlePaint2);Rect rectf = new Rect();textPaint.setColor(Color.WHITE);textPaint.getTextBounds(mDateTimeList.get(i), 0, mDateTimeList.get(i).length(), rectf);// 只画 00  06 12 18 这几个标志if (i % 6 == 0 && i != NewPoints.size() - 1) {canvas.drawText(mDateTimeList.get(i), x - rectf.width() / 2, sumHeight - dp2px(18), textPaint);//画最下方的字体}}}//绘制一个单层的遮罩层private void drawLeftMask(Canvas canvas){baseLeftShadow.setColor(Color.parseColor("#9A10232F"));//绘制左侧阴影渐变色if (beforeIndicateIndex != -1 && afterIndicateIndex != -1) {canvas.drawRect(xyList.get(0).x, (sumHeight - (oneHeight * 16)) - buttomHeiht,xyList.get(beforeIndicateIndex).x,(sumHeight - (oneHeight * 0) - buttomHeiht), baseLeftShadow);canvas.drawRect(xyList.get(afterIndicateIndex).x, (sumHeight - (oneHeight * 16)) - buttomHeiht,xyList.get(xyList.size() - 1).x, (sumHeight - (oneHeight * 0) - buttomHeiht), baseLeftShadow);canvas.clipRect(xyList.get(beforeIndicateIndex).x, (sumHeight - (oneHeight * 0)) - buttomHeiht,xyList.get(afterIndicateIndex).x, (sumHeight - (oneHeight * 16)));} else if (beforeIndicateIndex != -1) {canvas.drawRect(xyList.get(0).x, (sumHeight - (oneHeight * 16)) - buttomHeiht, xyList.get(beforeIndicateIndex).x,(sumHeight - (oneHeight * 0) - buttomHeiht), baseLeftShadow);canvas.clipRect(xyList.get(beforeIndicateIndex).x, (sumHeight - (oneHeight * 0)) - buttomHeiht,sumWidth, (sumHeight - (oneHeight * 16)));} else if (afterIndicateIndex != -1) {canvas.drawRect(xyList.get(afterIndicateIndex).x, (sumHeight - (oneHeight * 16)) - buttomHeiht,xyList.get(xyList.size() - 1).x, (sumHeight - (oneHeight * 0) - buttomHeiht), baseLeftShadow);canvas.clipRect(0, (sumHeight - (oneHeight * 0)) - buttomHeiht,xyList.get(afterIndicateIndex).x, (sumHeight - (oneHeight * 16)));}}private void drawLeftShadow(Canvas canvas){//绘制左侧阴影渐变色if (beforeIndicateIndex != -1 && afterIndicateIndex != -1) {mOverlyShader = new LinearGradient(xyList.get(0).x, 0f, xyList.get(beforeIndicateIndex).x, 0f,new int[]{Color.parseColor("#00F1F9FE"), Color.parseColor("#FFC4E0F2")},new float[]{0f, 1f},Shader.TileMode.REPEAT);baseLeftShadow.setShader(mOverlyShader);canvas.drawRect(xyList.get(0).x, (sumHeight - (oneHeight * 16)) - buttomHeiht,xyList.get(beforeIndicateIndex).x,(sumHeight - (oneHeight * 0) - buttomHeiht), baseLeftShadow);mOverlyShader = new LinearGradient(xyList.get(0).x, 0f, xyList.get(beforeIndicateIndex).x, 0f,new int[]{Color.parseColor("#FFC4E0F2"), Color.parseColor("#00F1F9FE")},new float[]{0f, 1f},Shader.TileMode.REPEAT);baseLeftShadow.setShader(mOverlyShader);canvas.drawRect(xyList.get(afterIndicateIndex).x, (sumHeight - (oneHeight * 16)) - buttomHeiht,xyList.get(xyList.size() - 1).x, (sumHeight - (oneHeight * 0) - buttomHeiht), baseLeftShadow);canvas.clipRect(xyList.get(beforeIndicateIndex).x, (sumHeight - (oneHeight * 0)) - buttomHeiht,xyList.get(afterIndicateIndex).x, (sumHeight - (oneHeight * 16)));} else if (beforeIndicateIndex != -1) {mOverlyShader = new LinearGradient(xyList.get(0).x, 0f, xyList.get(beforeIndicateIndex).x, 0f,new int[]{Color.parseColor("#00F1F9FE"), Color.parseColor("#FFC4E0F2")},new float[]{0f, 1f},Shader.TileMode.REPEAT);baseLeftShadow.setShader(mOverlyShader);canvas.drawRect(xyList.get(0).x, (sumHeight - (oneHeight * 16)) - buttomHeiht, xyList.get(beforeIndicateIndex).x,(sumHeight - (oneHeight * 0) - buttomHeiht), baseLeftShadow);canvas.clipRect(xyList.get(beforeIndicateIndex).x, (sumHeight - (oneHeight * 0)) - buttomHeiht,sumWidth, (sumHeight - (oneHeight * 16)));} else if (afterIndicateIndex != -1) {mOverlyShader = new LinearGradient(xyList.get(0).x, 0f, xyList.get(beforeIndicateIndex).x, 0f,new int[]{Color.parseColor("#FFC4E0F2"), Color.parseColor("#00F1F9FE")},new float[]{0f, 1f},Shader.TileMode.REPEAT);baseLeftShadow.setShader(mOverlyShader);canvas.drawRect(xyList.get(afterIndicateIndex).x, (sumHeight - (oneHeight * 16)) - buttomHeiht,xyList.get(xyList.size() - 1).x, (sumHeight - (oneHeight * 0) - buttomHeiht), baseLeftShadow);canvas.clipRect(0, (sumHeight - (oneHeight * 0)) - buttomHeiht,xyList.get(afterIndicateIndex).x, (sumHeight - (oneHeight * 16)));}}private Path touchLinePath = new Path();/*** 画触摸线** @param canvas*/private void drawTouchLine(Canvas canvas) {if (currentTouchX == -1) {return;}canvas.drawLine(currentTouchX,(sumHeight - (oneHeight * 0)) - buttomHeiht, currentTouchX,(sumHeight - (oneHeight * 16)) - buttomHeiht,verticalDividerLinePaint2);Path tempPath = new Path();RectF rectF = new RectF();boolean isIntersect = tempPath.op(touchLinePath,baseLinePath, Path.Op.INTERSECT);tempPath.computeBounds(rectF, true);if (isIntersect) {canvas.drawCircle(rectF.left, rectF.top, dp2px(3.5f), circlePaint2);}}/*** 网格分割线* 书写右侧垂直标注动文字** @param canvas*/private void drawLine(Canvas canvas) {textPaint.setColor(Color.parseColor("#B3FFFFFF"));int dividerTextStartX = (int) sumWidth - RIGHT_MARGIN + dp2px(12);//float y16 = (sumHeight - (oneHeight * 16));int startX = 0;int stopX = 0;if (xyList.size() != 0) {startX = (int) xyList.get(0).x;stopX = (int) xyList.get(xyList.size() - 1).x;}
//        String text = "0";String text = yDataList.get(0);float y0 = (sumHeight - (oneHeight * 0));canvas.drawText(text, dividerTextStartX, sumHeight - buttomHeiht, textPaint);canvas.drawLine(startX, y0 - buttomHeiht, stopX, y0 - buttomHeiht, linePaint);//60
//        text = "2";text = yDataList.get(1);float y2 = (sumHeight - (oneHeight * 2));canvas.drawText(text, dividerTextStartX, y2 - buttomHeiht, textPaint);canvas.drawLine(startX, y2 - buttomHeiht, stopX, y2 - buttomHeiht, linePaint);//        text = "4";text = yDataList.get(2);float y4 = (sumHeight - (oneHeight * 4));canvas.drawText(text, dividerTextStartX, y4 - buttomHeiht, textPaint);canvas.drawLine(startX, y4 - buttomHeiht, stopX, y4 - buttomHeiht, linePaint);//        text = "6";text = yDataList.get(3);float y6 = (sumHeight - (oneHeight * 6));canvas.drawText(text, dividerTextStartX, y6 - buttomHeiht, textPaint);canvas.drawLine(startX, y6 - buttomHeiht, stopX, y6 - buttomHeiht, linePaint);//        text = "8";text = yDataList.get(4);float y8 = (sumHeight - (oneHeight * 8));canvas.drawText(text, dividerTextStartX, y8 - buttomHeiht, textPaint);canvas.drawLine(startX, y8 - buttomHeiht, stopX, y8 - buttomHeiht, linePaint);//        text = "10";text = yDataList.get(5);float y10 = (sumHeight - (oneHeight * 10));canvas.drawText(text, dividerTextStartX, y10 - buttomHeiht, textPaint);canvas.drawLine(startX, y10 - buttomHeiht, stopX, y10 - buttomHeiht, linePaint);//        text = "12";text = yDataList.get(6);float y12 = (sumHeight - (oneHeight * 12));canvas.drawText(text, dividerTextStartX, y12 - buttomHeiht, textPaint);canvas.drawLine(startX, y12 - buttomHeiht, stopX, y12 - buttomHeiht, linePaint);//        text = "14";text = yDataList.get(7);float y14 = (sumHeight - (oneHeight * 14));canvas.drawText(text, dividerTextStartX, y14 - buttomHeiht, textPaint);canvas.drawLine(startX, y14 - buttomHeiht, stopX, y14 - buttomHeiht, linePaint);//        text = "16";text = yDataList.get(8);canvas.drawText(text, dividerTextStartX, y16 - buttomHeiht, textPaint);canvas.drawLine(startX, y16 - buttomHeiht, stopX, y16 - buttomHeiht, linePaint);// 画竖线for (int i = 0; i < xyList.size(); i++) {//  // 补充最后一条线if (i % 6 == 0 || i == xyList.size() - 1) {  // 一共出4条竖线 一共24个数据canvas.drawLine(xyList.get(i).x, y0 - buttomHeiht, xyList.get(i).x, y16 - buttomHeiht, linePaint);}}if (currentTouchX != -1){//手指滑动过程中，该分割线不显示return;}//这里绘制左侧阴影部分与右侧非阴影部分的分割线if (beforeIndicateIndex != -1) {canvas.drawLine(xyList.get(beforeIndicateIndex).x, y0 - buttomHeiht, xyList.get(beforeIndicateIndex).x, y16 - buttomHeiht, verticalDividerLinePaint);canvas.drawCircle(xyList.get(beforeIndicateIndex).x, xyList.get(beforeIndicateIndex).y, dp2px(1.5f), circlePaint);}if (afterIndicateIndex != -1) {canvas.drawLine(xyList.get(afterIndicateIndex).x, y0 - buttomHeiht, xyList.get(afterIndicateIndex).x, y16 - buttomHeiht, verticalDividerLinePaint);canvas.drawCircle(xyList.get(afterIndicateIndex).x, xyList.get(afterIndicateIndex).y, dp2px(1.5f), circlePaint);}}/*** 阴影层叠* 右侧折线底部阴影渐变* @param canvas* @param Points*/private void drawArea(Canvas canvas, List<PointF> Points) {// sumHeight-maxTime*oneHeight-dp2px(4)  -dp4是为了调整误差无特殊用处LinearGradient mShader =new LinearGradient(0, sumHeight - maxTime * oneHeight - dp2px(4),0, sumHeight,new int[]{Color.parseColor("#FF58FFBE"),Color.parseColor("#0058FFBE")},new float[]{0f, 1f}, Shader.TileMode.REPEAT);baseShadow.setShader(mShader);if (Points.size() > 0 && xyList != null && xyList.size() > 0) {baseLinePath.lineTo(xyList.get(Points.size() - 1).x, sumHeight - buttomHeiht);baseLinePath.lineTo(xyList.get(0).x, sumHeight - buttomHeiht);baseLinePath.close();canvas.drawPath(baseLinePath, baseShadow);}}public int dp2px(float dp) {final float scale = this.getResources().getDisplayMetrics().density;return (int) (dp * scale + 0.5f);}/*** 取出时间里面的最大的一个用来计算总长度** @param timeList* @return*/public float getMaxTime(List<Float> timeList) {maxTime = 0;for (int i = 0; i < timeList.size(); i++) {if (maxTime < timeList.get(i)) {maxTime = timeList.get(i);}}if (maxTime <= 10) {maxTime = 10;}
//        maxTime *= 1.2;return maxTime;}private Map<Integer, Bitmap> bitmaps = new HashMap<>();@SuppressLint("SuspiciousIndentation")public void drawWindImg(Canvas canvas) {for (int i = 0; i < topImageList.size(); i++) {if (i % 2 != 0) {// 隔一个画一个continue;}Bitmap bmp;if (bitmaps.containsKey(topImageList.get(i))) {bmp = bitmaps.get(topImageList.get(i));} else {BitmapFactory.Options options = new BitmapFactory.Options();options.inJustDecodeBounds = true;bmp = BitmapFactory.decodeResource(getResources(), topImageList.get(i));bmp = Bitmap.createScaledBitmap(bmp, dp2px(24), dp2px(24), false);bitmaps.put(topImageList.get(i), bmp);}// 有效值才渲染风向图标if (i >= beforeIndicateIndex && (afterIndicateIndex == -1 || i <= afterIndicateIndex)) {canvas.drawBitmap(bmp, xyList.get(i).x - bmp.getWidth() / 2f, 0, topImagePaint);}}}//绘制无数据的描述，该描述会在18点后显示//当时间为18点之后且没有数据时，显示该描述private void drawNoDataDesc(Canvas canvas){if (beforeIndicateIndex < 18) {return;}float firstX =  xyList.get(0).x; //00点float secondX =  xyList.get(18).x; //18点Rect rect = new Rect();textPaint.getTextBounds(noDataDesc, 0, noDataDesc.length(), rect);float textWidth = rect.width();float startX = (secondX - firstX - textWidth) / 2 + firstX ;textPaint.setColor(Color.WHITE);textPaint.setTextSize(dp2px(getContext(), 12));if (noDataDesc != null && !noDataDesc.isEmpty()) {canvas.drawText(noDataDesc, startX, getHeight() / 2f, textPaint);}}public int dp2px(Context context, float dp) {final float scale = context.getResources().getDisplayMetrics().density;return (int) (dp * scale + 0.5f);}public float dp2px(Resources resources, float dp) {final float scale = resources.getDisplayMetrics().density;return dp * scale + 0.5f;}public float sp2px(Resources resources, float sp) {final float scale = resources.getDisplayMetrics().scaledDensity;return sp * scale;}//    private Boolean isTouching = false;private float currentTouchX = -1;private float lastTouchX = -1;@Overridepublic boolean onTouchEvent(MotionEvent event) {if (xyList == null) {return super.onTouchEvent(event);}switch (event.getAction()) {case MotionEvent.ACTION_DOWN:
//                currentTouchX=-1;
//                isTouching=true;getParent().requestDisallowInterceptTouchEvent(true);return true;case MotionEvent.ACTION_MOVE:currentTouchX = event.getX();if (beforeIndicateIndex != -1) {currentTouchX = Math.max(xyList.get(beforeIndicateIndex).x, currentTouchX);}if (afterIndicateIndex != -1) {currentTouchX = Math.min(xyList.get(afterIndicateIndex).x, currentTouchX);}if (currentTouchX <= xyList.get(0).x) {currentTouchX = xyList.get(0).x;} else if (currentTouchX >= xyList.get(xyList.size() - 1).x) {currentTouchX = xyList.get(xyList.size() - 1).x;}touchLinePath.reset();touchLinePath.moveTo(currentTouchX, (sumHeight - (oneHeight * 0)) - buttomHeiht);touchLinePath.lineTo(currentTouchX, (sumHeight - (oneHeight * 16)) - buttomHeiht);touchLinePath.lineTo(currentTouchX + 3, (sumHeight - (oneHeight * 16)) - buttomHeiht);touchLinePath.moveTo(currentTouchX + 3, (sumHeight - (oneHeight * 0)) - buttomHeiht);touchLinePath.close();// 限制更新频率if (Math.abs(lastTouchX - currentTouchX) >= 6) {lastTouchX = currentTouchX;if (onTouchPositionChange != null) {onTouchPositionChange.onChange((currentTouchX - xyList.get(0).x) / (xyList.get(xyList.size() - 1).x - xyList.get(0).x));}invalidate();}break;case MotionEvent.ACTION_CANCEL:case MotionEvent.ACTION_UP:getParent().requestDisallowInterceptTouchEvent(false);currentTouchX = -1;if (onTouchPositionChange != null) {onTouchPositionChange.onTouchUp();}invalidate();break;}
//        invalidate();return super.onTouchEvent(event);}public static class WindLWaveineData {// 风速数据是否可用private List<Boolean> windSpeedIsEnableList;//风速private List<Float> windSpeed;// 时间private List<String> dateTimeList;// 风向图标private List<Integer> winImageResList;public List<Boolean> getWindSpeedIsEnableList() {return windSpeedIsEnableList;}public List<Float> getWindSpeed() {return windSpeed;}public List<String> getDateTimeList() {return dateTimeList;}public List<Integer> getWinImageResList() {return winImageResList;}public void setWindSpeedIsEnableList(List<Boolean> windSpeedIsEnableList) {this.windSpeedIsEnableList = windSpeedIsEnableList;}public void setWindSpeed(List<Float> windSpeed) {this.windSpeed = windSpeed;}public void setDateTimeList(List<String> dateTimeList) {this.dateTimeList = dateTimeList;}public void setWinImageResList(List<Integer> winImageResList) {this.winImageResList = winImageResList;}}private OnTouchPositionChange onTouchPositionChange;public void setOnTouchPositionChange(OnTouchPositionChange onTouchPositionChange) {this.onTouchPositionChange = onTouchPositionChange;}public interface OnTouchPositionChange {// 进度从0到1 0代表0点 1 代表24点void onChange(float position);void onTouchUp();}
}

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