package com.demo.navtogether;
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import android.animation.ValueAnimator;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.graphics.Path;
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import android.graphics.PathMeasure;
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import android.graphics.Point;
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import android.graphics.RectF;
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import android.util.AttributeSet;
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import android.util.DisplayMetrics;
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import android.util.Log;
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import android.util.TypedValue;
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import android.view.View;
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import android.view.animation.DecelerateInterpolator;
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import android.view.animation.LinearInterpolator;
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import com.demo.navtogether.utils.PathPlan;
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import com.demo.navtogether.utils.TriangleUtils;
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import java.text.DecimalFormat;
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import java.util.ArrayList;
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import androidx.annotation.Nullable;
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/**
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* My father is Object, ites purpose of
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*
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* @purpose Created by Runt (qingingrunt2010@qq.com) on 2020-12-23.
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*/
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public class PlanPathView extends View {
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//定义画笔
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private Paint mPaint = new Paint(),mCirclePaint = new Paint(),mTextPaint = new Paint();
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private RectF mRectF; // 绘制区域
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ArrayList<PathPlan.Place> points = new ArrayList<>();
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ArrayList<Line> lines = new ArrayList<>();
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public PlanPathView(Context context) {
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super(context);
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init();
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}
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public PlanPathView(Context context, @Nullable AttributeSet attrs) {
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super(context, attrs);
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init();
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}
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public PlanPathView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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init();
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}
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public PlanPathView(Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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init();
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}
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private void init(){
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mPaint.setColor(Color.BLUE);
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// 初始化画笔
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mPaint.setStyle(Paint.Style.FILL); // 填充
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//mProgPaint.setStrokeCap(Paint.Cap.ROUND); // 设置圆角
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mPaint.setAntiAlias(true); // 设置抗锯齿
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mPaint.setDither(true); // 设置抖动
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mPaint.setStrokeWidth(5);
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mPaint.setColor(Color.BLUE);
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// 初始化圆环画笔
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mCirclePaint.setStyle(Paint.Style.FILL); // 填充
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//mProgPaint.setStrokeCap(Paint.Cap.ROUND); // 设置圆角
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mCirclePaint.setAntiAlias(true); // 设置抗锯齿
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mCirclePaint.setDither(true); // 设置抖动
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mCirclePaint.setColor(Color.GREEN);
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mCirclePaint.setStrokeWidth(10);
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mTextPaint = new Paint();
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mTextPaint.setAntiAlias(true); // 是否抗锯齿
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//mTextPaint.setAlpha(50); // 设置alpha不透明度，范围为0~255
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mTextPaint.setColor(Color.BLACK);
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DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
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mTextPaint.setTextSize(15 * displayMetrics.scaledDensity);
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// 设置画笔属性
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mTextPaint.setStyle(Paint.Style.FILL);//画笔属性是实心圆
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// paint.setStyle(Paint.Style.STROKE);//画笔属性是空心圆
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mTextPaint.setStrokeWidth(4);//设置画笔粗细
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}
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/**
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* 重写draw方法
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* @param canvas
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*/
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@Override
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protected void onDraw(Canvas canvas) {
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super.onDraw(canvas);
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DecimalFormat df = new DecimalFormat("#.00");
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double totalLength = 0 ;
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mTextPaint.setColor(Color.RED);
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for(int i = 0 ; i < lines.size() ; i ++ ) {
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if(i == lines.size() -1 && progress>0){
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int chaX = lines.get(i).end.x- lines.get(i).start.x;
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int chaY = lines.get(i).end.y- lines.get(i).start.y;
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canvas.drawLine(lines.get(i).start.x, lines.get(i).start.y, (float) (lines.get(i).end.x-(chaX*(1-progress))), (float) (lines.get(i).end.y-(chaY*(1-progress))), mPaint);// drawRect 绘制矩形
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}else {
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canvas.drawLine(lines.get(i).start.x, lines.get(i).start.y, lines.get(i).end.x, lines.get(i).end.y, mPaint);// drawRect 绘制矩形
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}
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boolean left = lines.get(i).start.x>lines.get(i).end.x,//左偏移
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top = lines.get(i).start.y>lines.get(i).end.y;//向上偏移
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totalLength +=Double.parseDouble(df.format(lines.get(i).distance));
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int textWidth = getTextWidth(mTextPaint, df.format(lines.get(i).distance));
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int chaLeft = (lines.get(i).start.x - lines.get(i).end.x)/2 ;
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int chaTop = (lines.get(i).start.y - lines.get(i).end.y)/2 ;
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//文本位置
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float x = lines.get(i).start.x - chaLeft - textWidth/2,y = lines.get(i).start.y- chaTop;
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canvas.drawText( df.format(lines.get(i).distance),x,y, mTextPaint);
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if(i == lines.size() -1){
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String totalText = "总路线长度："+df.format(totalLength);
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textWidth = getTextWidth(mTextPaint, totalText);
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canvas.drawText( totalText,
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getWidth()/2-(textWidth/2),
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getHeight() - (mTextPaint.descent()- mTextPaint.ascent() + getResources().getDisplayMetrics().density*5), mTextPaint);
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}
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}
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mTextPaint.setColor(Color.BLACK);
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for(int i = 0 ; i < points.size() ; i ++ ) {
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PathPlan.Place place = points.get(i);
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int textWidth = getTextWidth(mTextPaint, place.name);
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if(i == points.size() -1 && progress>0 && lines.size() == 0){
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canvas.drawCircle(place.point.x, place.point.y, (float) (10*progress), mCirclePaint);
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}else{
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canvas.drawCircle(place.point.x, place.point.y, (float) (10), mCirclePaint);
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}
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canvas.drawText(place.name, place.point.x-(textWidth/2), place.point.y -(mTextPaint.descent() + getResources().getDisplayMetrics().density*5), mTextPaint);
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}
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}
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//第二个参数是一个数组.传进去个长度跟字符串长度相同的float数组,方法调用后,里边塞的是每个字符的长度.
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public int getTextWidth(Paint paint, String str) {
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int iRet = 0;
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if (str != null && str.length() > 0) {
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int len = str.length();
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float[] widths = new float[len];
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paint.getTextWidths(str, widths);
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for (int j = 0; j < len; j++) {
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iRet += (int) Math.ceil(widths[j]);
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}
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}
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return iRet;
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}
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/**
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* 重写onMeasure方法
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*
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* @param widthMeasureSpec
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* @param heightMeasureSpec
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*/
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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}
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public ArrayList<PathPlan.Place> getPoints() {
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return points;
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}
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/**
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* 设置位置
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* @param points
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*/
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public void setPoints(ArrayList<PathPlan.Place> points) {
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this.points = points;
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invalidate();
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}
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public void addPoint(PathPlan.Place point){
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points.add(point);
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invalidate();
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}
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int animTime = 500;
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double progress = 0 ;
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/**
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* 动画显示位置
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* @param places
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*/
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public void setAnimPoints(ArrayList<PathPlan.Place> places ) {
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setAnimPoints(places,null);
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}
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public void setAnimPoints(ArrayList<PathPlan.Place> places ,AnimatorListener listener){
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int time = places.size()*animTime;
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Log.i("view"," animTime:"+(time));
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ValueAnimator animator = ValueAnimator.ofInt(time);
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animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
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@Override
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public void onAnimationUpdate(ValueAnimator animation) {
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int value = (int)animation.getAnimatedValue();
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if(listener != null){
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if(value<time){
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listener.onAnimation(value);
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}else{
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listener.onFinish();
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}
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}
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int i = value / animTime;
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progress = value % animTime*1.0 /animTime;
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if(points.size()<i+1 && places.size()>i){
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points.add(places.get(i));
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}
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invalidate();
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}
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});
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animator.setInterpolator(new LinearInterpolator());
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animator.setDuration(time);//耗时
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animator.start();
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}
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interface AnimatorListener{
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void onAnimation(int value);
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void onFinish();
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}
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public void drawLine(ArrayList<Line> lines){
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this.lines = lines;
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invalidate();
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}
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public void drawAnimLine(ArrayList<Line> tempLines,AnimatorListener listener){
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// 0 － getLength()
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int time = tempLines.size()*animTime;
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ValueAnimator valueAnimator = ValueAnimator.ofInt(time);
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valueAnimator.setDuration(time);
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// 减速插值器
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valueAnimator.setInterpolator(new DecelerateInterpolator());
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valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
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@Override
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public void onAnimationUpdate(ValueAnimator animation) {
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int value = (int)animation.getAnimatedValue();
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if(listener != null){
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if(value<time){
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listener.onAnimation(value);
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}else{
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listener.onFinish();
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}
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}
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int i = value / animTime;
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progress = value % animTime*1.0 /animTime;
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Log.i("view","i:"+i+" size:"+points.size()+" animate:"+animation.getAnimatedValue()+" progress:"+progress);
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if(lines.size()<i+1 && tempLines.size()>i){
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lines.add(tempLines.get(i));
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}
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invalidate();
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}
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});
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valueAnimator.start();
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}
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public static class Line{
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public Point start,end;
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public double distance;
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public Line(Point start, Point end, double distance) {
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this.start = start;
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this.end = end;
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this.distance = distance;
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}
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}
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public void clearLines(){
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lines.clear();
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progress = 0 ;
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clearAnimation();
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invalidate();
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}
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public void clear(){
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points.clear();
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lines.clear();
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progress = 0 ;
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clearAnimation();
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invalidate();
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}
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}
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