Android自定义多节点进度条显示的实现代码(附源码)

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/rl_parent" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:background="#ffffff" tools:context=".MainActivity" xmlns:app="http://schemas.android.com/apk/res/com.demo.demomutiprogress"> <com.demo.demomutiprogress.MutiProgress android:id="@+id/mp_1" android:layout_width="match_parent" android:layout_height="100dp" app:nodesNum="4" app:currNodeState="1" app:currNodeNO="2" app:nodeRadius="10dp" app:processingLineColor="#7B68EE" app:unprogressingDrawable="@drawable/ic_round_ddd" app:progressingDrawable="@drawable/ic_completed" app:progresFailDrawable="@drawable/ic_error" app:progresSuccDrawable="@drawable/ic_checked"/> <com.demo.demomutiprogress.MutiProgress android:id="@+id/mp_2" android:layout_below="@+id/mp_1" android:layout_marginTop="20dp" android:layout_width="match_parent" android:layout_height="30dp" app:nodesNum="10" app:currNodeState="1" app:currNodeNO="6" app:nodeRadius="6dp" app:processingLineColor="#7B68EE" app:progressingDrawable="@drawable/ic_completed" app:unprogressingDrawable="@drawable/ic_round_ddd" app:progresFailDrawable="@drawable/ic_error" app:progresSuccDrawable="@drawable/ic_checked"/> <com.demo.demomutiprogress.MutiProgress android:id="@+id/mp_3" android:layout_below="@+id/mp_2" android:layout_marginTop="20dp" android:layout_width="match_parent" android:layout_height="50dp" app:nodesNum="15" app:currNodeState="0" app:currNodeNO="10" app:nodeRadius="4dp" app:processingLineColor="#FF00FF" app:progressingDrawable="@drawable/ic_completed" app:unprogressingDrawable="@drawable/ic_round_ddd" app:progresFailDrawable="@drawable/ic_error" app:progresSuccDrawable="@drawable/ic_checked"/></RelativeLayout>

<?xml version="1.0" encoding="utf-8"?><resources> <declare-styleable name="MutiProgress">  <attr name="nodesNum" format="integer"/> <!-- 节点数量 -->  <attr name="nodeRadius" format="dimension"/>  <attr name="progressingDrawable" format="reference"></attr>  <attr name="unprogressingDrawable" format="reference" /> <!-- 未完成的节点图标 --> <attr name="progresFailDrawable" format="reference" />  <attr name="progresSuccDrawable" format="reference" />  <attr name="processingLineColor" format="color"></attr> <attr name="currNodeNO" format="integer"></attr> <!-- 当前所到达的节点编号 0开始计算-->  <attr name="currNodeState" format="integer"></attr> <!-- 当前所到达的节点状态，0：失败 1：成功 -->  </declare-styleable> </resources>

package com.demo.demomutiprogress;import java.util.ArrayList;import android.content.Context;import android.content.res.TypedArray;import android.graphics.Bitmap;import android.graphics.Bitmap.Config;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.Point;import android.graphics.Rect;import android.graphics.drawable.Drawable;import android.util.AttributeSet;import android.util.Log;import android.view.View;/** * 多节点进度条自定义视图 * @author huqiang * */public class MutiProgress extends View{ private int nodesNum ; //节点数量 private Drawable progressingDrawable; //进行中的图标 private Drawable unprogressingDrawable; private Drawable progresFailDrawable; //失败的节点 private Drawable progresSuccDrawable; //成功的节点 private int nodeRadius; //节点的半径 private int processingLineColor; //进度条的颜色// private int progressLineHeight; //进度条的高度 private int currNodeNO; //当前进行到的节点编号。从0开始计算 private int currNodeState; //当前进行到的节点编号所对应的状态 0：失败 1：成功// private int textSize; //字体大小 Context mContext; int mWidth,mHeight; private Paint mPaint; private Canvas mCanvas; private Bitmap mBitmap; //mCanvas绘制在这上面 private ArrayList<Node> nodes; private int DEFAULT_LINE_COLOR = Color.BLUE; public MutiProgress(Context context) { this(context,null); } public MutiProgress(Context context, AttributeSet attrs) { this(context,attrs,0); } public MutiProgress(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); mContext = context; TypedArray mTypedArray = context.obtainStyledAttributes(attrs,R.styleable.MutiProgress); nodesNum = mTypedArray.getInteger(R.styleable.MutiProgress_nodesNum, 1); //默认一个节点 nodeRadius = mTypedArray.getDimensionPixelSize(R.styleable.MutiProgress_nodeRadius, 10); //节点半径 progressingDrawable = mTypedArray.getDrawable(R.styleable.MutiProgress_progressingDrawable); unprogressingDrawable = mTypedArray.getDrawable(R.styleable.MutiProgress_unprogressingDrawable); progresFailDrawable = mTypedArray.getDrawable(R.styleable.MutiProgress_progresFailDrawable); progresSuccDrawable = mTypedArray.getDrawable(R.styleable.MutiProgress_progresSuccDrawable); processingLineColor = mTypedArray.getColor(R.styleable.MutiProgress_processingLineColor, DEFAULT_LINE_COLOR); currNodeState = mTypedArray.getInt(R.styleable.MutiProgress_currNodeState, 1); currNodeNO = mTypedArray.getInt(R.styleable.MutiProgress_currNodeNO, 1); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); mWidth = getMeasuredWidth(); mHeight = getMeasuredHeight(); mBitmap = Bitmap.createBitmap(mWidth, mHeight, Config.ARGB_8888); mPaint = new Paint(); mPaint.setColor(processingLineColor); mPaint.setAntiAlias(true); mPaint.setStrokeJoin(Paint.Join.ROUND); // 圆角  mPaint.setStrokeCap(Paint.Cap.ROUND); // 圆角 mCanvas = new Canvas(mBitmap); nodes = new ArrayList<MutiProgress.Node>(); float nodeWidth = ((float)mWidth)/(nodesNum-1); for(int i=0;i<nodesNum;i++) {  Node node = new Node();  if(i==0)  node.mPoint = new Point(((int)nodeWidth*i),mHeight/2-nodeRadius);  else if(i==(nodesNum-1))  node.mPoint = new Point(((int)nodeWidth*i)-nodeRadius*2,mHeight/2-nodeRadius);  else  node.mPoint = new Point(((int)nodeWidth*i)-nodeRadius,mHeight/2-nodeRadius);  if(currNodeNO == i)  node.type = 1; //当前进度所到达的节点  else  node.type = 0; //已完成  nodes.add(node); } } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); DrawProgerss(); Log.v("ondraw", "mBitmap="+mBitmap); if(mBitmap!=null) {  canvas.drawBitmap(mBitmap, new Rect(0,0,mBitmap.getWidth(),mBitmap.getHeight()), new Rect(0,0,mBitmap.getWidth(),mBitmap.getHeight()), mPaint); } for(int i=0;i<nodes.size();i++) {  Node node = nodes.get(i);  Log.v("ondraw", node.mPoint.x +";y="+node.mPoint.y);  if(i<currNodeNO) //已完成的进度节点  {  progressingDrawable.setBounds(node.mPoint.x, node.mPoint.y , node.mPoint.x + nodeRadius*2,node.mPoint.y + nodeRadius*2);  progressingDrawable.draw(canvas);  }  else if(i==currNodeNO) //当前所到达的进度节点（终点）  {  if(currNodeState == 1) //判断是成功还是失败 0 :失败 1：成功  {   progresSuccDrawable.setBounds(node.mPoint.x, node.mPoint.y , node.mPoint.x + nodeRadius*2,node.mPoint.y + nodeRadius*2);   progresSuccDrawable.draw(canvas);  }  else  {   progresFailDrawable.setBounds(node.mPoint.x, node.mPoint.y , node.mPoint.x + nodeRadius*2,node.mPoint.y + nodeRadius*2);   progresFailDrawable.draw(canvas);  }  }  else //未完成的进度节点  {  unprogressingDrawable.setBounds(node.mPoint.x, node.mPoint.y , node.mPoint.x + nodeRadius*2,node.mPoint.y + nodeRadius*2);  unprogressingDrawable.draw(canvas);  } } } private void DrawProgerss() { //先画背景 Paint bgPaint = new Paint(); bgPaint.setColor(Color.parseColor("#f0f0f0")); mCanvas.drawRect(0, 0, mWidth, mHeight, bgPaint); //先画线段，线段的高度为nodeRadius/2 mPaint.setStrokeWidth(nodeRadius/2); //前半截线段// mCanvas.drawLine(nodeRadius, mHeight/2, mWidth-nodeRadius, mHeight/2, mPaint); //线段2端去掉nodeRadius mCanvas.drawLine(nodeRadius, mHeight/2, nodes.get(currNodeNO).mPoint.x + nodeRadius, nodes.get(currNodeNO).mPoint.y + nodeRadius, mPaint); //线段2端去掉nodeRadius //后半截线段 mPaint.setColor(Color.parseColor("#dddddd")); mCanvas.drawLine(nodes.get(currNodeNO).mPoint.x +nodeRadius, nodes.get(currNodeNO).mPoint.y + nodeRadius, mWidth-nodeRadius, mHeight/2, mPaint); //线段2端去掉nodeRadius } class Node { Point mPoint; int type; //0:已完成 1:当前到达的进度节点 }}