Android自定义多节点进度条显示的实现代码(附源码)

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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 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();
 float nodeWidth = ((float)mWidth)/(nodesNum-1);
 for(int i=0;i