这期内容当中小编将会给大家带来有关在Android开发中通过自定义View实现一个圆形进度条，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。

站在用户的角度思考问题，与客户深入沟通，找到栖霞网站设计与栖霞网站推广的解决方案，凭借多年的经验，让设计与互联网技术结合，创造个性化、用户体验好的作品，建站类型包括：做网站、成都网站设计、企业官网、英文网站、手机端网站、网站推广、域名申请、网站空间、企业邮箱。业务覆盖栖霞地区。

首先来看看自己定义的View

package cn.easymobi.application.bell.common;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.view.View;
public class ProgressView extends View{
  private float fArcNum;
  private float fMax;
  private float density;
  public float getDensity() {
    return density;
  }
  public void setDensity(float density) {
    this.density = density;
  }
  public ProgressView(Context context) {
    super(context);
  }
  public ProgressView(Context context,AttributeSet attrs) {
    super(context,attrs);
  }
  protected void onDraw(Canvas canvas) {
    // TODO Auto-generated method stub
    super.onDraw(canvas);
    Paint paint=new Paint();
    if(fArcNum>0)
      {
      paint.setColor(Color.GRAY);
      paint.setFlags(Paint.ANTI_ALIAS_FLAG);
      canvas.drawCircle(40*density/2, 40*density/2, 40*density/2, paint);
    }
    paint.setColor(Color.YELLOW);
    paint.setFlags(Paint.ANTI_ALIAS_FLAG);
    //paint.setStrokeWidth(2);
    RectF rect=new RectF(0, 0, 40*density, 40*density);
    canvas.drawArc(rect, -90, fArcNum,true, paint);
    paint.setColor(Color.BLACK);
    paint.setFlags(Paint.ANTI_ALIAS_FLAG);
    canvas.drawCircle(40*density/2, 40*density/2, 40*density/2-5, paint);
  }
  public void setProgress(float num) {
    fArcNum = (num/fMax) * 360;
  }
  public float getfArcNum() {
    return fArcNum;
  }
  public void setfArcNum(float fArcNum) {
    this.fArcNum = fArcNum;
  }
  public float getfMax() {
    return fMax;
  }
  public void setfMax(float fMax) {
    this.fMax = fMax;
  }
}

标题名称：在Android开发中通过自定义View实现一个圆形进度条-创新互联
网页网址：http://scyanting.com/article/dppeip.html