自定义Android六边形进度条(附源码)
本文实例讲述了Android自定义圆形进度条，分享给大家供大家参考。具体如下：
大家也可以参考这两篇文章进行学习： 《自定义Android圆形进度条(附源码)》 《Android带进度的圆形进度条》
运行效果截图如下：
主要代码：
package com.sxc.hexagonprogress;
import java.util.Random;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PaintFlagsDrawFilter;
import android.graphics.Path;
import android.graphics.RectF;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
/**
* 六边形带进度的进度条，线程安全的View，可直接在线程中更新进度
*
* @author sunxunchao
*
*/
public class HexagonProgress extends View {
/**
* 画笔对象的引用
*/
private Paint paint, mPaint;
/**
* 画笔路径
*/
private Path path, mPath;
/**
* 环的颜色
*/
private int roundColor;
/**
* 环进度的颜色
*/
private int roundProgressColor;
/**
* 中间进度百分比的字符串的颜色
*/
private int textColor;
/**
* 中间进度百分比的字符串的字体
*/
private float textSize;
/**
* 环的宽度
*/
private float roundWidth;
/**
* 最大进度
*/
private double max;
/**
* 当前进度
*/
private double progress;
/**
* 是否显示中间的进度
*/
private boolean textIsDisplayable;
/**
* 进度的风格，实心或者空心
*/
private int style;
public static final int STROKE = 0;
public static final int FILL = 1;
public HexagonProgress(Context context) {
this(context, null);
}
public HexagonProgress(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public HexagonProgress(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
paint = new Paint();
mPaint = new Paint();
TypedArray mTypedArray = context.obtainStyledAttributes(attrs,
R.styleable.HexagonProgressBar);
// 获取自定义属性和默认值
roundColor = mTypedArray.getColor(
R.styleable.HexagonProgressBar_hexagonColor, Color.RED);
roundProgressColor = mTypedArray.getColor(
R.styleable.HexagonProgressBar_hexagonProgressColor, Color.GREEN);
textColor = mTypedArray.getColor(
R.styleable.HexagonProgressBar_textColor, Color.GREEN);
textSize = mTypedArray.getDimension(
R.styleable.HexagonProgressBar_textSize, 15);
roundWidth = mTypedArray.getDimension(
R.styleable.HexagonProgressBar_hexagonWidth, 5);
max = mTypedArray.getInteger(R.styleable.HexagonProgressBar_max, 100);
textIsDisplayable = mTypedArray.getBoolean(
R.styleable.HexagonProgressBar_textIsDisplayable, true);
mTypedArray.recycle();
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
/**
* 画外六边形
*/
int centre = getWidth() / 2;// 中心坐标
int radius = (int) (centre - roundWidth / 2);// 六边形边长
mPaint.setColor(roundColor); // 设置圆环的颜色
mPaint.setStyle(Paint.Style.STROKE); // 设置空心
mPaint.setStrokeWidth(roundWidth); // 设置圆环的宽度
mPaint.setAntiAlias(true); // 消除锯齿
mPath = new Path();//设置路径
// 第一个点坐标(centre-radius, getHeight()/2)
// 第二个点坐标(centre-radius/2,getHeight()/2-Math.sqrt(3)*radius/2)
// 第三个点坐标(centre+radius/2,getHeight()/2-Math.sqrt(3)*radius/2)
// 第四个点坐标(centre+radius,getHeight()/2)
// 第五个点坐标 (centre+radius/2,Math.sqrt(3)*radius/2+getHeight()/2)
// 第六个点坐标 (centre-radius/2,Math.sqrt(3)*radius/2+getHeight()/2)
mPath.moveTo(centre - radius, centre); // A
mPath.lineTo(centre - radius / 2, (float) (centre - Math.sqrt(3)* radius / 2));// B
mPath.lineTo(centre + radius / 2, (float) (centre - Math.sqrt(3)* radius / 2));// C
mPath.lineTo(centre + radius, centre);// D
mPath.lineTo(centre + radius / 2,(float) ((Math.sqrt(3) * radius / 2) + centre));// E
mPath.lineTo(centre - radius / 2,(float) ((Math.sqrt(3) * radius / 2) + centre));// F
mPath.close();
canvas.drawPath(mPath, mPaint);
/**
* 画进度百分比
*/
mPaint.setStrokeWidth(0);
mPaint.setColor(textColor);
mPaint.setTextSize(textSize);
mPaint.setTypeface(Typeface.DEFAULT_BOLD); // 设置字体
int percent = (int) (((float) progress / (float) max) * 100); // 中间的进度百分比，先转换成float在进行除法运算，不然都为0
float textWidth = mPaint.measureText(percent + "%"); // 测量字体宽度，我们需要根据字体的宽度设置在圆环中间
if (textIsDisplayable && style == STROKE) {
canvas.drawText(percent + "%", centre - textWidth / 2, centre
+ textSize / 2, mPaint); // 画出进度百分比
}
/**
* 画六边形进度
*/
path = new Path();
paint.setStrokeWidth(roundWidth); // 设置圆环的宽度
paint.setColor(roundProgressColor); // 设置进度的颜色
paint.setAntiAlias(true);
double k= (progress*6) / max;
paint.setStyle(Paint.Style.STROKE);
if (k <= 1|| k==0) {
path.moveTo(centre + radius, centre);
path.lineTo((float)(centre+radius-k*radius/2), (float) (centre+k*radius*Math.sqrt(3)/2));
}
else if (k>1&&k<=2) {
path.moveTo(centre + radius, centre);
path.lineTo(centre + radius / 2, (float) ((Math.sqrt(3) * radius / 2) + centre));
path.lineTo((float) (centre+1.5*radius-k*radius), (float) (centre+0.5*Math.sqrt(3)*radius));
}else if (k>2&&k<=3) {
path.moveTo(centre + radius, centre);
path.lineTo(centre + radius / 2, (float) ((Math.sqrt(3) * radius / 2) + centre));
path.lineTo(centre - radius / 2, (float) ((Math.sqrt(3) * radius / 2) + centre));
path.lineTo((float)(centre+0.5*radius-0.5*radius*k), (float) (centre+1.5*Math.sqrt(3)*radius-0.5*k*radius*Math.sqrt(3)));
}else if (k>3&&k<=4) {
path.moveTo(centre + radius, centre);
path.lineTo(centre + radius / 2, (float) ((Math.sqrt(3) * radius / 2) + centre));
path.lineTo(centre - radius / 2, (float) ((Math.sqrt(3) * radius / 2) + centre));
path.lineTo(centre-radius, centre);
path.lineTo((float)(centre-radius+0.5*k*radius-1.5*radius), (float) (centre-0.5*(k-3)*radius*Math.sqrt(3)));
}else if (k>4&&k<=5) {
path.moveTo(centre + radius, centre);
path.lineTo(centre + radius / 2, (float) ((Math.sqrt(3) * radius / 2) + centre));
path.lineTo(centre - radius / 2, (float) ((Math.sqrt(3) * radius / 2) + centre));
path.lineTo(centre - radius, centre);
path.lineTo(centre - radius / 2, (float) (centre - Math.sqrt(3)* radius / 2));
path.lineTo((float) ((k-4)*radius+centre-0.5*radius),(float) (centre - Math.sqrt(3)* radius / 2));
}else if (k>5&&k<6) {
path.moveTo(centre + radius, centre);
path.lineTo(centre + radius / 2, (float) ((Math.sqrt(3) * radius / 2) + centre));
path.lineTo(centre - radius / 2, (float) ((Math.sqrt(3) * radius / 2) + centre));
path.lineTo(centre - radius, centre);
path.lineTo(centre - radius / 2, (float) (centre - Math.sqrt(3)* radius / 2));
path.lineTo(centre + radius / 2,(float) (centre - Math.sqrt(3)* radius / 2));
path.lineTo((float)(centre+0.5*radius+0.5*(k-5)*radius),(float) (centre-0.5*Math.sqrt(3)*radius+0.5*Math.sqrt(3)*(k-5)*radius));
}else {
path.moveTo(centre + radius, centre);
path.lineTo(centre + radius / 2, (float) ((Math.sqrt(3) * radius / 2) + centre));
path.lineTo(centre - radius / 2, (float) ((Math.sqrt(3) * radius / 2) + centre));
path.lineTo(centre - radius, centre);
path.lineTo(centre - radius / 2, (float) (centre - Math.sqrt(3)* radius / 2));
path.lineTo(centre + radius / 2,(float) (centre - Math.sqrt(3)* radius / 2));
path.lineTo(centre + radius , centre);
path.close();
}
canvas.drawPath(path, paint);
}
public synchronized double getMax() {
return max;
}
/**
* 设置进度的最大值
*
* @param max
*/
public synchronized void setMax(int max) {
if (max < 0) {
throw new IllegalArgumentException("max not less than 0");
}
this.max = max;
}
/**
* 获取进度.需要同步
*
* @return
*/
public synchronized double getProgress() {
return progress;
}
/**
* 设置进度，此为线程安全控件，由于考虑多线的问题，需要同步 刷新界面调用postInvalidate()能在非UI线程刷新
*
* @param progress
*/
public synchronized void setProgress(double progress) {
if (progress < 0) {
throw new IllegalArgumentException("progress not less than 0");
}
if (progress > max) {
progress = max;
}
if (progress <= max) {
this.progress = progress;
postInvalidate();
}
}
public int getCricleColor() {
return roundColor;
}
public void setCricleColor(int cricleColor) {
this.roundColor = cricleColor;
}
public int getCricleProgressColor() {
return roundProgressColor;
}
public void setCricleProgressColor(int cricleProgressColor) {
this.roundProgressColor = cricleProgressColor;
}
public int getTextColor() {
return textColor;
}
public void setTextColor(int textColor) {
this.textColor = textColor;
}
public float getTextSize() {
return textSize;
}
public void setTextSize(float textSize) {
this.textSize = textSize;
}
public float getRoundWidth() {
return roundWidth;
}
public void setRoundWidth(float roundWidth) {
this.roundWidth = roundWidth;
}
}
在values中新建一个attrs.xml文件：
<?xml version="1.0" encoding="UTF-8"?>
<resources>
<declare-styleable name="HexagonProgressBar">
<attr name="hexagonColor" format="color"/>
<attr name="hexagonProgressColor" format="color"/>
<attr name="hexagonWidth" format="dimension"></attr>
<attr name="textColor" format="color" />
<attr name="textSize" format="dimension" />
<attr name="max" format="integer"></attr>
<attr name="textIsDisplayable" format="boolean"></attr>
<!-- <attr name="style">
<enum name="STROKE" value="0"></enum>
<enum name="FILL" value="1"></enum>
</attr> -->
</declare-styleable>
</resources>
项目免费下载： 《Android六边形进度条》
希望本文所述对大家学习Android软件编程有所帮助。
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