圆形进度条
支持设置：
1、圆环背景颜色
2、圆管背景宽度
3、进度圆环颜色
4、进度圆环宽度
5、圆环进度
6、开始角度
7、动画执行时间
自定义类：
代码语言：javascript复制package com.example.mainactivty;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.Transformation;
import androidx.annotation.Nullable;
public class ProgressBarView extends View {
private Paint mPaint; // 画笔
private CircleBarAnim anim; // 动画
private float progressSweepAngle;//进度条圆弧扫过的角度
// 以下是自定义参数
private int mAnnulusWidth; // 圆环宽度
private int mProgressWidth; // 进度条宽度
private int mAnnulusColor; // 圆环颜色
private int mLoadColor; // 加载进度圆弧扫过的颜色
private int mProgress = 0; // 当前进度
private int maxProgress = 100; // 最大进度，默认100
public int startAngle = -90; // 开始圆点角度
public ProgressBarView(Context context) {
this(context, null);
}
public ProgressBarView(Context context, @Nullable AttributeSet attrs) {
this(context, attrs, 0);
}
public ProgressBarView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
// 获取自定义属性
TypedArray value = context.getTheme().obtainStyledAttributes(attrs, R.styleable.AnnulusCustomizeView, defStyleAttr, 0);
int indexCount = value.getIndexCount();
for (int i = 0; i < indexCount; i ) {
int parm = value.getIndex(i);
switch (parm) {
case R.styleable.AnnulusCustomizeView_startAngle:
startAngle = value.getInt(parm, 90);
break;
case R.styleable.AnnulusCustomizeView_annulusWidth:
mAnnulusWidth = value.getDimensionPixelSize(parm,
(int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
10,
getResources().getDisplayMetrics()));
break;
case R.styleable.AnnulusCustomizeView_progressWidth:
mProgressWidth = value.getDimensionPixelSize(parm,
(int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
10,
getResources().getDisplayMetrics()));
break;
case R.styleable.AnnulusCustomizeView_annulusColor:
mAnnulusColor = value.getColor(parm, Color.BLACK);
break;
case R.styleable.AnnulusCustomizeView_loadColor:
mLoadColor = value.getColor(parm, Color.BLACK);
break;
case R.styleable.AnnulusCustomizeView_progress:
mProgress = value.getInt(parm, 10);
break;
}
}
value.recycle();
// 动画
anim=new CircleBarAnim();
mPaint = new Paint();
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
// TODO:绘制圆环
// 获取圆形坐标
int centre = getWidth() / 2;
// 获取半径
int radius = centre - mAnnulusWidth / 2-10;
// 取消锯齿
mPaint.setAntiAlias(true);
// 设置画笔宽度
mPaint.setStrokeWidth(mAnnulusWidth);
// 设置空心
mPaint.setStyle(Paint.Style.STROKE);
// 设置画笔颜色
mPaint.setColor(mAnnulusColor);
canvas.drawCircle(centre, centre, radius, mPaint);
// TODO:画圆弧，进度
// 获取进度条中心点
// 进度条半径
int progressRadius = centre - mAnnulusWidth /2-10;
// 设置进度颜色
mPaint.setColor(mLoadColor);
mPaint.setStrokeWidth(mProgressWidth);
mPaint.setStyle(Paint.Style.STROKE);
// 用于定义的圆弧的形状和大小的界限
RectF ovalStroke = new RectF(centre - progressRadius, centre - progressRadius,
centre progressRadius, centre progressRadius);
canvas.drawArc(ovalStroke, startAngle, progressSweepAngle, false, mPaint);
}
/**
* 设置进度
* @param progress 进度值
* @param time 动画时间范围
*/
public synchronized void setProgress(final int progress,int time) {
anim.setDuration(time);
this.startAnimation(anim);
this.mProgress = progress;
}
// 动画
public class CircleBarAnim extends Animation {
public CircleBarAnim() {
}
@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
super.applyTransformation(interpolatedTime, t);
progressSweepAngle=interpolatedTime*(mProgress * 360 / maxProgress);//这里计算进度条的比例
postInvalidate();
}
}
public synchronized int getmProgress() {
return mProgress;
}
}属性值：
放在main->res->values->attr.xml文件
代码语言：javascript复制<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:tools="http://schemas.android.com/tools">
<attr name="annulusColor" format="color"/>//圆环颜色
<attr name="loadColor" format="color"/>//环形进度条加载颜色
<attr name="annulusWidth" format="dimension"/>//圆环宽度
<attr name="progressWidth" format="dimension"/>//圆环宽度
<attr name="startAngle" format="integer"/>//开始角度
<attr name="progress" format="integer"/>//圆环进度
<declare-styleable name="AnnulusCustomizeView">
<attr name="annulusColor"/>
<attr name="loadColor"/>
<attr name="annulusWidth"/>
<attr name="progressWidth"/>
<attr name="startAngle"/>
<attr name="progress"/>
</declare-styleable>
</resources>xml使用:
代码语言：javascript复制 <com.example.mainactivty.ProgressBarView
android:id="@ id/progressBar"
android:layout_width="50dp"
android:layout_height="50dp"
android:padding="20dp"
app:annulusColor="#F1EEE7"
android:paddingVertical="6dp"
android:paddingHorizontal="6dp"
app:annulusWidth="4dp"
app:loadColor="#BE9B79"
app:progress="0"
app:progressWidth="6dp"
app:startAngle="-90"
>
</com.example.mainactivty.ProgressBarView>progressBarView.setProgress(70,2000);源码参考:
https://gitee.com/xqxacm/circleProgress
