自定义圆环进度条-百分比进度

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1.style文件

<attr name="originColor" format="color"/>
<attr name="setColor" format="color"/>
<attr name="textViewColor" format="color"/>
<attr name="TextViewSize" format="dimension"/>
<attr name="circleWidth" format="dimension"/>
<declare-styleable name="CircleProgress">
    <attr name="originColor"/>
    <attr name="setColor"/>
    <attr name="textViewColor"/>
    <attr name="TextViewSize"/>
    <attr name="circleWidth"/>
</declare-styleable>

2.自定义circleProgress

public class CircleProgress extends View {

    private Paint mPaint;
    private int mRadius; // 圆环半径
    private TextPaint mTextPaint;
    private int strokeWidth = 20; //圆环圈的宽度
    private int mProgress;
    private int mPercent;
    private int mOriginColor;
    private int mSetColor;
    private int mTextViewColor;
    private int mTextViewSize;
    private int mCount = 0;

    public CircleProgress(Context context) {
        this(context, null);
    }

    public CircleProgress(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public CircleProgress(Context context, final AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        TypedArray a = context.getTheme().obtainStyledAttributes(attrs, R.styleable.CircleProgress, defStyleAttr, 0);
        int indexCount = a.getIndexCount();
        for (int i = 0; i < indexCount; i++) {
            int attr = a.getIndex(i);
            switch (attr) {
                case R.styleable.CircleProgress_circleWidth:
                    strokeWidth = (int) a.getDimension(attr, TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 20, getResources().getDisplayMetrics()));
                    break;
                case R.styleable.CircleProgress_originColor:
                    mOriginColor = a.getColor(attr, Color.GRAY);
                    break;
                case R.styleable.CircleProgress_setColor:
                    mSetColor = a.getColor(attr, Color.RED);
                    break;
                case R.styleable.CircleProgress_textViewColor:
                    mTextViewColor = a.getColor(attr, Color.BLACK);
                    break;
                case R.styleable.CircleProgress_TextViewSize:
                    mTextViewSize = (int) a.getDimension(attr, TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 16, getResources().getDisplayMetrics()));
                    break;
            }
        }
        a.recycle();
        init();
        start();
    }

    private void start() {
        new Thread(new Runnable() {
            @Override
            public void run() {
                while (mCount != 361) {
                    startDraw(mCount);
                    mCount++;
                    try {
                        Thread.sleep(20);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }).start();
    }

    private void init() {
        //画数字
        mTextPaint = new TextPaint();
        mTextPaint.setColor(mTextViewColor);
        mTextPaint.setTextSize(mTextViewSize);
        mTextPaint.setAntiAlias(true);
        //画图
        mPaint = new Paint();
        mPaint.setAntiAlias(true);
        mPaint.setStyle(Paint.Style.STROKE);
        mPaint.setStrokeWidth(strokeWidth);
    }

    public void startDraw(int progress) {
        mProgress = progress;
        mPercent = (int) (mProgress / 3.6);
        postInvalidate();
    }

    @Override
    protected void onDraw(Canvas canvas) {
        int width = getWidth() / 2;
        mRadius = width - strokeWidth / 2;
        RectF rectF = new RectF(width - mRadius, width - mRadius, width + mRadius, width + mRadius);
        mPaint.setColor(mOriginColor);
        canvas.drawCircle(width, width, mRadius, mPaint);
        mPaint.setColor(mSetColor);
        canvas.drawText(mPercent + "%", width - strokeWidth * 2, width + strokeWidth, mTextPaint);
        canvas.drawArc(rectF, -90, mProgress, false, mPaint);

    }

}