CircleProgressView.java 文件源码

public CircleProgressView(Context context, AttributeSet attrs) {
    super(context, attrs);

    final int strokeWidth = 8;

    paint = new Paint();
    paint.setAntiAlias(true);
    paint.setStyle(Paint.Style.STROKE);
    paint.setStrokeWidth(strokeWidth);
    paint.setStrokeCap(Paint.Cap.ROUND);
    //Circle color
    paint.setColor(Color.WHITE);

    basePaint = new Paint();
    basePaint.setAntiAlias(true);
    basePaint.setStyle(Paint.Style.STROKE);
    basePaint.setStrokeWidth(strokeWidth);
    basePaint.setStrokeCap(Paint.Cap.ROUND);
    basePaint.setColor(Color.WHITE);
    basePaint.setAlpha(122);

    //size 200x200 example
    rect = new RectF(strokeWidth, strokeWidth, 240 + strokeWidth, 240 + strokeWidth);

    //Initial Angle (optional, it can be zero)
    angle = 0;
}