要创建一个带有勾号的圆形形状，你可以使用自定义的Drawable来实现。以下是一个示例代码：

1. 创建一个名为"CheckCircleDrawable"的类，继承自Drawable类：

public class CheckCircleDrawable extends Drawable {
    private Paint circlePaint;
    private Paint tickPaint;
    private float strokeWidth;
    private int circleColor;
    private int tickColor;

    public CheckCircleDrawable(float strokeWidth, int circleColor, int tickColor) {
        this.strokeWidth = strokeWidth;
        this.circleColor = circleColor;
        this.tickColor = tickColor;

        circlePaint = new Paint();
        circlePaint.setAntiAlias(true);
        circlePaint.setStyle(Paint.Style.STROKE);
        circlePaint.setStrokeWidth(strokeWidth);
        circlePaint.setColor(circleColor);

        tickPaint = new Paint();
        tickPaint.setAntiAlias(true);
        tickPaint.setStyle(Paint.Style.STROKE);
        tickPaint.setStrokeWidth(strokeWidth);
        tickPaint.setColor(tickColor);
    }

    @Override
    public void draw(@NonNull Canvas canvas) {
        Rect bounds = getBounds();
        float centerX = bounds.exactCenterX();
        float centerY = bounds.exactCenterY();
        float radius = Math.min(centerX, centerY) - strokeWidth / 2;

        // 绘制圆形
        canvas.drawCircle(centerX, centerY, radius, circlePaint);

        // 绘制勾号
        Path tickPath = new Path();
        tickPath.moveTo(centerX - radius / 2, centerY);
        tickPath.lineTo(centerX - radius / 8, centerY + radius / 2);
        tickPath.lineTo(centerX + radius / 2, centerY - radius / 2);
        canvas.drawPath(tickPath, tickPaint);
    }

    @Override
    public void setAlpha(int alpha) {
        circlePaint.setAlpha(alpha);
        tickPaint.setAlpha(alpha);
    }

    @Override
    public void setColorFilter(@Nullable ColorFilter colorFilter) {
        circlePaint.setColorFilter(colorFilter);
        tickPaint.setColorFilter(colorFilter);
    }

    @Override
    public int getOpacity() {
        return PixelFormat.TRANSPARENT;
    }
}

2. 在你的Activity或Fragment中，使用CheckCircleDrawable作为View的背景：

CheckCircleDrawable checkCircleDrawable = new CheckCircleDrawable(5, Color.BLUE, Color.WHITE);

View view = findViewById(R.id.your_view_id);
view.setBackground(checkCircleDrawable);

这样，你就可以在你的View上显示一个带有勾号的圆形形状了。你可以根据需要调整画笔的宽度、填充颜色和勾号颜色。