Android如何在六边形内部绘制三角形？

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.util.AttributeSet;
import android.view.View;

public class TriangleView extends View {
    private Paint paint;

    public TriangleView(Context context) {
        super(context);
        init();
    }

    public TriangleView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public TriangleView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init();
    }

    private void init() {
        paint = new Paint();
        paint.setColor(Color.RED);
        paint.setStyle(Paint.Style.FILL);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);

        int width = getWidth();
        int height = getHeight();

        // 计算六边形的顶点坐标
        float centerX = width / 2f;
        float centerY = height / 2f;
        float radius = Math.min(width, height) / 2f;
        float angle = (float) (Math.PI * 2 / 6); // 六边形的内角为 120 度
        float[] hexagonX = new float[6];
        float[] hexagonY = new float[6];
        for (int i = 0; i < 6; i++) {
            hexagonX[i] = (float) (centerX + radius * Math.cos(angle * i));
            hexagonY[i] = (float) (centerY + radius * Math.sin(angle * i));
        }

        // 绘制六边形
        Path hexagonPath = new Path();
        hexagonPath.moveTo(hexagonX[0], hexagonY[0]);
        for (int i = 1; i < 6; i++) {
            hexagonPath.lineTo(hexagonX[i], hexagonY[i]);
        }
        hexagonPath.close();
        canvas.drawPath(hexagonPath, paint);

        // 绘制三角形
        Path trianglePath = new Path();
        float triangleSize = radius / 2f; // 三角形的边长为六边形半径的一半
        float triangleHeight = (float) (triangleSize * Math.sqrt(3) / 2); // 三角形的高度
        float triangleX = centerX;
        float triangleY = centerY - triangleHeight / 2; // 三角形的顶点位置
        trianglePath.moveTo(triangleX, triangleY);
        trianglePath.lineTo(triangleX - triangleSize / 2, triangleY + triangleHeight);
        trianglePath.lineTo(triangleX + triangleSize / 2, triangleY + triangleHeight);
        trianglePath.close();
        canvas.drawPath(trianglePath, paint);
    }
}

<com.example.TriangleView
    android:layout_width="200dp"
    android:layout_height="200dp" />