Android使用java代码旋转形状

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.RotateAnimation;

public class ShapeView extends View {
    private Paint paint;
    private float rotation;

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

    public ShapeView(Context context, AttributeSet attrs) {
        super(context, attrs);
        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();
        int centerX = width / 2;
        int centerY = height / 2;
        int radius = Math.min(width, height) / 4;

        canvas.save();
        canvas.rotate(rotation, centerX, centerY);
        canvas.drawRect(centerX - radius, centerY - radius, centerX + radius, centerY + radius, paint);
        canvas.restore();
    }

    public void startRotationAnimation() {
        RotateAnimation animation = new RotateAnimation(0, 360, getWidth() / 2, getHeight() / 2);
        animation.setDuration(1000);
        animation.setRepeatCount(Animation.INFINITE);
        startAnimation(animation);
    }
}

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

ShapeView shapeView = findViewById(R.id.shape_view);
shapeView.startRotationAnimation();