在Android中使用Java Canvas的Squircle

public class SquircleImageView extends ImageView {
    private Paint paint;

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

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

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

    private void init() {
        paint = new Paint();
        paint.setAntiAlias(true);
        paint.setColor(Color.RED);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        Path path = new Path();
        RectF rect = new RectF(0, 0, getWidth(), getHeight());
        float radius = Math.min(getWidth(), getHeight()) / 2f;
        float cornerRadius = radius / 2f;

        path.addRoundRect(rect, cornerRadius, cornerRadius, Path.Direction.CW);
        canvas.drawPath(path, paint);

        super.onDraw(canvas);
    }
}