在安卓中，可以使用ShapeDrawable和Path来实现特定角度的曲线圆角。

首先，创建一个自定义的Drawable类，继承自ShapeDrawable。在该类中，重写onDraw方法，使用Path来绘制特定角度的曲线圆角。

以下是一个示例代码：

public class CustomShapeDrawable extends ShapeDrawable {
    private float topLeftRadius;
    private float topRightRadius;
    private float bottomRightRadius;
    private float bottomLeftRadius;

    public CustomShapeDrawable(float topLeftRadius, float topRightRadius, float bottomRightRadius, float bottomLeftRadius) {
        this.topLeftRadius = topLeftRadius;
        this.topRightRadius = topRightRadius;
        this.bottomRightRadius = bottomRightRadius;
        this.bottomLeftRadius = bottomLeftRadius;
    }

    @Override
    protected void onDraw(Shape shape, Canvas canvas, Paint paint) {
        Path path = new Path();
        RectF rect = new RectF(getBounds());

        float[] radii = {
                topLeftRadius, topLeftRadius,
                topRightRadius, topRightRadius,
                bottomRightRadius, bottomRightRadius,
                bottomLeftRadius, bottomLeftRadius
        };

        path.addRoundRect(rect, radii, Path.Direction.CW);
        canvas.clipPath(path);

        super.onDraw(shape, canvas, paint);
    }
}

然后，在使用该Drawable的地方，可以通过创建一个实例并将其设置为View的背景来实现特定角度的曲线圆角。例如：

CustomShapeDrawable customShapeDrawable = new CustomShapeDrawable(10, 10, 0, 0);
View view = findViewById(R.id.your_view);
view.setBackground(customShapeDrawable);

在上述代码中，CustomShapeDrawable的构造函数中传入了四个角的半径值。你可以根据需要自行调整这些值来实现不同的曲线圆角效果。