<declare-styleable name="RectangleViewAttrs">

    <attr name="rectangle_background" format="color" />

    <attr name="circle_background" format="color" />

    <attr name="radius_dimen" format="dimension" />

</declare-styleable>

<com.anjithsasindran.RectangleView

    app:radiusDimen="5dp"

    app:rectangleBackground="@color/yellow"

    app:circleBackground="@color/green" />

public class RectangleView extends View {

​

    public RectangleView(Context context, AttributeSet attrs) {

        super(context, attrs);

​

        TypedArray attributes = context.obtainStyledAttributes(attrs, R.styleable.RectangleViewAttrs);

        mRadiusHeight = attributes.getDimensionPixelSize(R.styleable.RectangleViewAttrs_radius_dimen, getDimensionInPixel(50));

        mCircleBackgroundColor = attributes.getDimensionPixelSize(R.styleable.RectangleViewAttrs_circle_background, getDimensionInPixel(20));

        mRectangleBackgroundColor = attributes.getColor(R.styleable.RectangleViewAttrs_rectangle_background, Color.BLACK);

        attributes.recycle()

    }

}