Question

I have created a custom view named MyDraw ,this is my MyDraw code,

public class MyDraw extends View {


    public MyDraw(Context context) {
        super(context);

    }

    public MyDraw(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);

    }

    public MyDraw(Context context, AttributeSet attrs) {
        super(context, attrs);

    }
         ........................................
}

I have added the view in XML file using package name. It is working fine. Now I want to set height and width for the MyDraw in run time,for that i have used following code,

mMyDraw.setLayoutParams(new LayoutParams(220, 300));

but i got Exception like,

java.lang.ClassCastException: android.view.ViewGroup$LayoutParams

How to solve this exception?
please help me..

Answer 1

Override the onMeasure() method, have a look here