AndroidのScrollViewの中のGridViewのlayout_heightが伸び縮みしないのを独自Viewで克服

ExpandableHeightGridView.java

package xx.xxx.xx.view;

import android.content.Context;
import android.util.AttributeSet;
import android.view.ViewGroup;
import android.widget.GridView;

/**
 * ScrollViewの中のGridViewでも高さを可変にする<br>
 * http://stackoverflow.com/questions/8481844/gridview-height-gets-cut
 */
public class ExpandableHeightGridView extends GridView
{

    boolean expanded = false;

    public ExpandableHeightGridView(Context context)
    {
        super(context);
    }

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

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

    public boolean isExpanded()
    {
        return expanded;
    }

    @Override
    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
    {
        // HACK! TAKE THAT ANDROID!
        if (isExpanded())
        {
            // Calculate entire height by providing a very large height hint.
            // View.MEASURED_SIZE_MASK represents the largest height possible.
            int expandSpec = MeasureSpec.makeMeasureSpec(MEASURED_SIZE_MASK,
                    MeasureSpec.AT_MOST);
            super.onMeasure(widthMeasureSpec, expandSpec);

            ViewGroup.LayoutParams params = getLayoutParams();
            params.height = getMeasuredHeight();
        }
        else
        {
            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        }
    }

    public void setExpanded(boolean expanded)
    {
        this.expanded = expanded;
    }
}

gistfile1.xml

            <ScrollView
                android:id="@+id/sc_spots"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:fillViewport="true" >


                        <xx.xxx.xx.view.ExpandableHeightGridView
                            android:id="@+id/spotsView"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_marginTop="15dp"
                            android:layout_marginBottom="15dp"
                            android:layout_marginLeft="5dp"
                            android:layout_marginRight="5dp"
                            android:horizontalSpacing="10dp"
                            android:isScrollContainer="false"
                            android:numColumns="5"
                            android:stretchMode="columnWidth"
                            android:verticalSpacing="10dp" />
            </ScrollView>

gistfile2.java

        mGridView = (ExpandableHeightGridView) getView().findViewById(R.id.spotsView);
        mGridView.setExpanded(true);
        SpotsAdapter adapter = new SpotsAdapter(getActivity(), R.layout.spot_item,params);
        mGridView.setAdapter(adapter);
        adapter.notifyDataSetChanged();

I could not detected onscroll change listener.

how to use two gridviews inside scrollview but gridview should contain header and footer

The problem is that You must set allways the LayoutParams as a parent of children is.
Example:

CardView inside LinearLayout should call setLayoutParams(new LinearLayout.LayoutParams(...))
Thats logic, right?
try to override function with instanceof, example :
if(getLayoutParams() != null) && (getLayoutParams() instanceof LinearLayoutParams) { ... }
I know this is most ugliest code, say thanx to private & final properties & methods of google team

I'm having trouble with this view on Kindle Fire. On my regular Android device, I can see the whole grid view, but on Kindle Fire, the bottom 5-10% gets clipped off, and I can't scroll further to see it all. I imagine this is a difference in screen measuring, but I don't know enough about it to figure out how to fix it. Any ideas?

I am getting null pointer exception :Attempt to invoke virtual method 'void ExpandableHeightGridView.setExpanded(boolean)' on a null object reference.
Please help.

any solution for onscroll change listener.