sizing issue of gridview in nested scrollview - nestedscrollview

Question

you can see gridview in the image which is not wrapping whole nestedscrollview Guys please help me I am stucked in this code, I need a collapsing toolbar layout and I succeed too but the gridview inside the nested scrollview is not wrapping total space of nestedscrollview, I tried many ways but failed.
This is the xml which is helping me to collapse toolbar and where I am getting gridview issues,
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/coordinatorLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.patelsanket.myalbum.activities.AlbumImageDisplayActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar"
android:layout_width="match_parent"
android:layout_height="#dimen/app_bar_height"
android:fitsSystemWindows="true"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/toolbar_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="#+id/headerImage1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:contentDescription="#string/shows_header_image"
android:fitsSystemWindows="true"
android:scaleType="fitXY"
android:src="#drawable/cod" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<GridView
android:id="#+id/album_image_grid_view"
android:layout_width="match_parent"
android:layout_height="550dip"
android:choiceMode="multipleChoice"
android:horizontalSpacing="0.5dp"
android:numColumns="2"
android:paddingBottom="20dip" />
</RelativeLayout>
</android.support.v4.widget.NestedScrollView>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="#dimen/fab_margin"
android:src="#drawable/ic_add"
app:backgroundTint="#009688"
app:layout_anchor="#id/app_bar"
app:layout_anchorGravity="bottom|end|right" />
</android.support.design.widget.CoordinatorLayout>

Answer 1

Use RecyclerView with GridLayoutManager. As Recycler view is compitable with Collasping bartoolbar too...
I hope it helps..

Answer 2

After searching a lot I found that using expandable gridview it can be solved. I used the following class and it is working fine.
This is a custom implementation of the native GridView ,
Here we override the functionality pertaining to GridView's height.
This implementation does away with a fixed Height GridView , rather
the height of the GridView expands depending upon the number of child elements added into it.
public class ExpandableGridView extends GridView{
boolean expanded = false;
public boolean isExpanded()
{
return expanded;
}
public ExpandableGridView(Context context)
{
super(context);
}
public ExpandableGridView(Context context, AttributeSet attrs)
{
super(context, attrs);
}
public ExpandableGridView(Context context, AttributeSet attrs,
int defStyle)
{
super(context, attrs, defStyle);
}
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
if (isExpanded())
{
// Calculate entire height by providing a very large height hint.
// But do not use the highest 2 bits of this integer; those are
// reserved for the MeasureSpec mode.
int expandSpec = MeasureSpec.makeMeasureSpec(
Integer.MAX_VALUE >> 2, 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;
}
}

Answer 3

add this code
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
album_image_grid_view.setNestedScrollingEnabled(true);
}
or you can use RecyclerView instead of GridView