Android Linear Layout with four Listview is not scrolling inside Scrollview

Question

I am using LinearLayout with vertical orientation and inside that layout I am having four ListView . This layout I have placed inside ScrollView .

My problem is ScrollView is not scrolling. So I am not able to see my all list views.

What i am doing is:

<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/ScrollView1"
android:layout_width="wrap_content"
android:layout_height="600dp"
android:fillViewport="true" >




             <LinearLayout
                 android:id="@+id/frag_capt2"
                 android:layout_width="800dp"
                 android:layout_height="match_parent"
                 android:layout_marginLeft="100dp"
                 android:layout_marginTop="20dp"
                 android:orientation="vertical" >

                 <TextView
                     android:id="@+id/linearlayoutteamtv1"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:text="Medium Text"
                     android:textAppearance="?android:attr/textAppearanceMedium"
                     android:textColor="#000000" />


                 <ListView
                     android:id="@+id/ListView01team"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginTop="10dp"
                     android:background="@drawable/pm_cool_listproject_background" >

                 </ListView>



                 <TextView
                     android:id="@+id/linearlayoutteamtv2"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_marginTop="10dp"
                     android:text="Medium Text"
                     android:textAppearance="?android:attr/textAppearanceMedium"
                     android:textColor="#000000" />



                 <ListView
                     android:id="@+id/ListView02team"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginTop="10dp"
                     android:background="@drawable/pm_cool_listproject_background" >

                 </ListView>

                  <TextView
                     android:id="@+id/linearlayoutteamtv3"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_marginTop="10dp"
                     android:text="Medium Text"
                     android:textAppearance="?android:attr/textAppearanceMedium"
                     android:textColor="#000000" />



                 <ListView
                     android:id="@+id/ListView03team"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginTop="10dp"
                     android:background="@drawable/pm_cool_listproject_background" >

                 </ListView>



                  <TextView
                     android:id="@+id/linearlayoutteamtv4"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_marginTop="10dp"
                     android:text="Medium Text"
                     android:textAppearance="?android:attr/textAppearanceMedium"
                     android:textColor="#000000" />



                 <ListView
                     android:id="@+id/ListView04team"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginTop="10dp"
                     android:background="@drawable/pm_cool_listproject_background" >

                 </ListView>


             </LinearLayout>
</ScrollView>

I do not understand what my code is missing.

Answer 1

A listview should NOT be inside any scrolling element or vice versa. please have a look at what google developers have to say about it.Please check this Video

Answer 2

you can set all four listview height..like...

 <ListView
            android:id="@+id/lst_tree_hazard"
            android:layout_width="fill_parent"
            android:layout_height="80dp"       ///set the height based on your listview content
            android:scrollbars="none" >
 </ListView>

Answer 3

You dont need to have a ScrollView for a ListView . I think you can easily use RelativeLayout and specify the order of the ListViews

Answer 4

Generally, you cannot put scrollable things inside other scrollable things, where they scroll in the same direction, and have the results be reliable. Occasionally this works (eg, WebViews in a ViewPager ), but that is the exception, not the norm.

Either:

Move the ListView out of the ScrollView , or

Move all the rest of the contents of the ScrollView into the ListView, whether using things like addHeaderView() or my MergeAdapter

Answer 5

You just can't do that that way! However, there is solution to you problem, multiple types of list items within single list . Differences between single type list items:

• define list item types, ie. (header, list1_type, list2_type,... main_header?, main_footer?) , override getViewTypeCount()
• override getItemViewType(...) ,
  • is index_of_header -> 0
  • is index_of_type1 -> 1
  • is index_of_type2 -> 2
• more complex getView(...)
  • get item view type, hint: use already made function
  • dispatch view creation based on type, don't forget, that convertView argument is view for current item type, you should reuse it , if not null!

You may create your own abstract class for merging adapter, as mentioned in another answer. It's just basically what I explained above. Sometimes you just can't use merge adapter, ie. recursive structures, but there is good idea to consider using ExpandableListView .