Develop Reference

How to create a scrollable template using fragments in Android

I am trying to achieve something like following
I am trying to build an activity joining 3 fragments. Top fragment contains a search bar (EditText), middle fragment has a Banner Slider (ViewPager), and the bottom fragment contains a GridView loaded with n number of items dynamically. I want to make the middle & bottom fragments scrollable vertically while the top one being fixed. But the Grid view is scrolling within itself while the height is set to wrap_content.
If the GridView is given a fixed height, it is working as expected. But I cannot give it a fixed height as its content is dynamically loaded.
Home Activity:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:background="#color/colorLightGray"
tools:context=".HomeActivity">
<ScrollView
android:id="#+id/scrollableContents"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
android:padding="5dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<FrameLayout
android:id="#+id/fragmentContainerSearchBar"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</FrameLayout>
<FrameLayout
android:id="#+id/fragmentContainerSlider"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</FrameLayout>
<FrameLayout
android:id="#+id/fragmentContainerPopularItems"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</FrameLayout>
</LinearLayout>
</ScrollView>
</RelativeLayout>
SearchBarFragment:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context=".fragments.HomeSearchBarFragment">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingHorizontal="2dp"
android:paddingVertical="2dp"
android:focusable="true"
android:focusableInTouchMode="true">
<EditText
android:id="#+id/etSearchBoxHome"
android:inputType="text"
android:layout_width="match_parent"
android:layout_height="40dp"
android:drawableRight="#drawable/ic_search_24dp"
android:drawablePadding="5dp"
android:background="#drawable/et_search_home"
android:paddingLeft="15dp"
android:paddingRight="15dp"
android:layout_marginTop="0dp"
android:clickable="true"
android:cursorVisible="true"
android:focusable="true"
android:textSize="14dp"
android:hint="#string/home_searchbox_hint"/>
</RelativeLayout>
</FrameLayout>
Banner Slider Fragment:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_margin="2dp"
tools:context=".fragments.HomePromoSliderFragment">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="2dp"
card_view:cardBackgroundColor="#color/colorWhite"
card_view:cardCornerRadius="3dp">
<android.support.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
</android.support.v7.widget.CardView>
</RelativeLayout>
Popular Items Fragment:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context=".fragments.HomePopularItemsFragment">
<GridView
android:id="#+id/gvPopularItems"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:columnWidth="150dp"
android:gravity="center"
android:numColumns="auto_fit"
android:stretchMode="columnWidth">
</GridView>
</RelativeLayout>

You can take nestedScrollView outside of ViewPager and Gridview.
Set the recycler View to setNestedScrollingEnable(false).
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
<GridView
android:layout_width="match_parent"
android:layout_height="match_parent">
</GridView>
</android.support.v4.widget.NestedScrollView>

Try using `Constraint Layout` for whole layout, `autocomplete text view` for search bar, `viewpager` for banners, recycler view for showing the loaded items.
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<AutoCompleteTextView
android:id="#+id/search"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"/>
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent">
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent">
</android.support.v7.widget.RecyclerView>
</android.support.constraint.ConstraintLayout>
** Set the margins as per the UI
Set your layout manager as Gridlayout manager for recycler view as below:
recyclerview.layoutManager = GridLayoutManager(this, 2, OrientationHelper.VERTICAL, false)
Hope it will work fine. Let me know if you find any issues.

ListView not utilizing full space in FrameLayout

I have an activity layout with 2 FrameLayout:
<?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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="de.sioned.multivoc.AddWordActivity"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<include layout="#layout/toolbar_layout"/>
<ScrollView
android:id="#+id/scLeft"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:id="#+id/paneLeft"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/paneLeftTop"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/paneLeftBottom"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/paneLeftTop"/>
</RelativeLayout>
</ScrollView>
</android.support.design.widget.CoordinatorLayout>
The 2nd FrameLayout paneLeftBottom will at some point contain the following fragment:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:id="#+id/lyTop"
android:layout_width="match_parent"
android:layout_height="wrap_content">
...some static fields...
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#id/lyTop">
<ListView
android:id="#+id/lvResult"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="8dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginLeft="16dp"/>
</RelativeLayout>
In this configuration the ListView is only shown with a height of one of it's rows instead several rows utilizing the available space. The ListView works fine but only one row at a time is displayed.
The same ListView fragment works fine when I put it into a 2-pane landscape layout. How can I make the ListView use the available space ?
Edit:
Found a partial solution by switching to a LinearLayout within the ScrollView. Only problem left is, that the bottom Framelayout overlays a bit of the top FrameLayout when I load the said fragment into it. But that is acceptable in this case as it is only temporary to select some data.
<ScrollView
android:id="#+id/scLeft"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
>
<LinearLayout
android:id="#+id/paneLeft"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/paneLeftTop"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/paneLeftBottom"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
</ScrollView>

This right here
android:layout_width="match_parent"
android:layout_height="match_parent"
Should be
android:layout_width="match_parent"
android:layout_height="wrap_content"

Android Scroll View space in the bottom

I want a help for design a screen.. I want to make a details screen, with a picture and a text (scrollabe).. But when i test, the text doesnt fill all the space...Its puts a empty space at the bottom of the text... How can i fill all the layout with the text?
<?xml version="1.0" encoding="utf-8"?>
<android.widget.RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.rs.app.paginas.antena_detalhe">
<LinearLayout
android:layout_width="368dp"
android:layout_height="495dp"
android:orientation="vertical"
android:weightSum="1"
tools:layout_editor_absoluteX="8dp"
tools:layout_editor_absoluteY="8dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_weight="0.05"
android:gravity="center_vertical|center_horizontal"
android:orientation="horizontal"
tools:layout_editor_absoluteX="8dp"
tools:layout_editor_absoluteY="0dp">
<ImageView
android:id="#+id/imgAntena"
android:layout_width="200dp"
android:layout_height="200dp"
android:layout_marginTop="10dp"
android:layout_weight="1"
app:srcCompat="#mipmap/baloon" />
</LinearLayout>
<TextView
android:id="#+id/txtTitulo"
android:layout_width="match_parent"
android:layout_height="30dp"
android:layout_marginBottom="10dp"
android:layout_marginTop="10dp"
android:gravity="center"
android:text="Nome" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:adjustViewBounds="true"
android:fillViewport="true"
>
<TextView
android:id="#+id/txtDetalhes"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:scrollbars="vertical" />
</ScrollView>
</LinearLayout>
</android.widget.RelativeLayout>
and the screen:

You need to change to "match_parent" in your first LinearLayout´s height and widht parameters to fill all the screen, cause the parent in this case is your phone' screen, but if you define values in dp as shown in your code (495dp) then it´ll fill just that dimensions, and the screen dimensions change with every phone and his own screen size, that´s why it works in some little screen devices, and with bigger screens probably wont do it, the best solution to make it work with every screen size is changing your code like this:
<?xml version="1.0" encoding="utf-8"?>
<android.widget.RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.rs.app.paginas.antena_detalhe">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1"
tools:layout_editor_absoluteX="8dp"
tools:layout_editor_absoluteY="8dp">
...
Hope it helps,

You should change from:
<?xml version="1.0" encoding="utf-8"?>
<android.widget.RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.rs.app.paginas.antena_detalhe">
<LinearLayout
android:layout_width="368dp"
android:layout_height="495dp"
android:orientation="vertical"
android:weightSum="1"
tools:layout_editor_absoluteX="8dp"
tools:layout_editor_absoluteY="8dp">
to:
<?xml version="1.0" encoding="utf-8"?>
<android.widget.RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.rs.app.paginas.antena_detalhe">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1">

In your layout you have defined fixed dimensions for your linear layout which contains your scroll view and other widgets. I would suggest changing your root layout to Linear Layout with maximum width and height :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
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:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="1"
tools:layout_editor_absoluteX="8dp"
tools:layout_editor_absoluteY="8dp"
tools:context="com.example.rs.app.paginas.antena_detalhe">
And remove the child linear layout.
Reason you were getting extra space was because of fixed height,which may be not present on phone with lesser height.

how to have 2 relative layouts divided by half in activity?

i want to divide my screen in half vertically, and do a different color in each half,
i was trying to use this solution mentioned in here>
Android: 2 relative layout divided in half screen
but it doesn't work for me.
this is my layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:baselineAligned="false"
android:orientation="horizontal"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context=".activities.alignmentActivities.Add_New_Project_Activity"
tools:showIn="#layout/app_bar_add__new__project_">
<RelativeLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#f00000"
android:layout_weight="1">
</RelativeLayout>
<RelativeLayout
android:layout_width="0dp"
android:background="#00b0f0"
android:layout_height="wrap_content"
android:layout_weight="1">
</RelativeLayout>
</LinearLayout>
how can i achieve the desired effect of 2 layouts each takes half the screen vertical \ what am i doing wrong then the example mentioned in the link ?

You may Try to use this :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="2"
android:orientation="horizontal"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<RelativeLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:background="#f00000"
android:layout_weight="1">
</RelativeLayout>
<RelativeLayout
android:layout_width="0dp"
android:background="#00b0f0"
android:layout_height="match_parent"
android:layout_weight="1">
</RelativeLayout>
Output :

Add the following attribute in your LinearLayout
android:weightSum="2"
After adding this your code will work.
WeightSum attribute defines the total number of equal divisions you want it to be divided.If you want it to be divided into 3 parts, change its value as 3.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<RelativeLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#color/red">
</RelativeLayout>
<RelativeLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#color/white">
</RelativeLayout>
</LinearLayout>
**Preview Image Link**
[1]: http://i.stack.imgur.com/6JKTP.png

If you want to divide screen vertically than you need to use android:orientation="vertical" and in child layout use android:layout_width="match_parent"
check below xml,
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:baselineAligned="false"
android:orientation="vertical"
android:weightSum="2"
app:layout_behavior="#string/appbar_scrolling_view_behavior" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#f00000" >
</RelativeLayout >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#00b0f0" >
</RelativeLayout >
</LinearLayout >

the RecyclerView I am injecting does not appear?

Here is my xml file:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:baselineAligned="false"
android:orientation="horizontal">
<RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:dividerHeight="10dp"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:showIn="#layout/content_main">
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/DrawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:elevation="7dp">
<!-- Framelayout to display Fragments -->
<FrameLayout
android:id="#+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:id="#+id/tool_bar"
layout="#layout/tool_bar"></include>
</LinearLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/RecyclerView"
android:layout_width="320dp"
android:layout_height="match_parent"
android:layout_gravity="left"
android:background="#ffffff"
android:scrollbars="vertical">
</android.support.v7.widget.RecyclerView>
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1">
<android.support.v7.widget.RecyclerView
android:id="#+id/threadRecyclerView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scrollbars="vertical" />
</RelativeLayout>
</LinearLayout>
The main reason I did this design was to try to display the
<android.support.v7.widget.RecyclerView
android:id="#+id/threadRecyclerView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scrollbars="vertical" />
properly. However, when it is not being displayed at all. Before adding the two relativelayouts, I have one relative layout and the recyclerview did display, but it match_parent for every item of the list and was not able to fix it. How can I display my view properly?

The problem probably has to do with the layout_height="wrap_content" on your RecyclerView. You need to use setAutoMeasureEnabled(true) for wrap_content to work properly with a RecyclerView.
Here's an example:
RecyclerView threadRecyclerView = (RecyclerView)findViewById(R.id.threadRecyclerView);
threadRecyclerView.getLayoutManager().setAutoMeasureEnabled(true);
And your your XML should look something like this:
<android.support.v7.widget.RecyclerView
android:id="#+id/threadRecyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="vertical"
app:layoutManager="LinearLayoutManager"/>
Hope that helps. :)
Note that setAutoMeasureEnabled only works properly for Android Support Library +23.2