Develop Reference

How to Set a Button at a fixed position even when respective Activity has ScrollView

Is there a way to use some non scrollable view when the activity has ScrollView component?
I want that my button behaves similar to the button in the question below, I want it fixed on the bottom of the UI too:
how to set a button at a fixed location on the bottom of UI?
Here's my layout code:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<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:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent ">
<FrameLayout
android:id="#+id/map_frameview"
android:layout_width="match_parent"
android:layout_height="200dp">
</FrameLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="20dp">
</LinearLayout>
</LinearLayout>
</ScrollView>
Thanks in advance!

The link you have attached in your question shows how you can do it. You can use RelativeLayout for this. The idea is, you need to tell a button to stay on bottom of the screen & tell the scrollview to stay above the Button along with it's scrollable content like:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="#+id/btnMy"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"/>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/btnMy">
<LinearLayout
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:layout_above="#id/btnMy"
android:orientation="vertical">
<FrameLayout
android:id="#+id/map_frameview"
android:layout_width="match_parent"
android:layout_height="200dp">
</FrameLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="20dp">
</LinearLayout>
</LinearLayout>
</ScrollView>
</RelativeLayout>

Vertical LinearLayout with ImageButton: Problems with different screens

I have 2 vertical linear layouts in one horizontal parent linear layout like this:
<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:textAllCaps="false"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:orientation="vertical"
<android.support.design.widget.AppBarLayout ...
<android.support.v7.widget.Toolbar... />
</android.support.design.widget.AppBarLayout>
<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:orientation="horizontal">
<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="0dp"
android:layout_height="match_parent"
android:layout_weight="0.1"
android:orientation="vertical"
android:id="#+id/imagebtn_layout">
</LinearLayout>
<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="0dp"
android:layout_height="match_parent"
android:layout_weight="0.9"
android:layout_marginRight="1dp"
android:orientation="vertical"
android:id="#+id/button_layout">
</LinearLayout>
</LinearLayout>
</LinearLayout>
Now I add 2 buttons programmatically to their views:
One into imagebtn_layout and the other one into button_layout with the parameters: (LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT). The text of the button is set to 20.6f. The picture for the image button has 44x44 pixels.
The result looks fine on my Pixel 2 (1920x1080), but horrible e.g. on 2560x1440:
I'm not sure what's wrong. The result should be that the ImageButton and the normal button are on all screens at the same line.
Edit: Solved after using the solution from gmetax and setting android:layout_height in the parent view to "wrap_content" and adapting font size of text button.

you have to specify the width of the image that you know and then let the other fill the empty space.
<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="16dp"
android:layout_height="match_parent"
android:layout_weight="0"
android:orientation="vertical"
android:id="#+id/imagebtn_layout">
</LinearLayout>
<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:layout_weight="1"
android:layout_marginRight="1dp"
android:orientation="vertical"
android:id="#+id/button_layout">
</LinearLayout>

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"

LinearLayout child pushes other views

My activity's main layout is a LinearLayout. It has two children as an example. A RelativeLayout and a Button. The width and height of RelativeLayout are set to match_parent and the Button, match_parent and wrap_content. Unfortunately, RelativeLayout pushes the button below until it is not visible.
<?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:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
Why is this happening? I tried a tweak for the RelativeLayout which is changing the height to 0dp and weight to 1. It does make the Button visible but I am not sure if this is advisable as I only changed the height and weight of RelativeLayout.

Try this
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:fillViewport="true"
android:layout_height="match_parent">
<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:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</ScrollView>
OR
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:fillViewport="true"
android:layout_height="match_parent">
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_above="#+id/btn"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:src="#drawable/disha"
android:layout_height="match_parent" />
</RelativeLayout>
<Button
android:id="#+id/btn"
android:layout_width="match_parent"
android:layout_margin="10dp"
android:text="NIlu"
android:layout_alignParentBottom="true"
android:layout_height="wrap_content" />
</RelativeLayout>
</ScrollView>

LinearLayout is either Vertical or Horizontal. Your first child which is RelativeLayout is matchParent then it will cover whole Outer layout .
Solution can be multiple its depends upon where exactly you want to place your Button . One way is .
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_above="#+id/btn"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
<Button
android:id="#+id/btn"
android:layout_width="match_parent"
android:layout_margin="10dp"
android:layout_alignParentBottom="true"
android:layout_height="wrap_content" />
</RelativeLayout>

Change your Code Like
<?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:orientation="vertical">
<RelativeLayout
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
<Button
android:text="#string/app_name"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
Worked Foe me..
you should Give android:layout_weight="1" to relative Layout

//try 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:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:layout_width="match_parent"
android:layout_height="200dp" />
</RelativeLayout>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>

this seems to work just fine.
I tried a tweak for the RelativeLayout which is changing the height to
0dp and weight to 1
the code look like this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</RelativeLayout>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>

In your layout, RelativeLayout is the first child of your LinearLayout. Since, you have set the height and width to match_parent it takes up all available space pushing the button out of the view.
When you set the RelativeLayout height to 0dp and weight to 1, LinearLayout first lays out all children based on the dimensions specified, and then distributes the remaining space based on the weight. In this case, the relative layout is 0dp, so it takes no space in first pass, and the button takes up space based on its onMeasure (lets say 100dp). The remaining space is now given to RelativeLayout because its weight is set to 1. Refer to the LinearLayout documentation for more details here.
You should consider using a RelativeLayout/ConstraintLayout as your root element.

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