Develop Reference

How to fix some views in Relative Layout

I have implemented simple relative layout for chat inside one of fragments layout called "Chat". The problem is that when I click EditText to type message, Linear Layout for sending messages disappears and messages are superimposed on the items above(I want them no to overlay any element except recycler view).
How to fix it?
Below I put the code of layout and screenshots Layout and Layout after click
<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=".ChatFragment">
<Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_marginStart="10dp"
android:layout_marginTop="10dp"
android:layout_marginEnd="10dp"
android:layout_marginBottom="10dp"
android:theme="#style/ThemeOverlay.AppCompat.Light"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/start_at_info"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:text="Start at"
android:textSize="16sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</Toolbar>
<LinearLayout
android:id="#+id/chat_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#color/white"
android:gravity="center_horizontal"
android:orientation="horizontal"
app:layout_constraintBottom_toBottomOf="parent">
<ImageButton
android:id="#+id/attachBtn"
android:layout_width="50dp"
android:layout_height="50dp"
android:background="#null"
android:src="#drawable/ic_attach_file"
tools:ignore="SpeakableTextPresentCheck" />
<EditText
android:id="#+id/messageEt"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#null"
android:hint="Start typing..."
android:inputType="textCapSentences|textMultiLine" />
<ImageButton
android:id="#+id/send_btn"
android:layout_width="50dp"
android:layout_height="50dp"
android:background="#null"
android:src="#drawable/ic_send"
tools:ignore="SpeakableTextPresentCheck" />
</LinearLayout>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recycler_view_chat"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/chat_layout"
android:layout_below="#+id/toolbar"
android:background="#AEFFFFFF"
tools:listitem="#layout/message_left" />
</RelativeLayout>

Put ImageButton between two view groups

I have a LinearLayout with a Toolbar inside it and an EditText and a Button. I'm using images to express what i want, it is simple:
This is what I have right now: (the ImageButton with the logo is in the Toolbar)
And this is what I want to achieve: (The ImageButton with the logo is between the Toolbar and the LinearLayout)
This is my XML code for the layout 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"
xmlns:fab="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:background="#color/secondColor"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/mainColor"
android:padding="10dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="5dp"
android:paddingLeft="-10dp">
<ImageButton
android:id="#+id/btnMenu"
style="#android:style/Widget.DeviceDefault.ImageButton"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="10dp"
android:layout_marginTop="5dp"
android:layout_weight="1"
android:background="#null"
android:src="#drawable/menu_principal" />
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="3dp"
android:layout_weight="5"
android:fontFamily="#font/roboto_medium"
android:text="#string/app_name"
android:textAlignment="center"
android:textColor="#android:color/white"
android:textSize="24sp" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageButton
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="false"
android:layout_marginStart="0dp"
android:layout_marginTop="0dp"
android:background="#null"
android:scaleType="fitXY"
android:src="#drawable/spotify_logo" />
</RelativeLayout>
</LinearLayout>
</android.support.v7.widget.Toolbar>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="text"
android:hint="#string/editReminderTitleHint"
/>
<Button
android:id="#+id/button"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:text="Button" />
</LinearLayout>

You can achieve this by changing your LinearLayout top-level view into a ConstraintLayout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"/>
<EditText
android:id="#+id/edit"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="#+id/toolbar"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
tools:hint="Reminder title"/>
<Button
android:id="#+id/button"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintTop_toBottomOf="#+id/edit"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
tools:text="BUTTON"/>
<ImageButton
android:layout_width="72dp"
android:layout_height="72dp"
android:layout_marginRight="16dp"
android:layout_marginEnd="16dp"
app:layout_constraintTop_toBottomOf="#+id/toolbar"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toBottomOf="#+id/toolbar"
app:layout_constraintEnd_toEndOf="parent"/>
</android.support.constraint.ConstraintLayout>
The important part here is that you constrain both the top and bottom of the ImageButton to the bottom of the Toolbar. This will center it on the bottom edge of the toolbar.
Note that I didn't set a special background for my example ImageButton, but you can make it a circle and it will work just fine.

Align layout at the bottom of the screen

I would like to have the same as on the enclosed image with the scanning information widgets (progressbar, textview and button) to stay at the bottom of the screen. However when I run my app they go at the top of the screen when the ListView is empty.
I tried a lot of methods described in other topics, but I still could not make it work.
Do you have some suggestions about which layout I should use in this case?
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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">
<ListView
android:id="#+id/ListViewDevices"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="60dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<FrameLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/ListViewDevices">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ProgressBar
android:id="#+id/progressBarDevice"
style="?android:attr/progressBarStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/lblScanningStatus"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/lblScanningStatus"
android:layout_width="wrap_content"
android:layout_height="24dp"
android:layout_marginStart="8dp"
android:layout_marginBottom="20dp"
android:text="#string/scan_in_progress"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="#+id/progressBarDevice" />
<Button
android:id="#+id/btnPauseScan"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:text="#string/pause_scan"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent" />
</android.support.constraint.ConstraintLayout>
</FrameLayout>
</android.support.constraint.ConstraintLayout>

This is the way I did it an app I worked on previously. Using a RelativeLayout as the main shell we are able to position elements in any way inside it.
<?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"
android:layout_weight="10"
android:background="#color/white"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="55dp"
android:layout_alignParentBottom="true"
android:background="#color/grey_font">
<ProgressBar
android:id="#+id/progressBarDevice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_centerVertical="true"
android:layout_marginLeft="12dp" />
<TextView
android:id="#+id/lblScanningStatus"
android:layout_width="wrap_content"
android:layout_height="24dp"
android:layout_centerVertical="true"
android:layout_marginLeft="24dp"
android:layout_toRightOf="#id/progressBarDevice"
android:text="Scanning" />
<Button
android:layout_marginRight="16dp"
android:layout_centerVertical="true"
android:background="#color/orange_pay"
android:id="#+id/btnPauseScan"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginBottom="8dp"
android:text="PAUSE" />
</RelativeLayout>
</RelativeLayout>

I would first simplify the layout by flattening it slightly. Removed the FrameLayout that holds the bottom Constraint.. Then made the listViewDevices constrain bottom to top of the bottom contraint layout (which i have called scanner)..
Looks correct in my layout editor.
<android.support.constraint.ConstraintLayout
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">
<ListView
android:id="#+id/ListViewDevices"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="60dp"
app:layout_constraintBottom_toTopOf="#id/scanner"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<android.support.constraint.ConstraintLayout
android:id="#+id/scanner"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
app:layout_constraintHorizontal_bias="1"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#id/ListViewDevices"
app:layout_constraintBottom_toBottomOf="parent">
<ProgressBar
android:id="#+id/progressBarDevice"
style="?android:attr/progressBarStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/lblScanningStatus"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/lblScanningStatus"
android:layout_width="wrap_content"
android:layout_height="24dp"
android:layout_marginStart="8dp"
android:layout_marginBottom="20dp"
android:text="SCANNING FOR NEW DEVICES..."
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="#+id/progressBarDevice" />
<Button
android:id="#+id/btnPauseScan"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:text="PAUSE"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent" />
</android.support.constraint.ConstraintLayout>

I would rather prefer to add LinearLayout as root layout.
So when you scroll down or up then it will not scroll with your layout when its empty.
So when your listview is empty then also it will be in the bottom of the screen only.
<?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:orientation="vertical" >
<ListView
android:id="#+id/ListViewDevices"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="60dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<FrameLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/ListViewDevices">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ProgressBar
android:id="#+id/progressBarDevice"
style="?android:attr/progressBarStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/lblScanningStatus"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/lblScanningStatus"
android:layout_width="wrap_content"
android:layout_height="24dp"
android:layout_marginStart="8dp"
android:layout_marginBottom="20dp"
android:text="#string/scan_in_progress"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="#+id/progressBarDevice" />
<Button
android:id="#+id/btnPauseScan"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:text="#string/pause_scan"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent" />
</LinearLayout>
</FrameLayout>
</LinearLayout>

Thank you for your answers but none of them works. Sometimes it looks fine in Android Studio but when I test my application on a real phone the widgets are displayed on top of the screen.
If I will find a working solution I will post it here.

Bottom Align Floating Action Button - Constraint Layout

I'm simply trying to do this alignment with constraintlayout but I'm not sure It's possible or not.
How can I do it ?
Sample xml
<android.support.constraint.ConstraintLayout
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">
<ImageView
android:id="#+id/imageView"
android:layout_width="match_parent"
android:layout_height="320dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/com_facebook_profile_picture_blank_portrait" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/floatingActionButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
app:srcCompat="#android:color/holo_green_light" />
My workaround.

Constraining both the top and the bottom of the FloatingActionButton to the bottom of the ImageView will center it on the edge. Also android:layout_width="match_parent" of the ImageView should be changed to 0dp to enforce horizontal constraints. Example XML looks like this:
<android.support.constraint.ConstraintLayout
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">
<ImageView
android:id="#+id/imageView"
android:layout_width="0dp"
android:layout_height="320dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/com_facebook_profile_picture_blank_portrait" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/floatingActionButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="#id/imageView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/imageView"
app:srcCompat="#android:color/holo_green_light" />
</android.support.constraint.ConstraintLayout>

You can do it with constraint layout with the following code.
<android.support.constraint.ConstraintLayout
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">
<ImageView
android:id="#+id/imageView"
android:layout_width="match_parent"
android:layout_height="320dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="4dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/carrick" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/floatingActionButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_marginBottom="176dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:srcCompat="#drawable/bcslogo" />
</android.support.constraint.ConstraintLayout>
otherwise you can use relative layout instead of constraint you can place your all content in relative layout like following
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_marginBottom="20dp"
android:id="#+id/notesbg"
android:layout_gravity="bottom|end">
<android.support.v7.widget.RecyclerView
android:layout_marginTop="2dp"
android:id="#+id/myRecyclernote"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<android.support.design.widget.FloatingActionButton
android:id="#+id/myFAB"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_gravity="end|bottom"
android:layout_marginEnd="20dp"
android:layout_marginBottom="50dp"
app:backgroundTint="#00b4ed"
android:src="#drawable/floatingbtn"
app:borderWidth="0dp"
app:elevation="8dp" />
</RelativeLayout>

Android: LinearLayout going out of screen when using weight

Why is 3rd linear layout (containg two text views) being pushed out of screen in following xml file? Simultaneous design in Android Studio is showing expected behaviour but when testing in phone, 3rd linear layout is being partially visible.
What I am trying to achieve is dividing screen into 3 parts (10%, 80% and 10%).
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal">
<TextView
android:id="#+id/messageTextView"
android:layout_height="match_parent"
android:layout_width="0dp"
android:layout_weight="3"
android:text="Place a stone" />
<Button
android:id="#+id/resetButton"
android:layout_height="match_parent"
android:layout_weight="1"
android:layout_width="0dp"
android:text="Reset" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="8">
<me.varunon9.fito.CanvasBoardView
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal">
<TextView
android:id="#+id/userInfoTextView"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent"
android:background="#drawable/focussed_background"
android:text="Your turn\nStones left: 9" />
<TextView
android:id="#+id/computerInfoTextView"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent"
android:text="Computer's turn\nStones left: 9" />
</LinearLayout>
Even this xml is also being pushed out of screen-
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/root"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:id="#+id/topBar"
android:orientation="horizontal"
android:layout_alignParentTop="true">
<TextView
android:id="#+id/messageTextView"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:text="Place a stone" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="40dp"
android:layout_marginBottom="40dp"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:id="#+id/bottomBar"
android:layout_marginBottom="0dp"
android:orientation="horizontal"
android:layout_alignParentBottom="true">
<TextView
android:id="#+id/userInfoTextView"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:text="User Info" />
</LinearLayout>
</RelativeLayout>
I am using Fragment (Tabbed Activity). When using same xml layout (above snippets) in activity, things are working fine. Problem seems with Fragment.

To avoid nested weights (bad for performance), you can use Relative layout.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/root"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:id="#+id/topBar"
android:orientation="horizontal"
android:layout_alignParentTop="true"/>
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="40dp"
android:layout_marginBottom="40dp"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:id="#+id/bottomBar"
android:orientation="horizontal"
android:layout_alignParentBottom="true"/>
</RelativeLayout>

Instead of using nested weights, which happen to be terribly bad for performance, use ConstraintLayout which is very easy to implement in the layout editor.
If you have never used it before it can appear to be a bit complicated; but that is not the case. Refer to this link to get an idea on how to implement a ConstraintLayout.
Here is the code for what you want to achieve
<android.support.constraint.ConstraintLayout 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="vertical">
<android.support.constraint.Guideline
android:id="#+id/guideline1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.1"
tools:layout_editor_absoluteY="51dp"
tools:layout_editor_absoluteX="0dp" />
<android.support.constraint.Guideline
android:id="#+id/guideline2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.9"
tools:layout_editor_absoluteY="460dp"
tools:layout_editor_absoluteX="0dp" />
<android.support.constraint.Guideline
android:id="#+id/guideline3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.5"
tools:layout_editor_absoluteY="0dp"
tools:layout_editor_absoluteX="192dp" />
<android.support.constraint.Guideline
android:id="#+id/guideline4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.75"
tools:layout_editor_absoluteY="0dp"
tools:layout_editor_absoluteX="288dp" />
<TextView
android:id="#+id/stoneTV"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:text="#string/stoneText"
app:layout_constraintBaseline_toBaselineOf="#+id/resetButton"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="#+id/guideline4"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp" />
<Button
android:id="#+id/resetButton"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:text="#string/reset_text"
app:layout_constraintBottom_toTopOf="#+id/guideline1"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="#+id/guideline4"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.64"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:layout_marginTop="24dp" />
<TextView
android:id="#+id/playerTV"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="#string/player_text"
app:layout_constraintBottom_toBottomOf="parent"
android:layout_marginBottom="16dp"
app:layout_constraintTop_toTopOf="#+id/guideline2"
android:layout_marginTop="8dp"
app:layout_constraintRight_toLeftOf="#+id/guideline3"
android:layout_marginRight="8dp"
android:layout_marginLeft="8dp"
app:layout_constraintLeft_toLeftOf="parent"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
app:layout_constraintHorizontal_bias="0.0" />
<TextView
android:id="#+id/computerTV"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="#string/computer_text"
app:layout_constraintTop_toTopOf="#+id/guideline2"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="parent"
android:layout_marginBottom="16dp"
android:layout_marginLeft="8dp"
app:layout_constraintLeft_toLeftOf="#+id/guideline3"
android:layout_marginRight="8dp"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintHorizontal_bias="0.0"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp" />
<FrameLayout
android:id="#+id/contentLayout"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginLeft="8dp"
app:layout_constraintLeft_toLeftOf="parent"
android:layout_marginRight="8dp"
app:layout_constraintRight_toRightOf="parent"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toTopOf="#+id/guideline2"
app:layout_constraintTop_toTopOf="#+id/guideline1"
android:layout_marginTop="8dp">
<!--Add your other view(s) here-->
</FrameLayout>
</android.support.constraint.ConstraintLayout>

Found it! Problem was not with fragment layout but its container, i.e. ViewPager. I am using Tabbed Activity and by default View Pager was too long (going out of screen).
Here is the solution: Android Tabbed Activity Bottom off Screen
Thanks for effort guys.

Hiiii
I think you don't have proper info, how to use "Weightsum".
well no issue, i will explain you,
When you want to use "Weight" in linear layout you should use "Weightsum" in your main "LinearLayout" after that you can use sub layout or widgets in sum of weight like below code.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="1"
android:orientation="horizontal">
<TextView
android:id="#+id/messageTextView"
android:layout_height="match_parent"
android:layout_width="0dp"
android:layout_weight="0.5"
android:text="Place a stone" />
<Button
android:id="#+id/resetButton"
android:layout_height="match_parent"
android:layout_weight="0.5"
android:layout_width="0dp"
android:text="Reset" />
</LinearLayout>