Develop Reference

Leave bottom layout button hidden when adjustResize is used within a scroll view

I have a layout where the main content is scrollable. At the same time the confirm button is always visible at the bottom so no matter where you are scrolling you can always confirm and see the button.
Whenever I touch a EditText the ScrollView scrolls up so the keyboard does not hide the EditText. This is done using android:windowSoftInputMode="adjustResize".
The problem is, that the button always also scrolls up when I touch the EditText. I do not want this behaviour. I want the button to stay hidden behind the keyboard.
Here is the layout I use:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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:fitsSystemWindows="true"
tools:context=".SecondFragment">
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
android:fillViewport="true"
app:layout_constraintBottom_toTopOf="#+id/button_second"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_marginTop="300dp"
android:hint="TYPE..."
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.core.widget.NestedScrollView>
<Button
android:id="#+id/button_second"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
android:text="#string/previous"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
And here are two pictures demonstrating:
On the second picture, the Button also scrolls up. But I only want the keyboard below the EditText the button shall stay hidden at the bottom behind the keyboard (Like it would without adjustResize
EDIT:
As suggested with FrameLayout it works when I have no content that needs to scroll. But once I add another EditText like below it stops working again (I am also unfamiliar with FrameLayout, I always only use ConstraintLayout, So I assume somehow the ScrollView has to stay on top of the button anyway)
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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=".SecondFragment">
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top|center"
app:layout_constraintBottom_toTopOf="#+id/button_second"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:id="#+id/editText"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_marginTop="300dp"
android:hint="TYPE..."
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:layout_width="200dp"
android:layout_height="wrap_content"
android:hint="TYPE..."
android:layout_marginTop="400dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.502"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/editText" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.core.widget.NestedScrollView>
<Button
android:id="#+id/button_second"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
android:layout_gravity="bottom|center"
android:text="#string/previous"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
</FrameLayout>

Is this what you expected?
activity_main.xml
<FrameLayout 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=".MainActivity">
<include
layout="#layout/layout_item"
/>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/floatingActionButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:src="#android:drawable/ic_menu_add"
android:layout_gravity="bottom|right"
android:layout_marginBottom="16dp"
android:clickable="true" />
</FrameLayout>
layout_item.xml
<FrameLayout 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"
>
<EditText
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_gravity="bottom|center"
android:layout_marginBottom="200dp"
android:hint="TYPE..." />
<Button
android:id="#+id/button_second"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|center"
android:layout_marginBottom="20dp"
android:text="previous"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
</FrameLayout>

Fragment is not fully displayed when used in activity with actionbar

In my activity (ConstraintLayout) I have an actionbar and a container (for my viewpage adapater). In this container I am displaying various fragments.
My problem is that the fragments (also in ConstraintLayout) are not completely displayed, meaning they are cut off at the end. My assumption is that this happens because the fragment "doesnt know" about the action bar in the activity and thus thinks it has the full screen to use but instead this part which the action bar takes up is moved down and off from the screen. That's just an assumption maybe I am completely wrong. Anybody can help on how to make sure the fragment layout is somehow "fitted" right to the screen?
my activity xml with the actionbar:
<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="wrap_content"
tools:context=".TourActivity">
<include
android:id="#+id/app_bar"
layout="#layout/app_bar"
tools:layout_editor_absoluteY="8dp"></include>
<android.support.v4.view.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
app:layout_constraintTop_toBottomOf="#+id/app_bar" />
</android.support.constraint.ConstraintLayout>
the fragment 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"
tools:context=".TourActivity">
<TextView
android:id="#+id/test"
android:layout_width="388dp"
android:layout_height="wrap_content"
android:layout_marginStart="24dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="24dp"
android:gravity="center"
android:text="testtest testtest"
android:textSize="25dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.52"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="#+id/imageView"
android:layout_width="365dp"
android:layout_height="185dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/question"
tools:src="#android:color/darker_gray" />
<Button
android:id="#+id/answerButton1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="156dp"
android:layout_marginEnd="8dp"
android:text="answerButton1"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/imageView" />
<Button
android:id="#+id/answerButton2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="32dp"
android:layout_marginEnd="8dp"
android:text="answerButton2"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/answerButton1" />
<Button
android:id="#+id/answerButton3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="32dp"
android:layout_marginEnd="8dp"
android:text="answerButton3"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/answerButton2" />
</android.support.constraint.ConstraintLayout>

<android.support.v4.view.ViewPager
android:id="#+id/container"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="8dp"
app:layout_constraintTop_toBottomOf="#+id/app_bar"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent" />
Pls give that a go.

Use Relative Layout in the main XML file
<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="wrap_content"
tools:context=".TourActivity">
<include
android:id="#+id/app_bar"
layout="#layout/app_bar"
tools:layout_editor_absoluteY="8dp"/>
<android.support.v4.view.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/app_bar" />
</RelativeLayout>

constraint to bottom but allow keyboard to cover the view

I have a view constrained to bottom of the parent. I also have text fields on top. how ever when the keyboard shows up, it will push bottom views up which will cover my text fields.
I have everything inside a scroll view, keyboard should cover the bottom view and I should be able to scroll to bottom to reach the bottom view.
Here is a simple example. I manually increased the height to reproduce the problem easier. I actually have more views, this is just for demonstration.
note that fillViewPort is also enabled.
<?xml version="1.0" encoding="utf-8"?>
<ScrollView 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:fillViewport="true">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:id="#+id/edit_text_1"
android:layout_width="0dp"
android:layout_height="180dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<EditText
android:id="#+id/edit_text_2"
android:layout_width="0dp"
android:layout_height="180dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/edit_text_1" />
<View
android:id="#+id/bottom_view"
android:layout_width="0dp"
android:layout_height="160dp"
android:background="#color/grey_500"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>

You just simply need to put the ScrollView inside a ConstraintLayout
like this:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
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">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:layout_width="0dp"
android:layout_height="180dp"
android:inputType="textPersonName"
android:ems="10"
android:id="#+id/edit_text_1"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<EditText
android:layout_width="0dp"
android:layout_height="180dp"
android:inputType="textPersonName"
android:ems="10"
android:id="#+id/edit_text_2"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/edit_text_1"/>
<View
android:layout_width="0dp"
android:layout_height="160dp"
android:id="#+id/bottom_view"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/edit_text_2"/>
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>

Why does convertng to Constraint Layout distort view

My original layout was code as shown below:
<?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:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.udacity.gradle.builditbigger.Camera.AutoFitTextureView
android:id="#+id/textureView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="3"/>
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="0dp"
android:id="#+id/photo_thumbnail_recyclerview"
android:layout_weight="1"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="snap"
android:id="#+id/snap"/>
</LinearLayout>
The textureView takes up a sizable amount of the fragment. When I switch to having a Constraint Layout as shown in the code below:
<?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:orientation="vertical">
<com.udacity.gradle.builditbigger.Camera.AutoFitTextureView
android:id="#+id/textureView"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toTopOf="#+id/photo_thumbnail_recyclerview"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
/>
<android.support.v7.widget.RecyclerView
android:id="#+id/photo_thumbnail_recyclerview"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
/>
<ImageButton
android:id="#+id/switchcamera_imageButton"
android:layout_width="75dp"
android:layout_height="75dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:background="#null"
android:scaleType="fitCenter"
app:layout_constraintBottom_toBottomOf="#+id/textureView"
app:layout_constraintEnd_toEndOf="parent"
app:srcCompat="#drawable/ic_switch_camera_white_24px" />
<ImageButton
android:id="#+id/takepicture_imageButton"
android:layout_width="75dp"
android:layout_height="75dp"
android:layout_marginBottom="8dp"
android:background="#null"
android:scaleType="fitCenter"
app:layout_constraintBottom_toBottomOf="#+id/textureView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:srcCompat="#drawable/ic_camera_white_24px" />
</android.support.constraint.ConstraintLayout>
The texture view only takes up the width of the parent fragment, which is what I want. The height, however, isn't much more than the height of the imagebuttons that should be located at the bottom of the textureView. Also, the recyclerview doesn't show anymore. Any have a hypothesis as to why?

in order to get the layout i wanted, I switched from a constraintlayout to a relativelayout

RecyclerView doesnt scroll down all the way if there are many items

Right now I'm using a simple RecyclerView that's supposed to be showing up under a TextView. However when I populate the RecyclerView with more items, it gets cut off and wont scroll down. What I remember from RecyclerViews is that every implementation I've done basically worked out of the box when it comes to scrolling.
<?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"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="david.projectclouds.MainActivity"
tools:showIn="#layout/app_bar_main">
<TextView
android:id="#+id/Date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingBottom="#dimen/_20sdp"
android:paddingLeft="#dimen/_20sdp"
android:paddingTop="#dimen/_20sdp"
android:textAllCaps="true"
android:textColorLink="#color/colorAccent"
android:textSize="30sp"
android:typeface="sans"
/>
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="#+id/Date"
android:scrollbars="vertical"
/>
</android.support.constraint.ConstraintLayout>
This is my current main activity XML. Tell me if I need to add more code.

Try to use constraints
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/Date"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp" />