We Keep Coding

How to fill the entire screen in a RecyclerView

I have a problem filling the entire screen in a reclycle view.
This is my xml code of the cardview and my view where the reclyclerview is:
CardView:
This is how it looks in the Ide Android studio:
Layout where the Reclycler view is:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="#+id/textAmount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:padding="4dp"
android:text="30"
android:textSize="30sp" />
<TextView
android:id="#+id/textIdPerson"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:padding="4dp"
android:text="30"
android:textSize="30sp" />
<TextView
android:id="#+id/textId"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:padding="4dp"
android:text="30"
android:textSize="30sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="4dp">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="4dp"
app:cardCornerRadius="4dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/textAmount"
android:padding="8dp"
android:text="ID"
android:textSize="30sp"
android:layout_weight="1"
android:gravity="center"/>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/textIdPerson"
android:padding="8dp"
android:layout_weight="1"
android:text="UserId"
android:textSize="30sp"
android:gravity="center"/>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/textId"
android:padding="8dp"
android:textSize="30sp"
android:layout_weight="1"
android:text="Amount"
android:gravity="center"/>
</LinearLayout>
</androidx.cardview.widget.CardView>
<androidx.recyclerview.widget.RecyclerView
android:layout_gravity="center"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:id="#+id/recycler_view"
android:nestedScrollingEnabled="false"
tools:listitem="#layout/list_row_main"/>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_alignParentBottom="true">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="atras"
android:onClick="#{viewmodel::back}"
android:layout_weight="1"
android:layout_marginRight="4dp"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Siguiente"
android:onClick="#{viewmodel::next}"
android:layout_weight="1"/>
</LinearLayout>
Image:
enter image description here
But when I start the application on the device it looks like this
enter image description here

Your activity_main.xml(or any layout that hosts recyclerview) should look like this.
<androidx.appcompat.widget.LinearLayoutCompat 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"
>
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginStart="5dp"
android:layout_marginTop="10dp"
android:layout_marginEnd="5dp"
app:cardCornerRadius="5dp"
app:cardElevation="8dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_gravity="center"
android:gravity="center_vertical|center"
android:orientation="horizontal">
<TextView
android:id="#+id/textAmount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:padding="4dp"
android:text="Amount"
android:textSize="30sp" />
<TextView
android:id="#+id/textIdPerson"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:padding="4dp"
android:text="UserID"
android:textSize="30sp" />
<TextView
android:id="#+id/textId"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:padding="4dp"
android:text="Id"
android:textSize="30sp" />
</LinearLayout>
</androidx.cardview.widget.CardView>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_gravity="center"
android:layout_marginBottom="8dp"
android:layout_weight="2"
android:nestedScrollingEnabled="false"
tools:listitem="#layout/list_item" />
<androidx.appcompat.widget.LinearLayoutCompat
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="#+id/btnAtras"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="5dp"
android:layout_marginEnd="5dp"
android:layout_marginBottom="5dp"
android:layout_weight="1"
android:text="ATRAS"
/>
<Button
android:id="#+id/btnSignature"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="5dp"
android:layout_marginEnd="5dp"
android:layout_marginBottom="5dp"
android:layout_weight="1"
android:text="Signature" />
</androidx.appcompat.widget.LinearLayoutCompat>
</androidx.appcompat.widget.LinearLayoutCompat>
And list_item.xml layout should be something like below:
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginTop="5dp"
android:layout_marginBottom="5dp"
xmlns:app="http://schemas.android.com/apk/res-auto">
<androidx.cardview.widget.CardView
android:layout_width="0dp"
android:layout_height="60dp"
app:cardCornerRadius="5dp"
app:cardElevation="8dp"
android:layout_marginStart="5dp"
android:layout_marginEnd="5dp"
android:layout_marginTop="5dp"
android:layout_marginBottom="5dp"
app:cardUseCompatPadding="false"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:layout_gravity="center"
android:gravity="center|center_vertical"
>
<TextView
android:gravity="center"
android:id="#+id/textAmount"
android:layout_height="match_parent"
android:layout_weight="1"
android:layout_width="match_parent"
android:padding="8dp"
android:text="Amount"
android:textSize="30sp" />
<TextView
android:gravity="center"
android:id="#+id/textIdPerson"
android:layout_height="match_parent"
android:layout_weight="1"
android:layout_width="match_parent"
android:padding="8dp"
android:text="UserId"
android:textSize="30sp" />
<TextView
android:gravity="center"
android:id="#+id/textId"
android:layout_height="match_parent"
android:layout_weight="1"
android:layout_width="match_parent"
android:padding="8dp"
android:text="Id"
android:textSize="30sp" />
</LinearLayout>
</androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>

Check your adapter class, Layout you designed for adapter class should have width match parent and three different textviews with equal width to hold values.

Make sure the RecyclerView has layout_width also set to match_parent.

how to center crop a background image of linear layout?

Hi i had to make a layout with card with recyclerview so for that i set an image as a background to linear layout but now i'm unable to center crop that image
My problem is that i cannot use imageview because using that the height of card increases as well and i don't want that so please if someone can assit me..
my xml
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/primary_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="19dp"
android:layout_marginRight="19dp"
android:layout_marginTop="15dp"
app:cardCornerRadius="115dp">
<ImageView
android:id="#+id/background_image_layout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:visibility="gone" />
<LinearLayout
android:id="#+id/background_image"
android:layout_width="match_parent"
android:layout_height="210dp"
android:background="#drawable/club1"
android:orientation="vertical"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/profile_image"
android:layout_width="56dp"
android:layout_height="56dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="20dp"
android:src="#drawable/ellipse" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dp">
<com.ct.listrtrial.Custom.CustomTextViewMedium
android:id="#+id/first_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="18dp"
android:padding="5dp"
android:text="John Doe"
android:textColor="#color/White"
android:textSize="15sp" />
<com.ct.listrtrial.Custom.CustomTextViewMedium
android:id="#+id/second_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="18dp"
android:padding="5dp"
android:text="checked in to"
android:textColor="#color/White"
android:textSize="10sp" />
<com.ct.listrtrial.Custom.CustomTextViewMedium
android:id="#+id/third_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="18dp"
android:padding="5dp"
android:text="W south"
android:textColor="#color/White"
android:textSize="15sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:orientation="horizontal">
<com.ct.listrtrial.Custom.CustomTextViewMedium
android:id="#+id/fourth_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="9dp"
android:text="beach mumbai"
android:textColor="#color/White"
android:textSize="15sp" />
<com.ct.listrtrial.Custom.CustomTextViewMedium
android:id="#+id/fifth_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/second_text"
android:layout_toRightOf="#+id/fourth_text"
android:text="30 mins ago."
android:textColor="#color/White"
android:textSize="10sp" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="85dp">
<com.ct.listrtrial.Custom.CustomTextViewMedium
android:id="#+id/sixth_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerInParent="true"
android:padding="10dp"
android:text="reply to abc............"
android:textColor="#color/White" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerInParent="true">
<ImageView
android:id="#+id/favourite_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:adjustViewBounds="true"
android:scaleType="fitXY"
android:src="#drawable/ic_favorite_border_black_24dp" />
<com.ct.listrtrial.Custom.CustomTextViewMedium
android:id="#+id/seventh_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="15dp"
android:text="40 likes"
android:textColor="#color/White" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
</android.support.v7.widget.CardView>

You can't center crop a background image of linear layout,
But you can achieve the same using these changes:
Replace you LinearLayout with RelativeLayout
Place a ImageView as a first child inside relative layout and use property for center crop.
<RelativeLayout
android:id="#+id/background_image"
android:layout_width="match_parent"
android:layout_height="210dp"
android:orientation="vertical">
<ImageView
android:scaleType="centerCrop"
android:src="#drawable/club1"
android:layout_width="match_parent"
android:layout_height="match_parent" />
.....
......
</RelativeLayout>

If you Want to control The Image View Scale
you need to put it in ImageView As Src Not Background
You can use Frame layout To Achieve it
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/primary_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="19dp"
android:layout_marginRight="19dp"
android:layout_marginTop="15dp"
app:cardCornerRadius="115dp">
<ImageView
android:id="#+id/background_image_layout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:visibility="gone" />
<FrameLayout
android:layout_width="match_parent"
android:layout_height="210dp">
<ImageView
android:layout_width="match_parent"
android:src="#mipmap/ic_launcher"
android:layout_height="match_parent" />
<LinearLayout
android:id="#+id/background_image"
android:layout_width="match_parent"
android:layout_height="210dp"
android:orientation="vertical"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="#+id/profile_image"
android:layout_width="56dp"
android:layout_height="56dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="20dp"
android:src="#drawable/playstore_icon" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dp">
<TextView
android:id="#+id/first_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="18dp"
android:padding="5dp"
android:text="John Doe"
android:textSize="15sp" />
<TextView
android:id="#+id/second_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="18dp"
android:padding="5dp"
android:text="checked in to"
android:textSize="10sp" />
<TextView
android:id="#+id/third_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="18dp"
android:padding="5dp"
android:text="W south"
android:textSize="15sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:orientation="horizontal">
<TextView
android:id="#+id/fourth_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="9dp"
android:text="beach mumbai"
android:textSize="15sp" />
<TextView
android:id="#+id/fifth_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/second_text"
android:layout_toRightOf="#+id/fourth_text"
android:text="30 mins ago."
android:textSize="10sp" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="85dp">
<TextView
android:id="#+id/sixth_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerInParent="true"
android:padding="10dp"
android:text="reply to abc............"
android:textColor="#color/white" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerInParent="true">
<ImageView
android:id="#+id/favourite_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:adjustViewBounds="true"
android:scaleType="fitXY"
android:src="#drawable/ic_close" />
<TextView
android:id="#+id/seventh_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="15dp"
android:text="40 likes"
android:textColor="#color/white" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
</FrameLayout>
</android.support.v7.widget.CardView>

CenterCrop logic is baked inside ImageView. The correct solution is to extract it into a Drawable which wraps another Drawable and centerCrops it.

If you use CoordinatorLayout, then just to put your ImageView with centerCrop parameter to top.
<CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:scaleType="centerCrop"
android:background="#drawable/background_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:elevation="0dp">
<include layout="#layout/header_main" />
<TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabIndicatorColor="#android:color/white"
android:background="#drawable/white_border_background"
app:tabIndicatorHeight="3dp"/>
</AppBarLayout>
<ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</CoordinatorLayout>

center content in a simple legend layout

I build a layout that overflows the google maps and it look like that: image
so the problem that i get with the layout on the bottom is that i can't center all the conter it stays too much on the left side and i don't know really why.
I want to center the content but mantain the space with each elemnt(i consider the element the background color + the text).
How can i do it?
here is my xml(that contains the map and the layout):
<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="match_parent">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.afcosta.inesctec.pt.android.MapsActivity" />
<LinearLayout
android:id="#+id/newmarker"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#FFFFFFFF"
android:gravity="center_horizontal"
android:orientation="vertical">
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:paddingBottom="10dp"
android:layout_weight="1"
android:text="Legenda"
android:textAppearance="?android:attr/textAppearanceMedium" />
<LinearLayout
android:id="#+id/rand"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#FFFFFFFF"
android:gravity="center"
android:weightSum="3"
android:orientation="horizontal">
<LinearLayout
android:id="#+id/myPos"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="10dp"
android:layout_weight="1"
android:background="#FFFFFFFF"
android:orientation="horizontal">
<Button
android:id="#+id/newmarker_save1"
android:layout_width="20dp"
android:layout_height="20dp"
android:background="#color/red" />
<TextView
android:id="#+id/textView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:paddingLeft="5dp"
android:text="Utilizador" />
</LinearLayout>
<LinearLayout
android:id="#+id/allFotos"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:layout_marginTop="10dp"
android:layout_weight="1"
android:background="#FFFFFFFF"
android:orientation="horizontal">
<Button
android:id="#+id/newmarker_save2"
android:layout_width="20dp"
android:layout_height="20dp"
android:background="#color/emerald" />
<TextView
android:id="#+id/Fotos"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:paddingLeft="5dp"
android:text="Fotos" />
</LinearLayout>
<LinearLayout
android:id="#+id/Photo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:layout_marginTop="10dp"
android:background="#FFFFFFFF"
android:gravity="center_horizontal"
android:layout_weight="1"
android:orientation="horizontal">
<Button
android:id="#+id/button2"
android:layout_width="20dp"
android:layout_height="20dp"
android:background="#color/yellow" />
<TextView
android:id="#+id/textView9"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingLeft="5dp"
android:layout_weight="1"
android:text="Planta" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</FrameLayout>
thanks!

You have to wrap_content your Button and you TextView, remove android:layout_weight="1" from the textView that lives beside your Button, then finally make sure that every single LinearLayout that wraps your Button and TextView are flagged as android:gravity="center" (this gravity is gonna be applied for its childs)
Also I strongly advise you replacing these linear layouts for Relatives to reduce your UI hierarchy
Try this.
<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="match_parent">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.afcosta.inesctec.pt.android.MapsActivity" />
<LinearLayout
android:id="#+id/newmarker"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#FFFFFFFF"
android:gravity="center_horizontal"
android:orientation="vertical">
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:paddingBottom="10dp"
android:layout_weight="1"
android:text="Legenda"
android:textAppearance="?android:attr/textAppearanceMedium" />
<LinearLayout
android:id="#+id/rand"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#FFFFFFFF"
android:gravity="center"
android:weightSum="3"
android:orientation="horizontal">
<LinearLayout
android:id="#+id/myPos"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="10dp"
android:gravity="center_horizontal"
android:layout_weight="1"
android:background="#FFFFFFFF"
android:orientation="horizontal">
<Button
android:id="#+id/newmarker_save1"
android:layout_width="20dp"
android:layout_height="20dp"
android:background="#color/colorAccent" />
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="5dp"
android:text="Utilizador" />
</LinearLayout>
<LinearLayout
android:id="#+id/allFotos"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:gravity="center_horizontal"
android:layout_marginTop="10dp"
android:layout_weight="1"
android:background="#FFFFFFFF"
android:orientation="horizontal">
<Button
android:id="#+id/newmarker_save2"
android:layout_width="20dp"
android:layout_height="20dp"
android:background="#color/colorAccent" />
<TextView
android:id="#+id/Fotos"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="5dp"
android:text="Fotos" />
</LinearLayout>
<LinearLayout
android:id="#+id/Photo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:layout_marginTop="10dp"
android:background="#FFFFFFFF"
android:gravity="center_horizontal"
android:layout_weight="1"
android:orientation="horizontal">
<Button
android:id="#+id/button2"
android:layout_width="20dp"
android:layout_height="20dp"
android:background="#color/colorAccent" />
<TextView
android:id="#+id/textView9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="5dp"
android:text="Planta" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
I presume that's what you want, right?

Adding textviews under buttons

I've made a lay-out with 10 buttons. In those buttons i have icons, showing what the information inside is about. Under those buttons, I want to have a word to clearify that again.
I have no idea how to add textviews and place them exactly under those buttons. I have tried it from the lay-out, by just pressing Textview and put it under the buttons, but that way my entire lay-out goes downwards, and the position is not right under it, but slightly left of it.
Hope someone can help me, every kind of help is appreciated.
This is my layout, the red circles are where I want the text to be.
Click here to see the image
This is my code:
<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"
tools:context="com.example.rodekruis.MainActivity"
android:background="#drawable/rkzafbeelding">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.rodekruis.MainActivity">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/imageButton1"
android:layout_width="40dp"
android:layout_height="50dp"
android:layout_marginBottom="20dp"
android:layout_marginRight="40dp"
android:layout_marginTop="10dp"
android:layout_gravity="right"
android:src="#drawable/informatiebutton" />
<ImageView
android:layout_marginBottom="50dp"
android:layout_width="150dp"
android:layout_height="100dp"
android:layout_marginLeft="1dp"
android:layout_marginTop="1dp"
android:scaleType="fitStart"
android:src="#drawable/logoversiejuni" />
</FrameLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginBottom="20dp"
android:layout_marginTop="0dp"
android:orientation="horizontal">
<ImageButton
android:id="#+id/button10"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button10"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/afspraakbutton"
android:text=" Afspraak maken" />
<ImageButton
android:id="#+id/button8"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/bezoektijdenbutton"
android:text=" Bezoek tijden" />
<ImageButton
android:id="#+id/button9"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/contactbutton"
android:text=" Contact" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginTop="10dp"
android:layout_marginBottom="20dp"
android:orientation="horizontal">
<ImageButton
android:id="#+id/button3"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/routebutton"
android:text="Route" />
<ImageButton
android:id="#+id/button4"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/meningbutton"
android:text="Uw mening" />
<ImageButton
android:id="#+id/button1"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/vriendenbutton"
android:text="Word vriend" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginTop="10dp"
android:orientation="horizontal">
<ImageButton
android:id="#+id/button5"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/foldersbutton"
android:text="Folders" />
<ImageButton
android:id="#+id/button6"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/specialistenbutton"
android:text="Specialisten" />
<ImageButton
android:id="#+id/button7"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/bwcbutton"
android:text="Brandwond encentrum" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginTop="30dp"
android:orientation="horizontal">
<ImageButton
android:id="#+id/button2"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/nieuwsbutton"
android:text="Nieuws en Agenda" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginTop="30dp"
android:layout_marginBottom="40dp"
android:orientation="horizontal">
<ImageButton
android:id="#+id/button11"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/afspraakbutton"
android:text="Facebook" />
<ImageButton
android:id="#+id/button12"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/afspraakbutton"
android:text="Youtube" />
<ImageButton
android:id="#+id/button13"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/afspraakbutton"
android:text="Twitter" />
<ImageButton
android:id="#+id/button14"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_alignTop="#+id/button8"
android:layout_marginRight="5dp"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter"
android:src="#drawable/afspraakbutton"
android:text="LinkedIn" />
</LinearLayout>
</LinearLayout>
</LinearLayout>

You can try just using TextViews in your layout and add the icons to them as compound drawables using:
textView.setCompoundDrawables(null, yourIconDrawable, null, null);
This will put your drawable to the top of the text. To set the size of the drawable call setBounds(...) on it or use setCompoundDrawablesWithIntrinsicBounds(...) on the TextView. You can also set the padding with setCompoundDrawablePadding(int padding).

Can you try this code and check if it works?
<TextView
android:id="#+id/TextView"
android:layout_width="50dp"
android:layout_height="30dp" --> you can change the size that you want
android:layout_below="#+id/imageButton1" --> you can change the size that you want
android:textAlignment="center" />

Try this but this the not The right way to create this type of view the best way to create Using GridView
<LinearLayout
android:weightSum="3"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="113dp">
<LinearLayout
android:layout_weight="1"
android:orientation="vertical"
android:layout_width="100dp"
android:layout_height="100dp">
<ImageButton
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_gravity="center_horizontal"
android:src="#mipmap/ic_launcher"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Title "/>
</LinearLayout>
<LinearLayout
android:layout_weight="1"
android:orientation="vertical"
android:layout_width="100dp"
android:layout_height="100dp">
<ImageButton
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_gravity="center_horizontal"
android:src="#mipmap/ic_launcher"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Title "/>
</LinearLayout>
<LinearLayout
android:layout_weight="1"
android:orientation="vertical"
android:layout_width="100dp"
android:layout_height="100dp">
<ImageButton
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_gravity="center_horizontal"
android:src="#mipmap/ic_launcher"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Title "/>
</LinearLayout>
</LinearLayout>

There are a lot of ways to achieve that, one of the most common ways is to use FrameLayout, and another common way is by using RelativeLayout which will give you the ability to predefine the views positions according to eachother(i.e which one is above the other), and following is a good example about how to use RelativeLayout to achieve your purpose:
<RelativeLayout
android:id="#+id/RelativeLayout1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<!-- Add Button 1 -->
<Button
android:id="#+id/button1"
android:layout_width="200dp"
android:layout_height="200dp"
android:layout_alignParentTop="true"
android:src="#drawable/image1" />
<!-- Add Text 1 -->
<TextView
android:id="#+id/text1"
android:layout_width="100dp"
android:layout_height="50dp"
android:layout_below="#id/button1"
android:text="text1" />
</RelativeLayout>

Android studio , how to align multiple text view and edit texts in linear layout(horizontal)

I'm a beginner in android development, my project requires me to build a simple UI app using two fragments (home and field). The home will show the starup page with 5 buttons. when we click on these buttons, it will then call field fragment and show fields like:
conductivity:----,height:----
and etc to fill up, like inserting manual data.
my issue here is , the project requires me to use linearlayout in horizontal alignment for the field frag, when i do that and add edit text and text views, its lined in same line as horizontal, but what i need is it to appear one and the other below it: SOme thing like
conductivity(text view): ___________(editText)
[another line]
height(text view):________(editText)
and so on. SOrry this might be a simple issue but i have been stuck on this for 2 days now. Help me
my code for field fragment.xml is as follows:
<?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">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/hp1_textView"
android:id="#+id/hp1_textView"
android:textSize="32sp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<LinearLayout android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/hp1_textView"
android:layout_centerHorizontal="true"
android:id="#+id/linearLayout">
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="#string/conductivity"
android:id="#+id/textView"/>
<EditText android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="#+id/editText"
android:layout_weight="1"
android:hint="#string/conductivity_field" />
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="pH:"
android:id="#+id/textView2" />
<EditText android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/editText2"
android:layout_weight="1"
android:hint="0.-14" />
</LinearLayout>
</RelativeLayout>
THis is how i want it to display

Use this xml in your code as it is
<?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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dp"
android:weightSum="2">
<TextView
android:id="#+id/textView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Conductivity (uS): "
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="745.2" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dp"
android:weightSum="2">
<TextView
android:id="#+id/textView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="pH: "
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="#+id/editText2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="7.1" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dp"
android:weightSum="2">
<TextView
android:id="#+id/textView3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Moisture(%): "
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="#+id/editText3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="0-100" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dp"
android:weightSum="2">
<TextView
android:id="#+id/textVie4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:singleLine="true"
android:text="Dissolved oxygen(ppm): "
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="#+id/editText4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="0-100" />
</LinearLayout>
<Button
android:id="#+id/btn1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:padding="5dp"
android:text="Save Log Entry" />
<Button
android:id="#+id/btn2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:padding="5dp"
android:text="Show Log Entry" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="horizontal"
android:padding="5dp"
android:weightSum="3">
<Button
android:id="#+id/btn3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:layout_weight="1"
android:padding="5dp"
android:text="Previouse" />
<Button
android:id="#+id/btn4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:layout_weight="1"
android:padding="5dp"
android:text="Next" />
<Button
android:id="#+id/btn5"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:layout_weight="1"
android:padding="5dp"
android:text="Home" />
</LinearLayout>
</RelativeLayout>
I hope its solve your problem.....

Try below with android:weightSum and LinearLayout with android:orientation
<?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="vertical">
<TextView
android:id="#+id/hp1_textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="hp1"
android:textSize="32sp" />
<LinearLayout
android:id="#+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="12">
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="2"
android:orientation="horizontal"
android:weightSum="2">
<TextView
android:id="#+id/textView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:gravity="center"
android:text="conductivity"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="#+id/editText"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:hint="conductivity_field" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="2"
android:orientation="horizontal">
<TextView
android:id="#+id/textView2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:gravity="center"
android:text="pH:"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="#+id/editText2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:hint="0.-14" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="2"
android:orientation="horizontal">
<TextView
android:id="#+id/textView3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:gravity="center"
android:text="Moisture(%):"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="#+id/editText3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:hint="0-100" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="2"
android:orientation="horizontal"
android:weightSum="2">
<TextView
android:id="#+id/textView4"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:gravity="center"
android:text="Disolved Oxygen(ppm)"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="#+id/editText4"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:hint="0-100" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout6"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_weight="2"
android:orientation="vertical"
android:weightSum="2">
<Button
android:id="#+id/Button11"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_gravity="bottom"
android:layout_weight="1"
android:gravity="center"
android:text="Save log entry"
android:textAppearance="?android:attr/textAppearanceMedium" />
<Button
android:id="#+id/Button12"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_gravity="bottom"
android:layout_weight="1"
android:gravity="center"
android:hint="Show log entries"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout5"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_weight="2"
android:orientation="horizontal"
android:weightSum="3">
<Button
android:id="#+id/Button1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_weight="1"
android:gravity="center"
android:text="conductivity"
android:textAppearance="?android:attr/textAppearanceMedium" />
<Button
android:id="#+id/Button2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_weight="1"
android:hint="conductivity_field" />
<Button
android:id="#+id/Button3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_weight="1"
android:hint="conductivity_field" />
</LinearLayout>
</LinearLayout>
</LinearLayout>

If my understanding of your scenario is correct, to display them one below the other as in the image you have supplied, the orientation of the linearLayout must be set to vertical. If you use orientation horizontal the drawing of widgets will falls to the next line, only after it has drawn widgets completely all the way up to the width of your phone( and then it jumped to the next line) .So the LinearLayout should be changed to vertical orientation
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/hp1_textView"
android:layout_centerHorizontal="true"
android:id="#+id/linearLayout">