center content in a simple legend layout

center content in a simple legend layout - java

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?

Related

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.

Toolbar back arrow with icon

How to display icon with back arrow in android toolbar like WhatsApp ?
I would like to reduce the space between the photo and the back arrow.
How can I reduce space?
I have:
ChatActivity.java: the layout (which has only one view) is replaced with ChatFragment.java. Moreover, the toolbar is replaced here with fragment_chat_toolbar.xml
ChatFragment.java: here the inputs, the emojis, the files etc. are managed
Thanks.
My toolbar chat
fragment_chat.xml
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/layout_chat"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<android.support.v7.widget.RecyclerView
android:id="#+id/fragment_chat_recycler_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_weight="1"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginBottom="4dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="4dp"
android:gravity="center" >
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="horizontal"
android:layout_marginEnd="4dp"
android:background="#drawable/incoming_message"
android:baselineAligned="false">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingBottom="2dp"
android:paddingStart="2dp"
android:paddingEnd="4dp" >
<ImageView
android:id="#+id/image_view_emoji"
android:layout_width="28dp"
android:layout_height="28dp"
android:layout_marginStart="6dp"
android:layout_gravity="center"
android:contentDescription="#string/emoji_button"
android:src="#mipmap/ic_emoji"
android:tint="#color/total_black" />
<com.vanniktech.emoji.EmojiEditText
android:id="#+id/message_box_emoji"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_margin="8dp"
android:layout_weight="1"
android:background="#color/incomingColor"
android:hint="#string/send_message"
app:emojiSize="26sp"/>
<ImageView
android:id="#+id/image_view_camera"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="6dp"
android:layout_gravity="center"
android:contentDescription="#string/camera_button"
android:src="#mipmap/ic_camera"
android:tint="#color/total_black" />
</LinearLayout>
</LinearLayout>
<android.support.design.widget.FloatingActionButton
android:id="#+id/float_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end|bottom"
android:src="#mipmap/ic_voice_recorder"
android:tint="#color/white"
app:backgroundTint="#color/colorPrimary"
app:elevation="0dp"
app:fabSize="mini"/>
</LinearLayout>
</LinearLayout>
fragment_chat_toolbar.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:fresco="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_alignParentStart="true"
android:layout_centerVertical="true"
android:clipChildren="false" >
<com.facebook.drawee.view.SimpleDraweeView
android:id="#+id/profile_photo"
android:layout_width="50dp"
android:layout_height="50dp"
fresco:failureImage="#drawable/default_profile"
fresco:placeholderImage="#drawable/default_profile"
fresco:roundAsCircle="true" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginStart="4dp"
android:gravity="start"
android:orientation="vertical" >
<TextView
android:id="#+id/chat_title_text_view"
android:layout_width="wrap_content"
android:textSize="16sp"
android:layout_height="wrap_content"
android:maxLines="1"
android:textColor="#color/white" />
<TextView
android:id="#+id/chat_subtitle_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxLines="1"
android:textColor="#color/white" />
</LinearLayout>

Make Custom Toolbar as you like. Change your layout in RelativeLayout
<android.support.v7.widget.Toolbar
android:id="#+id/toolBar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:contentInsetEnd="0dp"
app:contentInsetLeft="0dp"
app:contentInsetRight="0dp"
app:contentInsetStart="0dp"
app:popupTheme="#style/AppTheme.PopupOverlay">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/llLeft"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:background="#drawable/transparent_layout_background"
android:clickable="true"
android:focusable="true"
android:gravity="center"
android:padding="10dp">
<ImageView
android:id="#+id/ivLeft"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="#drawable/ic_action_menu" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_toEndOf="#+id/llLeft"
android:layout_toLeftOf="#+id/llRight"
android:layout_toRightOf="#+id/llLeft"
android:layout_toStartOf="#+id/llRight"
android:gravity="center">
<TextView
android:id="#+id/tvTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ellipsize="end"
android:fontFamily="#font/roboto_bold"
android:lines="1"
android:text="asdf"
android:textColor="#color/colorWhite"
android:textSize="18sp" />
</LinearLayout>
<LinearLayout
android:id="#+id/llRight"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:background="#drawable/transparent_layout_background"
android:clickable="true"
android:focusable="true"
android:gravity="center"
android:padding="10dp">
<ImageView
android:id="#+id/ivRight"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="#drawable/ic_action_search" />
</LinearLayout>
</RelativeLayout>
</android.support.v7.widget.Toolbar>

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>

how to center invisible Button

i'm trying to make (try again) button in center this button is invisible , i already tried to put : android:layout_gravity="center"
but doesn't work any suggestions for resolve this problems
This what he give me :
My XML file :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:background="#ffff"
android:id="#+id/activity_viewsol">
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/linear"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar_top"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:minHeight="?attr/actionBarSize"
android:background="#color/colorPrimary"
app:theme="#style/ThemeOverlay.AppCompat.Light"
android:fitsSystemWindows="true"
app:layout_collapseMode="pin"
android:elevation="5dp"
app:navigationIcon="#drawable/ic_back"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:textColor="#ffffff"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textSize="48sp"
android:textStyle="bold"
android:text="Solution"
android:id="#+id/toolbar_title" />
</android.support.v7.widget.Toolbar>
</RelativeLayout>
<ScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:id="#+id/scrollview"
android:stackFromBottom="true"
android:scrollbarSize="10dp"
android:scrollbarThumbVertical="#drawable/scrollbar"
android:transcriptMode="alwaysScroll">
<LinearLayout
android:id="#+id/All_Layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_margin="6dp"
android:padding="15dp">
<TextView
android:typeface="normal"
android:layout_gravity="center"
android:id="#+id/prob"
android:textStyle="bold"
android:textColor="#383838"
android:gravity="center"
android:textSize="45sp"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_marginBottom="8dp"
android:layout_weight="1" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:layout_marginBottom="20dp">
<View
android:layout_height="1dp"
android:layout_width="500dp"
android:background="#000"
android:layout_gravity="center"/>
<TextView
android:layout_marginStart="10dp"
android:layout_marginEnd="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="O"
android:textSize="40sp"
android:textColor="#color/colorAccent"
android:textStyle="bold"
android:layout_gravity="center"/>
<View
android:layout_height="1dp"
android:layout_width="500dp"
android:background="#000"
android:layout_gravity="center" />
</LinearLayout>
<TextView
android:layout_gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="35sp"
android:textStyle="normal"
android:textColor="#383838"
android:id="#+id/sol"
android:typeface="normal"
android:layout_marginBottom="20dp"/>
<View
android:id="#+id/LineHorizontalTwo"
android:layout_height="1dp"
android:layout_width="1000dp"
android:background="#000"
android:layout_gravity="center"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal">
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#null"
android:layout_margin="20dp"
android:layout_gravity="start|center"
android:id="#+id/Like"
android:src="#mipmap/ic_like"
/>
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#null"
android:layout_margin="20dp"
android:layout_gravity="end|center"
android:id="#+id/sharesol"
android:src="#mipmap/ic_action_share"/>
</LinearLayout>
</LinearLayout>
</ScrollView>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableTop="#mipmap/retry"
android:drawablePadding="10dp"
android:layout_gravity="center"
android:gravity="center"
android:visibility="gone"
android:id="#+id/retry"
android:onClick="onClickRetry"
android:background="#null"
android:padding="6dp"
android:textSize="35sp"
android:text="TRY AGAIN"
android:textColor="#000" />
</LinearLayout>

You can do it simply doing by enclosing your error button inside the Relative Layout as following steps:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center">
<Button
android:id="#+id/retry"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#null"
android:drawablePadding="10dp"
android:drawableTop="#drawable/ic_android"
android:gravity="center"
android:padding="6dp"
android:text="TRY AGAIN"
android:textColor="#000"
android:textSize="35sp"
android:visibility="visible" />
</RelativeLayout>

<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"/>
also you need a RelativeLayout for parent of this tag

Make the parent layout as RelativeLayout and put everything inside RelativeLayout except the button.
use
<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">
<!--Put your other codes here-->
<!--everything can be within LinerarLayout-->
<Button
android:id="#+id/retry"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:background="#null"
android:drawablePadding="10dp"
android:drawableTop="#mipmap/retry"
android:onClick="onClickRetry"
android:padding="6dp"
android:text="TRY AGAIN"
android:textColor="#000"
android:textSize="35sp"
android:visibility="gone" />
</RelativeLayout>
as your button code

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">

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