Develop Reference

How to adjust weight sum for horizontal gap between relativelayout

I have one Framelayout inside that i have Linealayout whose weightSum 5.1 inside there we have 5 layout i want to adjust horizontal gap each based one some ratio (27:51:48:48:48:24) from left to right so that it should but its not fixing. how to fix it?
i tried with layout_weight 1,.9,.9,.8,1 but its not fixing
that ratio but UI its not fixing my horizontal gap ratio.
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/bb_bottom_bar_outer_container"
android:layout_width="match_parent"
android:layout_height="60dp"
android:background="#drawable/float_common"
android:clickable="true">
<LinearLayout
android:id="#+id/btn_updatenow"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/white"
android:orientation="horizontal"
android:weightSum="5.1">
<RelativeLayout
android:id="#+id/float_layout_home"
android:layout_width="#dimen/dp0"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="?attr/selectableItemBackground"
android:orientation="vertical"
android:paddingTop="2dp">
<ImageView
android:id="#+id/float_image_home"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="#dimen/margin_6"
android:background="#drawable/float_home__new_click" />
<TextView
android:id="#+id/float_text_home"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="#dimen/padding_7"
android:letterSpacing="-0.05"
android:text="#string/home"
android:textColor="#color/text_mid_grey" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/float_layout_collect"
android:layout_width="#dimen/dp0"
android:layout_height="match_parent"
android:layout_weight=".9"
android:background="?attr/selectableItemBackground"
android:orientation="vertical"
android:paddingTop="2dp">
<ImageView
android:id="#+id/float_image_collect"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="#dimen/margin_6"
android:background="#drawable/float_collect_new_click" />
<TextView
android:id="#+id/float_text_collect"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="#dimen/padding_7"
android:letterSpacing="-0.05"
android:text="#string/collect_tab_title"
android:textColor="#color/text_mid_grey" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/float_layout_offers"
android:layout_width="#dimen/dp0"
android:layout_height="match_parent"
android:layout_weight=".9"
android:background="?attr/selectableItemBackground"
android:gravity="center"
android:orientation="vertical"
android:paddingTop="2dp">
<ImageView
android:id="#+id/float_offers"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="#dimen/margin_6"
android:background="#drawable/float_offercoupons_new_click" />
<TextView
android:id="#+id/txt_badge"
style="#style/Typeface.Footnote.White"
android:layout_width="18dp"
android:layout_height="18dp"
android:layout_gravity="top|right"
android:layout_marginLeft="-5dp"
android:layout_marginTop="3dp"
android:layout_toRightOf="#+id/float_offers"
android:background="#drawable/badge_background"
android:gravity="center"
android:visibility="gone" />
<TextView
android:id="#+id/float_text_offers"
style="#style/Typeface.Small.TextMidGrey"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="#dimen/padding_7"
android:gravity="center"
android:letterSpacing="-0.05"
/>
</RelativeLayout>
<RelativeLayout
android:id="#+id/float_layout_voucher"
android:layout_width="#dimen/dp0"
android:layout_height="match_parent"
android:layout_weight=".8"
android:background="?attr/selectableItemBackground"
android:gravity="center"
android:orientation="vertical"
android:paddingTop="2dp"
android:visibility="visible">
<ImageView
android:id="#+id/float_voucher"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="#dimen/margin_6"
android:background="#drawable/float_myimage_new_click" />
<TextView
android:id="#+id/float_text_voucher"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="#dimen/padding_7"
android:letterSpacing="-0.05"
android:text="#string/vouchers"
android:textColor="#color/text_mid_grey" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/float_layout_boost"
android:layout_width="#dimen/dp0"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="?attr/selectableItemBackground"
android:gravity="center"
android:orientation="vertical"
android:paddingTop="2dp"
android:visibility="visible">
<ImageView
android:id="#+id/float_boost"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="#dimen/margin_6"
android:background="#drawable/float_image2_new_click" />
<TextView
android:id="#+id/float_text_boost"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="#dimen/padding_7"
android:letterSpacing="-0.05"
android:text="#string/boost"
android:textColor="#color/text_mid_grey" />
</RelativeLayout>
</LinearLayout>
</FrameLayout>
I want keep horizontal ratio so that my UI should like like below screen

You have a problem with your weight, but you will face another problem you say that your relative layout take a weight for width but inside you put wrap content on your element.
This is an exemple if your total width is 1000dp and you put a weight on an element inside your container, let's say the width of your element is 100dp with the calculated weight but your image take 120dp with wrap_content, did you see the problems ?
Let me show you this little solution I wrote
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="246">
<Space
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="27" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="text1" />
</LinearLayout>
<Space
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="51" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="text2" />
</LinearLayout>
<Space
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="48" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="text3" />
</LinearLayout>
<Space
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="48" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="text4" />
</LinearLayout>
<Space
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="48" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="text5" />
</LinearLayout>
<Space
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="24" />
</LinearLayout>
In this code the weight are only on the space between element exactly like your drawing every element between space can wrap his content

Two LinearLayouts side by side, one with minimum-width

I got a RelativeLayout and inside there are two LinearLayouts side by side. Now I want that the right one has a minimum width of 125dp. So when the left LinearLayout gets too big, it should stop before the other LinearLayout and not push that one away.
How can I achieve this? This is my current approach:
Layout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/item_list_item"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="5dp">
<ImageButton
android:id="#+id/basket_item_list_delete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:background="#android:color/transparent"
android:minWidth="50dp"
android:minHeight="50dp"
app:srcCompat="#drawable/ic_garbage"/>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_toRightOf="#+id/basket_item_list_delete"
android:layout_toEndOf="#+id/basket_item_list_delete">
<LinearLayout
android:id="#+id/basket_item_list_description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:orientation="vertical">
<TextView
android:id="#+id/basket_item_list_itemname"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:text="ItemName"
android:textColor="#color/generalText"
android:textSize="18sp" />
<TextView
android:id="#+id/basket_item_list_options"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:text="Options"/>
</LinearLayout>
<LinearLayout
android:id="#+id/priceLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minWidth="125dp"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:orientation="vertical"
android:layout_toRightOf="#id/basket_item_list_description">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<Button
android:id="#+id/basket_item_list_increment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toLeftOf="#+id/basket_item_list_count"
android:layout_toStartOf="#+id/basket_item_list_count"
android:minWidth="45dp"
android:minHeight="45dp"
android:text="+"
android:textSize="20sp"
android:textColor="#color/colorPrimary"
android:background="#android:color/transparent" />
<TextView
android:id="#+id/basket_item_list_count"
android:layout_width="35dp"
android:layout_height="wrap_content"
android:layout_alignParentEnd="false"
android:layout_alignParentRight="false"
android:layout_centerVertical="true"
android:layout_toLeftOf="#+id/basket_item_list_decrement"
android:layout_toStartOf="#+id/basket_item_list_decrement"
android:gravity="center_horizontal"
android:text="nx"
android:textColor="#color/generalText"
android:textSize="14sp" />
<Button
android:id="#+id/basket_item_list_decrement"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:minWidth="45dp"
android:minHeight="45dp"
android:text="–"
android:textSize="20sp"
android:textColor="#color/colorPrimary"
android:background="#android:color/transparent" />
</RelativeLayout>
<TextView
android:id="#+id/basket_item_list_price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minWidth="50dp"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginEnd="10dp"
android:layout_marginRight="10dp"
android:text="1€"
android:gravity="right"
android:layout_gravity="right"
android:textColor="#color/generalText"
android:textSize="14sp" />
</LinearLayout>
</RelativeLayout>
</RelativeLayout>
I want to have it like this:
But this is what happens, when the left LinearLayout gets too big:

Try this
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/item_list_item"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dp">
<ImageButton
android:id="#+id/basket_item_list_delete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_centerVertical="true"
android:background="#android:color/transparent"
android:minHeight="50dp"
android:minWidth="50dp"
app:srcCompat="#drawable/ic_menu_gallery" />
<LinearLayout
android:id="#+id/basket_item_list_description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical"
android:paddingBottom="10dp"
android:paddingTop="10dp">
<TextView
android:id="#+id/basket_item_list_itemname"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:text="ItemName"
android:textColor="#color/colorPrimary"
android:textSize="18sp" />
<TextView
android:id="#+id/basket_item_list_options"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:text="Options" />
</LinearLayout>
<LinearLayout
android:id="#+id/priceLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_gravity="right"
android:gravity="right"
android:minWidth="125dp"
android:orientation="vertical"
android:paddingBottom="10dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center">
<Button
android:id="#+id/basket_item_list_increment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:minHeight="45dp"
android:minWidth="45dp"
android:text="+"
android:textColor="#color/colorPrimary"
android:textSize="20sp" />
<TextView
android:id="#+id/basket_item_list_count"
android:layout_width="35dp"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="nx"
android:textColor="#color/colorPrimary"
android:textSize="14sp" />
<Button
android:id="#+id/basket_item_list_decrement"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:minHeight="45dp"
android:minWidth="45dp"
android:text="–"
android:textColor="#color/colorPrimary"
android:textSize="20sp" />
</LinearLayout>
<TextView
android:id="#+id/basket_item_list_price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:gravity="center"
android:minWidth="50dp"
android:text="1€"
android:textColor="#color/colorPrimary"
android:textSize="14sp" />
</LinearLayout>
</LinearLayout>

Let try this ,
It will divide a screen Half and Half.
<LinearLayout
android:id="#+id/priceLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<LinearLayout
android:id="#+id/priceLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight=".5"
android:orientation="vertical">
///Your views
</LinearLayout>
<LinearLayout
android:id="#+id/priceLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight=".5"
android:orientation="vertical">
///Your views
</LinearLayout>
</LinearLayout>
If You want first Wrap another one take remaining width take this
<LinearLayout
android:id="#+id/priceLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<LinearLayout
android:id="#+id/priceLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
///Your views
</LinearLayout>
<LinearLayout
android:id="#+id/priceLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="vertical">
///Your views
</LinearLayout>
</LinearLayout>

fixed width LinearLayout

I'm trying to get two linear layout side by side and put content inside of it.
I want the two linear layouts to be side by side, but the left one should take about 3/4 of the screen and the right one the rest of it.
This is my code: https://gitlab.com/snippets/1682040
But the two linear layouts always change the width and the height depending on the content.
How can I have two linear layouts side by side with fixed width and height?
A better solution with RelativeLayout is always welcome.
This is the result:

Use layout_weight property of LinearLayout and android:weightSum property for parent layout.
Do Something like this
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:padding="15dp"
android:weightSum="1">
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight=".75" // For First layout to 3/4
android:background="#color/colorPrimary"
android:gravity="left|center"
android:orientation="vertical">
//First Layout content Here
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight=".25" // For Second layout to rest of screen
android:background="#color/colorAccent"
android:gravity="center"
android:orientation="vertical">
//Second Layout Content Here
</LinearLayout>
</LinearLayout>

I know that you asked for a solution with the LinearLayout but I suggest you to solve this problem with the ConstraintLayout. You will get incredible performance improvements without nested view.
In this sample I added a vertical guideline at 75% of from the left of the screen. I have only to remove the nested LinearLayouts and add the constraints to your views!
Try it out!
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="0dp"
android:layout_height="628dp"
android:layout_marginBottom="8dp"
android:layout_marginTop="8dp"
android:background="#color/colorPrimary"
android:gravity="left|center"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/guideline4"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="#+id/repository_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="AAAAA"
android:textColor="#color/blue"
android:textSize="20dp" />
<TextView
android:id="#+id/repository_description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ellipsize="end"
android:maxLines="2"
android:text="AAAAA"
android:textColor="#color/gray"
android:textSize="15dp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_menu_camera" />
<TextView
android:id="#+id/repository_fork_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="123"
android:textColor="#color/orange"
android:textSize="20dp" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:src="#drawable/ic_menu_camera" />
<TextView
android:id="#+id/repository_star_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="123"
android:textColor="#color/orange"
android:textSize="20dp" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout3"
android:layout_width="0dp"
android:layout_height="628dp"
android:layout_marginBottom="8dp"
android:layout_marginTop="8dp"
android:background="#color/colorAccent"
android:gravity="center"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="#+id/guideline4"
app:layout_constraintTop_toTopOf="parent">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/user_image"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true" />
<TextView
android:id="#+id/username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="AAAAA"
android:textColor="#color/blue" />
<TextView
android:id="#+id/first_last_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Mock Name"
android:textColor="#color/lightGray" />
</LinearLayout>
<android.support.constraint.Guideline
android:id="#+id/guideline4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.75" />

Try this give Your first LinearLayout android:layout_weight=".75" so it can take 3/4 space in screen
than assign android:layout_weight="0.25" to Your second LinearLayout so it can take remaining space
<?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="horizontal"
android:padding="15dp"
android:weightSum="1">
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.75"
android:background="#color/colorPrimary"
android:orientation="vertical">
<TextView
android:id="#+id/repository_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="AAAAA"
android:textColor="#color/colorBlue"
android:textSize="20dp" />
<TextView
android:id="#+id/repository_description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ellipsize="end"
android:maxLines="2"
android:text="AAAAA"
android:textColor="#color/colorGreen"
android:textSize="15dp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_menu_camera" />
<TextView
android:id="#+id/repository_fork_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="123"
android:textColor="#color/colorPrimary"
android:textSize="20dp" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:src="#drawable/ic_menu_camera" />
<TextView
android:id="#+id/repository_star_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="123"
android:textColor="#color/colorPrimary"
android:textSize="20dp" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.25"
android:background="#color/colorAccent"
android:gravity="center"
android:orientation="vertical">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/user_image"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true" />
<TextView
android:id="#+id/username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="AAAAA"
android:textColor="#color/colorBlue" />
<TextView
android:id="#+id/first_last_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Mock Name"
android:textColor="#color/colorRed" />
</LinearLayout>
</LinearLayout>

Seems like both of the weights are set to "1". Have you tried ".5"?
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#color/colorPrimary"
android:layout_weight="0.50"
android:gravity="left|center">

Try this I have added weight
<?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="horizontal"
android:padding="15dp"
android:weightSum="1">
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight=".75"
android:background="#color/colorPrimary"
android:gravity="left|center"
android:orientation="vertical">
<TextView
android:id="#+id/repository_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="AAAAA"
android:textColor="#color/blue"
android:textSize="20dp" />
<TextView
android:id="#+id/repository_description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ellipsize="end"
android:maxLines="2"
android:text="AAAAA"
android:textColor="#color/gray"
android:textSize="15dp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_menu_camera" />
<TextView
android:id="#+id/repository_fork_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="123"
android:textColor="#color/orange"
android:textSize="20dp" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:src="#drawable/ic_menu_camera" />
<TextView
android:id="#+id/repository_star_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="123"
android:textColor="#color/orange"
android:textSize="20dp" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight=".25"
android:background="#color/colorAccent"
android:gravity="center"
android:orientation="vertical">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/user_image"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true" />
<TextView
android:id="#+id/username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="AAAAA"
android:textColor="#color/blue" />
<TextView
android:id="#+id/first_last_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Mock Name"
android:textColor="#color/lightGray" />
</LinearLayout>
</LinearLayout>

First remove weightSum attribute from parent layout.
If you want your first layout to be 3/4 of you should put weight 0.75 and 0.25 (1/4) for the other one like here:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="15dp">
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#color/colorPrimary"
android:layout_weight=".75"
android:layout_gravity="left"
android:gravity="left|center">
<TextView
android:id="#+id/repository_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="AAAAA"
android:textColor="#color/blue"
android:textSize="20dp"/>
<TextView
android:id="#+id/repository_description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxLines="2"
android:ellipsize="end"
android:text="AAAAA"
android:textColor="#color/gray"
android:textSize="15dp"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_menu_camera"/>
<TextView
android:id="#+id/repository_fork_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="123"
android:textColor="#color/orange"
android:textSize="20dp"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_menu_camera"
android:layout_marginLeft="15dp"/>
<TextView
android:id="#+id/repository_star_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="123"
android:textColor="#color/orange"
android:textSize="20dp"/>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#color/colorAccent"
android:layout_weight=".25"
android:gravity="center">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/user_image"
android:layout_width="40dp"
android:layout_height="40dp" />
<TextView
android:id="#+id/username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="AAAAA"
android:textColor="#color/blue"/>
<TextView
android:id="#+id/first_last_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Mock Name"
android:textColor="#color/lightGray"/>
</LinearLayout>

try this:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight=".75"
android:orientation="vertical"
android:visibility="visible">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:textColor="#000"
android:textSize="16dp" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/shape_txt"
android:gravity="center"
/>
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight=".25"
android:orientation="vertical"
android:visibility="visible">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:textColor="#000"
android:textSize="16dp" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/shape_txt"
android:gravity="center"
/>
</LinearLayout>
</LinearLayout>

Change the weight sum to 4 in the parent layout and add weight as 3 for child linear layout so it can take 3/4 space and 1 to child linear layout so that it will take the remaining space.
<?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="horizontal"
android:padding="15dp"
android:weightSum="4">
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="3"
android:background="#color/colorPrimary"
android:gravity="left|center"
android:orientation="vertical">
//Your contents
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#color/colorAccent"
android:gravity="center"
android:orientation="vertical">
//Your contents
</LinearLayout>
</LinearLayout>

Add RelativeLayout with buttons below RecyclerView

I need to add a RelativeLayout below my RecyclerView and was able to do so, except that the button under TOTAL(R.id.total_amount_tv) does not show:
I can easily scroll through the items and it doesn't affect my RelativeLayout. I just need the button to be visible.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/white"
android:weightSum="1">
<android.support.v7.widget.RecyclerView
android:id="#+id/order_recycler"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="40dp"
tools:context=".ShoppingCartActivity" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="10dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp">
<TextView
android:id="#+id/total_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:text="#string/total"
android:textSize="20sp"
android:textStyle="bold|italic" />
<TextView
android:id="#+id/total_amount_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_alignTop="#+id/total_tv"
android:textSize="20sp"
android:textStyle="bold|italic" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_below="#+id/total_amount_tv"
android:layout_marginTop="51dp"
android:background="#color/accent"
android:onClick="onClickSendOrder"
android:text="#string/order_btn"
android:textColor="#android:color/white"
android:textSize="20sp" />
</RelativeLayout>
</RelativeLayout>

You need to divide the screen in to two Parts one for showing the Recyclerview and other for RelativeLayout
<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:background="#android:color/white"
android:orientation="vertical"
android:weightSum="10">
<android.support.v7.widget.RecyclerView
android:id="#+id/order_recycler"
android:layout_weight = "8.5"
android:layout_width="match_parent"
tools:context=".ShoppingCartActivity" />
<RelativeLayout
android:layout_weight = "1.5"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginRight="10dp">
<TextView
android:id="#+id/total_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:text="Total"
android:textSize="20sp"
android:textStyle="bold|italic" />
<TextView
android:id="#+id/total_amount_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_alignTop="#+id/total_tv"
android:textSize="20sp"
android:text="Total Right"
android:textStyle="bold|italic" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/total_amount_tv"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:onClick="onClickSendOrder"
android:text="Button"
android:textColor="#android:color/white"
android:textSize="20sp" />
</RelativeLayout>
</LinearLayout>
This will produce the following results

android:layout_alignParentBottom="true"
This is the likely culprit. Both TextViews are aligned at the bottom of their parent RelativeLayout. This doesn't leave room for the Button.

<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="#+id/downline_listview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/lin_result"
android:layout_marginTop="5dp" />
<LinearLayout
android:id="#+id/lin_result"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#f8ffffff"
android:orientation="vertical"
android:paddingBottom="10dp">
<View
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:layout_marginBottom="5dp"
android:background="#999898" />
<TextView
android:id="#+id/text_total_rupees"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_weight="1"
android:paddingLeft="10dp"
android:text="100"
android:textAppearance="#style/TextAppearance.AppCompat.Medium" />
</LinearLayout>
</RelativeLayout>

Actionbar overlapping Scrollbar inside fragment

I have a scrollview as the root view of a fragment. It's child is a vertical linear layout with 4 elements. The first element is an image. The issue is that the image is getting cut and I can't seem to scroll upwards. This issue is only in landscape mode. Following is my xml:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content"
android:layout_width="match_parent">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:weightSum="4"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/logo_dark"
android:id="#+id/imageView2"
android:layout_gravity="center" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="10dp"
android:layout_gravity="center"
android:id="#+id/linearLayout3">
<LinearLayout
android:layout_marginTop="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/student"
android:layout_gravity="center" />
<AutoCompleteTextView
android:id="#+id/new_form_student"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="15"
android:textColor="#color/colorPrimary"
android:textColorHint="#fff"
android:padding="10dp" />
</LinearLayout>
<LinearLayout
android:layout_marginTop="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/person"
android:layout_gravity="center" />
<AutoCompleteTextView
android:id="#+id/new_form_person"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="15"
android:textColor="#color/colorPrimary"
android:textColorHint="#fff"
android:padding="10dp" />
</LinearLayout>
<LinearLayout
android:layout_marginTop="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/reason"
android:layout_gravity="center" />
<AutoCompleteTextView
android:id="#+id/new_form_reason"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="15"
android:textColor="#color/colorPrimary"
android:textColorHint="#fff"
android:padding="10dp" />
</LinearLayout>
<LinearLayout
android:layout_marginTop="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/check"
android:layout_gravity="center" />
<AutoCompleteTextView
android:id="#+id/new_form_check"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="15"
android:textColor="#color/colorPrimary"
android:textColorHint="#fff"
android:padding="10dp" />
</LinearLayout>
</LinearLayout>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:src="#drawable/submit"
android:id="#+id/new_form_submit"
android:padding="10dp"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:src="#drawable/cancel"
android:id="#+id/new_form_cancel"
android:padding="10dp"/>
</LinearLayout>
And this is the screenshot of the issue:
Thanks,

Found it here:
Remove layout_gravity attribute from the Linear Layout that is directly placed inside scrollView, in your case,
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content"
android:layout_width="match_parent">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
<!-- android:layout_gravity="center" -->
android:weightSum="4"
android:orientation="vertical">
instead of:
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:weightSum="4"
android:orientation="vertical">