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How to edit the width of listview/recycleview on android code

Im planning to create a nice listview design, I want to know how to edit divider width
I have no idea how to make this, I dont know the keyword to search this on google
My xml
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="#+id/linear1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="8dp"
android:background="#android:color/transparent"
android:orientation="vertical">
<TextView
android:id="#+id/textview1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="8dp"
android:text="Applications"
android:textSize="30sp"
android:textStyle="bold"
android:textColor="#000000"/>
<LinearLayout
android:id="#+id/linear2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ListView
android:id="#+id/listview1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="30dp"
android:background="#FFFFFF"
android:choiceMode="none"/>
</LinearLayout>
</LinearLayout>

How to design this Grid view xml page?

I want to design xml page this type. I tried many of the code. Every time new problems are come. I need bottom navigation bar is fixed. In grid view ,i want android:numColums=3, android:verticalSpacing and android:horizontalSpacing Same(Look like instagram profile view grid images ).
XMl Code:
<?xml version="1.0" encoding="utf-8"?>
<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"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".MainSettingClass">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="175dp"
android:background="#dadada"
android:gravity="center"
android:orientation="vertical">
<ImageView
android:id="#+id/profile_image"
android:layout_width="100dp"
android:layout_height="100dp"
android:src="#drawable/com_facebook_button_background"/>
<TextView
android:id="#+id/amsc_txt_fbusername"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="TextView"
android:layout_marginTop="2dp" />
</LinearLayout>
<GridView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/grid_test"
android:verticalSpacing="2dp"
android:horizontalSpacing="2dp"
android:background="#FFFFFF"
android:stretchMode="columnWidth"
android:columnWidth="85dp"
android:numColumns="3"/>
<android.support.design.widget.BottomNavigationView
android:id="#+id/bottom_gallery"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#ffffff"
app:menu="#menu/bottom_navigation_gallery"/>
</FrameLayout>

As per your design you need scrollview for 2 above components and your BottomNavigationView is fix (not movable).
In your code you are not using scrollview first and second i'm not sure why you're using framelayout!
Here's my code which is exactly as per your given design try this if any concern you can ask! :)
Here's my code:
<?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"
android:orientation="vertical">
<ScrollView
android:id="#+id/scroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/bottom_gallery">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="#+id/rel_titleHolder"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#dadada"
android:gravity="center"
android:orientation="vertical">
<ImageView
android:id="#+id/profile_image"
android:layout_width="100dp"
android:layout_height="100dp"
android:src="#mipmap/ic_launcher" />
<TextView
android:id="#+id/amsc_txt_fbusername"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:gravity="center"
android:text="TextView" />
</LinearLayout>
<GridView
android:id="#+id/grid_test"
android:layout_width="match_parent"
android:layout_height="400dp"
android:columnWidth="85dp"
android:horizontalSpacing="2dp"
android:numColumns="3"/>
</LinearLayout>
</ScrollView>
<android.support.design.widget.BottomNavigationView
android:id="#+id/bottom_gallery"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ffffff"
android:layout_alignParentBottom="true" />
</RelativeLayout>

XML layout 2 views in centre, one at top

I created linearlayout with two buttons in center (buttons 1 and 2), but I can't manage it to create the view 3 on top, which I need to make it fill whole width and adjust it's height by it (keep proportions). How do I create third view?
Image:
Code:
<?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:background="#drawable/bg"
android:layout_gravity="center_horizontal"
android:orientation="horizontal">
<LinearLayout
android:orientation="vertical"
android:layout_gravity="center_vertical"
android:layout_width="fill_parent" android:layout_height="wrap_content" >
<ImageButton
android:background="#drawable/btn_one"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_weight="1.0" />
<ImageButton
android:background="#drawable/btn_second"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_weight="1.0" />
</LinearLayout>

I would recommend you use relative layouts, they are the closest thing in android to an "absolute layout" replace the button tags with Image button tags
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true">
</RelativeLayout>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Button"
android:id="#+id/button2"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="215dp" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Button"
android:id="#+id/button3"
android:layout_below="#+id/button2"
android:layout_alignStart="#+id/button2" />
</RelativeLayout>

try this code set height and width what size of image button you need and simple look what you need.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1">
<ImageButton
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.2"
android:orientation="vertical"
android:gravity="center">
<ImageButton
android:layout_width="200dp"
android:layout_height="50dp"/>
<ImageButton
android:layout_width="200dp"
android:layout_height="50dp" />
</LinearLayout>

GridView title and date orientation

I want my title and date text views to appear at the bottom of the image instead of the top where they currently are. I want them to overlap the image like they are at the moment but then have the title then date underneath with the same background so they appear to be in the same "box"
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#55000000"
android:orientation="vertical"
>
<uk.ac.kent.sc580.edanews.GridViewItem
android:id="#+id/listImage"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop" />
<TextView
android:id="#+id/listTitle"
android:layout_width="match_parent"
android:layout_height="50dp"
android:textColor="#android:color/white"
android:background="#3183b9"
android:ellipsize="end"
android:maxLines="2" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:id="#+id/listDate"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#android:color/white" />
</LinearLayout>
</FrameLayout>

Use the RelativeLayout instead
<?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"
android:background="#55000000">
<uk.ac.kent.sc580.edanews.GridViewItem
android:id="#+id/listImage"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical
android:layout_alignParentBottom="true">
<TextView
android:id="#+id/listTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#android:color/white" />
<TextView
android:id="#+id/listDate"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#android:color/white" />
</LinearLayout>
</RelativeLayout>

Floating Action Button between two tabs

I have a fab and would like to have it during the passage between two tabs, tried to put the transparent background in fragment_main.xml but without success. The problem is really how do I put the background of the two fragments appearing while allowing this gray stripe cutting because of FAB. Very grateful to those who help me.
fragment_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:fab="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#0000"
android:orientation="vertical">
<br.com.test.common.view.SlidingTabLayout
android:id="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="0px"
android:layout_weight="1"
android:background="#0000"/>
<com.getbase.floatingactionbutton.FloatingActionButton
android:id="#+id/pink_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
fab:fab_icon="#drawable/ic_add"
fab:fab_colorNormal="#color/material_orange_500"
fab:fab_colorPressed="#color/material_orange_a200"
android:layout_alignParentBottom="true"
android:layout_gravity="bottom|right"
android:layout_marginBottom="16dp"/>
</LinearLayout>
fragment_profile.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:background="?android:attr/colorBackground"
android:layout_weight="1"
android:gravity="center_horizontal">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical">
<ImageView
android:id="#+id/profileImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:src="#drawable/ic_launcher"
android:padding="10dp"
android:scaleType="centerInside"/>
<TextView
android:id="#+id/profileName"
android:layout_below="#id/profileImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="teste"
android:textSize="22sp"/>
<LinearLayout
android:id="#+id/ll_1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/profileName"
android:padding="10dp">
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="#+id/card_view"
android:layout_gravity="center"
android:layout_width="fill_parent"
android:layout_height="150dp"
card_view:cardCornerRadius="4dp">
<TextView
android:id="#+id/info_text"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="teste"/>
</android.support.v7.widget.CardView>
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/ll_1"
android:padding="10dp">
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="#+id/card_view_2"
android:layout_gravity="center"
android:layout_width="fill_parent"
android:layout_height="150dp"
card_view:cardCornerRadius="4dp">
<TextView
android:id="#+id/info_text2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="teste"/>
</android.support.v7.widget.CardView>
</LinearLayout>
</RelativeLayout>
</LinearLayout>
fragment_service.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal">
<TableLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:gravity="center_vertical">
<TableRow>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/imgDP"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:src="#drawable/logo_dp"/>
<TextView
android:layout_below="#id/imgDP"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="DP"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="30dp">
<ImageView
android:id="#+id/imgNA1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:src="#drawable/logo_na"/>
<TextView
android:layout_below="#id/imgNA"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="NA"/>
</RelativeLayout>
</TableRow>
</TableLayout>
</LinearLayout>

Eihschnaehkeee is right -- you just need a layout that allows overlapping. Here is XML to try (also adding right margin for your button):
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:fab="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#0000">
<br.com.test.common.view.SlidingTabLayout
android:id="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true" />
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/sliding_tabs"
android:layout_alignParentBottom="true"
android:background="#0000"/>
<com.getbase.floatingactionbutton.FloatingActionButton
android:id="#+id/pink_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
fab:fab_icon="#drawable/ic_add"
fab:fab_colorNormal="#color/material_orange_500"
fab:fab_colorPressed="#color/material_orange_a200"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_marginBottom="16dp"
android:layout_marginRight="16dp"/>
</RelativeLayout >

Eihschnaehkeee and Bruce.
I tried to put as relative layout and swipe funcinou not more, I tried using SlidingTabLayout the android code https://github.com/googlesamples/android-SlidingTabsBasic/