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Fill whole screen scrollview android

I have a problem to fill the whole screen with a scrollview.
How do I make the scrollview cover the whole screen width and screenheight? I tried with fillviewport but that that works for the screenheight.
I am not sure if its the scrollview or its parent (FrameLayout) that is the problem?
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:fillViewport="true">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<ImageView
android:id="#+id/img1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="img1"/>
<TextView
android:id="#+id/text_img1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"
/>
<ImageView
android:id="#+id/img2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="img2"/>
<TextView
android:id="#+id/text_img2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"
/>
<ImageView
android:id="#+id/img3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="img3"/>
<TextView
android:id="#+id/text_img3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"
/>
</LinearLayout>
</ScrollView>

change your ScrollView and LinearLayout like this
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >

Change your <ScrollView> from wrap_content to match_parent.
Example:
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center">
Also, you should be using match_parent instead of fill_parent in API 8+.
EDIT:
After talking a bit in the comments, OP and I discovered that the FrameLayout's default background is transparent, which means you can see the old view underneath.
Using a LinearLayout or really anything instead of a FrameLayout will fix this problem.

Other answers are going in the right direction but your main problem is probably due to the fact that it's a Dialog.
First of all make sure your Dialog is borderless. You can use one of approaches proposed here (not to duplicate answers).

Android textview not fit for all the screen

i developed one of application and now am facing problem that it show perfectly in my nexus7 but when i viewing other device screens the text view not fitting
i want all the screen as same as nexus7. its anyone can know the better solution for this please. unfortunately i don't have enough reputation so i cant post any screenshot here this my xml 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:layout_gravity="center"
android:background="#color/white">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:paddingBottom="16dp"
android:paddingLeft="64dp"
android:paddingRight="64dp"
android:paddingTop="16dp" >
<ImageView
android:id="#+id/pointer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_centerInParent="true"
android:src="#drawable/point" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="bottom"
android:paddingBottom="16dp"
android:paddingLeft="64dp"
android:paddingRight="64dp"
android:paddingTop="16dp" >
<TextView
android:id="#+id/name2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="97dp"
android:text="#string/numberusers"
android:textColor="#color/no_users"
android:textSize="30sp"
android:textStyle="bold" />
<TextView
android:id="#+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="19dp"
android:text="#string/number"
android:textColor="#color/no_users"
android:textSize="30sp"
android:textStyle="bold" />
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:paddingBottom="16dp"
android:paddingLeft="64dp"
android:paddingRight="64dp"
android:paddingTop="355dp" >
<ListView
android:id="#android:id/list"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_gravity="center_horizontal"
android:clickable="false" >
</ListView>
</RelativeLayout>
</RelativeLayout>
</RelativeLayout>

I m Not Sure But Remove Relative Layout And Use Linear Layout Its More Better Than Relative

The two textViews that you have in your layout use android:layout_width="wrap_content".
Use android:layout_width="match_parent" in the one you want to fill the screen.

every children relative layout in your xml has height and width as match_parent. Do you need it? Because if first layout have height as match_arent than it will not leave space for others. Try using "wrap_content" as height for inner relative layouts.

If I got your question, you have to set the width of the textview as
android:layout_width="match_parent"
But in my opinion, the hole screen is wrong. Use a LinearLayout (vertical or horizontal) and place there your first two textviews. And if you want more accuracy use the gravity feature in each text view and of course set a layout_weight for each TextView and weightSum in the LinearLayout.

How to let the ImageView and the TextView the same height

My layout have ImageView(iv) and TextView(tv).
I want to let the tv right of iv.
And the tv's height is same as iv's.
The tv Gravity set as CENTER_VERTICAL.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/RelativeLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"/>
<TextView
android:id="#+id/tv"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toRightOf="#+id/iv"
android:text="TextView" android:gravity="center_vertical"/>
</RelativeLayout>
How to arrive the goal?

hi try this .....
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/RelativeLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:src="#drawable/ic_title_home_demo" />
<TextView
android:id="#+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/iv"
android:layout_alignTop="#+id/iv"
android:layout_toRightOf="#+id/iv"
android:gravity="center_vertical"
android:text="TextView" />
</RelativeLayout>

You have to set the textview property to android:layout_alignTop="#id/iv" and android:layout_alignBottom="#id/iv"

Well to get it to center vertically correct, you will need to remove the android:layout_alignParentTop="true" line from your TextView tag.
However, it sounds like you might be trying to make the text change its size to fit the entire height of the ImageView. This obviously won't solve that, but I wouldn't recommend doing that in the first place as it could result in some strange looking views.

You can use distinct sizes by using
android:layout_width="wrap_content"
and /or
android:height="300dp"
(same for height). Also check margins and paddings.
If you need to be more dynamic, you might consider android:layout_weight i.e. for letting 2 buttons have equal width and fill the horizontal space of the parent view you would set:
android:layout_height="wrap_content"
android_layout:weight="0.5".
you can follow this link: How to make two different layout to have same height?

Button in relative layout not affected by setting layout margins

A custom Dialog box with a RelativeLayout contains a Button widget that won't change its margins, regardless of direction. Here's the xml:
<?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="horizontal" android:background="#99000000">
<TextView android:id="#+id/dialogtitle" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:text="Some text" />
<TextView android:id="#+id/dialogtext" android:layout_width="300dp"
android:layout_height="wrap_content" android:textSize="15dp"
android:layout_alignParentLeft="true" android:layout_below="#id/dialogtitle"
android:paddingLeft="8dp" />
<Button android:id="#+id/dialogbuttoninfo" android:layout_width="80dp"
android:layout_height="wrap_content" android:text="Doesn't care about margins"
android:layout_alignParentRight="true" android:layout_marginLeft="128dp" />
</RelativeLayout>
Padding works but only moves the text inside the button. Any suggestions?

This seems crappy but have you tried putting it all in a LinearLayout instead? or perhaps removing android:orientation="horizontal". I dont think RelativeLayout cares about orientation from what I've seen. Also I think, but might be wrong, that if you do a LinearLayout then you won't need to have android:layout_alignParentLeft="true" in there either.
After cleaning it up a bit (sorry but its so hard to read when its compressed as it was in the question) you also didn't state where the last TextView , dialogbuttoninfo was supposed to be relative to everything else, I think you have to do that for Relative layouts to behave properly, I've had some squirrely things happen.
<?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"
android:background="#99000000">
<TextView
android:id="#+id/dialogtitle"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Some text" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:id="#+id/dialogtext"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:textSize="15dp"
android:layout_alignParentLeft="true"
android:paddingLeft="8dp" />
<Button
android:id="#+id/dialogbuttoninfo"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:text="Doesn't care about margins"
android:layout_alignParentRight="true"
android:layout_marginLeft="128dp" />
</LinearLayout>
</LinearLayout>

You may need to align the left of the button against something before the margin has real meaning.

How to place Relative layout at bottom of screen(or linear layout).?

I have following in xml
I wanna put the second linear layout at the bottom of the screen.
How will i do?
I have set the property of second Relative layout to bottom but still not showing at bottom..
**
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_height="fill_parent"
android:layout_width="fill_parent">
<RelativeLayout android:id="#+id/RelativeLayout01"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</RelativeLayout>
<RelativeLayout android:id="#+id/RelativeLayout02"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
</RelativeLayout>
<RelativeLayout android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_gravity="bottom">
</RelativeLayout>
</LinearLayout>
**
Thanx in advance

I was searching for this a while too. My just found solution is to use the property:
android:layout_alignParentBottom="true"
instead of your existing android:layout_gravity="bottom"
This unfortunately with my layout only works when having an additional RelativeLayout as root layout and the rest added to it. Maybe this is not always the case, but with having a LinearLayout (even when told to use fill_parent) it only used the height all added elements needed and put my footer at the bottom of those.
I came to this solution, looking at this related question: How do I achieve the following result using RelativeLayout?
EDIT here because format in answer comment got lost:
Do you mean you can't re-write it or that it didn't work?
I had a vertical LinearLayout too and my new xml structure looks (without the layout size params etc.) sth. like this:
<RelativeLayout>
<RelativeLayout
android:id="#+id/RelativeLayout01">
</RelativeLayout>
<RelativeLayout
android:id="#+id/RelativeLayout02"
android:layout_below="#+id/RelativeLayout01">
</RelativeLayout>
<RelativeLayout
android:layout_below="#+id/RelativeLayout02"
android:layout_alignParentBottom="true">
</RelativeLayout>
</RelativeLayout>

The Layout you want at the bottom should have:
android:gravity = "bottom"
and its parent should have:
android:layout_height="fill_parent"

<Linearlayout android:layout_height="fill_parent"
android:orinationtation="vertical"
android:layout_width="fill_parent">
<RelativeLayout android:layout_height="0dp"
android:layout_width="fill_parent"
android:weight="1">
</RelativeLayout>
<RelativeLayout
android:layout_height="0dp"
android:layout_width="fill_parent"
android:weight="1"
>
</RelativeLayout>
</Linearlayout >

You should put a View before your last layout with weight 1, and it will put it to bottom. Like this:
<View android:id="#+id/emptySpace"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
/>

Try using:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffb3e5fc"
android:id="#+id/linearLayout1">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="bottom">
<Button
android:id="#+id/button1"
android:text="Left"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_toLeftOf="#+id/centerPoint" />
<TextView
android:id="#+id/centerPoint"
android:text=""
android:layout_width="1dip"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true" />
<Button
android:id="#+id/button2"
android:text="Right"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_toRightOf="#+id/centerPoint" />
</RelativeLayout>
</LinearLayout>
It produces something that looks like this

For my it's work.
<RelativeLayout
android:id="#+id/InnerRelativeLayout"
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="#fff"
android:gravity="bottom"
app:layout_anchor="#+id/fab_inout"
app:layout_anchorGravity="bottom|center">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="dsfsdfasdf df" />
</RelativeLayout>