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Changing xml or layout during runtime

on my Android project I need to change the color of a xml property: app:footerColor="#1573D6" dynamically during runtime. How can I achieve this?
I could change the layout too during the running of the App, but I looked for how to do it and couldn't find anything.
Some help would be great. Thank you very much.
Here's my xml:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<com.viewpagerindicator.TitlePageIndicator
android:id="#+id/tabloid"
android:padding="10dip"
android:layout_height="40dp"
android:layout_width="fill_parent"
android:background="#000000"
android:textColor="#1573D6"
app:footerColor="#1573D6"
app:footerLineHeight="2dp"
app:footerIndicatorStyle="none"
app:selectedColor="#FFFFFF"
app:selectedBold="true" />
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" />

you can do this in code:
TitlePageIndicator indicator =(TitlePageIndicator)findViewById(R.id.yourview)
indicator.SetFooterColor(Color.parse( #1573D6))

Unable to scroll

Please have a look at the following android xml file which is responsible for creating GUI
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent"
android:layout_width="fill_parent">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/imageTitle"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="14dp"
android:text="#string/imageDate"
android:textAppearance="?android:attr/textAppearanceLarge" />
<ImageView
android:id="#+id/imageView1"
android:layout_width="match_parent"
android:layout_height="254dp"
android:layout_weight="0.34"
android:src="#drawable/test_image" />
<TextView
android:id="#+id/textView3"
android:layout_width="fill_parent"
android:layout_height="136dp"
android:text="#string/imageDescription" />
</LinearLayout>
</ScrollView>
I am trying to scroll the whole screen, but it is not happening. The uploaded images will make it clear to you. Why it is not scrolling? I am new to android and this is my second app. Please help!

for using scroll view, if u have entire view to be scrollable, use scroll view as parent layout and use code like this.
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true">
here android:fillViewport="true" this is important part which allows u to fill the entire screen for your layout. if any other issue ask .
As android.developer says for fillViewport Defines whether the scrollview should stretch its content to fill the viewport.

Change this 2 like this
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/textView3"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/imageDescription" />

I think you should use wrap_content in the LinearLayout

Button in Android XML Layout

I'm working with a package some fellow members found for me that allows a slider to start at the top and slide to the bottom. I need to add content behind the slider, but I'm unsure of where to put it in the XML. Maybe I have to add a linear layout, but I'm not sure. I just need to add one button that sits in the very center of the screen. I think it needs to be put in the following code:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" xmlns:ns="http://schemas.android.com/apk/res/it.sephiroth.demo.slider">
<Button
android:id="#+id/button_open"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:text="#string/open"
android:layout_centerInParent="true"
android:visibility="gone" />
<it.sephiroth.demo.slider.widget.MultiDirectionSlidingDrawer
xmlns:my="http://schemas.android.com/apk/res/it.sephiroth.demo.slider"
android:id="#+id/drawer"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
ns:content="#+id/content"
ns:direction="topToBottom"
ns:handle="#+id/handle" >
<include
android:id="#id/content"
layout="#layout/pen_content" />
<ImageView
android:id="#id/handle"
android:layout_width="wrap_content"
android:layout_height="40px"
android:src="#drawable/sliding_drawer_handle_bottom" />
</it.sephiroth.demo.slider.widget.MultiDirectionSlidingDrawer>
</RelativeLayout>
I'd also like for the button to be behind the drawer.
Any help would be great!

Try This:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" xmlns:ns="http://schemas.android.com/apk/res/it.sephiroth.demo.slider">
<LinerLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:gravity="center"
android:layout_height="wrap_content" >
<Button
android:id="#+id/button_open"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:text="#string/open"
android:layout_centerInParent="true"
android:visibility="gone" />
</LinerLayout

Putting a menu bar on the bottom of the screen while using ExpandableListView

I figured out how to get the menu bar on top of the screen. It stays in position while I move around the main menu I created using expandableListView. However, I would like the menu bar to be on the bottom of the screen instead of the top. I played around with relativeView and got the bar on the bottom, however, the main menu disappears.
Here is my main xml file
<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/buttons"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<Button
android:id="#+id/buttonbefore"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="50"
android:text="back" />
<Button
android:id="#+id/buttonnext"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="50"
android:text="Next" />
</LinearLayout>
<ExpandableListView
android:id="#+id/android:list"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
<TextView
android:id="#+id/android:empty"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="#string/main_no_items" />
Then I used this for java to get it to appear in my program.
LinearLayout bottomMenu = (LinearLayout)findViewById(R.id.buttons);
I tried playing around with the gravity and it did nothing. I can add more code from my program if you think it will help.

I'm assuming your buttons LinearLayout is the 'menu bar' you're referring to?
You can actually accomplish what you're looking for using either a RelativeLayout or a LinearLayout.
LinearLayout:
<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="vertical" >
<ExpandableListView
android:id="#android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
<TextView
android:id="#android:id/empty"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="#string/main_no_items" />
</LinearLayout>
<LinearLayout
android:id="#+id/buttons"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:orientation="horizontal" >
<Button
android:id="#+id/buttonbefore"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="back" />
<Button
android:id="#+id/buttonnext"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Next" />
</LinearLayout>
</LinearLayout>
The buttons are bottom-aligned by setting the gravity, while the list is told to take up all other available space by giving it a weight of '1' and setting a height of '0dp'. That will cause it to stretch as much as possible without pushing the buttons off-screen.
RelativeLayout:
<?xml version="1.0" encoding="UTF-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/buttons"
android:orientation="vertical" >
<ExpandableListView
android:id="#android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
<TextView
android:id="#android:id/empty"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="#string/main_no_items" />
</LinearLayout>
<LinearLayout
android:id="#+id/buttons"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="horizontal" >
<Button
android:id="#+id/buttonbefore"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="back" />
<Button
android:id="#+id/buttonnext"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Next" />
</LinearLayout>
</RelativeLayout>
The buttons are bottom-aligned by setting the alignment on the parent. The list is told to fill all height, but stay 'above' the buttons.
On a general note: in order for this to work, I'm pretty sure that the list and empty views need to be combined together in their own layout.

The way to align the buttons to the bottom is to change your top level LinearLayout into a RelativeLayout. Then you can add the attribute android:layout_alignParentBottom="true" to your LinearLayout #+id/buttons, which holds your two buttons.

android: image in icon not showing

I'm trying to place a banner at the top of a listview, one that stays there when the list scrolls down. The layout I currently have actually show what I want in the preview but when I run it in the emulator the only thing that appears is the list.
The XML is:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView android:src="#drawable/edinburghcrest"
android:layout_height="wrap_content" android:layout_width="wrap_content"
android:id="#+id/EdUniCrest" android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"></ImageView>
<TextView android:layout_height="wrap_content" android:id="#+id/banner"
android:text="Hotels Nearby" android:textColor="#FFFFFF"
android:gravity="center" android:textSize="20dp" android:layout_width="wrap_content"
android:layout_alignParentTop="true" android:layout_toRightOf="#+id/EdUniCrest"
android:layout_alignParentRight="true" android:layout_alignBottom="#+id/EdUniCrest"
android:background="#25476C"></TextView>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent"
android:background="#color/listcolor" android:orientation="vertical" android:layout_marginTop="50dp">
<ListView android:id="#android:id/list" android:layout_width="wrap_content"
android:layout_height="wrap_content">
</ListView>
<TextView android:id="#android:id/empty" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="#string/no_lunchs" />
</LinearLayout>
Anyway, I can't see why it isn't working. Does anyone have any idea what it might be?
Thanks.

The RelativeLayout here just makes it confusing. You can achieve this simply with a couple of LinearLayouts. Wrap your banner in a horizontal layout with a height=wrap_content and set you ListView to height=fill_parent. The list will then fill all available space. The List will scroll independently of the rest of the page.
Something like below should work:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<LinearLayout android:orientation="horizontal" android:id="#+id/bannerBar"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<ImageView android:src="#drawable/edinburghcrest"
android:layout_height="wrap_content" android:layout_width="wrap_content"
android:id="#+id/EdUniCrest"/>
<TextView android:layout_height="wrap_content" android:id="#+id/banner"
android:text="Hotels Nearby" android:textColor="#FFFFFF"
android:gravity="center" android:textSize="20dp" android:layout_width="wrap_content"
android:background="#25476C"/>
</LinearLayout>
<ListView android:id="#android:id/list" android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
<TextView android:id="#android:id/empty" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:text="#string/no_lunchs" />
</LinearLayout>

What if you wrapped your RelativeLayout in a ScrollView, and since a ScrollView can only have one child, put the banner above it?