Develop Reference

display the image in the right corner

I have the following code with which i am trying to display at right corner of the title bar but its getting displayed in center.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="35dip"
android:gravity="center_vertical"
android:background="#drawable/formheader">
<ImageView
android:id="#+id/header"
android:background="#drawable/ic_launcher"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ShowRoom"
android:textColor="#android:color/black"
android:textStyle="bold"/>
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:clickable="true"
android:background="#drawable/menu"/>
</LinearLayout>

These are the properties of RelativeLayout, So it won't work with LinearLayout.
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
Add android:layout_weight="1" to TextView.
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="ShowRoom"
android:textColor="#android:color/black"
android:textStyle="bold" />
Change it like below :
<?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="35dip"
android:gravity="center_vertical"
android:orientation="horizontal" >
<ImageView
android:id="#+id/header"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/ic_launcher" />
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:text="ShowRoom"
android:textColor="#android:color/black"
android:textStyle="bold" />
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/ic_launcher"
android:clickable="true" />
</LinearLayout>

You can do it in 2 ways,
Follow #prag's answer if you want to continue with LinearLayout.
Another simplest way is to use RelativeLayout like below,
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="35dip"
android:gravity="center_vertical"
android:background="#drawable/formheader">
<ImageView
android:id="#+id/header"
android:background="#drawable/ic_launcher"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="#id/header"
android:layout_centerVertical="true"
android:text="ShowRoom"
android:textColor="#android:color/black"
android:textStyle="bold"/>
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:clickable="true"
android:background="#drawable/ic_launcher"/>
</RelativeLayout>

Try this layout
<?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="35dip"
android:orientation="horizontal" >
<ImageView
android:id="#+id/header"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/ic_launcher" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:text="ShowRoom"
android:textColor="#android:color/black"
android:textStyle="bold" />
<View
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1" >
</View>
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:background="#drawable/ic_launcher"
android:clickable="true" />
</LinearLayout>
Note: Replace my drawable image with yours. Hope this resolves your problem

How to make text scroll and keep other elements fixed to the bottom of the screen?

I'm trying to create the following display, where the text scrolls and the other elements are fixed to the bottom of the screen:
However, it is appearing as follows, where the text doesn't scroll and it's pushing the elements off the screen.:
This is the layout I'm using:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/widget32"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center">
<ScrollView
android:id="#+id/scroller"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="#+id/txtTC"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20sp"
android:paddingLeft="20dp"
android:layout_alignParentLeft="true" />
</ScrollView>
<CheckBox
android:id="#+id/chkBox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_gravity="center"
android:text="Don't Show Again"
android:layout_below="#+id/scroller" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="#+id/chkBox"
android:layout_alignParentBottom="true">
<RelativeLayout
android:id="#+id/btnCancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical"
android:layout_weight="1">
<ImageButton
android:id="#+id/imgCancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:paddingTop="0dip"
android:src="#drawable/stop"
android:paddingBottom="5dip"
android:paddingRight="5dip"
android:background="#drawable/common_button" />
<TextView
android:id="#+id/txtCancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true"
android:layout_below="#id/imgCancel"
android:layout_centerHorizontal="true"
android:layout_marginTop="30dp"
android:text="OK"
android:textStyle="bold" />
</RelativeLayout>
</LinearLayout>
</RelativeLayout>
What do I need to do to make the text scroll and the other elements fixed to the bottom of the screen?

Try replacing this xml code and apply images where you need
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/widget32"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#5555"
android:gravity="center"
android:orientation="vertical"
android:padding="25dp" >
<TextView
android:id="#+id/textView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Terms and Conditions"
android:textAppearance="?android:attr/textAppearanceLarge" />
<ScrollView
android:id="#+id/scroller"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" >
<TextView
android:id="#+id/txtTC"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:paddingLeft="20dp"
android:textSize="20sp" />
</ScrollView>
<CheckBox
android:id="#+id/chkBox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/scroller"
android:layout_gravity="center_vertical"
android:text="Don&apos;t Show Again" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="#+id/chkBox"
android:layout_alignParentBottom="true">
<RelativeLayout
android:id="#+id/btnCancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical"
android:layout_weight="1">
<ImageButton
android:id="#+id/imgCancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:paddingTop="0dip"
android:paddingBottom="5dip"
android:paddingRight="5dip" />
<TextView
android:id="#+id/txtCancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true"
android:layout_below="#id/imgCancel"
android:layout_centerHorizontal="true"
android:layout_marginTop="30dp"
android:text="OK"
android:textStyle="bold" />
</RelativeLayout>
</LinearLayout>
</LinearLayout>

You should add the ScrollView Containing the TextView inside a Layout(Linear would do). I hope it helps

ListView Row Layout Pushing ImageButton Off Screen

I am trying to create a Row layout to use in my ListView,
but when the text is too long, it pushes the right hand side ImageButton off the screen.
I want the text to just continue on the next line without interfering with the ImageButton-
This is the layout I have so far, I tried adding weight properties to set how much space could be use but I couldn't get it to work.
<?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="wrap_content"
android:orientation="horizontal" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:gravity="center"
android:orientation="horizontal" >
<ImageView
android:id="#+id/ImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_launcher" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/Title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/Text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceSmall" />
<TextView
android:id="#+id/Text2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceSmall" />
<TextView
android:id="#+id/Text3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="right"
android:orientation="horizontal" >
<ImageButton
android:id="#+id/ImageButton"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:drawableTop="#drawable/ic_launcher" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
Thank You.

No matter what lenght if text, first and last image will be of width 50dp occupied, rest space for text.
<LinearLayout
android:layout_width="50dp"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal" >
<ImageView
android:id="#+id/ImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_launcher" />
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical" >
<TextView
android:id="#+id/Title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/Text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceSmall" />
<TextView
android:id="#+id/Text2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceSmall" />
<TextView
android:id="#+id/Text3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
<LinearLayout
android:layout_width="50dp"
android:layout_height="wrap_content"
android:gravity="right"
android:orientation="horizontal" >
<ImageButton
android:id="#+id/ImageButton"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:drawableTop="#drawable/ic_launcher" />
</LinearLayout>

You're using too many LinearLayouts, and also you're not defining any constrain for your views space.
Try this:
<?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" >
<ImageView
android:id="#+id/ImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:src="#drawable/ic_launcher" />
<ImageButton
android:id="#+id/ImageButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:drawableTop="#drawable/ic_launcher" />
<LinearLayout
android:id="#+id/LinearLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toLeftOf="#id/ImageButton"
android:layout_toRightOf="#id/ImageView"
android:orientation="vertical" >
<TextView
android:id="#+id/Title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/Text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceSmall" />
<TextView
android:id="#+id/Text2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceSmall" />
<TextView
android:id="#+id/Text3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
</RelativeLayout>

Android Title + Button in titlebar not coming properly aligned

I am trying to add title + button in titlebar in Android. But somehow i am not happy with the kind of result i am getting. May be something wrong with code. Has anyone tried this earlier ? My .xml is below
code.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="40dip"
android:background="#484848"
android:orientation="horizontal">
<TextView
android:id="#+id/windowtitle"
android:layout_width="match_parent"
android:layout_marginTop="2dip"
android:layout_height="wrap_content"
android:text="Support"
android:gravity="center_horizontal"
android:textSize="30sp" ></TextView>
<Button
android:id="#+id/syncbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="3dip"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:gravity="left"
android:text="Sync" />
</RelativeLayout>
</RelativeLayout>

Please mention exact issue you are facing, I assume the alignment of the two views is not proper is the issue.
You can give the relative position of the button with respect to the text view to the button xml,
android:layout_toRightOf="#+id/windowtitle"
Also, add the alignment to the textview

Replace your XML with below code..
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#484848"
android:orientation="horizontal">
<TextView
android:id="#+id/windowtitle"
android:layout_width="fill_parent"
android:layout_centerInParent="true"
android:layout_height="wrap_content"
android:text="Support"
android:gravity="center_horizontal|center_vertical"
android:textSize="30sp" ></TextView>
<Button
android:id="#+id/syncbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_marginTop="3dip"
android:layout_alignParentRight="true"
android:text="Sync" />
</RelativeLayout>
</RelativeLayout>
Hope this work.....

Try this..
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="40dip"
android:background="#484848">
<TextView
android:id="#+id/windowtitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Support"
android:layout_centerHorizontal="true"
android:textSize="30sp" ></TextView>
<Button
android:id="#+id/syncbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:text="Sync" />
</RelativeLayout>
</RelativeLayout>
Here is my screen

Remove android:gravity="center_horizontal" from windowtitle Textview and add android:layout_centerInParent="true" even change width to wrap_content.
and add android:layout_centerVertical="true" to syncbutton button and there is no need of android:layout_alignParentTop="true"
It all centered your views.
check below xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="40dip"
android:background="#484848"
android:orientation="horizontal" >
<TextView
android:id="#+id/windowtitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_marginTop="2dip"
android:text="Support"
android:textSize="30sp" >
</TextView>
<Button
android:id="#+id/syncbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_gravity="center"
android:layout_marginTop="3dip"
android:gravity="left"
android:text="Sync" />
</RelativeLayout>
</RelativeLayout>

Use this
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="50dip"
android:background="#484848" >
<TextView
android:id="#+id/windowtitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="Support"
android:textSize="30sp" >
</TextView>
<Button
android:id="#+id/syncbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:text="Sync" />
</RelativeLayout>

Use the following Code this might fullfill your requirement:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#484848"
android:orientation="horizontal">
<TextView
android:id="#+id/windowtitle"
android:layout_width="match_parent"
android:layout_centerVertical="true"
android:layout_height="wrap_content"
android:text="Support"
android:gravity="center_horizontal"
android:textSize="30sp" ></TextView>
<Button
android:id="#+id/syncbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:text="Sync" />
</RelativeLayout>
</RelativeLayout>

use this
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="40dip"
android:background="#484848"
android:orientation="horizontal">
<TextView
android:id="#+id/windowtitle"
android:layout_width="wrap_content"
android:layout_marginTop="2dip"
android:layout_height="wrap_content"
android:text="Support"
android:gravity="center_horizontal"
android:textSize="30sp" ></TextView>
<Button
android:id="#+id/syncbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:text="Sync" />
</RelativeLayout>

Center Button horizontally doesn't work

hy!
I want to center my button horizontally, but this never work.
My Layout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/minage"
android:layout_alignParentLeft="true"
android:padding="5dp" />
<TextView
android:id="#+id/ml_minage_value"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:padding="5dp"/>
</RelativeLayout>
<SeekBar
android:id="#+id/ml_minage"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:max="100"
style="#style/NFFSeek"
android:progressDrawable="#drawable/myseekbar"
android:layout_margin="5dp" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/maxage"
android:padding="5dp"/>
<TextView
android:id="#+id/ml_maxage_value"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:padding="5dp" />
</RelativeLayout>
<SeekBar
android:id="#+id/ml_maxage"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
style="#style/NFFSeek"
android:progressDrawable="#drawable/myseekbar"
android:layout_margin="5dp" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/distance"
android:padding="5dp" />
<TextView
android:id="#+id/ml_distance_value"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:padding="5dp" />
</RelativeLayout>
<SeekBar
android:id="#+id/ml_distance"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
style="#style/NFFSeek"
android:progressDrawable="#drawable/myseekbar"
android:layout_margin="5dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/gender"
android:padding="5dp" />
<RadioGroup
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checkedButton="#drawable/rbon" >
<RadioButton
android:id="#+id/ml_female"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:button="#drawable/rbselector"
android:checked="true"
android:drawablePadding="10dp"
android:text="#string/rb_female"
android:textColor="#000000"
android:paddingLeft="42dp" />
<RadioButton
android:id="#+id/ml_male"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/rb_male"
android:button="#drawable/rbselector"
android:layout_margin="5dp"
android:textColor="#000000"
android:paddingLeft="42dp"
/>
</RadioGroup>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<Button
android:id="#+id/ml_stbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="15dp"
android:background="#drawable/custom_button"
android:layout_alignParentBottom="true"
android:layout_centerInParent="true"
android:layout_alignParentTop="true"
android:gravity="center"
android:padding="10dp"
android:text="Flirt"
android:textColor="#ffffff"
android:textSize="12pt"
android:typeface="serif" />
</RelativeLayout>
</LinearLayout>
this xml doesn't fit the button in the middle please help.

The problem is that the RelativeLayout does not span the width of the page, it's width is wrap_content. The button is centered in the RelativeLayout, but that layout is only as wide as the button, and is mashed up against the left side of the screen.
Make the inner RelativeLayout's width as match_parent.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
...

<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<Button
android:id="#+id/ml_stbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="15dp"
android:background="#drawable/custom_button"
android:layout_centerInParent="true"
android:gravity="center"
android:padding="10dp"
android:text="Flirt"
android:textColor="#ffffff"
android:textSize="12pt"
android:typeface="serif" />
</RelativeLayout>

This isn't speaking directly to your question, but your view hierarchy is too complicated. I suggest you replace all of the LinearLayout and RelativeLayout elements with a single RelativeLayout that spans the whole thing.