forming words in android - android

I didn't know how to call it but I'll try to explain what I mean -
How can I build an interface in android that can print some letters and then the user can pick some letters and form a word or a sentence.
Example: for those of you who know "Draw Something", when you have to guess what your friends drew, you have some scrambled letters from which you can pick some and form a sentence.
Here is an image of that:
http://i.gyazo.com/033b5c9a2864c6a17d7445e0a1a3079e.png
How can I achieve that?


Something like this?
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<EditText
android:id="#+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="19dp"
android:ems="10" >
<requestFocus />
</EditText>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/editText1"
android:layout_centerHorizontal="true" >
<Button
android:id="#+id/button1"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="A" />
<Button
android:id="#+id/button2"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toRightOf="#+id/button1"
android:text="B" />
<Button
android:id="#+id/button3"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toRightOf="#+id/button2"
android:text="C" />
<Button
android:id="#+id/button4"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toRightOf="#+id/button3"
android:text="D" />
<Button
android:id="#+id/button5"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/button1"
android:text="E" />
<Button
android:id="#+id/button6"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button2"
android:layout_alignTop="#+id/button5"
android:text="F" />
<Button
android:id="#+id/button7"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button3"
android:layout_alignTop="#+id/button6"
android:text="G" />
<Button
android:id="#+id/button8"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button4"
android:layout_alignTop="#+id/button7"
android:text="H" />
</RelativeLayout>
</RelativeLayout>

Related

swipe across button without finger leaving the screen

I am making this phone dialer app for blind people that say the number that gets pressed and I want them to be able to swipe across the all buttons without their finger leaving the screen. When they swipe the number it only get pronounced and when they release the number it gets typed. I tried on the touch listener and swipe motion and it's not working. What I should do to make this work?
Here is my XML:
<Button
android:text="call"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:id="#+id/button10"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<Button
android:text="playback"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/button11"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_above="#+id/button10"
android:layout_below="#+id/button4" />
<Button
android:text="#"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/button10"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:id="#+id/buttonhash" />
<Button
android:text="9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/buttonhash"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:id="#+id/button9" />
<Button
android:text="*"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/buttonastrike"
android:layout_alignBaseline="#+id/button0"
android:layout_alignBottom="#+id/button0"
android:layout_alignLeft="#+id/button7"
android:layout_alignStart="#+id/button7" />
<Button
android:text="4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/button4"
android:layout_below="#+id/button1"
android:layout_alignLeft="#+id/button7"
android:layout_alignStart="#+id/button7"
android:layout_toLeftOf="#+id/button5"
android:layout_toStartOf="#+id/button5" />
<Button
android:text="7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/button7"
android:layout_alignBaseline="#+id/button8"
android:layout_alignBottom="#+id/button8"
android:layout_toRightOf="#+id/button11"
android:layout_toLeftOf="#+id/button5"
android:layout_toStartOf="#+id/button5" />
<Button
android:text="delete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/button15"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_above="#+id/button11"
android:layout_alignTop="#+id/button1" />
<EditText
android:focusable="false"
android:focusableInTouchMode="false"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textPersonName"
android:text=""
android:ems="10"
android:id="#+id/editText"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
<Button
android:text="1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/button1"
android:layout_alignBaseline="#+id/button2"
android:layout_alignBottom="#+id/button2"
android:layout_alignLeft="#+id/button4"
android:layout_alignStart="#+id/button4"
android:layout_toLeftOf="#+id/button5"
android:layout_toStartOf="#+id/button5" />
<Button
android:text="6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/button6"
android:layout_above="#+id/button9"
android:layout_alignLeft="#+id/button9"
android:layout_alignStart="#+id/button9" />
<Button
android:text="5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/button5"
android:layout_alignBaseline="#+id/button4"
android:layout_alignBottom="#+id/button4"
android:layout_toLeftOf="#+id/button9"
android:layout_toStartOf="#+id/button9" />
<Button
android:text="8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/button8"
android:layout_alignBaseline="#+id/button9"
android:layout_alignBottom="#+id/button9"
android:layout_alignLeft="#+id/button5"
android:layout_alignStart="#+id/button5" />
<Button
android:text="2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/button2"
android:layout_alignBaseline="#+id/button3"
android:layout_alignBottom="#+id/button3"
android:layout_alignLeft="#+id/button5"
android:layout_alignStart="#+id/button5" />
<Button
android:text="0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/button0"
android:layout_alignBaseline="#+id/buttonhash"
android:layout_alignBottom="#+id/buttonhash"
android:layout_alignLeft="#+id/button8"
android:layout_alignStart="#+id/button8" />
<Button
android:text="3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/button3"
android:layout_above="#+id/button6"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />

Android:how make responsive xml

i want create a password activity to get password then show main activity i make the xml file like this
this is my xml
<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="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="ir.sheikhoo.safesms.LoginActivity"
android:background="#373737" >
<EditText
android:id="#+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button1"
android:layout_alignParentTop="true"
android:layout_alignRight="#+id/button3"
android:ems="10"
android:inputType="textPassword" >
<requestFocus />
</EditText>
<Button
android:id="#+id/button2"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/button1"
android:layout_centerHorizontal="true"
android:text="8" />
<Button
android:id="#+id/button1"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/editText1"
android:layout_marginTop="21dp"
android:layout_toLeftOf="#+id/button2"
android:text="7" />
<Button
android:id="#+id/button3"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button2"
android:layout_alignBottom="#+id/button2"
android:layout_toRightOf="#+id/button2"
android:text="9" />
<Button
android:id="#+id/button4"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/button2"
android:layout_toLeftOf="#+id/button2"
android:text="4" />
<Button
android:id="#+id/button5"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/button2"
android:layout_toLeftOf="#+id/button3"
android:text="5" />
<Button
android:id="#+id/button6"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button5"
android:layout_alignBottom="#+id/button5"
android:layout_alignLeft="#+id/button3"
android:text="6" />
<Button
android:id="#+id/button7"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button4"
android:layout_below="#+id/button4"
android:text="1" />
<Button
android:id="#+id/button8"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button7"
android:layout_alignBottom="#+id/button7"
android:layout_toLeftOf="#+id/button6"
android:text="2" />
<Button
android:id="#+id/button9"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button6"
android:layout_alignTop="#+id/button8"
android:text="3" />
<Button
android:id="#+id/button10"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button7"
android:layout_alignRight="#+id/button9"
android:layout_below="#+id/button8"
android:text="0" />
</RelativeLayout>
this is image
or this
<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="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="ir.sheikhoo.safesms.LoginActivity"
android:background="#373737" >
<EditText
android:id="#+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:ems="10"
android:inputType="textPassword" >
<requestFocus />
</EditText>
<Button
android:id="#+id/button3"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button2"
android:layout_alignBottom="#+id/button2"
android:layout_alignParentRight="true"
android:text="9" />
<Button
android:id="#+id/button6"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button5"
android:layout_alignBottom="#+id/button5"
android:layout_alignLeft="#+id/button3"
android:text="6" />
<Button
android:id="#+id/button7"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button4"
android:layout_below="#+id/button4"
android:text="1" />
<Button
android:id="#+id/button9"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button6"
android:layout_alignTop="#+id/button8"
android:text="3" />
<Button
android:id="#+id/button10"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button7"
android:layout_alignRight="#+id/button9"
android:layout_below="#+id/button8"
android:text="0" />
<Button
android:id="#+id/button1"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button2"
android:layout_alignBottom="#+id/button2"
android:layout_alignLeft="#+id/editText1"
android:text="7" />
<Button
android:id="#+id/button4"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button5"
android:layout_alignBottom="#+id/button5"
android:layout_alignLeft="#+id/button1"
android:text="4" />
<Button
android:id="#+id/button5"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button2"
android:layout_below="#+id/button2"
android:text="5" />
<Button
android:id="#+id/button8"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button7"
android:layout_alignBottom="#+id/button7"
android:layout_alignLeft="#+id/button5"
android:text="2" />
<Button
android:id="#+id/button2"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/editText1"
android:layout_centerHorizontal="true"
android:layout_marginTop="31dp"
android:text="8" />
</RelativeLayout>
but I want the button width change when the screen change size and fill all screen

Try this,
<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="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="ir.sheikhoo.safesms.LoginActivity"
android:background="#373737" >
<EditText
android:id="#+id/editText1"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:ems="10"
android:inputType="textPassword" >
<requestFocus />
</EditText>
<Button
android:id="#+id/button3"
style="?android:attr/buttonStyleSmall"
android:layout_marginRight="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button2"
android:layout_alignBottom="#+id/button2"
android:layout_alignParentRight="true"
android:text="9" />
<Button
android:id="#+id/button6"
style="?android:attr/buttonStyleSmall"
android:layout_marginRight="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button5"
android:layout_alignBottom="#+id/button5"
android:layout_alignLeft="#+id/button3"
android:text="6" />
<Button
android:id="#+id/button7"
style="?android:attr/buttonStyleSmall"
android:layout_marginLeft="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/button4"
android:text="1" />
<Button
android:id="#+id/button9"
style="?android:attr/buttonStyleSmall"
android:layout_marginRight="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button6"
android:layout_alignTop="#+id/button8"
android:text="3" />
<Button
android:id="#+id/button10"
style="?android:attr/buttonStyleSmall"
android:layout_width="match_parent"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_height="wrap_content"
android:layout_below="#+id/button8"
android:text="0" />
<Button
android:id="#+id/button1"
style="?android:attr/buttonStyleSmall"
android:layout_marginLeft="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/button2"
android:text="7" />
<Button
android:id="#+id/button4"
style="?android:attr/buttonStyleSmall"
android:layout_marginLeft="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button5"
android:layout_alignBottom="#+id/button5"
android:text="4" />
<Button
android:id="#+id/button5"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_alignLeft="#+id/button2"
android:layout_below="#+id/button2"
android:text="5" />
<Button
android:id="#+id/button8"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button7"
android:layout_alignBottom="#+id/button7"
android:layout_centerHorizontal="true"
android:layout_alignLeft="#+id/button5"
android:text="2" />
<Button
android:id="#+id/button2"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/editText1"
android:layout_centerHorizontal="true"
android:layout_marginTop="31dp"
android:text="8" />
</RelativeLayout>

You can use LinearLayout's "weight" attribute for this design. So create a new folder duplicate layout in this directory (create if doesn't exist in) : /res/layout-land.
I just show you the first line of the three buttons, i.e. button 7, 8 and 9:
<LinearLayout android:layout_height="wrap_content"
android:layout_width="match_parent"
android:orientation="horizontal"
android:layout_below="#+id/editText">
<Button android:id="#+id/btn7
android:layout_weight="1"
... />
<Button android:id="#+id/btn8
android:layout_weight="1"
... />
<Button android:id="#+id/btn9
android:layout_weight="1"
... />
</LinearLayout>
Don't forget to set configChanges="orientation" in manifest.

My android layout changes each time i chose a different device in emulator even if they have approximately same size?

Here is my xml file
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingLeft="15dp"
android:paddingRight="15dp"
tools:context=".MainActivity" >
<TextView
android:id="#+id/ResultText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="right"
android:textSize="20sp"
android:layout_marginTop="5dp"
android:background="#EEEEEE" />
<TextView
android:id="#+id/InputText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/ResultText"
android:layout_below="#+id/ResultText"
android:background="#BBBBBB"
android:gravity="right"
android:textColor="#FFFFFF"
android:layout_marginTop="4dp"
android:textSize="15sp" />
<Button
android:id="#+id/button5"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button1"
android:layout_below="#+id/button1"
android:text="5" />
<Button
android:id="#+id/button7"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button3"
android:layout_alignTop="#+id/button6"
android:text="7" />
<Button
android:id="#+id/button8"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button4"
android:layout_alignTop="#+id/button7"
android:text="8" />
<Button
android:id="#+id/button9"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button5"
android:layout_below="#+id/button5"
android:text="9" />
<Button
android:id="#+id/buttonMultiply"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignTop="#+id/buttonDivide"
android:text="x" />
<Button
android:id="#+id/buttonSubtract"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/buttonAdd"
android:layout_alignBottom="#+id/buttonAdd"
android:layout_alignParentRight="true"
android:text="-" />
<Button
android:id="#+id/buttonDivide"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button8"
android:layout_alignBottom="#+id/button8"
android:layout_alignLeft="#+id/buttonAdd"
android:text="/" />
<Button
android:id="#+id/buttonAdd"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button4"
android:layout_alignBottom="#+id/button4"
android:layout_toLeftOf="#+id/buttonSubtract"
android:text="+" />
<Button
android:id="#+id/button4"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/button8"
android:layout_toLeftOf="#+id/buttonDivide"
android:text="4" />
<Button
android:id="#+id/button3"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/button7"
android:layout_toLeftOf="#+id/button8"
android:text="3" />
<Button
android:id="#+id/buttonDot"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button0"
android:layout_alignBottom="#+id/button0"
android:layout_alignLeft="#+id/button7"
android:text="." />
<Button
android:id="#+id/button2"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button3"
android:layout_alignBottom="#+id/button3"
android:layout_toLeftOf="#+id/button3"
android:text="2" />
<Button
android:id="#+id/button6"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/button0"
android:layout_toLeftOf="#+id/button7"
android:text="6" />
<Button
android:id="#+id/button0"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button9"
android:layout_alignBottom="#+id/button9"
android:layout_alignLeft="#+id/button6"
android:text="0" />
<Button
android:id="#+id/button1"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/InputText"
android:layout_marginTop="26dp"
android:layout_toLeftOf="#+id/button2"
android:text="1" />
<Button
android:id="#+id/buttonEqual"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/buttonDot"
android:layout_alignBottom="#+id/buttonDot"
android:layout_alignRight="#+id/buttonMultiply"
android:layout_toRightOf="#+id/button8"
android:text="=" />
<Button
android:id="#+id/buttonDel"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/buttonDot"
android:layout_toRightOf="#+id/buttonDot"
android:text="del" />
<Button
android:id="#+id/buttonSin"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button9"
android:layout_below="#+id/button9"
android:text="sin" />
<Button
android:id="#+id/buttonCos"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button0"
android:layout_alignTop="#+id/buttonSin"
android:text="cos" />
<Button
android:id="#+id/buttonTan"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/buttonDot"
android:layout_alignTop="#+id/buttonCos"
android:text="tan" />
<Button
android:id="#+id/buttonCot"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignTop="#+id/buttonSec"
android:text="cot" />
<Button
android:id="#+id/buttonSec"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/buttonCosec"
android:layout_alignBottom="#+id/buttonCosec"
android:layout_toLeftOf="#+id/buttonCot"
android:text="sec" />
<Button
android:id="#+id/buttonCosec"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/buttonTan"
android:layout_alignBottom="#+id/buttonTan"
android:layout_toLeftOf="#+id/buttonSec"
android:layout_marginLeft="1dp"
android:text="csec" />
<Button
android:id="#+id/buttonPow"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/buttonSin"
android:layout_below="#+id/buttonSin"
android:layout_alignRight="#+id/buttonSin"
android:gravity="left"
android:textSize="10sp"
android:text="yX" />
<Button
android:id="#+id/buttonLog10"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/buttonPow"
android:layout_toRightOf="#+id/buttonPow"
android:text="log" />
<Button
android:id="#+id/buttonLoge"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/buttonLog10"
android:layout_alignBottom="#+id/buttonLog10"
android:layout_toRightOf="#+id/buttonLog10"
android:text="ln" />
<Button
android:id="#+id/buttonSquare"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/buttonLoge"
android:layout_toRightOf="#+id/buttonLoge"
android:text="sqr" />
<Button
android:id="#+id/buttonSqrt"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/buttonSquare"
android:layout_toRightOf="#+id/buttonSquare"
android:text="sqrt" />
<Button
android:id="#+id/buttonFactorial"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignTop="#+id/buttonSqrt"
android:text="x!" />
<Button
android:id="#+id/buttonSinh"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/buttonPow"
android:layout_below="#+id/buttonPow"
android:layout_toLeftOf="#+id/buttonLoge"
android:text="sinh" />
<Button
android:id="#+id/buttonCosh"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/buttonSinh"
android:layout_alignBottom="#+id/buttonSinh"
android:layout_alignLeft="#+id/buttonLoge"
android:layout_toLeftOf="#+id/buttonSqrt"
android:text="cosh" />
<Button
android:id="#+id/buttonTanh"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/buttonSqrt"
android:layout_alignRight="#+id/buttonFactorial"
android:layout_alignTop="#+id/buttonCosh"
android:text="tanh" />
</RelativeLayout>
here are some screen shots:
As you can see the left portion is not filled completely it is on a 4.65 inch xhdpi screen
On a 4 inch hdpi screen its perfect covering full width and full height

Basically, what Ben Pearson suggested, you can use TableLayout and several TableRow layouts. For example, a single row layout XML might look like this:
<TableRow
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="#+id/button5"
style="?android:attr/buttonStyleSmall"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="5" />
<Button
android:id="#+id/button6"
style="?android:attr/buttonStyleSmall"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="6" />
<Button
android:id="#+id/button7"
style="?android:attr/buttonStyleSmall"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="7" />
<Button
android:id="#+id/button8"
style="?android:attr/buttonStyleSmall"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="8" />
<Button
android:id="#+id/buttonDivide"
style="?android:attr/buttonStyleSmall"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="/" />
<Button
android:id="#+id/buttonMultiply"
style="?android:attr/buttonStyleSmall"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="x" />
</TableRow>
Note that since TableRow is a subclass of LinearLayout, it understands the layout_weight attribute on its children. Set the layout_width to 0dp and layout_weight to 1 on each button (or 2, for some buttons).

buttons aligment in virtual device

I am trying to align buttons like simple calculator
But when i align buttons like that when i run it buttons can shift from desired location.
I can't understand what is problem.
here is code :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="#dimen/activity_horizontal_margin"
android:gravity="fill_vertical"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<Button
android:id="#+id/button11"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button4"
android:layout_alignBottom="#+id/button4"
android:layout_alignLeft="#+id/button14"
android:layout_toLeftOf="#+id/button12"
android:onClick="#string/_onclick"
android:text="#string/_4" />
<Button
android:id="#+id/button16"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/button4"
android:layout_toLeftOf="#+id/button5"
android:onClick="#string/_onclick"
android:text="#string/_9" />
<Button
android:id="#+id/button7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button6"
android:layout_alignParentBottom="true"
android:layout_marginBottom="16dp"
android:onClick="#string/_onclick"
android:text="#string/_" />
<Button
android:id="#+id/button8"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#id/button7"
android:layout_alignLeft="#+id/button11"
android:layout_toLeftOf="#+id/button9"
android:onClick="#string/_onclick"
android:text="#string/_1" />
<Button
android:id="#+id/button10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/button7"
android:layout_toRightOf="#+id/button1"
android:onClick="#string/_onclick"
android:text="#string/_3" />
<Button
android:id="#+id/button6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/button7"
android:layout_alignLeft="#+id/button4"
android:onClick="#string/_onclick"
android:text="#string/_jam" />
<Button
android:id="#+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button12"
android:layout_alignBottom="#+id/button12"
android:layout_alignLeft="#+id/button5"
android:onClick="#string/_onclick"
android:text="#string/_menha" />
<Button
android:id="#+id/button5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button16"
android:layout_alignBottom="#+id/button16"
android:layout_alignLeft="#+id/button3"
android:onClick="#string/_onclick"
android:text="#string/_zarb" />
<Button
android:id="#+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/button5"
android:layout_alignParentRight="true"
android:layout_marginRight="15dp"
android:onClick="#string/_onclick"
android:text="#string/_taghsim" />
<Button
android:id="#+id/button14"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/button11"
android:layout_toLeftOf="#+id/button12"
android:onClick="#string/_onclick"
android:text="#string/_7" />
<Button
android:id="#+id/button15"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/button13"
android:layout_alignLeft="#+id/button12"
android:layout_toLeftOf="#+id/button13"
android:onClick="#string/_onclick"
android:text="#string/_8" />
<Button
android:id="#+id/button9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/button7"
android:layout_alignLeft="#id/button12"
android:layout_alignTop="#id/button10"
android:layout_toLeftOf="#+id/button10"
android:onClick="#string/_onclick"
android:text="#string/_2" />
<Button
android:id="#+id/button2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button3"
android:layout_alignBottom="#+id/button3"
android:layout_toLeftOf="#+id/button3"
android:layout_toRightOf="#+id/button1"
android:onClick="#string/_onclick"
android:text="#string/c" />
<Button
android:id="#+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/button14"
android:layout_alignLeft="#+id/button14"
android:layout_alignParentBottom="false"
android:layout_alignParentRight="false"
android:layout_alignRight="#+id/button15"
android:layout_alignWithParentIfMissing="false"
android:layout_centerInParent="false"
android:onClick="#string/_onclick"
android:text="#string/ce" />
<Button
android:id="#+id/button17"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button7"
android:layout_alignBottom="#+id/button7"
android:layout_alignRight="#+id/button10"
android:layout_toRightOf="#+id/button9"
android:onClick="#string/_onclick"
android:text="#string/_dot" />
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button1"
android:layout_alignParentTop="true"
android:layout_marginLeft="17dp"
android:layout_marginTop="59dp"
android:textSize="20sp"
tools:ignore="SpUsage" />
<Button
android:id="#+id/button13"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#id/button10"
android:layout_alignBaseline="#+id/button12"
android:layout_alignBottom="#+id/button12"
android:layout_alignLeft="#+id/button16"
android:layout_below="#id/button16"
android:layout_toLeftOf="#id/button4"
android:onClick="#string/_onclick"
android:text="#string/_6" />
<Button
android:id="#+id/Button01"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/button8"
android:layout_toLeftOf="#+id/button17"
android:onClick="#string/_onclick"
android:text="#string/_0" />
<Button
android:id="#+id/button12"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/button10"
android:layout_toLeftOf="#+id/button13"
android:onClick="#string/_onclick"
android:text="#string/_5" />
this is screenshot of my problems:
http://i39.tinypic.com/xm04lz.jpg
http://i42.tinypic.com/ibgmk3.jpg
please help me how can i solve the problem

Why are you making your life so difficult? Stop this alignment madness and use LinearLayouts. Create a LinearLayout and put the 5 rows of buttons inside, with each row as LinearLayout. Then use the layout_weight parameter to add them the same (or desired) width.
Example:
<LinearLayout>
<LinearLayout>
Button Button Button Button
</LinearLayout>
<LinearLayout>
Button Button Button Button
</LinearLayout>
....
</LinearLayout>

How to align the buttons on correct position in android

I want to align the buttons as shown bellow,
for this, I used relative layout. But The buttons are not fit to correct position due to the buttons relations with others. I don't know other possible methods for this.. Please Help me if there another suitable methods for this arrangement of buttons..

You can design as much as u want
First of all make one
Large size Relative layout
add four buttons to that layout at each cornet of layout.
then add button to exact middle of two corner buttons
try 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="300dp"
android:layout_height="300dp"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:background="#00F" >
<RelativeLayout
android:id="#+id/relativeLayout1"
android:layout_width="180dp"
android:layout_height="180dp"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:background="#FFF" >
<Button
android:id="#+id/button1"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="Button" />
<Button
android:id="#+id/button2"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:text="Button" />
<Button
android:id="#+id/button3"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:text="Button" />
<Button
android:id="#+id/button4"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="Button" />
<Button
android:id="#+id/button5"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:text="Button" />
<Button
android:id="#+id/button6"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="Button" />
<Button
android:id="#+id/button7"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:text="Button" />
<Button
android:id="#+id/button8"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignTop="#+id/button7"
android:text="Button" />
</RelativeLayout>
<Button
android:id="#+id/button9"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="Button" />
<Button
android:id="#+id/button10"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:text="Button" />
<Button
android:id="#+id/button11"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:text="Button" />
<Button
android:id="#+id/button12"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:text="Button" />
<Button
android:id="#+id/button13"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="Button" />
<Button
android:id="#+id/button14"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:text="Button" />
<Button
android:id="#+id/button15"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/button14"
android:layout_alignParentRight="true"
android:text="Button" />
<Button
android:id="#+id/button16"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="Button" />
</RelativeLayout>
</RelativeLayout>

I worked on your solution and made a similar looking layout. But I couldn't get exactly what you are looking for, bcoz your Image sample is some what in a square manner whereas the device screen is in rectangular shape.
Anyway try this out,
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<RelativeLayout android:id="#+id/first_layout"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<Button android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" 1"/>
<Button android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" 2"
android:layout_alignParentRight="true"/>
<Button android:id="#+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text=" 3"/>
<Button android:id="#+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text=" 4"/>
<Button android:id="#+id/button5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:text=" 5"/>
<Button android:id="#+id/button6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:text=" 6"/>
<Button android:id="#+id/button7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text=" 7"/>
<Button android:id="#+id/button8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
android:text=" 8"/>
<RelativeLayout android:id="#+id/first_layout"
android:paddingTop="50dip"
android:paddingBottom="50dip"
android:paddingLeft="40dip"
android:paddingRight="40dip"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<Button android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" 1"/>
<Button android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" 2"
android:layout_alignParentRight="true"/>
<Button android:id="#+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text=" 3"/>
<Button android:id="#+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text=" 4"/>
<Button android:id="#+id/button5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:text=" 5"/>
<Button android:id="#+id/button6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:text=" 6"/>
<Button android:id="#+id/button7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text=" 7"/>
<Button android:id="#+id/button8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
android:text=" 8"/>
<RelativeLayout android:id="#+id/first_layout"
android:paddingTop="50dip"
android:paddingBottom="50dip"
android:paddingLeft="40dip"
android:paddingRight="40dip"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<Button android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" 1"/>
<Button android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" 2"
android:layout_alignParentRight="true"/>
<Button android:id="#+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text=" 3"/>
<Button android:id="#+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text=" 4"/>
<Button android:id="#+id/button5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:text=" 5"/>
<Button android:id="#+id/button6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:text=" 6"/>
<Button android:id="#+id/button7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text=" 7"/>
<Button android:id="#+id/button8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
android:text=" 8"/>
</RelativeLayout>
</RelativeLayout>
</RelativeLayout>
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