How to Create Custome Key-board in android

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write code in res/xml/

<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"

    android:horizontalGap="0px"
    android:keyWidth="10%p"
    android:verticalGap="0px" >

    <Row>
        <Key
            android:codes="1"
            android:keyEdgeFlags="left"
            android:keyLabel="1" />
        <Key
            android:codes="2"
            android:keyLabel="2" />
        <Key
            android:codes="3"
            android:keyLabel="3" />
        <Key
            android:codes="4"
            android:keyLabel="4" />
        <Key
            android:codes="5"
            android:keyLabel="5" />
        <Key
            android:codes="6"
            android:keyLabel="6" />
        <Key
            android:codes="7"
            android:keyLabel="7" />
        <Key
            android:codes="8"
            android:keyLabel="8" />
        <Key
            android:codes="9"
            android:keyLabel="9" />
        <Key
            android:codes="0"
            android:keyEdgeFlags="right"
            android:keyLabel="0" />
    </Row>
    <Row>
        <Key
            android:codes="11"
            android:keyEdgeFlags="left"
            android:keyLabel="q" />
        <Key
            android:codes="12"
            android:keyLabel="w" />
        <Key
            android:codes="13"
            android:keyLabel="e" />
        <Key
            android:codes="14"
            android:keyLabel="r" />
        <Key
            android:codes="15"
            android:keyLabel="t" />
        <Key
            android:codes="16"
            android:keyLabel="y" />
        <Key
            android:codes="17"
            android:keyLabel="u" />
        <Key
            android:codes="18"
            android:keyLabel="i" />
        <Key
            android:codes="19"
            android:keyLabel="o" />
        <Key
            android:codes="10"
            android:keyEdgeFlags="right"
            android:keyLabel="p" />
    </Row>
    <Row>
        <Key
            android:codes="21"
            android:horizontalGap="5%p"
            android:keyEdgeFlags="left"
            android:keyLabel="a" />
        <Key
            android:codes="22"
            android:keyLabel="s" />
        <Key
            android:codes="23"
            android:keyLabel="d" />
        <Key
            android:codes="24"
            android:keyLabel="f" />
        <Key
            android:codes="25"
            android:keyLabel="g" />
        <Key
            android:codes="26"
            android:keyLabel="h" />
        <Key
            android:codes="27"
            android:keyLabel="j" />
        <Key
            android:codes="28"
            android:keyLabel="k" />
        <Key
            android:codes="29"
            android:keyEdgeFlags="right"
            android:keyLabel="l" />
    </Row>
    <Row>
        <Key
            android:codes="31"
            android:horizontalGap="5%p"
            android:keyEdgeFlags="left"
            android:keyLabel="z" />
        <Key
            android:codes="32"
            android:keyLabel="x" />
        <Key
            android:codes="33"
            android:keyLabel="c" />
        <Key
            android:codes="34"
            android:keyLabel="v" />
        <Key
            android:codes="35"
            android:keyLabel="b" />
        <Key
            android:codes="36"
            android:keyLabel="n" />
        <Key
            android:codes="37"
            android:keyLabel="m" />
        <Key
            android:codes="-5"
            android:isRepeatable="true"
            android:keyEdgeFlags="right"
            android:keyLabel="Back"
            android:keyWidth="15%p" />
    </Row>
    <Row android:rowEdgeFlags="bottom" >
        <Key
            android:codes="-3"
            android:horizontalGap="20%p"
            android:keyEdgeFlags="left"
            android:keyLabel="\@"
            android:keyWidth="15%p" />
        <Key
            android:codes="-2"
            android:keyLabel=".com"
            android:keyWidth="15%p" />
        <Key
            android:codes="-1"
            android:keyLabel="-"
            android:keyWidth="15%p" />
        <Key
            android:codes="-4"
            android:keyEdgeFlags="right"
            android:keyLabel="."
            android:keyWidth="15%p" />
    </Row>

</Keyboard>

 Finally,

in res/layout/main.xml