自定义键盘xml布局

num_keyboard_nine.xml

<?xml version="1.0" encoding="utf-8"?>
<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
          android:horizontalGap="0dp"
          android:keyHeight="70dp"
          android:keyWidth="100dp"
          android:verticalGap="0dp">
    <Row>
        <Key android:codes="55" android:keyEdgeFlags="left" android:keyLabel="7"/>
        <Key android:codes="56" android:keyLabel="8"/>
        <Key android:codes="57" android:keyLabel="9"/>
        <Key android:codes="-5" android:isRepeatable="true" android:keyEdgeFlags="right"
             android:keyIcon="@mipmap/back_key"/>
    </Row>

    <Row>
        <Key android:codes="52" android:keyEdgeFlags="left" android:keyLabel="4"/>
        <Key android:codes="53" android:keyLabel="5"/>
        <Key android:codes="54" android:keyLabel="6"/>
        <Key android:codes="55006,55006" android:isRepeatable="true" android:keyEdgeFlags="right"
             android:keyLabel="清空"/>
    </Row>

    <Row>
        <Key android:codes="49" android:keyEdgeFlags="left" android:keyLabel="1"/>
        <Key android:codes="50" android:keyLabel="2"/>
        <Key android:codes="51" android:keyLabel="3"/>
        <Key android:codes="-4,-4" android:isRepeatable="true" android:keyEdgeFlags="right"
             android:keyHeight="140dp"
             android:keyLabel="确定"/>
    </Row>

    <Row>
        <Key android:codes="48" android:keyEdgeFlags="left" android:keyLabel="0"/>
        <!--使用两个codes保证字体一致-->
        <Key android:codes="-100,-100" android:isRepeatable="true" android:keyLabel="00"/>
        <Key android:codes="46" android:keyLabel="•"/>
    </Row>
</Keyboard>