radio button android:inputType
<?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="match_parent">
<RadioGroup
android:id="@+id/radioUnits"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<RadioButton
android:layout_width="match_parent"
android:layout_height="75dp"
android:text="@string/M"
android:id="@+id/M"
android:layout_gravity="center_horizontal"
android:checked="true" />
<RadioButton
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/mM"
android:inputType="text"
android:id="@+id/mM"
android:layout_gravity="center_horizontal"/>
<RadioButton
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/uM"
android:id="@+id/uM"
android:layout_gravity="center_horizontal"
android:layout_weight="0.09"/>
<RadioButton
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/pM"
android:id="@+id/pM"
android:layout_gravity="center_horizontal"
android:layout_weight="0.09"/>
<RadioButton
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/cM"
android:id="@+id/cM"
android:layout_gravity="center_horizontal"
android:layout_weight="0.09"/>
</RadioGroup>
<Button
android:id="@+id/b1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Set"
android:layout_weight="0.15"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginLeft="68dp"
android:layout_marginBottom="133dp" />
<Button
android:id="@+id/b2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cancel"
android:layout_gravity="right"
android:layout_alignTop="@+id/b1"
android:layout_toRightOf="@+id/b1"
android:layout_toEndOf="@+id/b1"
android:layout_marginLeft="77dp" />
</RelativeLayout>