Text below RadioButtons

I don't think the plain RadioButton widget can do that by default. You'll need to do one of a few things to achieve that effect. You can create your own RadioButton view class by combining a RadioButton and a TextView so that you have complete control over where the items are in relation to each other. Or you can skip making it a view and just use two elements in your layout, 1 TextView and one RadioButton(with no text set to it).

Simpler solution with default RadioButton:

<RelativeLayout
      android:layout_width="wrap_content"
      android:layout_height="wrap_content">

      <RadioButton
          android:id="@+id/radio7"
          android:layout_centerHorizontal="true"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content" />

      <TextView
          android:id="@+id/tvDays7"
          android:text="7 looong days"
          android:layout_centerHorizontal="true"
          android:layout_below="@id/radio7"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content" />

  </RelativeLayout>

This is the solution to set the Text below RadioButtons:

This code android:drawablePadding="-20dp" is not needed.

You add your own selector drawable here: android:drawableTop="@drawable/your_Image_Here".

<RadioGroup
        android:id="@+id/RadioGroup1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:orientation="horizontal" >

        <RadioButton
            android:id="@+id/Icon1"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:background="@android:color/transparent"
            android:button="@android:color/transparent"
            android:checked="true"
            android:drawablePadding="-20dp"
            android:drawableTop="@drawable/your_Image_Here"
            android:gravity="center"
            android:text="@string/your_Text_Here"
            android:textColor="@color/icons_color" />

        <RadioButton
            android:id="@+id/Icon2"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:background="@android:color/transparent"
            android:button="@android:color/transparent"
            android:drawablePadding="-20dp"
            android:drawableTop="@drawable/your_Image_Here"
            android:gravity="center"
            android:text="@string/your_Text_Here"
            android:textColor="@color/icons_color" />
    </RadioGroup>