<Button
android:id="@+id/button"
android:text="Button"
android:gravity="fill"
app:layout_rowWeight="1"
app:layout_columnWeight="1"
/>
<Button
android:id="@+id/button"
android:text="Button"
android:gravity="fill"
app:layout_rowWeight="1"
app:layout_columnWeight="1"
/>
<Button
android:id="@+id/button"
android:text="Button"
android:gravity="fill"
app:layout_rowWeight="1"
app:layout_columnWeight="1"
/>
<Button
android:id="@+id/button"
android:text="Button"
android:gravity="fill"
app:layout_rowWeight="1"
app:layout_columnWeight="1"
/>
<Button
android:id="@+id/button"
android:text="Button"
android:gravity="fill"
app:layout_rowWeight="1"
app:layout_columnWeight="1"
/>
<Button
android:id="@+id/button"
android:text="Button"
android:gravity="fill"
app:layout_rowWeight="1"
app:layout_columnWeight="1"
/>