So I've found pretty simple solution, a bit tricky, but it works - just to to make relative layout with EditText for input and TextView for hint inside:
<RelativeLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Some text"
android:layout_alignParentLeft="true"
android:id="@+id/editText2"
android:layout_gravity="center"
/>
<TextView
android:id="@+id/text_hint"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:text="HintText"
android:textSize="18sp"
android:layout_marginRight="10dp"
android:textColor="#808080"
/>
</RelativeLayout>