Add voice search button in Dialer

                android:layout_width="40dp"

                android:padding="6dp"

                android:src="@drawable/ic_close_dk"

                android:clickable="true"

                android:background="?android:attr/selectableItemBackground"

                android:visibility="gone" />

            <ImageView

                android:id="@+id/voice_search_button"

                android:layout_height="40dp"

                android:layout_width="40dp"

                android:padding="6dp"

                android:src="@drawable/ic_voice_search"

                android:clickable="true"

                android:contentDescription="@string/description_start_voice_search"

                android:background="?android:attr/selectableItemBackground" />

        </LinearLayout>

        <FrameLayout

            android:layout_height="0dp"

    -->

    <string name="description_call_log_unheard_voicemail">Unheard voicemail</string>

    <!-- String describing the icon used to start a voice search -->

    <string name="description_start_voice_search">Start voice search</string>

    <!-- The string used to represent an unknown location for a phone number in the call log [CHAR LIMIT=3] -->

    <string name="call_log_empty_gecode">-</string>