First attempt to add Doppler shift frequency calculations

app/src/main/res/layout/item_transmitter.xml

@@ -57,6 +57,34 @@
             app:layout_constraintStart_toEndOf="@+id/trans_img_uplink"
             app:layout_constraintTop_toBottomOf="@+id/trans_downlink" />
 
+        <View
+            android:id="@+id/separator"
+            android:layout_width="match_parent"
+            android:padding="15dp"
+            android:layout_marginLeft="20dp"
+            android:layout_marginRight="20dp"
+            android:layout_height="1dp"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintTop_toBottomOf="@+id/trans_uplink"
+            android:background="#333"/>
+
+        <TextView
+            android:id="@+id/trans_downlink_doppler"
+            style="@style/CardTransText"
+            android:text="@string/trans_down_lowHigh_doppler"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@+id/trans_img_downlink_doppler"
+            app:layout_constraintTop_toBottomOf="@+id/separator" />
+
+        <TextView
+            android:id="@+id/trans_uplink_doppler"
+            style="@style/CardTransText"
+            android:text="@string/trans_up_lowHigh_doppler"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toEndOf="@+id/trans_img_uplink_doppler"
+            app:layout_constraintTop_toBottomOf="@+id/trans_downlink_doppler" />
+
         <TextView
             android:id="@+id/trans_mode"
             style="@style/CardTransText"
@@ -65,7 +93,7 @@
             android:text="@string/trans_mode"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@+id/trans_uplink" />
+            app:layout_constraintTop_toBottomOf="@+id/trans_uplink_doppler" />
 
         <TextView
             android:id="@+id/trans_inverted"
@@ -114,5 +142,32 @@
             app:layout_constraintTop_toBottomOf="@+id/trans_downlink"
             app:srcCompat="@drawable/ic_arrow" />
 
+        <ImageView
+            android:id="@+id/trans_img_downlink_doppler"
+            android:layout_width="20dp"
+            android:layout_height="20dp"
+            android:contentDescription="@string/placeholder"
+            android:rotation="180"
+            app:layout_constraintBottom_toBottomOf="@+id/trans_downlink_doppler"
+            app:layout_constraintEnd_toStartOf="@+id/trans_downlink_doppler"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintHorizontal_chainStyle="packed"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/trans_downlink_doppler"
+            app:srcCompat="@drawable/ic_arrow" />
+
+        <ImageView
+            android:id="@+id/trans_img_uplink_doppler"
+            android:layout_width="20dp"
+            android:layout_height="20dp"
+            android:contentDescription="@string/placeholder"
+            app:layout_constraintBottom_toBottomOf="@+id/trans_uplink_doppler"
+            app:layout_constraintEnd_toStartOf="@+id/trans_uplink_doppler"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintHorizontal_chainStyle="packed"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/trans_downlink_doppler"
+            app:srcCompat="@drawable/ic_arrow" />
+
     </androidx.constraintlayout.widget.ConstraintLayout>
 </com.google.android.material.card.MaterialCardView>

app/src/main/res/values-ru/strings.xml

@@ -92,6 +92,10 @@
     <string name="trans_up_lowHigh">Восход.: %.4f - %.4f MHz</string>
     <string name="trans_down_low">Нисход.: %.4f MHz</string>
     <string name="trans_down_lowHigh">Нисход.: %.4f - %.4f MHz</string>
+    <string name="trans_up_low_doppler">Восход.: %.4f MHz</string>
+    <string name="trans_up_lowHigh_doppler">Восход.: %.4f - %.4f MHz</string>
+    <string name="trans_down_low_doppler">Нисход.: %.4f MHz</string>
+    <string name="trans_down_lowHigh_doppler">Нисход.: %.4f - %.4f MHz</string>
 
     <string name="info_swipe_text">Проведите по экрану вниз, чтобы обновить список пролетов
         для выбранных спутников</string>

app/src/main/res/values/strings.xml

@@ -78,6 +78,8 @@
     <string name="no_mode">Mode: null</string>
     <string name="no_uplink">Uplink: null</string>
     <string name="no_downlink">Downlink: null</string>
+    <string name="no_uplink_doppler">Current uplink: null</string>
+    <string name="no_downlink_doppler">Current downlink: null</string>
     <string name="no_trans">No transceivers found for this satellite</string>
 
     <string name="err_no_permissions">Missing permissions</string>
@@ -108,6 +110,10 @@
     <string name="trans_up_lowHigh">Uplink: %.4f - %.4f MHz</string>
     <string name="trans_down_low">Downlink: %.4f MHz</string>
     <string name="trans_down_lowHigh">Downlink: %.4f - %.4f MHz</string>
+    <string name="trans_up_low_doppler">Current uplink: %.4f MHz</string>
+    <string name="trans_up_lowHigh_doppler">Current uplink: %.4f - %.4f MHz</string>
+    <string name="trans_down_low_doppler">Current downlink: %.4f MHz</string>
+    <string name="trans_down_lowHigh_doppler">Current downlink: %.4f - %.4f MHz</string>
 
     <string name="info_swipe_text">
         Swipe the screen to refresh the list of passes for selected satellites</string>