navigation isue resolved

app/modules/Dashboard/components/PredictionCard.tsx

@@ -126,11 +126,14 @@ export const PredictionCard: React.FC<PredictionCardProps> = ({
       {/* Header Section */}
       <View style={styles.header}>
         <View style={styles.patientInfo}>
-          <Text style={styles.patientName}>
+          <Text style={styles.patientName} numberOfLines={1}>
             {prediction.patientdetails.Name || 'Unknown Patient'}
           </Text>
-          <Text style={styles.patientDetails}>
+          <Text style={styles.patientDetails} numberOfLines={1} ellipsizeMode="head">
-            {prediction.patientdetails.PatID} • {prediction.patientdetails.PatAge} • {prediction.patientdetails.PatSex}
+            {prediction.patientdetails.PatID}
+          </Text>
+          <Text style={styles.patientDetailsSecondary}>
+            {prediction.patientdetails.PatAge} • {prediction.patientdetails.PatSex}
           </Text>
         </View>
         
@@ -255,7 +258,12 @@ const styles = StyleSheet.create({
     borderRadius: theme.borderRadius.large,
     padding: theme.spacing.md,
     marginBottom: theme.spacing.md,
-    ...theme.shadows.primary,
+    // Custom shadow properties to ensure visibility
+    shadowColor: '#000000',
+    shadowOffset: { width: 0, height: 2 },
+    shadowOpacity: 0.1,
+    shadowRadius: 4,
+    elevation: 3,
   },
 
   header: {
@@ -278,6 +286,12 @@ const styles = StyleSheet.create({
   },
 
   patientDetails: {
+    fontSize: theme.typography.fontSize.bodySmall,
+    fontFamily: theme.typography.fontFamily.medium,
+    color: theme.colors.textPrimary,
+    marginBottom: theme.spacing.xs,
+  },
+  patientDetailsSecondary: {
     fontSize: theme.typography.fontSize.bodySmall,
     fontFamily: theme.typography.fontFamily.regular,
     color: theme.colors.textSecondary,

app/modules/Dashboard/components/PredictionsList.tsx

@@ -5,7 +5,7 @@
  * Copyright (c) Spurrin Innovations. All rights reserved.
  */
 
-import React from 'react';
+import React, { useMemo, useCallback } from 'react';
 import {
   View,
   Text,
@@ -44,8 +44,14 @@ interface PredictionsListProps {
  * - Loading states
  * - Error handling
  * - Empty states
+ * 
+ * Performance Optimizations:
+ * - Both datasets (with/without feedback) are pre-loaded upfront
+ * - Tab switching is instant - no filtering needed
+ * - React.memo prevents unnecessary re-renders
+ * - useCallback optimizes event handlers
  */
-export const PredictionsList: React.FC<PredictionsListProps> = ({
+export const PredictionsList: React.FC<PredictionsListProps> = React.memo(({
   onPredictionPress,
 }) => {
   const {
@@ -57,6 +63,14 @@ export const PredictionsList: React.FC<PredictionsListProps> = ({
     refreshPredictions,
   } = usePredictions();
 
+  // Performance optimization: Memoize feedback count calculation
+  const feedbackCount = useMemo(() => {
+    if (activeTab === 'with-feedback') {
+      return currentPredictions.filter(p => p.feedbacks?.length > 0).length;
+    }
+    return 0;
+  }, [activeTab, currentPredictions]);
+
   // ============================================================================
   // UTILITY FUNCTIONS
   // ============================================================================
@@ -66,18 +80,18 @@ export const PredictionsList: React.FC<PredictionsListProps> = ({
    * 
    * Purpose: Switch between radiologist feedback status tabs
    */
-  const handleTabSwitch = (tab: 'with-feedback' | 'without-feedback') => {
+  const handleTabSwitch = useCallback((tab: 'with-feedback' | 'without-feedback') => {
     switchTab(tab);
-  };
+  }, [switchTab]);
 
   /**
    * Handle Prediction Press
    * 
    * Purpose: Handle when a prediction card is pressed
    */
-  const handlePredictionPress = (prediction: PredictionData) => {
+  const handlePredictionPress = useCallback((prediction: PredictionData) => {
     onPredictionPress(prediction);
-  };
+  }, [onPredictionPress]);
 
   /**
    * Render Tab Button
@@ -150,15 +164,15 @@ export const PredictionsList: React.FC<PredictionsListProps> = ({
   // RENDER
   // ============================================================================
 
-  // Debug logging to see current state
+  // Performance optimization: Only log when needed (development mode)
-  console.log('🔍 PredictionsList render debug:');
+  // Note: Tab switching is now instant due to pre-loaded datasets
-  console.log('Active tab:', activeTab);
+  if (__DEV__ && currentPredictions.length > 0) {
-  console.log('Current predictions count:', currentPredictions.length);
+    console.log('🔍 PredictionsList render debug:', {
-  console.log('Current predictions sample:', currentPredictions.slice(0, 2).map(p => ({
+      activeTab,
-    id: p.id,
+      count: currentPredictions.length,
-    has_feedback: p.has_provided_feedback,
+      performance: 'Instant tab switching - datasets pre-loaded'
-    feedbacks_count: p.feedbacks?.length || 0
+    });
-  })));
+  }
 
   return (
     <View style={styles.container}>
@@ -184,7 +198,7 @@ export const PredictionsList: React.FC<PredictionsListProps> = ({
                   {currentPredictions.length} prediction{currentPredictions.length !== 1 ? 's' : ''} found
                   {activeTab === 'with-feedback' && (
                     <Text style={styles.feedbackCount}>
-                      {' • '}{currentPredictions.filter(p => p.feedbacks && p.feedbacks.length > 0).length} with feedback
+                      {' • '}{feedbackCount} with feedback
                     </Text>
                   )}
                 </Text>
@@ -192,6 +206,7 @@ export const PredictionsList: React.FC<PredictionsListProps> = ({
             )}
             
                          {/* Horizontal Scrolling Predictions */}
+             <View style={styles.listWrapper}>
                <FlatList
                  data={currentPredictions}
                  renderItem={({ item }) => (
@@ -204,7 +219,7 @@ export const PredictionsList: React.FC<PredictionsListProps> = ({
                  )}
                  keyExtractor={(item) => item.id.toString()}
                  contentContainerStyle={styles.listContainer}
-              showsHorizontalScrollIndicator={true}
+                 showsHorizontalScrollIndicator={false}
                  showsVerticalScrollIndicator={false}
                  horizontal={true}
                  scrollEnabled={true}
@@ -218,12 +233,13 @@ export const PredictionsList: React.FC<PredictionsListProps> = ({
                  }
                  ListEmptyComponent={renderEmptyState}
                />
+             </View>
           </>
         )}
       </View>
     </View>
   );
-};
+});
 
 // ============================================================================
 // STYLES
@@ -271,10 +287,19 @@ const styles = StyleSheet.create({
 
   contentContainer: {
     flex: 1,
+    minHeight: 0,
+ 
+  },
+
+  listWrapper: {
+    // flex: 1,
+    minHeight: 0, // Prevent flex overflow
+    marginBottom: theme.spacing.md, // Add bottom margin for shadow visibility
   },
 
   listContainer: {
-    padding: theme.spacing.md,
+    padding: 2,
+    paddingBottom: theme.spacing.xxl, // Increased bottom padding for shadow visibility
     alignItems: 'flex-start',
   },
 
@@ -366,7 +391,9 @@ const styles = StyleSheet.create({
 
   predictionCardWrapper: {
     marginRight: theme.spacing.md,
+    marginBottom: theme.spacing.md, // Add bottom margin for shadow visibility
     width: 280, // Uniform width for all cards
+    // Height will be determined by content naturally
   },
 });
 

app/modules/Dashboard/hooks/usePredictions.ts

@@ -53,12 +53,14 @@ export const usePredictions = () => {
   const activeTab = useAppSelector(selectActiveTab);
   const searchQuery = useAppSelector(selectSearchQuery);
   
+  // Performance optimization: Load both datasets upfront
   const predictionsWithFeedback = useAppSelector(selectPredictionsWithFeedback);
   const predictionsWithoutFeedback = useAppSelector(selectPredictionsWithoutFeedback);
   
   const isLoading = useAppSelector(selectIsLoading);
   const error = useAppSelector(selectError);
   
+  // Performance optimization: Direct dataset selection - no filtering needed
   const currentPredictions = useAppSelector(selectCurrentPredictions);
   const currentLoadingState = useAppSelector(selectCurrentLoadingState);
   const currentError = useAppSelector(selectCurrentError);
@@ -74,6 +76,7 @@ export const usePredictions = () => {
    * Switch Active Tab
    * 
    * Purpose: Change between feedback tabs
+   * Performance: Instant switching - no filtering needed as both datasets are pre-loaded
    */
   const switchTab = useCallback((tab: PredictionTabType) => {
     dispatch(setActiveTab(tab));
@@ -132,12 +135,14 @@ export const usePredictions = () => {
 
   /**
    * Auto-fetch data when component mounts or token changes
+   * Performance optimization: Load both datasets upfront to eliminate tab switching delays
    */
   useEffect(() => {
     if (!authToken) return;
     
-    // Only fetch if we don't have any predictions yet
+    // Performance optimization: Always fetch if either dataset is empty
-    if (predictionsWithFeedback.length === 0 && predictionsWithoutFeedback.length === 0) {
+    // This ensures both datasets are loaded upfront for instant tab switching
+    if (predictionsWithFeedback.length === 0 || predictionsWithoutFeedback.length === 0) {
       dispatch(fetchAllPredictions(authToken));
     }
   }, [authToken, predictionsWithFeedback.length, predictionsWithoutFeedback.length, dispatch]);

app/modules/Dashboard/redux/predictionsSlice.ts

@@ -218,9 +218,16 @@ export const selectError = (state: { predictions: PredictionsState }) => state.p
 
 export const selectCurrentPredictions = (state: { predictions: PredictionsState }) => {
   const { activeTab, predictionsWithFeedback, predictionsWithoutFeedback } = state.predictions;
+  // Performance optimization: Direct dataset selection instead of filtering
   return activeTab === 'with-feedback' ? predictionsWithFeedback : predictionsWithoutFeedback;
 };
 
+// Performance optimization: Pre-computed selectors for instant tab switching
+export const selectPredictionsForTab = (state: { predictions: PredictionsState }, tab: PredictionTabType) => {
+  const { predictionsWithFeedback, predictionsWithoutFeedback } = state.predictions;
+  return tab === 'with-feedback' ? predictionsWithFeedback : predictionsWithoutFeedback;
+};
+
 export const selectCurrentLoadingState = (state: { predictions: PredictionsState }) => {
   return state.predictions.isLoading;
 };

app/modules/Dashboard/screens/DashboardScreen.tsx

@@ -638,9 +638,8 @@ export const DashboardScreen: React.FC<DashboardScreenProps> = ({
                 // Navigate to FeedbackDetailScreen with required parameters
              
                 
-                navigation.navigate('Patients', {
+                navigation.navigate('FeedbackDetail',
-                  screen: 'FeedbackDetail',
+                  {
-                  params: {
                     patientId: prediction.patid,
                     patientName: prediction.patientdetails.Name || 'Unknown Patient',
                     seriesNumber: prediction.prediction.processing_info.filename || 'Unknown Series',
@@ -685,7 +684,7 @@ export const DashboardScreen: React.FC<DashboardScreenProps> = ({
                       console.log('Feedback submitted, refreshing dashboard...');
                     }
                   }
-                });
+                );
                 
                 console.log('Navigation successful to FeedbackDetailScreen');
               } catch (error) {

app/theme/shadows.ts

@@ -38,7 +38,7 @@ export const shadows = {
   },
   primary: {
     shadowColor: colors.primary,
-    shadowOffset: { width: 0, height: 4 },
+    shadowOffset: { width: 0, height: 2 },
     shadowOpacity: 0.3,
     shadowRadius: 8,
     elevation: 6,