Refactoring

mobile/traque-app/src/hooks/usePickImage.jsx

@@ -0,0 +1,39 @@
+// React
+import { useState, useCallback } from 'react';
+import { Alert } from 'react-native';
+// Expo
+import { launchImageLibraryAsync, requestMediaLibraryPermissionsAsync } from 'expo-image-picker';
+
+export const usePickImage = () => {
+    const [image, setImage] = useState(null);
+
+    const pickImage = useCallback(async () => {
+        try {
+            const permissionResult = await requestMediaLibraryPermissionsAsync();
+          
+            if (permissionResult.granted === false) {
+                Alert.alert("Permission refusée", "Activez l'accès au stockage ou à la gallerie dans les paramètres.");
+                return;
+            }
+            let result = await launchImageLibraryAsync({
+                mediaTypes: ['images'],
+                allowsMultipleSelection: false,
+                allowsEditing: true,
+                aspect: [4, 3],
+                quality: 1,
+            });
+
+            if (!result.canceled && result) {
+                setImage(result.assets[0]);
+            }
+            else {
+                console.log('Image picker cancelled.');
+            }
+        } catch (error) {
+            console.error('Error picking image;', error);
+            Alert.alert('Erreur', "Une erreur est survenue lors de la sélection d'une image.");
+        }
+    }, []);
+
+    return { image, pickImage };
+};