ts move

lib/pages/transaction.dart

@@ -13,6 +13,60 @@ class TransactionPage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
+      appBar: AppBar(
+        title: Text(transaction.item),
+        actions: [
+          IconButton(
+              onPressed: () async {
+                final locations = await API().getLocations();
+                List<String> locationList = locations.keys.toList();
+                String? selectedLocationID;
+
+                await showDialog<int>(
+                  context: context,
+                  builder: (BuildContext context) {
+                    return AlertDialog(
+                      title: const Text('Select Location'),
+                      content: Row(
+                        mainAxisSize: MainAxisSize.min,
+                        children: [
+                          DropdownButton<String>(
+                            value: selectedLocationID,
+                            onChanged: (value) {
+                              selectedLocationID = value!;
+                            },
+                            items: locationList
+                                .map<DropdownMenuItem<String>>((locationID) {
+                              return DropdownMenuItem<String>(
+                                value: locationID,
+                                child: Text(locations[locationID]!.name),
+                              );
+                            }).toList(),
+                          ),
+                          IconButton(
+                              onPressed: () {
+                                // todo : implement
+                              },
+                              icon: const Icon(Icons.qr_code))
+                        ],
+                      ),
+                      actions: [
+                        ElevatedButton(
+                          onPressed: () async {
+                            await API().moveTransaction(
+                                transaction.uuid, selectedLocationID!);
+                            Navigator.pop<int>(context);
+                          },
+                          child: const Text('Done'),
+                        ),
+                      ],
+                    );
+                  },
+                );
+              },
+              icon: const Icon(Icons.move_up))
+        ],
+      ),
       body: Column(
         children: [
           Text("UUID: ${transaction.uuid}"),