Update example app on Flutter plugin (#220)

* Update example app on Flutter plugin * Expose `empty_wallet_cache` through Dart bindings (#224)
2025-12-22 16:34:23 +01:00 · 2024-05-24 12:12:29 +03:00
parent c7b46314f4
commit 7b1b78a2d9
38 changed files with 1821 additions and 167 deletions
--- a/packages/flutter/example/lib/routes/home/widgets/send_payment/send_payment_dialog.dart
+++ b/packages/flutter/example/lib/routes/home/widgets/send_payment/send_payment_dialog.dart
@@ -0,0 +1,133 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_breez_liquid/flutter_breez_liquid.dart';
+
+class SendPaymentDialog extends StatefulWidget {
+  final String? barcodeValue;
+  final BindingLiquidSdk liquidSdk;
+
+  const SendPaymentDialog({super.key, required this.liquidSdk, this.barcodeValue});
+
+  @override
+  State<SendPaymentDialog> createState() => _SendPaymentDialogState();
+}
+
+class _SendPaymentDialogState extends State<SendPaymentDialog> {
+  final TextEditingController invoiceController = TextEditingController();
+
+  bool paymentInProgress = false;
+
+  PrepareSendResponse? sendPaymentReq;
+
+  @override
+  void initState() {
+    super.initState();
+    if (widget.barcodeValue != null) {
+      invoiceController.text = widget.barcodeValue!;
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      title: paymentInProgress ? null : const Text("Send Payment"),
+      content: paymentInProgress
+          ? Padding(
+              padding: const EdgeInsets.symmetric(vertical: 16),
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  Text('${sendPaymentReq == null ? "Preparing" : "Sending"} payment...'),
+                  const SizedBox(height: 16),
+                  const CircularProgressIndicator(color: Colors.blue),
+                ],
+              ),
+            )
+          : sendPaymentReq != null
+              ? Padding(
+                  padding: const EdgeInsets.symmetric(vertical: 16),
+                  child: Column(
+                    mainAxisSize: MainAxisSize.min,
+                    children: [
+                      Text(
+                        'Please confirm that you agree to the payment fee of ${sendPaymentReq!.feesSat} sats.',
+                      ),
+                    ],
+                  ),
+                )
+              : TextField(
+                  decoration: InputDecoration(
+                    label: const Text("Enter Invoice"),
+                    suffixIcon: IconButton(
+                      icon: const Icon(Icons.paste, color: Colors.blue),
+                      onPressed: () async {
+                        final clipboardData = await Clipboard.getData('text/plain');
+                        if (clipboardData != null && clipboardData.text != null) {
+                          invoiceController.text = clipboardData.text!;
+                        }
+                      },
+                    ),
+                  ),
+                  controller: invoiceController,
+                ),
+      actions: paymentInProgress
+          ? []
+          : [
+              TextButton(
+                child: const Text("CANCEL"),
+                onPressed: () {
+                  Navigator.of(context).pop();
+                },
+              ),
+              sendPaymentReq == null
+                  ? TextButton(
+                      onPressed: () async {
+                        try {
+                          setState(() => paymentInProgress = true);
+                          PrepareSendRequest prepareSendReq =
+                              PrepareSendRequest(invoice: invoiceController.text);
+                          PrepareSendResponse req =
+                              await widget.liquidSdk.prepareSendPayment(req: prepareSendReq);
+                          debugPrint("PrepareSendResponse for  ${req.invoice}, fees: ${req.feesSat}");
+                          setState(() => sendPaymentReq = req);
+                        } catch (e) {
+                          final errMsg = "Error preparing payment: $e";
+                          debugPrint(errMsg);
+                          if (context.mounted) {
+                            Navigator.pop(context);
+                            final snackBar = SnackBar(content: Text(errMsg));
+                            ScaffoldMessenger.of(context).showSnackBar(snackBar);
+                          }
+                        } finally {
+                          setState(() => paymentInProgress = false);
+                        }
+                      },
+                      child: const Text("OK"),
+                    )
+                  : TextButton(
+                      onPressed: () async {
+                        try {
+                          setState(() => paymentInProgress = true);
+                          SendPaymentResponse resp = await widget.liquidSdk.sendPayment(req: sendPaymentReq!);
+                          debugPrint("Paid ${resp.txid}");
+                          if (context.mounted) {
+                            Navigator.pop(context);
+                          }
+                        } catch (e) {
+                          final errMsg = "Error sending payment: $e";
+                          debugPrint(errMsg);
+                          if (context.mounted) {
+                            Navigator.pop(context);
+                            final snackBar = SnackBar(content: Text(errMsg));
+                            ScaffoldMessenger.of(context).showSnackBar(snackBar);
+                          }
+                        } finally {
+                          setState(() => paymentInProgress = false);
+                        }
+                      },
+                      child: const Text("CONFIRM"),
+                    ),
+            ],
+    );
+  }
+}