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wrap in popScope to prevent error on back button press

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This commit is contained in:
Robert Malikowski
2026-07-17 11:42:54 +02:00
parent 4427a05f6b
commit 59eb3d7945
1 changed files with 72 additions and 69 deletions
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lib/new-ui/pages/buy_sell/buy_sell_amount_page.dart
+72 -69
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@@ -55,78 +55,81 @@ class _NewBuySellAmountPageState extends State<NewBuySellAmountPage> {
@override
Widget build(BuildContext context) {
return Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.vertical(top: Radius.circular(18)),
gradient: LinearGradient(
colors: [
Theme.of(context).colorScheme.surface,
Theme.of(context).colorScheme.surfaceDim,
],
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
return PopScope(
onPopInvokedWithResult: (didPop, result) => Navigator.of(context, rootNavigator: true).pop(),
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.vertical(top: Radius.circular(18)),
gradient: LinearGradient(
colors: [
Theme.of(context).colorScheme.surface,
Theme.of(context).colorScheme.surfaceDim,
],
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
),
),
),
child: SafeArea(
child: Column(
children: [
Observer(
builder: (_) => ModalTopBar(
title: _pageTitle,
bottomText: !_customAmountMode || widget.buySellViewModel.maxFiatAmount == null
? null
: "${S.of(context).up_to} ~${widget.buySellViewModel.maxFiatAmount} ${widget.buySellViewModel.fiatCurrency.title}",
leadingIcon: Icon(Icons.close),
onLeadingPressed: Navigator.of(context, rootNavigator: true).pop,
child: SafeArea(
child: Column(
children: [
Observer(
builder: (_) => ModalTopBar(
title: _pageTitle,
bottomText: !_customAmountMode || widget.buySellViewModel.maxFiatAmount == null
? null
: "${S.of(context).up_to} ~${widget.buySellViewModel.maxFiatAmount} ${widget.buySellViewModel.fiatCurrency.title}",
leadingIcon: Icon(Icons.close),
onLeadingPressed: Navigator.of(context, rootNavigator: true).pop,
),
),
),
Expanded(
child: Observer(
builder: (_) => AnimatedSwitcher(
duration: Duration(milliseconds: 300),
child: _customAmountMode
? BuySellCustomAmountInput(
fiatCurrency: widget.buySellViewModel.fiatCurrency,
cryptoCurrency: widget.buySellViewModel.cryptoCurrency,
cryptoAmount: widget.buySellViewModel.cryptoAmount,
isLoading: _isLoadingPaymentMethods,
hasCurrencySelector: widget.buySellViewModel.hasMultipleCurrencies,
onCurrencySelectorPressed: () => selectCryptoCurrency(context),
controller: customInputController,
focusNode: customInputFocusNode,
onContinuePressed: () {
navigateToProviders(context);
},
onChanged: (amount) =>
widget.buySellViewModel.changeFiatAmount(amount: amount),
)
: BuySellDefaultAmountSelector(
key: ValueKey(0),
defaultAmounts: widget.buySellViewModel.defaultAmounts,
fiatCurrency: widget.buySellViewModel.fiatCurrency,
currentAmount: widget.buySellViewModel.fiatAmount,
hasCurrencySelector: widget.buySellViewModel.hasMultipleCurrencies,
onCurrencySelectorPressed: () => selectCryptoCurrency(context),
cryptoCurrency: widget.buySellViewModel.cryptoCurrency,
isLoading: _isLoadingPaymentMethods,
mode: widget.buySellViewModel.mode,
onSelected: (amount) async {
if (amount == null) {
// this resets the rate and prevents showing 0 usd = 0.something btc
await widget.buySellViewModel.changeFiatAmount(amount: "");
setState(() {
_customAmountMode = true;
});
customInputFocusNode.requestFocus();
} else {
await widget.buySellViewModel.changeFiatAmount(amount: amount);
Expanded(
child: Observer(
builder: (_) => AnimatedSwitcher(
duration: Duration(milliseconds: 300),
child: _customAmountMode
? BuySellCustomAmountInput(
fiatCurrency: widget.buySellViewModel.fiatCurrency,
cryptoCurrency: widget.buySellViewModel.cryptoCurrency,
cryptoAmount: widget.buySellViewModel.cryptoAmount,
isLoading: _isLoadingPaymentMethods,
hasCurrencySelector: widget.buySellViewModel.hasMultipleCurrencies,
onCurrencySelectorPressed: () => selectCryptoCurrency(context),
controller: customInputController,
focusNode: customInputFocusNode,
onContinuePressed: () {
navigateToProviders(context);
}
},
),
),
))
],
},
onChanged: (amount) =>
widget.buySellViewModel.changeFiatAmount(amount: amount),
)
: BuySellDefaultAmountSelector(
key: ValueKey(0),
defaultAmounts: widget.buySellViewModel.defaultAmounts,
fiatCurrency: widget.buySellViewModel.fiatCurrency,
currentAmount: widget.buySellViewModel.fiatAmount,
hasCurrencySelector: widget.buySellViewModel.hasMultipleCurrencies,
onCurrencySelectorPressed: () => selectCryptoCurrency(context),
cryptoCurrency: widget.buySellViewModel.cryptoCurrency,
isLoading: _isLoadingPaymentMethods,
mode: widget.buySellViewModel.mode,
onSelected: (amount) async {
if (amount == null) {
// this resets the rate and prevents showing 0 usd = 0.something btc
await widget.buySellViewModel.changeFiatAmount(amount: "");
setState(() {
_customAmountMode = true;
});
customInputFocusNode.requestFocus();
} else {
await widget.buySellViewModel.changeFiatAmount(amount: amount);
navigateToProviders(context);
}
},
),
),
))
],
),
),
),
);