SaleByWalletScreen class
Main screen for wallet-based payment transactions.
Provides a comprehensive interface for processing payments through various wallet methods including QR code scanning, phone number entry, and alias-based payments. Includes amount entry, currency selection, and real-time transaction monitoring.
Features
- Multiple wallet payment methods (QR, Phone, Alias)
- Amount and currency input with validation
- Terminal selection for merchants with multiple terminals
- Real-time countdown timer for transaction completion
- Transaction status monitoring and callbacks
- Responsive UI with proper keyboard handling
Example:
SaleByWalletScreen(
  transactionId: 'txn_123',
  countDownInSeconds: 300,
  onPayCallback: (result) => handlePaymentResult(result),
  onCountComplete: (result) => handleTimeout(result),
  getTransactionFunction: (id) => fetchTransaction(id),
  log: (message) => logEvent(message),
)
- Inheritance
- 
    - Object
- DiagnosticableTree
- Widget
- StatefulWidget
- SaleByWalletScreen
 
Constructors
- SaleByWalletScreen({Key? key, required GetTransactionFunction getTransactionFunction, required OnPayCallback onPayCallback, required OnPayCallback onCountComplete, required String transactionId, required int countDownInSeconds, EventCallback? log})
- 
          
            const
Properties
- countDownInSeconds → int
- 
  
  final
- getTransactionFunction → GetTransactionFunction
- 
  
  final
- hashCode → int
- 
  The hash code for this object.
  no setterinherited
- key → Key?
- 
  Controls how one widget replaces another widget in the tree.
  finalinherited
- log → EventCallback?
- 
  
  final
- onCountComplete → OnPayCallback
- 
  
  final
- onPayCallback → OnPayCallback
- 
  
  final
- runtimeType → Type
- 
  A representation of the runtime type of the object.
  no setterinherited
- transactionId → String
- 
  
  final
Methods
- 
  createElement() → StatefulElement 
- 
  Creates a StatefulElement to manage this widget's location in the tree.
  inherited
- 
  createState() → State< SaleByWalletScreen> 
- 
  Creates the mutable state for this widget at a given location in the tree.
  override
- 
  debugDescribeChildren() → List< DiagnosticsNode> 
- 
  Returns a list of DiagnosticsNode objects describing this node's
children.
  inherited
- 
  debugFillProperties(DiagnosticPropertiesBuilder properties) → void 
- 
  Add additional properties associated with the node.
  inherited
- 
  noSuchMethod(Invocation invocation) → dynamic 
- 
  Invoked when a nonexistent method or property is accessed.
  inherited
- 
  toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode 
- 
  Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
  inherited
- 
  toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String 
- 
  A string representation of this object.
  inherited
- 
  toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String 
- 
  Returns a string representation of this node and its descendants.
  inherited
- 
  toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String 
- 
  Returns a one-line detailed description of the object.
  inherited
- 
  toStringShort() → String 
- 
  A short, textual description of this widget.
  inherited
Operators
- 
  operator ==(Object other) → bool 
- 
  The equality operator.
  inherited