NetworkHandler class

Detects changes in network connection status (regardless of whether the user is connected to Wi-Fi or mobile data).

Pass an onChanged event handler to execute actions upon those changes.

The child parameter is mandatory.

Ideally, you would only use NetworkHandler to wrap the child widget that needs to know the device's connection status at all times.

NetworkHandler will continuously check the device's connection status in the background every refreshTimer milliseconds (2000 by default)

Inheritance

Constructors

NetworkHandler({Key? key, required Widget child, int refreshTimer = 2000, required ValueChanged<NetworkStatus> onChanged})

Properties

child Widget
final
hashCode int
The hash code for this object.
no setterinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onChanged ValueChanged<NetworkStatus>
final
refreshTimer int
The value of refreshTimer is currently being ignored.
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _NetworkHandlerState
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}) 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