DbLensControllerScope class
Menyediakan DbLensController (dan tema) ke seluruh subtree widget.
Ini satu-satunya cara menyusun UI custom di atas db_lens — widget
reusable seperti DbLensSourceList/DbLensToolbar mengambil controller
lewat DbLensControllerScope.of, bukan lewat parameter constructor,
supaya bisa dikomposisi bebas tanpa prop-drilling:
DbLensControllerScope(
controller: DbLens.createController(),
child: DbLensLayout(
sidebar: DbLensSourceList(),
body: DbLensTableView(rows: ..., columns: ...),
),
)
Kalau controller tidak diisi, scope membuat dan mengelola lifecycle-nya sendiri (initialize saat mount, dispose saat unmount). Kalau diisi, caller bertanggung jawab memanggil DbLensController.initialize sebelum widget dipasang dan men-dispose-nya sendiri.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- DbLensControllerScope
Constructors
- DbLensControllerScope({Key? key, required Widget child, DbLensController? controller, DbLensConfig config = const DbLensConfig(), DbLensThemeData? theme})
-
const
Properties
- child → Widget
-
final
- config → DbLensConfig
-
final
- controller → DbLensController?
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- theme → DbLensThemeData?
-
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< DbLensControllerScope> -
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
Static Methods
-
maybeOf(
BuildContext context) → DbLensController? - Returns null when no DbLensControllerScope ancestor exists.
-
of(
BuildContext context) → DbLensController -
Ambil DbLensController dari scope terdekat di atas
context.