R89Tag class

This widget places the advertisement by using the provided tag and route name according to predefined advertisement configurations for a screen and a tag.

Column(
      children: [
        ...,
        // will place an ad.
        R89Tag(tag: 'banner_tag'),
        ...,
        // will place an ad before or after it DescriptionContent.
        R89Tag(tag: 'banner_tag',child: DescriptionContent(),)
      ],
    )

This widget can be used in the scrollables as well, such as ListView, GridView and others. It will take an extra itemIndex parameter to make a desition whether place an ad for a given position or not.

ListView.builder(
          itemCount: 100,
          itemBuilder: (context, index) =>
              Column(
                children: [
                  ...,
                  // will place an ad if it is available for a given position.
                  R89Tag(tag: 'banner_tag', itemIndex: index,),
                  ...,
                  // will place an ad before or after it DescriptionContent.
                  // if it is available for a given position.
                  R89Tag(tag: 'banner_tag', itemIndex: index, child: DescriptionContent(),)
                ],
              ),)

In case the same screen has multiple scrollable widgets, provide a unique key to R89Tag, that uniquly identifies the scroll widget on the screen, R89Tag can run the logic of position based ad placement separate for each scrollable widget. In this sample a horizontal list is placed inside the vertical one.

CustomScrollView(
          slivers: [
            SliverList(
                delegate: SliverChildBuilderDelegate(
                    childCount: 100,
                    (context, index) => index != 3
                        // ValueKey('v_scroll') is a unique key for the vertical scroll
                        tag group
                        ? R89Tag(key: const ValueKey('v_scroll'), tag: 'infinite_scroll',
                        itemIndex: index,child: VScrollListItem())
                        : KeepAliveWrapper(
                            child: SizedBox(
                              height: 400,
                              child: ListView.builder(
                                scrollDirection: Axis.horizontal,
                                itemCount: 40,
                                // ValueKey('h_scroll') is a unique key for the horizontal
                                scroll tag group
                                itemBuilder: (context, index) => R89Tag(key: const
                                ValueKey('h_scroll'), tag: 'infinite_scroll',
                                     itemIndex: index,child: VScrollListItem()),
                              ),
                            ),
                          ))),
          ],
        )
Inheritance

Constructors

R89Tag({required String tag, Widget? child, int? itemIndex, Key? key})
tag the name of the tag, if there child optional child, if the child is provided the advertizement will be placed before or after the child according to wrapper position configuration, see the AdScreenConfig .addBanner and AdScreenConfig.addOutStream methods. itemIndex provide the item position index if the R89Tag is placed inside the scroll view so internally it will use the itemIndex to make a desition whether to place an advertisement for a given position or not. key provide a unique key to each R89Tag group if there are multiple list views on the same screen.
const

Properties

child → Widget?
final
hashCode → int
The hash code for this object.
no setterinherited
itemIndex → int?
final
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
tag → String
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
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