OutlinedLoadingButton class
带有加载状态表示的OutlinedButton实现
isLoading表示当前是否处于正在加载状态，如果值为true则将会显示加载中图标和加载提示文本，响应点击事件受loadingPressable影响。
如果loadingIcon为空则会使用默认的CircularProgressIndicator。
如果loadingLabel为空则不显示提示。
如果isLoading值为false则为非加载状态，仅显示child，且可响应点击事件。
loadingPressable表示在isLoading状态时是否可以响应点击事件，包括onPressed和onLongPress，默认为false。
switchDuration为状态变化时导致的控件大小变化而执行的过渡动画时间，内部使用AnimatedSize实现，默认为kThemeAnimationDuration。
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- ButtonStyleButton
- OutlinedButton
- OutlinedLoadingButton
Constructors
-
OutlinedLoadingButton.new({Key? key, required bool isLoading, required VoidCallback? onPressed, VoidCallback? onLongPress, ValueChanged<
bool> ? onHover, ValueChanged<bool> ? onFocusChange, ButtonStyle? style, FocusNode? focusNode, bool autofocus = false, Clip? clipBehavior = Clip.none, MaterialStatesController? statesController, bool loadingPressable = false, Duration switchDuration = kThemeAnimationDuration, Widget? loadingIcon, Widget? loadingLabel, required Widget? child}) -
OutlinedLoadingButton.icon({Key? key, required bool isLoading, required VoidCallback? onPressed, VoidCallback? onLongPress, ValueChanged<
bool> ? onHover, ValueChanged<bool> ? onFocusChange, ButtonStyle? style, FocusNode? focusNode, bool? autofocus, Clip? clipBehavior, MaterialStatesController? statesController, Widget? loadingIcon, Widget? loadingLabel, bool loadingPressable = false, Duration switchDuration = kThemeAnimationDuration, required Widget icon, required Widget label}) - 参考OutlinedButton.icon
Properties
- autofocus → bool
-
True if this widget will be selected as the initial focus when no other
node in its scope is currently focused.
finalinherited
- child → Widget?
-
Typically the button's label.
finalinherited
- clipBehavior → Clip?
-
The content will be clipped (or not) according to this option.
finalinherited
- enabled → bool
-
Whether the button is enabled or disabled.
no setterinherited
- focusNode → FocusNode?
-
An optional focus node to use as the focus node for this widget.
finalinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- iconAlignment → IconAlignment?
-
Determines the alignment of the icon within the widgets such as:
finalinherited
- isSemanticButton → bool?
-
Determine whether this subtree represents a button.
finalinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
onFocusChange
→ ValueChanged<
bool> ? -
Handler called when the focus changes.
finalinherited
-
onHover
→ ValueChanged<
bool> ? -
Called when a pointer enters or exits the button response area.
finalinherited
- onLongPress → VoidCallback?
-
Called when the button is long-pressed.
finalinherited
- onPressed → VoidCallback?
-
Called when the button is tapped or otherwise activated.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- statesController → MaterialStatesController?
-
Represents the interactive "state" of this widget in terms of
a set of WidgetStates, like WidgetState.pressed and
WidgetState.focused.
finalinherited
- style → ButtonStyle?
-
Customizes this button's appearance.
finalinherited
- tooltip → String?
-
Text that describes the action that will occur when the button is pressed or
hovered over.
finalinherited
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< ButtonStyleButton> -
Creates the mutable state for this widget at a given 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
-
defaultStyleOf(
BuildContext context) → ButtonStyle -
Defines the button's default appearance.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
themeStyleOf(
BuildContext context) → ButtonStyle? -
Returns the ButtonStyle that belongs to the button's component theme.
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