<itemvalue="Synchronously writes a string to a file. Opens the file, writes the string in the given encoding, and closes the file. By default [writeAsStringSync] creates the file for writing and truncates the file if it already exists. In order to append the bytes to an existing file, pass [FileMode.append] as the optional mode parameter. If the [flush] argument is set to `true`, data written will be flushed to the file system before returning. This method does not transform newline characters (`"\n"`) to the platform conventional line ending (e.g. `"\r\n"` on Windows). Use [Platform.lineTerminator] to separate lines in [contents] if platform contentional line endings are needed. Throws a [FileSystemException] if the operation fails."/>
<itemvalue="The number of whole minutes spanned by this [Duration]. The returned value can be greater than 59. For example, a duration of three hours and 12 minutes has 192 minutes. ```dart const duration = Duration(hours: 3, minutes: 12); print(duration.inMinutes); 192 ```"/>
<itemvalue="Usually, this means that the Flexible widget has the wrong ancestor RenderObjectWidget. Typically, Flexible widgets are placed directly inside Flex widgets. The offending Flexible is currently placed inside a Padding widget."/>
<itemvalue="The ParentDataWidget Flexible(flex: 1) wants to apply ParentData of type FlexParentData to a RenderObject, which has been set up to accept ParentData of incompatible type BoxParentData."/>
<itemvalue="Ideal for short audio files, since it reduces the impacts on visuals or UI performance. In this mode the backend won't fire any duration, position or playback completion events. This means you are responsible for stopping the player. Also, it is not possible to use the seek method to set the audio to a specific position."/>
<itemvalue="Loads a single document from a YAML string as a [YamlDocument]. This is just like [loadYaml], except that where [loadYaml] would return a normal Dart value this returns a [YamlDocument] instead. This allows the caller to access document metadata."/>
<itemvalue="Loads a single document from a YAML string. If the string contains more than one document, this throws a [YamlException]. In future releases, this will become an [ArgumentError]. The return value is mostly normal Dart objects. However, since YAML mappings support some key types that the default Dart map implementation doesn't (NaN, lists, and maps), all maps in the returned document are [YamlMap]s. These have a few small behavioral differences from the default Map implementation; for details, see the [YamlMap] class. In future versions, maps will instead be [HashMap]s with a custom equality operation. If [sourceUrl] is passed, it's used as the URL from which the YAML originated for error reporting. If [recover] is true, will attempt to recover from parse errors and may return invalid or synthetic nodes. If [errorListener] is also supplied, its onError method will be called for each error recovered from. It is not valid to provide [errorListener] if [recover] is false."/>
<itemvalue="Returns the result of the first future in [futures] to complete. The returned future is completed with the result of the first future in [futures] to report that it is complete, whether it's with a value or an error. The results of all the other futures are discarded. If [futures] is empty, or if none of its futures complete, the returned future never completes."/>
<itemvalue="Unsubscribe from a topic. Some brokers(AWS for instance) need to have each un subscription acknowledged, use the [expectAcknowledge] parameter for this, default is false."/>
<itemvalue="expect Acknowledgement"/>
<itemvalue="expect Acknowledge"/>
<itemvalue="Re subscribe. Unsubscribes all confirmed subscriptions and re subscribes them without sending unsubscribe messages to the broker. If an unsubscribe message to the broker is needed then use [unsubscribe] followed by [subscribe] for each subscription. Can be used in auto reconnect processing to force manual re subscription of all existing confirmed subscriptions."/>
<itemvalue="Initiates a topic subscription request to the connected broker with a strongly typed data processor callback. The topic to subscribe to. The qos level the message was published at. Returns the subscription or null on failure"/>
<itemvalue="Re subscribe. Unsubscribes all confirmed subscriptions and re subscribes them without sending unsubscribe messages to the broker."/>
<itemvalue="A pointer has contacted the screen with a primary button and might begin to move. See also: [kPrimaryButton], the button this callback responds to."/>