DataReader class abstract

Implementers

Constructors

DataReader()

Properties

hashCode → int
The hash code for this object.
no setterinherited
platformFormats → List<PlatformFormat>
Returns list of platform specific format identifiers for this item.
no setter
rawReader → DataReaderItem?
If this reader is backed by raw DataReaderItem returns it.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

canProvide(DataFormat<Object> format) → bool
Returns true value for data format is possibly available in this reader.
getFile(FileFormat? format, AsyncValueChanged<DataReaderFile> onFile, {ValueChanged<Object>? onError, bool allowVirtualFiles = true, bool synthesizeFilesFromURIs = true}) → ReadProgress?
Loads file for the given format.
getFormats(List<DataFormat<Object>> allFormats) → List<DataFormat<Object>>
Returns subset of allFormats that this reader can provide, sorted according to priority set by source application.
getSuggestedName() → Future<String?>
Returns suggested file name for the contents (if available). This is the best guess that can be provided from reader. You may be able to get more accurate name after receiving the DataReaderFile through getFile.
getValue<T extends Object>(ValueFormat<T> format, AsyncValueChanged<T?> onValue, {ValueChanged<Object>? onError}) → ReadProgress?
Loads the value for the given format.
getVirtualFileReceiver({FileFormat? format}) → Future<VirtualFileReceiver?>
Returns virtual file receiver for given format or null if virtual data for the format is not available. If format is not specified returns receiver for format with highest priority (if any).
hasValue(DataFormat<Object> format) → bool
isSynthesized(DataFormat<Object> format) → bool
Returns whether value for given format is being synthesized. On Windows DIB images are accessible as PNG (converted on demand), same thing is done on macOS for TIFF images.
isVirtual(DataFormat<Object> format) → bool
When true, data in this format is virtual. It means it might not be readily available and may be generated on demand. This is true for example when dropping images from iPhone (they will be downloaded after dropped).
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

forItemInfo(DataReaderItemInfo info) → DataReader
Creates data reader from provided item info.