BaseResizeImage class
Constructors
BaseResizeImage.asset (String assetName , {AssetBundle ?bundle , String ?package , bool cacheRawData = false , String ?imageCacheName , int ?cacheWidth , int ?cacheHeight , double ?compressionRatio , int ?maxBytes
BaseResizeImage.file (File file , {double scale = 1.0 , bool cacheRawData = false , String ?imageCacheName , int ?cacheWidth , int ?cacheHeight , double ?compressionRatio , int ?maxBytes
BaseResizeImage.memory (Uint8List bytes , {double scale = 1.0 , bool cacheRawData = false , String ?imageCacheName , int ?cacheWidth , int ?cacheHeight , double ?compressionRatio , int ?maxBytes
BaseResizeImage.network (String url , {double scale = 1.0 , bool cache = true , int retries = 3 , Duration ?timeLimit , Duration timeRetry = const Duration(milliseconds: 100) , CancellationToken ?cancelToken , String ?cacheKey , bool printError = true , Duration ?cacheMaxAge , int ?cacheWidth , int ?cacheHeight , double ?compressionRatio , int ?maxBytes , bool cacheRawData = false , String ?imageCacheName
Properties
allowUpscaling → bool
Whether the width and height parameters should be clamped to the
intrinsic width and height of the image.
final inherited
cacheRawData → bool
Whether cache raw data if you need to get raw data directly.
For example, we need raw image data to edit,
but ui.Image.toByteData() is very slow. So we cache the image
data here.
final inherited
compressionRatio → double ?
The images size will resize to original * [compressionRatio]. It's ExtendedResizeImages first pick.
The compressionRatio`s range is from 0.0 (exclusive), to
1.0 (exclusive).
it's not supported on web
final inherited
hashCode → int
The hash code for this object.
no setter inherited
height → int ?
The height the image should decode to and cache.
final inherited
imageCache → ImageCache
The ImageCache which this is stored in it.
no setter inherited
imageCacheName → String ?
The name of ImageCache , you can define custom ImageCache to store this provider.
final inherited
imageProvider → ImageProvider <Object
The ImageProvider that this class wraps.
final inherited
maxBytes → int ?
ExtendedResizeImage will compress the image to a size
that is smaller than maxBytes . The default size is 50KB.
It's actual bytes of Image, not decode bytes
it's not supported on web
final inherited
policy → ResizeImagePolicy
The policy that determines how width and height are interpreted.
final inherited
rawImageData → Uint8List
The raw data of image
no setter inherited
runtimeType → Type
A representation of the runtime type of the object.
no setter inherited
width → int ?
The width the image should decode to and cache.
final inherited
Methods
createStream (ImageConfiguration configuration → ImageStream
Called by resolve to create the ImageStream it returns.
inherited
evict ({ImageCache ?cache , ImageConfiguration configuration = ImageConfiguration.empty , bool includeLive = true → Future <bool
Evicts an entry from the image cache.
inherited
instantiateImageCodec (Uint8List data , ImageDecoderCallback decode → Future <Codec
Override this method, so that you can handle raw image data,
for example, compress
inherited
loadBuffer (_SizeAwareCacheKey key , DecoderBufferCallback decode → ImageStreamCompleter
Converts a key into an ImageStreamCompleter , and begins fetching the
image.
inherited
loadImage (_SizeAwareCacheKey key , ImageDecoderCallback decode → ImageStreamCompleter
Converts a key into an ImageStreamCompleter , and begins fetching the
image.
inherited
noSuchMethod (Invocation invocation → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
obtainCacheStatus ({required ImageConfiguration configuration , ImageErrorListener ?handleError → Future <ImageCacheStatus ?
Returns the cache location for the key that this ImageProvider creates.
inherited
obtainKey (ImageConfiguration configuration → Future <_SizeAwareCacheKey >
Converts an ImageProvider 's settings plus an ImageConfiguration to a key
that describes the precise image to load.
inherited
obtainNewKey <S > (S createNewKey (_SizeAwareCacheKey value Future <_SizeAwareCacheKey > obtainKey ()→ Future <S >
obtain new key base on old key
inherited
resolve (ImageConfiguration configuration → ImageStream
Resolves this image provider using the given configuration, returning
an ImageStream .
inherited
resolveStreamForKey (ImageConfiguration configuration , ImageStream stream , _SizeAwareCacheKey key , ImageErrorListener handleError → void
Called by resolve with the key returned by obtainKey .
inherited
toString ()
→ String
A string representation of this object.
inherited
Static Methods
buildImageProvider (dynamic value , {int ?cacheWidth , int ?cacheHeight , double ?compressionRatio , int ?maxBytes , bool cacheRawData = false , String ?imageCacheName , double scale = 1.0 , bool cache = true , int retries = 3 , Duration ?timeLimit , Duration timeRetry = const Duration(milliseconds: 100) , CancellationToken ?cancelToken , String ?cacheKey , bool printError = true , Duration ?cacheMaxAge , AssetBundle ?bundle , String ?package → ImageProvider <Object
