extended_image
library
Functions
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cachedImageExists(String url, {String? cacheKey})
→ Future<bool>
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Check if the image exists in cache
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clampScale(double scale, double min, double max)
→ double
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clearDiskCachedImage(String url, {String? cacheKey})
→ Future<bool>
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Clear the disk cache image then return if it succeed.
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clearDiskCachedImages({Duration? duration})
→ Future<bool>
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Clear the disk cache directory then return if it succeed.
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clearGestureDetailsCache()
→ void
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clear the gesture details
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clearMemoryImageCache([String? name])
→ void
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clear all of image in memory
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defaultEditorMaskColorHandler(BuildContext context, bool pointerDown)
→ Color
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defaultSlideEndHandler({Offset offset = Offset.zero, Size pageSize = const Size(100, 100), SlideAxis pageGestureAxis = SlideAxis.both})
→ bool
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defaultSlidePageBackgroundHandler({Offset offset = Offset.zero, Size pageSize = const Size(100, 100), required Color color, SlideAxis pageGestureAxis = SlideAxis.both})
→ Color
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ExtendedImageGesturePage
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defaultSlideScaleHandler({Offset offset = Offset.zero, Size pageSize = const Size(100, 100), SlideAxis pageGestureAxis = SlideAxis.both})
→ double
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delete(Uri url, Object? body, Encoding? encoding})
→ Future<Response>
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Sends an HTTP DELETE request with the given headers to the given URL.
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doubleCompare(double value, double other, {double precision = precisionErrorTolerance})
→ int
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Compare two double-precision values.
Returns an integer that indicates whether
value is less than, equal to, or greater than other.
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doubleEqual(double value, double other)
→ bool
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Returns a value indicating whether two instances of Double represent the same value.
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get(Uri url, )
→ Future<Response>
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Sends an HTTP GET request with the given headers to the given URL.
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getCachedImageFile(String url, {String? cacheKey})
→ Future<File?>
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Get the local file of the cached image
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getCachedImageFilePath(String url, {String? cacheKey})
→ Future<String?>
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Get the local file path of the cached image
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getCachedSizeBytes()
→ Future<int>
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Get total size of cached image
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getDestinationRect({required Rect rect, required Size inputSize, double scale = 1.0, BoxFit? fit, Alignment alignment = Alignment.center, Rect? centerSlice, bool flipHorizontally = false})
→ Rect
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getMemoryImageCache([String? name])
→ ImageCache?
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get ImageCache
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getNetworkImageData(String url, {bool useCache = true, StreamController<ImageChunkEvent>? chunkEvents})
→ Future<Uint8List?>
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get network image data from cached
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head(Uri url, )
→ Future<Response>
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Sends an HTTP HEAD request with the given headers to the given URL.
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keyToMd5(String key)
→ String
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get md5 from key
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outRect(Rect rect, Rect destinationRect)
→ bool
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extended_image_gesture_utils.dart
create by zmtzawqlp on 2019/4/3
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paintExtendedImage({required Canvas canvas, required Rect rect, required Image image, String? debugImageLabel, double scale = 1.0, ColorFilter? colorFilter, BoxFit? fit, Alignment alignment = Alignment.center, Rect? centerSlice, ImageRepeat repeat = ImageRepeat.noRepeat, bool flipHorizontally = false, bool invertColors = false, FilterQuality filterQuality = FilterQuality.low, Rect? customSourceRect, BeforePaintImage? beforePaintImage, AfterPaintImage? afterPaintImage, GestureDetails? gestureDetails, EditActionDetails? editActionDetails, bool isAntiAlias = false})
→ void
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patch(Uri url, Object? body, Encoding? encoding})
→ Future<Response>
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Sends an HTTP PATCH request with the given headers and body to the given
URL.
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post(Uri url, Object? body, Encoding? encoding})
→ Future<Response>
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Sends an HTTP POST request with the given headers and body to the given URL.
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put(Uri url, Object? body, Encoding? encoding})
→ Future<Response>
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Sends an HTTP PUT request with the given headers and body to the given URL.
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read(Uri url, )
→ Future<String>
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Sends an HTTP GET request with the given headers to the given URL and
returns a Future that completes to the body of the response as a String.
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readBytes(Uri url, )
→ Future<Uint8List>
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Sends an HTTP GET request with the given headers to the given URL and
returns a Future that completes to the body of the response as a list of
bytes.
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rotateOffset(Offset input, Offset center, double angle)
→ Offset
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rotateRect(Rect rect, Offset center, double angle)
→ Rect
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roundAfter(double number, int position)
→ double
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runWithClient<R>(R body(), Client clientFactory(), {ZoneSpecification? zoneSpecification})
→ R
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Runs
body in its own Zone with the Client returned by clientFactory
set as the default Client.
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typeOf<T>()
→ Type
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get type from T
Typedefs
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AfterPaintImage
= void Function(Canvas canvas, Rect rect, Image image, Paint paint)
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Call after paint image
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BeforePaintImage
= bool Function(Canvas canvas, Rect rect, Image image, Paint paint)
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rect is render size
if return true, it will not paint original image,
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BuildGestureImage
= Widget Function(GestureDetails gestureDetails)
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Build Gesture Image
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CanMovePage
= bool Function(GestureDetails? gestureDetails)
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Whether we can move to previous/next page only for Image
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CanScaleImage
= bool Function(GestureDetails? details)
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Whether should scale image
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CanScrollPage
= bool Function(GestureDetails? gestureDetails)
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Whether we can scroll page
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DoubleTap
= void Function(ExtendedImageGestureState state)
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Double tap call back
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EditActionDetailsIsChanged
= void Function(EditActionDetails? details)
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Call when EditActionDetails is changed
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EditorMaskColorHandler
= Color Function(BuildContext context, bool pointerDown)
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Get editor mask color base on pointerDown
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GestureDetailsIsChanged
= void Function(GestureDetails? details)
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Call when GestureDetails is changed
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GestureOffsetAnimationCallBack
= void Function(Offset offset)
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Animation call back for inertia drag
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GestureScaleAnimationCallBack
= void Function(double scale)
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Animation call back for scale
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HeroBuilderForSlidingPage
= Widget Function(Widget widget)
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Build Hero only for sliding page
the transform of sliding page must be working on Hero
so that Hero animation wouldn't be strange when pop page
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ImageBuilderForGesture
= Widget Function(Widget image)
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Build image for gesture, we can handle custom Widget about gesture
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InitDestinationRect
= void Function(Rect initialDestinationRect)
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Return initial destination rect
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InitEditorConfigHandler
= EditorConfig? Function(ExtendedImageState? state)
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Init GestureConfig when image is ready.
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InitGestureConfigHandler
= GestureConfig Function(ExtendedImageState state)
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Init GestureConfig when image is ready.
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LoadStateChanged
= Widget? Function(ExtendedImageState state)
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extended_image_typedef.dart
create by zmtzawqlp on 2019/4/3
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MergeEditRect
= Rect Function(Rect editRect)
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Return merged editRect rect
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OnSlidingPage
= void Function(ExtendedImageSlidePageState state)
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Call on sliding page
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SlideEndHandler
= bool? Function(Offset offset, {ScaleEndDetails details, ExtendedImageSlidePageState state})
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if return true ,pop page
else reset page state
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SlideOffsetHandler
= Offset? Function(Offset offset, {ExtendedImageSlidePageState state})
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customize offset of page when slide page
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SlidePageBackgroundHandler
= Color Function(Offset offset, Size pageSize)
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Build page background when slide page
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SlideScaleHandler
= double? Function(Offset offset, {ExtendedImageSlidePageState state})
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Customize scale of page when slide page
