BitmapDescriptor class abstract
Defines a bitmap image. For a marker, this class can be used to set the image of the marker icon. For a ground overlay, it can be used to set the image to place on the surface of the earth.
Use the BitmapDescriptor.asset or AssetMapBitmap.create to create a BitmapDescriptor image from an asset. Use the BitmapDescriptor.bytes or BytesMapBitmap to create a BitmapDescriptor image from a list of bytes. Use the BitmapDescriptor.defaultMarker to create a BitmapDescriptor for a default marker icon. Use the BitmapDescriptor.defaultMarkerWithHue to create a BitmapDescriptor for a default marker icon with a hue value.
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toJson(
) → Object - Convert the object to a Json format.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
asset(
ImageConfiguration configuration, String assetName, {AssetBundle? bundle, String? package, double? width, double? height, double? imagePixelRatio, MapBitmapScaling bitmapScaling = MapBitmapScaling.auto}) → Future< AssetMapBitmap> - Creates a BitmapDescriptor from an asset using AssetMapBitmap.
-
bytes(
Uint8List byteData, {double? imagePixelRatio, double? width, double? height, MapBitmapScaling bitmapScaling = MapBitmapScaling.auto}) → BytesMapBitmap - Creates a BitmapDescriptor from byte data using BytesMapBitmap.
-
defaultMarkerWithHue(
double hue) → BitmapDescriptor - Creates a BitmapDescriptor that refers to a colorization of the default marker image. For convenience, there is a predefined set of hue values. See e.g. hueYellow.
-
fromAssetImage(
ImageConfiguration configuration, String assetName, {AssetBundle? bundle, String? package, bool mipmaps = true}) → Future< BitmapDescriptor> - Creates a BitmapDescriptor from an asset image.
-
fromBytes(
Uint8List byteData, {Size? size}) → BitmapDescriptor -
Creates a BitmapDescriptor using an array of bytes that must be encoded
as PNG.
On the web, the
sizeparameter represents the physical size of the bitmap, regardless of the actual resolution of the encoded PNG. This helps the browser to render High-DPI images at the correct size.sizeis not required (and ignored, if passed) in other platforms. -
fromJson(
Object json) → BitmapDescriptor - The inverse of .toJson.
Constants
- defaultMarker → const BitmapDescriptor
- Creates a BitmapDescriptor that refers to the default marker image.
- hueAzure → const double
- Convenience hue value representing azure.
- hueBlue → const double
- Convenience hue value representing blue.
- hueCyan → const double
- Convenience hue value representing cyan.
- hueGreen → const double
- Convenience hue value representing green.
- hueMagenta → const double
- Convenience hue value representing magenta.
- hueOrange → const double
- Convenience hue value representing orange.
- hueRed → const double
- Convenience hue value representing red.
- hueRose → const double
- Convenience hue value representing rose.
- hueViolet → const double
- Convenience hue value representing violet.
- hueYellow → const double
- Convenience hue value representing yellow.