CachingAssetBundle class

An AssetBundle that permanently caches string and structured resources that have been fetched.

Strings (for loadString and loadStructuredData) are decoded as UTF-8. Data that is cached is cached for the lifetime of the asset bundle (typically the lifetime of the application).

Binary resources (from load) are not cached.

Implemented by




hashCode int
The hash code for this object. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited


evict(String key) → void
If this is a caching asset bundle, and the given key describes a cached asset, then evict the asset from the cache so that the next time it is loaded, the cache will be reread from the asset bundle.
loadString(String key, { bool cache: true }) Future<String>
Retrieve a string from the asset bundle. [...]
loadStructuredData<T>(String key, Future<T> parser(String value)) Future<T>
Retrieve a string from the asset bundle, parse it with the given function, and return the function's result. [...]
load(String key) Future<ByteData>
Retrieve a binary resource from the asset bundle as a data stream. [...]
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
toString() String
Returns a string representation of this object.


operator ==(other) bool
The equality operator. [...]