Patterns

BackPressEvent -> HandledIndicator

Dispatch a back-button event down a registration tree to let the deepest active handler intercept the action.

Tuple2<NavigationStack, NavigationAction> -> NavigationStack

Compute the next navigation configuration stack by applying a transition function to the current stack and a navigation command.

InstanceKey -> RetainedInstance

Retrieve a cached object instance by key from a registry that survives host component destruction and recreation.

ParentLifecycleEvent -> ChildLifecycleEvent

Propagate lifecycle state changes from a parent container down to active nested child contexts.

String -> TriggerQuery

Monitor cursor text entries for special prefix characters to expose a query event and generate atomic, immutable token elements.

RichTextState -> RichTextState

Record sequential snapshots of rich text spans and paragraph structures to support rich undo/redo operations.

RichTextState -> String

Serialize rich text styles and tree nodes back into standard Markdown syntax.

String -> RichTextState

Parse Markdown text into inline style spans and block-level paragraph objects inside a text state.

RichTextState -> String

Serialize styled text span and paragraph trees into standard HTML markup strings.

String -> RichTextState

Parse HTML markup strings into styled span and structured paragraph hierarchies within a text state.

ComponentContext + List<Plugin> -> ConfiguredComponent

Chain independent, pluggable behavioral actions across a UI component's configuration and rendering lifecycle phases.

CacheKey -> ImageAsset?

Resolve cached assets by querying a primary LRU memory cache, falling back to a weak-reference map before initiating a remote fetch.

JsonString -> TypedObject

Coerce mismatched JSON types (e.g., String to Int, empty String to null) during deserialization instead of throwing type adapter exceptions.

(Intent, ActivityResultCallback) -> Void

Route Activity results to inline callbacks by automatically generating unique request codes and matching them on intercept.

CurrentState -> OptimalControlInputs

Iterate state predictions and project outputs onto control constraints using the alternating direction method of multipliers (ADMM) to resolve bound constraints via cheap, element-wise clipping.

SystemDynamicsAndWeights -> PreFactoredCholeskyMatrices

Pre-factor and cache the quadratic program's KKT matrix offline to bypass runtime matrix inversion on-device.

List<SecurityDatasource> -> UnifiedDirectedGraph

Merge extracted security event nodes from multiple disparate log sources into a single unified graph canvas.

List<EntityNode> -> DirectedGraph

Assemble a structured sequence of entity nodes and their implicit behaviors into a queryable directed graph.

RawSecurityLog -> List<EntityNode>

Parse raw security event logs into a stream of discrete structured entity node representations.

LinearNetwork -> FrequencyResponse

Compute the mathematical transfer function of a linear network to determine its exact frequency and phase response.

SampleStream -> EnvelopeLevelStream

Calculate the running root-mean-square amplitude of an input signal over a sliding window to capture perceptual loudness.

OscillatorState -> Sample

Generate fundamental waveforms by band-limiting high-frequency harmonics to prevent aliasing distortion.