NativeJavaBridge

The Android bridge to Java through reflection. Sync calls run on the JavaScript thread, so touch views only asynchronously.

type NativeJavaBridge = { … }

Members

batch(operations: NativeJavaBatchOperation[]): NativeJavaValue[]

Runs independent operations in one call on the JavaScript thread and returns every result in order.

batchAsync(operations: NativeJavaBatchOperation[]): NativeCancelablePromise<NativeJavaValue[]>

Runs the operations like batch, on the main thread, so views can be read safely.

className(handle: NativeJavaReference): NativeJavaValue

Reads an object's class name, as a string value.

construct(name: string, args?: NativeJavaArgument[]): NativeHandle

Calls the constructor matching args and returns a handle the scope holds until released.

Creates a key for attaching a value to objects with setAssociatedObject.

describe(name: string): NativeJavaClassDescription

Lists a class's constructors, methods and fields.

disposePlan(plan: NativeJavaCallPlan): void

Frees a call plan; using it afterwards throws.

(root: NativeJavaReference, className: string, options?: NativeViewSearchOptions): NativeCancelablePromise<NativeJavaValue[]>

Finds the views of a class under or above a view, on the main thread, like objc.findViews.

getAssociatedObject(handle: NativeJavaReference, key: NativeHandle): NativeJavaValue

Reads the value attached to an object under a key.

getClass(name: string): NativeHandle

Looks up a class by fully qualified name and returns a handle the scope holds until released.

getField(handle: NativeJavaReference, name: string): NativeJavaValue

Reads a field by name.

invoke(handle: NativeJavaReference, name: string, args?: NativeJavaArgument[]): NativeJavaValue

Calls a method on the JavaScript thread.

invokeAsync(handle: NativeJavaReference, name: string, args?: NativeJavaArgument[]): NativeCancelablePromise<NativeJavaValue>

Calls a method on the main thread and resolves with its result. Needs native.java.invokeAsync.

invokePrepared(plan: NativeJavaCallPlan, target: NativeJavaReference, args?: NativeJavaArgument[]): NativeJavaValue

Calls a prepared method on the JavaScript thread, like invoke.

(plan: NativeJavaCallPlan, target: NativeJavaReference, args?: NativeJavaArgument[]): NativeCancelablePromise<NativeJavaValue>

Calls a prepared method on the main thread and resolves with its result, like invokeAsync.

prepare(target: NativeJavaReference, name: string, parameterTypes: readonly string[]): NativeJavaCallPlan

Resolves a method by name and parameter types once, for repeated calls through invokePrepared.

release(handle: NativeJavaReference): void

Drops the plugin's hold on a handle so the loader can free the object.

respondsTo(handle: NativeJavaReference, name: string, args?: NativeJavaArgument[]): NativeJavaValue

Checks whether the object has a method name callable with args, as a boolean value.

setAssociatedObject(handle: NativeJavaReference, key: NativeHandle, value: NativeJavaArgument): void

Attaches a value to an object under a key.

setField(handle: NativeJavaReference, name: string, value: NativeJavaArgument): void

Writes a field by name.