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Showing content from https://api.flutter.dev/flutter/services/JSONMessageCodec-class.html below:

JSONMessageCodec class - services library

MessageCodec with UTF-8 encoded JSON messages.

Supported messages are acyclic values of these forms:

• null
• bools
• nums
• Strings
• Lists of supported values
• Maps from strings to supported values

On Android, messages are decoded using the org.json library. On iOS, messages are decoded using the NSJSONSerialization library. In both cases, the use of top-level simple messages (null, bool, num, and String) is supported (by the Flutter SDK). The decoded value will be null/nil for null, and identical to what would result from decoding a singleton JSON array with a Boolean, number, or string value, and then extracting its single element.

The type returned from decodeMessage is dynamic (not Object?), which means no type checking is performed on its return value. It is strongly recommended that the return value be immediately cast to a known type to prevent runtime errors due to typos that the type checker could otherwise catch.

Implemented types

• MessageCodec<Object?>

JSONMessageCodec.new()

Creates a MessageCodec with UTF-8 encoded JSON messages.

const

hashCode → int

The hash code for this object.

no setterinherited

runtimeType → Type

A representation of the runtime type of the object.

no setterinherited

decodeMessage(ByteData? message) → dynamic

Decodes the specified message from binary.

override

encodeMessage(Object? message) → ByteData?

Encodes the specified message in binary.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

operator ==(Object other) → bool

The equality operator.

inherited

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