onPlatformMessage property
- @Deprecated('Migrate to ChannelBuffers.setListener instead. ' 'This feature was deprecated after v3.11.0-20.0.pre.')
Deprecated. Migrate to ChannelBuffers.setListener instead.
Called whenever this window receives a message from a platform-specific plugin.
Accessing this value returns the value contained in the
PlatformDispatcher singleton, so instead of getting it from here, you
should consider getting it from
WidgetsBinding.instance.platformDispatcher
instead (or, when
WidgetsBinding
isn't available, from PlatformDispatcher.instance). The
reason this value forwards to the PlatformDispatcher is to provide
convenience for applications that only use a single main window.
The name
parameter determines which plugin sent the message. The data
parameter is the payload and is typically UTF-8 encoded JSON but can be
arbitrary data.
Message handlers must call the function given in the callback
parameter.
If the handler does not need to respond, the handler should pass null to
the callback.
The framework invokes this callback in the same zone in which the callback was set.
Implementation
@Deprecated(
'Migrate to ChannelBuffers.setListener instead. '
'This feature was deprecated after v3.11.0-20.0.pre.',
)
PlatformMessageCallback? get onPlatformMessage => platformDispatcher.onPlatformMessage;
- @Deprecated('Migrate to ChannelBuffers.setListener instead. ' 'This feature was deprecated after v3.11.0-20.0.pre.')
Implementation
@Deprecated(
'Migrate to ChannelBuffers.setListener instead. '
'This feature was deprecated after v3.11.0-20.0.pre.',
)
set onPlatformMessage(PlatformMessageCallback? callback) {
platformDispatcher.onPlatformMessage = callback;
}