MessageCompat

Added in 1.1.0

Kotlin |Java

class MessageCompat

Helper for accessing features in Message.

Summary

Public functions
`java-static Boolean`	`isAsynchronous(message: Message)` Returns true if the message is asynchronous, meaning that it is not subject to `Looper` synchronization barriers.
`java-static Unit`	`setAsynchronous(message: Message, async: Boolean)` Sets whether the message is asynchronous, meaning that it is not subject to `Looper` synchronization barriers.

Public functions

isAsynchronous

Added in 1.1.0

java-static fun isAsynchronous(message: Message): Boolean

Returns true if the message is asynchronous, meaning that it is not subject to Looper synchronization barriers.

Returns
`Boolean`	True if the message is asynchronous.

See also
`setAsynchronous`
`isAsynchronous`

setAsynchronous

Added in 1.1.0

java-static fun setAsynchronous(message: Message, async: Boolean): Unit

Sets whether the message is asynchronous, meaning that it is not subject to Looper synchronization barriers.

Certain operations, such as view invalidation, may introduce synchronization barriers into the Looper's message queue to prevent subsequent messages from being delivered until some condition is met. In the case of view invalidation, messages which are posted after a call to invalidate are suspended by means of a synchronization barrier until the next frame is ready to be drawn. The synchronization barrier ensures that the invalidation request is completely handled before resuming.

Asynchronous messages are exempt from synchronization barriers. They typically represent interrupts, input events, and other signals that must be handled independently even while other work has been suspended.

Note that asynchronous messages may be delivered out of order with respect to synchronous messages although they are always delivered in order among themselves. If the relative order of these messages matters then they probably should not be asynchronous in the first place. Use with caution.

Parameters
`message: Message`	message for this to set the mode.
`async: Boolean`	True if the message is asynchronous.

See also
`isAsynchronous`
`setAsynchronous`