{% setvar book_path %}/reference/kotlin/androidx/_book.yaml{% endsetvar %} {% include "_shared/_reference-head-tags.html" %}

MainThread


Denotes that the annotated method should only be called on the main thread. If the annotated element is a class, then all methods in the class should be called on the main thread.

Example:

@MainThread
public void deliverResult(D data) { ... }

Note: Ordinarily, an app's main thread is also the UI thread. However, under special circumstances, an app's main thread might not be its UI thread; for more information, see Thread annotations.

See also
UiThread

Summary

Public constructors

android

Public constructors

MainThread

MainThread()