litho-core/com.facebook.litho/ComponentTree/Builder/layoutThreadLooper

layoutThreadLooper

open fun layoutThreadLooper(looper: Looper): ComponentTree.Builder

Specify the looper to use for running layouts on. Note that in rare cases layout must run on the UI thread. For example, if you rotate the screen, we must measure on the UI thread. If you don't specify a Looper here, the Components default Looper will be used.