This package is part of the
support library which
is no longer maintained.
The support library has been superseded by AndroidX
which is part of Jetpack.
We recommend using the AndroidX libraries in all new projects. You should also consider
migrating existing projects to AndroidX.
Forces an AdapterView to ensure that the data matching a provided data matcher is loaded into the
current view hierarchy.
AdapterDataLoaderAction (Matcher<? extends
EspressoOptional< Integer> atPosition,
View> getConstraints ()
A mechanism for ViewActions to specify what type of views they can operate on.
A ViewAction can demand that the view passed to perform meets certain constraints. For
example it may want to ensure the view is already in the viewable physical screen of the device
or is of a certain type.
that will be tested prior to calling perform.
String getDescription ()
Returns a description of the view action. The description should not be overly long and should
fit nicely in a sentence like: "performing %description% action on view with id ..."
void perform (
Performs this action on the given view.
UiController: the controller to use to interact with the UI.
View: the view to act upon. never null.