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An Espresso ViewAction that changes the orientation of the screen
package de.foo.bar.baz;
/*
* The MIT License (MIT)
*
* Copyright (c) 2015 - Nathan Barraille
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
import android.app.Activity;
import android.content.Context;
import android.content.ContextWrapper;
import android.content.pm.ActivityInfo;
import android.support.test.espresso.UiController;
import android.support.test.espresso.ViewAction;
import android.view.View;
import android.view.ViewGroup;
import org.hamcrest.Matcher;
import static android.support.test.espresso.matcher.ViewMatchers.isRoot;
/**
* An Espresso ViewAction that changes the orientation of the screen. Use like this:
* <code>onView(isRoot()).perform(orientationPortrait());</code> or this: <code>onView(isRoot()).perform(orientationLandscape());</code>
*/
public class OrientationChangeAction implements ViewAction {
private final int orientation;
private OrientationChangeAction(int orientation) {
this.orientation = orientation;
}
public static ViewAction orientationLandscape() {
return new OrientationChangeAction(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
public static ViewAction orientationPortrait() {
return new OrientationChangeAction(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
@Override
public Matcher<View> getConstraints() {
return isRoot();
}
@Override
public String getDescription() {
return "change orientation to " + orientation;
}
@Override
public void perform(UiController uiController, View view) {
uiController.loopMainThreadUntilIdle();
Activity activity = getActivity(view.getContext());
if (activity == null && view instanceof ViewGroup) {
ViewGroup v = (ViewGroup) view;
int c = v.getChildCount();
for (int i = 0; i < c && activity == null; ++i) {
activity = getActivity(v.getChildAt(i).getContext());
}
}
activity.setRequestedOrientation(orientation);
}
public Activity getActivity(Context context) {
while (context instanceof ContextWrapper) {
if (context instanceof Activity) {
return (Activity) context;
}
context = ((ContextWrapper) context).getBaseContext();
}
return null;
}
}
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