ConfigurationSynchronizationUtils.java
/*
* Copyright (C) 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.test.espresso.base;
import android.app.Activity;
import android.content.Context;
import android.os.Build;
import android.util.Log;
import androidx.test.espresso.NoActivityResumedException;
import androidx.test.espresso.UiController;
import com.google.common.collect.ImmutableList;
/** Helper methods to synchronize configuration changes with onView actions. */
final class ConfigurationSynchronizationUtils {
private static final String TAG = ConfigurationSynchronizationUtils.class.getSimpleName();
private static final ImmutableList<Integer> ORIENTATION_WAIT_TIMES =
ImmutableList.of(10, 50, 100, 250, 500, 2000 /* 2sec */);
private ConfigurationSynchronizationUtils() {}
/**
* Wait for configuration changes to finish on the activity if there are any in progress.
*
* @param currentActivity the Activity to check for configuration changes in progress.
* @param uiController used to loop the main thread while configuration changes occur.
* @param appContext the application's context
*/
public static void waitForConfigurationChangesOnActivity(
Activity currentActivity, UiController uiController, Context appContext) {
// The activity's orientation can differ from application's orientation when the activity is in
// multi-window mode.
if (Build.VERSION.SDK_INT >= 24 && currentActivity.isInMultiWindowMode()) {
return;
}
int applicationOrientation = appContext.getResources().getConfiguration().orientation;
if (applicationOrientation != currentActivity.getResources().getConfiguration().orientation) {
for (long waitTime : ORIENTATION_WAIT_TIMES) {
Log.w(
TAG,
"Activity's orientation does not match the application's - waiting: "
+ waitTime
+ "ms for orientation to update.");
uiController.loopMainThreadForAtLeast(waitTime);
if (applicationOrientation
== currentActivity.getResources().getConfiguration().orientation) {
return;
}
}
throw new NoActivityResumedException(
"Timed out waiting for Activity's orientation to update.");
}
}
}