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/*
* Copyright (C) 2017 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 com.android.launcher3.util.rule;
import android.app.Activity;
import android.app.Application;
import android.app.Application.ActivityLifecycleCallbacks;
import android.content.Intent;
import android.os.Bundle;
import android.support.test.InstrumentationRegistry;
import com.android.launcher3.Launcher;
import com.android.launcher3.Workspace.ItemOperator;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;
import java.util.concurrent.Callable;
/**
* Test rule to get the current Launcher activity.
*/
public class LauncherActivityRule implements TestRule {
private Launcher mActivity;
@Override
public Statement apply(Statement base, Description description) {
return new MyStatement(base);
}
public Launcher getActivity() {
return mActivity;
}
public Callable<Boolean> itemExists(final ItemOperator op) {
return new Callable<Boolean>() {
@Override
public Boolean call() throws Exception {
Launcher launcher = getActivity();
if (launcher == null) {
return false;
}
return launcher.getWorkspace().getFirstMatch(op) != null;
}
};
}
/**
* Starts the launcher activity in the target package.
*/
public void startLauncher() {
InstrumentationRegistry.getInstrumentation().startActivitySync(getHomeIntent());
}
public void returnToHome() {
InstrumentationRegistry.getTargetContext().startActivity(getHomeIntent());
InstrumentationRegistry.getInstrumentation().waitForIdleSync();
}
public static Intent getHomeIntent() {
return new Intent(Intent.ACTION_MAIN)
.addCategory(Intent.CATEGORY_HOME)
.setPackage(InstrumentationRegistry.getTargetContext().getPackageName())
.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
}
private class MyStatement extends Statement implements ActivityLifecycleCallbacks {
private final Statement mBase;
public MyStatement(Statement base) {
mBase = base;
}
@Override
public void evaluate() throws Throwable {
Application app = (Application)
InstrumentationRegistry.getTargetContext().getApplicationContext();
app.registerActivityLifecycleCallbacks(this);
try {
mBase.evaluate();
} finally {
app.unregisterActivityLifecycleCallbacks(this);
}
}
@Override
public void onActivityCreated(Activity activity, Bundle bundle) {
if (activity instanceof Launcher) {
mActivity = (Launcher) activity;
}
}
@Override
public void onActivityStarted(Activity activity) { }
@Override
public void onActivityResumed(Activity activity) { }
@Override
public void onActivityPaused(Activity activity) { }
@Override
public void onActivityStopped(Activity activity) { }
@Override
public void onActivitySaveInstanceState(Activity activity, Bundle bundle) { }
@Override
public void onActivityDestroyed(Activity activity) {
if (activity == mActivity) {
mActivity = null;
}
}
}
}
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