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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 android.support.transition;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.timeout;
import static org.mockito.Mockito.verify;
import android.app.Instrumentation;
import android.os.Bundle;
import android.support.annotation.LayoutRes;
import android.support.annotation.Nullable;
import android.support.test.InstrumentationRegistry;
import android.support.test.filters.MediumTest;
import android.support.transition.test.R;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.util.Pair;
import android.support.v4.util.SparseArrayCompat;
import android.support.v4.view.ViewCompat;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
@MediumTest
@RunWith(Parameterized.class)
public class FragmentTransitionTest extends BaseTest {
@Parameterized.Parameters
public static Object[] data() {
return new Boolean[]{
false, true
};
}
private final boolean mReorderingAllowed;
public FragmentTransitionTest(boolean reorderingAllowed) {
mReorderingAllowed = reorderingAllowed;
}
@Test
public void preconditions() {
final TransitionFragment fragment1 = TransitionFragment.newInstance(R.layout.scene2);
final TransitionFragment fragment2 = TransitionFragment.newInstance(R.layout.scene3);
showFragment(fragment1, false, null);
assertNull(fragment1.mRed);
assertNotNull(fragment1.mGreen);
assertNotNull(fragment1.mBlue);
showFragment(fragment2, true, new Pair<>(fragment1.mGreen, "green"));
assertNotNull(fragment2.mRed);
assertNotNull(fragment2.mGreen);
assertNotNull(fragment2.mBlue);
}
@Test
public void nonSharedTransition() {
final TransitionFragment fragment1 = TransitionFragment.newInstance(R.layout.scene2);
final TransitionFragment fragment2 = TransitionFragment.newInstance(R.layout.scene3);
showFragment(fragment1, false, null);
showFragment(fragment2, true, null);
verify(fragment1.mListeners.get(TransitionFragment.TRANSITION_EXIT))
.onTransitionStart(any(Transition.class));
verify(fragment1.mListeners.get(TransitionFragment.TRANSITION_EXIT), timeout(3000))
.onTransitionEnd(any(Transition.class));
verify(fragment2.mListeners.get(TransitionFragment.TRANSITION_ENTER))
.onTransitionStart(any(Transition.class));
verify(fragment2.mListeners.get(TransitionFragment.TRANSITION_ENTER), timeout(3000))
.onTransitionEnd(any(Transition.class));
popBackStack();
verify(fragment1.mListeners.get(TransitionFragment.TRANSITION_REENTER))
.onTransitionStart(any(Transition.class));
verify(fragment2.mListeners.get(TransitionFragment.TRANSITION_RETURN))
.onTransitionStart(any(Transition.class));
}
@Test
public void sharedTransition() {
final TransitionFragment fragment1 = TransitionFragment.newInstance(R.layout.scene2);
final TransitionFragment fragment2 = TransitionFragment.newInstance(R.layout.scene3);
showFragment(fragment1, false, null);
showFragment(fragment2, true, new Pair<>(fragment1.mGreen, "green"));
verify(fragment2.mListeners.get(TransitionFragment.TRANSITION_SHARED_ENTER))
.onTransitionStart(any(Transition.class));
verify(fragment2.mListeners.get(TransitionFragment.TRANSITION_SHARED_ENTER), timeout(3000))
.onTransitionEnd(any(Transition.class));
popBackStack();
verify(fragment2.mListeners.get(TransitionFragment.TRANSITION_SHARED_RETURN))
.onTransitionStart(any(Transition.class));
}
private void showFragment(final Fragment fragment, final boolean addToBackStack,
final Pair<View, String> sharedElement) {
final Instrumentation instrumentation = InstrumentationRegistry.getInstrumentation();
instrumentation.runOnMainSync(new Runnable() {
@Override
public void run() {
final FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.replace(R.id.root, fragment);
transaction.setReorderingAllowed(mReorderingAllowed);
if (sharedElement != null) {
transaction.addSharedElement(sharedElement.first, sharedElement.second);
}
if (addToBackStack) {
transaction.addToBackStack(null);
transaction.commit();
getFragmentManager().executePendingTransactions();
} else {
transaction.commitNow();
}
}
});
instrumentation.waitForIdleSync();
}
private void popBackStack() {
final Instrumentation instrumentation = InstrumentationRegistry.getInstrumentation();
instrumentation.runOnMainSync(new Runnable() {
@Override
public void run() {
getFragmentManager().popBackStackImmediate();
}
});
instrumentation.waitForIdleSync();
}
private FragmentManager getFragmentManager() {
return rule.getActivity().getSupportFragmentManager();
}
/**
* A {@link Fragment} with all kinds of {@link Transition} with tracking listeners.
*/
public static class TransitionFragment extends Fragment {
static final int TRANSITION_ENTER = 1;
static final int TRANSITION_EXIT = 2;
static final int TRANSITION_REENTER = 3;
static final int TRANSITION_RETURN = 4;
static final int TRANSITION_SHARED_ENTER = 5;
static final int TRANSITION_SHARED_RETURN = 6;
private static final String ARG_LAYOUT_ID = "layout_id";
View mRed;
View mGreen;
View mBlue;
SparseArrayCompat<Transition.TransitionListener> mListeners = new SparseArrayCompat<>();
public static TransitionFragment newInstance(@LayoutRes int layout) {
final Bundle args = new Bundle();
args.putInt(ARG_LAYOUT_ID, layout);
final TransitionFragment fragment = new TransitionFragment();
fragment.setArguments(args);
return fragment;
}
public TransitionFragment() {
setEnterTransition(createTransition(TRANSITION_ENTER));
setExitTransition(createTransition(TRANSITION_EXIT));
setReenterTransition(createTransition(TRANSITION_REENTER));
setReturnTransition(createTransition(TRANSITION_RETURN));
setSharedElementEnterTransition(createTransition(TRANSITION_SHARED_ENTER));
setSharedElementReturnTransition(createTransition(TRANSITION_SHARED_RETURN));
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
@Nullable Bundle savedInstanceState) {
return inflater.inflate(getArguments().getInt(ARG_LAYOUT_ID), container, false);
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
mRed = view.findViewById(R.id.redSquare);
mGreen = view.findViewById(R.id.greenSquare);
mBlue = view.findViewById(R.id.blueSquare);
if (mRed != null) {
ViewCompat.setTransitionName(mRed, "red");
}
if (mGreen != null) {
ViewCompat.setTransitionName(mGreen, "green");
}
if (mBlue != null) {
ViewCompat.setTransitionName(mBlue, "blue");
}
}
private Transition createTransition(int type) {
final Transition.TransitionListener listener = mock(
Transition.TransitionListener.class);
final AutoTransition transition = new AutoTransition();
transition.addListener(listener);
transition.setDuration(10);
mListeners.put(type, listener);
return transition;
}
}
}
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