841d1d5aab
- Add a controller to manage add/remove onScrollChangedListener to recyclerviews. - When recyclerview on each screen is scrolled to top, set actionbar elevation to 0, otherwise set it to non-zero. - When screen is moved to background, detach the listener. - Use the controller in entity header. Change-Id: Iecf194d885098c98c392810f62893ae9189f3936 Fix: 37670670 Test: make RunSettingsRoboTests
90 lines
2.8 KiB
Java
90 lines
2.8 KiB
Java
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.widget;
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import android.app.ActionBar;
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import android.app.Activity;
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import android.support.v7.widget.RecyclerView;
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import com.android.settings.SettingsRobolectricTestRunner;
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import com.android.settings.TestConfig;
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import com.android.settingslib.core.lifecycle.Lifecycle;
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import com.android.settingslib.core.lifecycle.LifecycleObserver;
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import org.junit.Before;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.mockito.Mock;
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import org.mockito.MockitoAnnotations;
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import org.robolectric.annotation.Config;
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import org.robolectric.util.ReflectionHelpers;
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import java.util.List;
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import static com.google.common.truth.Truth.assertThat;
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import static org.mockito.Matchers.any;
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import static org.mockito.Mockito.times;
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import static org.mockito.Mockito.verify;
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import static org.mockito.Mockito.when;
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@RunWith(SettingsRobolectricTestRunner.class)
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@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
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public class ActionBarShadowControllerTest {
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@Mock
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private RecyclerView mRecyclerView;
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@Mock
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private Activity mActivity;
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@Mock
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private ActionBar mActionBar;
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private Lifecycle mLifecycle;
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@Before
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public void setUp() {
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MockitoAnnotations.initMocks(this);
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when(mActivity.getActionBar()).thenReturn(mActionBar);
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mLifecycle = new Lifecycle();
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}
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@Test
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public void attachToRecyclerView_shouldAddScrollWatcherAndUpdateActionBar() {
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when(mRecyclerView.canScrollVertically(-1)).thenReturn(false);
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ActionBarShadowController.attachToRecyclerView(mActivity, mLifecycle, mRecyclerView);
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verify(mActionBar).setElevation(0);
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}
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@Test
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public void attachToRecyclerView_lifecycleChange_shouldAttachDetach() {
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ActionBarShadowController.attachToRecyclerView(mActivity, mLifecycle, mRecyclerView);
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List<LifecycleObserver> observers = ReflectionHelpers.getField(mLifecycle, "mObservers");
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assertThat(observers).hasSize(1);
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verify(mRecyclerView).addOnScrollListener(any());
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mLifecycle.onStop();
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verify(mRecyclerView).removeOnScrollListener(any());
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mLifecycle.onStart();
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verify(mRecyclerView, times(2)).addOnScrollListener(any());
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}
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}
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