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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.wear.widget;
+
+import static org.junit.Assert.assertEquals;
+
+import android.app.Activity;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.filters.MediumTest;
+import android.support.test.rule.ActivityTestRule;
+import android.support.test.runner.AndroidJUnit4;
+import android.support.wear.test.R;
+import android.support.wear.widget.util.WakeLockRule;
+import android.view.View;
+import android.widget.FrameLayout;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.concurrent.atomic.AtomicReference;
+
+@MediumTest
+@RunWith(AndroidJUnit4.class)
+public class WearableLinearLayoutManagerTest {
+
+ @Rule
+ public final WakeLockRule wakeLock = new WakeLockRule();
+
+ @Rule
+ public final ActivityTestRule<WearableRecyclerViewTestActivity> mActivityRule =
+ new ActivityTestRule<>(WearableRecyclerViewTestActivity.class, true, true);
+
+ WearableLinearLayoutManager mWearableLinearLayoutManagerUnderTest;
+
+ @Before
+ public void setUp() throws Throwable {
+ Activity activity = mActivityRule.getActivity();
+ CurvingLayoutCallback mCurvingCallback = new CurvingLayoutCallback(activity);
+ mCurvingCallback.setOffset(10);
+ mWearableLinearLayoutManagerUnderTest =
+ new WearableLinearLayoutManager(mActivityRule.getActivity(), mCurvingCallback);
+ }
+
+ @Test
+ public void testRoundOffsetting() throws Throwable {
+ ((CurvingLayoutCallback) mWearableLinearLayoutManagerUnderTest.getLayoutCallback())
+ .setRound(true);
+ final AtomicReference<WearableRecyclerView> wrvReference = new AtomicReference<>();
+ mActivityRule.runOnUiThread(new Runnable() {
+ @Override
+ public void run() {
+ WearableRecyclerView wrv =
+ (WearableRecyclerView) mActivityRule.getActivity().findViewById(R.id.wrv);
+ // Set a fixed layout so that the test adapts to different device screens.
+ wrv.setLayoutParams(new FrameLayout.LayoutParams(390, 390));
+ }
+ });
+
+ InstrumentationRegistry.getInstrumentation().waitForIdleSync();
+
+ mActivityRule.runOnUiThread(new Runnable() {
+ @Override
+ public void run() {
+ WearableRecyclerView wrv =
+ (WearableRecyclerView) mActivityRule.getActivity().findViewById(R.id.wrv);
+ wrv.setLayoutManager(mWearableLinearLayoutManagerUnderTest);
+ wrvReference.set(wrv);
+ }
+ });
+
+ InstrumentationRegistry.getInstrumentation().waitForIdleSync();
+ WearableRecyclerView wrv = wrvReference.get();
+
+ View child1 = wrv.getChildAt(0);
+ View child2 = wrv.getChildAt(1);
+ View child3 = wrv.getChildAt(2);
+ View child4 = wrv.getChildAt(3);
+ View child5 = wrv.getChildAt(4);
+
+ // The left position and the translation of the child is modified if the screen is round.
+ // Check if the 5th child is not null as some devices will not be able to display 5 views.
+ assertEquals(136, child1.getLeft());
+ assertEquals(-6.3, child1.getTranslationY(), 0.1);
+
+ assertEquals(91, child2.getLeft(), 1);
+ assertEquals(-15.21, child2.getTranslationY(), 0.1);
+
+ assertEquals(58, child3.getLeft(), 1);
+ assertEquals(-13.5, child3.getTranslationY(), 0.1);
+
+ assertEquals(42, child4.getLeft(), 1);
+ assertEquals(-4.5, child4.getTranslationY(), 0.1);
+
+ if (child5 != null) {
+ assertEquals(43, child5.getLeft(), 1);
+ assertEquals(6.7, child5.getTranslationY(), 0.1);
+ }
+ }
+
+ @Test
+ public void testStraightOffsetting() throws Throwable {
+ ((CurvingLayoutCallback) mWearableLinearLayoutManagerUnderTest.getLayoutCallback())
+ .setRound(
+ false);
+ final AtomicReference<WearableRecyclerView> wrvReference = new AtomicReference<>();
+ mActivityRule.runOnUiThread(new Runnable() {
+ @Override
+ public void run() {
+ WearableRecyclerView wrv =
+ (WearableRecyclerView) mActivityRule.getActivity().findViewById(R.id.wrv);
+ wrv.setLayoutManager(mWearableLinearLayoutManagerUnderTest);
+ wrvReference.set(wrv);
+ }
+ });
+ InstrumentationRegistry.getInstrumentation().waitForIdleSync();
+ WearableRecyclerView wrv = wrvReference.get();
+
+ View child1 = wrv.getChildAt(0);
+ View child2 = wrv.getChildAt(1);
+ View child3 = wrv.getChildAt(2);
+ View child4 = wrv.getChildAt(3);
+ View child5 = wrv.getChildAt(4);
+
+ // The left position and the translation of the child is not modified if the screen is
+ // straight. Check if the 5th child is not null as some devices will not be able to display
+ // 5 views.
+ assertEquals(0, child1.getLeft());
+ assertEquals(0.0f, child1.getTranslationY(), 0);
+
+ assertEquals(0, child2.getLeft());
+ assertEquals(0.0f, child2.getTranslationY(), 0);
+
+ assertEquals(0, child3.getLeft());
+ assertEquals(0.0f, child3.getTranslationY(), 0);
+
+ assertEquals(0, child4.getLeft());
+ assertEquals(0.0f, child4.getTranslationY(), 0);
+
+ if (child5 != null) {
+ assertEquals(0, child5.getLeft());
+ assertEquals(0.0f, child5.getTranslationY(), 0);
+ }
+ }
+}