BaseRecyclerViewInstrumentationTest.java revision e05fbd9cfe05496e82a3abe19e07e8745985e9a5
1d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase/* 2d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * Copyright (C) 2014 The Android Open Source Project 3d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * 4d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * Licensed under the Apache License, Version 2.0 (the "License"); 5d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * you may not use this file except in compliance with the License. 6d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * You may obtain a copy of the License at 7d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * 8d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * http://www.apache.org/licenses/LICENSE-2.0 9d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * 10d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * Unless required by applicable law or agreed to in writing, software 11d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * distributed under the License is distributed on an "AS IS" BASIS, 12d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * See the License for the specific language governing permissions and 14d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase * limitations under the License. 15d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase */ 16d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 17d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haasepackage android.support.v7.widget; 18d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 192bf89a9bae2b6110a77cf0b3754b567bb07d12a5Yigit Boyarimport android.app.Instrumentation; 20c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyarimport android.graphics.Rect; 21e05fbd9cfe05496e82a3abe19e07e8745985e9a5Yigit Boyarimport android.os.Handler; 228ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyarimport android.os.Looper; 23e2437126f0225135891544315ff72e54c7de0f59Yigit Boyarimport android.support.v4.view.ViewCompat; 24d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haaseimport android.test.ActivityInstrumentationTestCase2; 25d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haaseimport android.util.Log; 26e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyarimport android.view.LayoutInflater; 27d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haaseimport android.view.View; 28d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haaseimport android.view.ViewGroup; 29310e95e1c6dfe4f26ef594233e65e1ff83e0f1ffYigit Boyarimport android.widget.FrameLayout; 30d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haaseimport android.widget.TextView; 31d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 322bf89a9bae2b6110a77cf0b3754b567bb07d12a5Yigit Boyarimport java.lang.reflect.InvocationTargetException; 332bf89a9bae2b6110a77cf0b3754b567bb07d12a5Yigit Boyarimport java.lang.reflect.Method; 34d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haaseimport java.util.ArrayList; 3590ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyarimport java.util.HashSet; 36d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haaseimport java.util.List; 3790ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyarimport java.util.Set; 38d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haaseimport java.util.concurrent.CountDownLatch; 39d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haaseimport java.util.concurrent.TimeUnit; 4011b7cfea15306c0d6e4ed7da09f7698df01695dfYigit Boyarimport java.util.concurrent.atomic.AtomicInteger; 41da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyarimport java.util.concurrent.locks.Lock; 42da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyarimport java.util.concurrent.locks.ReentrantLock; 43e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyarimport android.support.v7.recyclerview.test.R; 44d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 45d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haaseabstract public class BaseRecyclerViewInstrumentationTest extends 46d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase ActivityInstrumentationTestCase2<TestActivity> { 47d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 48d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase private static final String TAG = "RecyclerViewTest"; 49d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 50b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar private boolean mDebug; 51b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 52b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar protected RecyclerView mRecyclerView; 53d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 548ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar protected AdapterHelper mAdapterHelper; 558ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar 567e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar Throwable mainThreadException; 577e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar 58e05fbd9cfe05496e82a3abe19e07e8745985e9a5Yigit Boyar Thread mInstrumentationThread; 59e05fbd9cfe05496e82a3abe19e07e8745985e9a5Yigit Boyar 60d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase public BaseRecyclerViewInstrumentationTest() { 61b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar this(false); 62b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 63b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 64b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public BaseRecyclerViewInstrumentationTest(boolean debug) { 658ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar super("android.support.v7.recyclerview", TestActivity.class); 66b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar mDebug = debug; 67b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 68b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 697e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar void checkForMainThreadException() throws Throwable { 707e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar if (mainThreadException != null) { 717e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar throw mainThreadException; 727e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar } 737e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar } 747e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar 75e05fbd9cfe05496e82a3abe19e07e8745985e9a5Yigit Boyar @Override 76e05fbd9cfe05496e82a3abe19e07e8745985e9a5Yigit Boyar protected void setUp() throws Exception { 77e05fbd9cfe05496e82a3abe19e07e8745985e9a5Yigit Boyar super.setUp(); 78e05fbd9cfe05496e82a3abe19e07e8745985e9a5Yigit Boyar mInstrumentationThread = Thread.currentThread(); 79e05fbd9cfe05496e82a3abe19e07e8745985e9a5Yigit Boyar } 80e05fbd9cfe05496e82a3abe19e07e8745985e9a5Yigit Boyar 81e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar void setHasTransientState(final View view, final boolean value) { 82e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar try { 83e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar runTestOnUiThread(new Runnable() { 84e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar @Override 85e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar public void run() { 86e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar ViewCompat.setHasTransientState(view, value); 87e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar } 88e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar }); 89e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar } catch (Throwable throwable) { 90e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar Log.e(TAG, "", throwable); 91e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar } 92e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar } 93e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar 942bf89a9bae2b6110a77cf0b3754b567bb07d12a5Yigit Boyar protected void enableAccessibility() 952bf89a9bae2b6110a77cf0b3754b567bb07d12a5Yigit Boyar throws NoSuchMethodException, InvocationTargetException, IllegalAccessException { 962bf89a9bae2b6110a77cf0b3754b567bb07d12a5Yigit Boyar Method getUIAutomation = Instrumentation.class.getMethod("getUiAutomation"); 972bf89a9bae2b6110a77cf0b3754b567bb07d12a5Yigit Boyar getUIAutomation.invoke(getInstrumentation()); 982bf89a9bae2b6110a77cf0b3754b567bb07d12a5Yigit Boyar } 992bf89a9bae2b6110a77cf0b3754b567bb07d12a5Yigit Boyar 1000b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar void setAdapter(final RecyclerView.Adapter adapter) throws Throwable { 1010b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar runTestOnUiThread(new Runnable() { 1020b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar @Override 1030b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar public void run() { 1040b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar mRecyclerView.setAdapter(adapter); 1050b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar } 1060b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar }); 1070b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar } 1080b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar 109e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar protected WrappedRecyclerView inflateWrappedRV() { 110e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar return (WrappedRecyclerView) 111e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar LayoutInflater.from(getActivity()).inflate(R.layout.wrapped_test_rv, 112e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar getRecyclerViewContainer(), false); 113e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar } 114e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar 1150b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar void swapAdapter(final RecyclerView.Adapter adapter, 1160b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar final boolean removeAndRecycleExistingViews) throws Throwable { 1170b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar runTestOnUiThread(new Runnable() { 1180b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar @Override 1190b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar public void run() { 120824a7db96feacf3b68f56993ed72712bc935153eYigit Boyar try { 121824a7db96feacf3b68f56993ed72712bc935153eYigit Boyar mRecyclerView.swapAdapter(adapter, removeAndRecycleExistingViews); 122824a7db96feacf3b68f56993ed72712bc935153eYigit Boyar } catch (Throwable t) { 123824a7db96feacf3b68f56993ed72712bc935153eYigit Boyar postExceptionToInstrumentation(t); 124824a7db96feacf3b68f56993ed72712bc935153eYigit Boyar } 1250b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar } 1260b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar }); 127824a7db96feacf3b68f56993ed72712bc935153eYigit Boyar checkForMainThreadException(); 1280b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar } 1290b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar 1307e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar void postExceptionToInstrumentation(Throwable t) { 131e05fbd9cfe05496e82a3abe19e07e8745985e9a5Yigit Boyar if (mInstrumentationThread == Thread.currentThread()) { 132e05fbd9cfe05496e82a3abe19e07e8745985e9a5Yigit Boyar throw new RuntimeException(t); 133e05fbd9cfe05496e82a3abe19e07e8745985e9a5Yigit Boyar } 1346e83751247c5be0211d7bffaf057431c03dfef38Yigit Boyar if (mainThreadException != null) { 1356e83751247c5be0211d7bffaf057431c03dfef38Yigit Boyar Log.e(TAG, "receiving another main thread exception. dropping.", t); 1366e83751247c5be0211d7bffaf057431c03dfef38Yigit Boyar } else { 13790ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar Log.e(TAG, "captured exception on main thread", t); 1386e83751247c5be0211d7bffaf057431c03dfef38Yigit Boyar mainThreadException = t; 1396e83751247c5be0211d7bffaf057431c03dfef38Yigit Boyar } 1406e83751247c5be0211d7bffaf057431c03dfef38Yigit Boyar 1417e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar if (mRecyclerView != null && mRecyclerView 1427e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar .getLayoutManager() instanceof TestLayoutManager) { 1437e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar TestLayoutManager lm = (TestLayoutManager) mRecyclerView.getLayoutManager(); 1447e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar // finish all layouts so that we get the correct exception 1457e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar while (lm.layoutLatch.getCount() > 0) { 1467e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar lm.layoutLatch.countDown(); 1477e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar } 1487e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar } 1497e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar } 1507e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar 1518ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar @Override 1528ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar protected void tearDown() throws Exception { 1538ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar if (mRecyclerView != null) { 1548ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar try { 1558ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar removeRecyclerView(); 1568ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } catch (Throwable throwable) { 1578ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar throwable.printStackTrace(); 1588ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 1598ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 1608ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar getInstrumentation().waitForIdleSync(); 161ca9ce7ccdccf6b6a2a81da73dd1e6425d90e4b23Yigit Boyar super.tearDown(); 162ca9ce7ccdccf6b6a2a81da73dd1e6425d90e4b23Yigit Boyar 1636e83751247c5be0211d7bffaf057431c03dfef38Yigit Boyar try { 1646e83751247c5be0211d7bffaf057431c03dfef38Yigit Boyar checkForMainThreadException(); 1656e83751247c5be0211d7bffaf057431c03dfef38Yigit Boyar } catch (Exception e) { 1666e83751247c5be0211d7bffaf057431c03dfef38Yigit Boyar throw e; 1676e83751247c5be0211d7bffaf057431c03dfef38Yigit Boyar } catch (Throwable throwable) { 168ca9ce7ccdccf6b6a2a81da73dd1e6425d90e4b23Yigit Boyar throw new Exception(throwable); 1696e83751247c5be0211d7bffaf057431c03dfef38Yigit Boyar } 1708ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 1718ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar 172c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar public Rect getDecoratedRecyclerViewBounds() { 173c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar return new Rect( 174c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar mRecyclerView.getPaddingLeft(), 175c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar mRecyclerView.getPaddingTop(), 176c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar mRecyclerView.getPaddingLeft() + mRecyclerView.getWidth(), 177c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar mRecyclerView.getPaddingTop() + mRecyclerView.getHeight() 178c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar ); 179c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar } 180c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar 181b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public void removeRecyclerView() throws Throwable { 182d7e2f2ab1d253133fa54f309e74a7ee384c33971Yigit Boyar if (mRecyclerView == null) { 183d7e2f2ab1d253133fa54f309e74a7ee384c33971Yigit Boyar return; 184d7e2f2ab1d253133fa54f309e74a7ee384c33971Yigit Boyar } 18590ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar if (!isMainThread()) { 18690ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar getInstrumentation().waitForIdleSync(); 18790ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 188b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar runTestOnUiThread(new Runnable() { 189b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar @Override 190b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public void run() { 191abd0fbfcdd5b438909f126392eca5978b5939b6dYigit Boyar try { 192abd0fbfcdd5b438909f126392eca5978b5939b6dYigit Boyar final RecyclerView.Adapter adapter = mRecyclerView.getAdapter(); 193abd0fbfcdd5b438909f126392eca5978b5939b6dYigit Boyar if (adapter instanceof AttachDetachCountingAdapter) { 194abd0fbfcdd5b438909f126392eca5978b5939b6dYigit Boyar ((AttachDetachCountingAdapter) adapter).getCounter() 195abd0fbfcdd5b438909f126392eca5978b5939b6dYigit Boyar .validateRemaining(mRecyclerView); 196abd0fbfcdd5b438909f126392eca5978b5939b6dYigit Boyar } 197abd0fbfcdd5b438909f126392eca5978b5939b6dYigit Boyar getActivity().mContainer.removeAllViews(); 198abd0fbfcdd5b438909f126392eca5978b5939b6dYigit Boyar } catch (Throwable t) { 199abd0fbfcdd5b438909f126392eca5978b5939b6dYigit Boyar postExceptionToInstrumentation(t); 20090ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 201b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 202b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar }); 20390ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar mRecyclerView = null; 204b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 205b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 206504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar void waitForAnimations(int seconds) throws InterruptedException { 207504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar final CountDownLatch latch = new CountDownLatch(2); 208504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar boolean running = mRecyclerView.mItemAnimator 209504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar .isRunning(new RecyclerView.ItemAnimator.ItemAnimatorFinishedListener() { 210504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar @Override 211504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar public void onAnimationsFinished() { 212504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar latch.countDown(); 213504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar } 214504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar }); 215504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar if (running) { 216504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar latch.await(seconds, TimeUnit.SECONDS); 217504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar } 218504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar } 219504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar 220542f1260934df280985294eaef1ec8469863281fYigit Boyar public boolean requestFocus(final View view) { 221542f1260934df280985294eaef1ec8469863281fYigit Boyar final boolean[] result = new boolean[1]; 222542f1260934df280985294eaef1ec8469863281fYigit Boyar getActivity().runOnUiThread(new Runnable() { 223542f1260934df280985294eaef1ec8469863281fYigit Boyar @Override 224542f1260934df280985294eaef1ec8469863281fYigit Boyar public void run() { 225542f1260934df280985294eaef1ec8469863281fYigit Boyar result[0] = view.requestFocus(); 226542f1260934df280985294eaef1ec8469863281fYigit Boyar } 227542f1260934df280985294eaef1ec8469863281fYigit Boyar }); 228542f1260934df280985294eaef1ec8469863281fYigit Boyar return result[0]; 229542f1260934df280985294eaef1ec8469863281fYigit Boyar } 230542f1260934df280985294eaef1ec8469863281fYigit Boyar 231b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public void setRecyclerView(final RecyclerView recyclerView) throws Throwable { 2320b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar setRecyclerView(recyclerView, true); 2330b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar } 2340b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar public void setRecyclerView(final RecyclerView recyclerView, boolean assignDummyPool) 2350b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar throws Throwable { 236e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar setRecyclerView(recyclerView, true, true); 237e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar } 238e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar public void setRecyclerView(final RecyclerView recyclerView, boolean assignDummyPool, 239e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar boolean addPositionCheckItemAnimator) 240e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar throws Throwable { 241b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar mRecyclerView = recyclerView; 2420b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar if (assignDummyPool) { 2430b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar RecyclerView.RecycledViewPool pool = new RecyclerView.RecycledViewPool() { 2440b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar @Override 2450b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar public RecyclerView.ViewHolder getRecycledView(int viewType) { 2460b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar RecyclerView.ViewHolder viewHolder = super.getRecycledView(viewType); 2470b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar if (viewHolder == null) { 2480b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar return null; 2490b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar } 2500b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar viewHolder.addFlags(RecyclerView.ViewHolder.FLAG_BOUND); 2510b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar viewHolder.mPosition = 200; 2520b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar viewHolder.mOldPosition = 300; 2530b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar viewHolder.mPreLayoutPosition = 500; 2540b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar return viewHolder; 2558da5bba529a2fe9bd2aafab28010e11ec4de93c7Yigit Boyar } 2568da5bba529a2fe9bd2aafab28010e11ec4de93c7Yigit Boyar 2570b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar @Override 2580b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar public void putRecycledView(RecyclerView.ViewHolder scrap) { 259619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar assertNull(scrap.mOwnerRecyclerView); 2600b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar super.putRecycledView(scrap); 2610b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar } 2620b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar }; 2630b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar mRecyclerView.setRecycledViewPool(pool); 2640b1059b711009601ff08354e2df6bfc45266e80aYigit Boyar } 265e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar if (addPositionCheckItemAnimator) { 266e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar mRecyclerView.addItemDecoration(new RecyclerView.ItemDecoration() { 267e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar @Override 268e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar public void getItemOffsets(Rect outRect, View view, RecyclerView parent, 269e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar RecyclerView.State state) { 270e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar RecyclerView.ViewHolder vh = parent.getChildViewHolder(view); 271e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar if (!vh.isRemoved()) { 272e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar assertNotSame("If getItemOffsets is called, child should have a valid" 273619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar + " adapter position unless it is removed : " + vh, 274e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar vh.getAdapterPosition(), RecyclerView.NO_POSITION); 275e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar } 276e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar } 277e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar }); 278e37d2e63f16bc5c2938e372238ba54679a9e578eYigit Boyar } 2798ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar mAdapterHelper = recyclerView.mAdapterHelper; 280b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar runTestOnUiThread(new Runnable() { 281b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar @Override 282b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public void run() { 283b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar getActivity().mContainer.addView(recyclerView); 284b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 285b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar }); 286b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 287b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 288310e95e1c6dfe4f26ef594233e65e1ff83e0f1ffYigit Boyar protected FrameLayout getRecyclerViewContainer() { 289310e95e1c6dfe4f26ef594233e65e1ff83e0f1ffYigit Boyar return getActivity().mContainer; 290310e95e1c6dfe4f26ef594233e65e1ff83e0f1ffYigit Boyar } 291310e95e1c6dfe4f26ef594233e65e1ff83e0f1ffYigit Boyar 292e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar public void requestLayoutOnUIThread(final View view) { 293e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar try { 294e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar runTestOnUiThread(new Runnable() { 295e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar @Override 296e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar public void run() { 297e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar view.requestLayout(); 298e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar } 299e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar }); 300e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar } catch (Throwable throwable) { 301e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar Log.e(TAG, "", throwable); 302e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar } 303b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 304b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 305e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar public void scrollBy(final int dt) { 306e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar try { 307e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar runTestOnUiThread(new Runnable() { 308e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar @Override 309e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar public void run() { 310e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar if (mRecyclerView.getLayoutManager().canScrollHorizontally()) { 311e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar mRecyclerView.scrollBy(dt, 0); 312e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar } else { 313e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar mRecyclerView.scrollBy(0, dt); 314e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar } 315b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 316e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar } 317e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar }); 318e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar } catch (Throwable throwable) { 319e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar Log.e(TAG, "", throwable); 320e2437126f0225135891544315ff72e54c7de0f59Yigit Boyar } 321d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 322d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 3238edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar void scrollToPosition(final int position) throws Throwable { 3248edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar runTestOnUiThread(new Runnable() { 3258edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar @Override 3268edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar public void run() { 3278edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar mRecyclerView.getLayoutManager().scrollToPosition(position); 3288edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar } 3298edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar }); 3308edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar } 3318edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar 3328edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar void smoothScrollToPosition(final int position) 3338edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar throws Throwable { 334619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar if (mDebug) { 335619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar Log.d(TAG, "SMOOTH scrolling to " + position); 336619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar } 3378edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar runTestOnUiThread(new Runnable() { 3388edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar @Override 3398edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar public void run() { 3408edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar mRecyclerView.smoothScrollToPosition(position); 3418edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar } 3428edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar }); 343de5f54783555fa2e778c4ed6760472a002b2589bYigit Boyar getInstrumentation().waitForIdleSync(); 344de5f54783555fa2e778c4ed6760472a002b2589bYigit Boyar Thread.sleep(200); //give scroller some time so start 3458edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar while (mRecyclerView.getLayoutManager().isSmoothScrolling() || 3468edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar mRecyclerView.getScrollState() != RecyclerView.SCROLL_STATE_IDLE) { 3478edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar if (mDebug) { 3488edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar Log.d(TAG, "SMOOTH scrolling step"); 3498edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar } 3508edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar Thread.sleep(200); 3518edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar } 352619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar if (mDebug) { 353619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar Log.d(TAG, "SMOOTH scrolling done"); 354619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar } 355504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar getInstrumentation().waitForIdleSync(); 3568edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar } 3578edcb0bdeaba6931f9d8154f0c81f57da7ddab2aYigit Boyar 358d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase class TestViewHolder extends RecyclerView.ViewHolder { 359d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 360115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar Item mBoundItem; 361d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 362d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase public TestViewHolder(View itemView) { 363d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase super(itemView); 364310e95e1c6dfe4f26ef594233e65e1ff83e0f1ffYigit Boyar itemView.setFocusable(true); 365d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 366504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar 367504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar @Override 368504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar public String toString() { 369115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar return super.toString() + " item:" + mBoundItem; 370504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar } 371d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 372da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar class DumbLayoutManager extends TestLayoutManager { 373da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar ReentrantLock mLayoutLock = new ReentrantLock(); 374da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar public void blockLayout() { 375da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar mLayoutLock.lock(); 376da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar } 377d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 378da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar public void unblockLayout() { 379da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar mLayoutLock.unlock(); 380da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar } 381da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar @Override 382da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar public void onLayoutChildren(RecyclerView.Recycler recycler, RecyclerView.State state) { 383da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar mLayoutLock.lock(); 384da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar detachAndScrapAttachedViews(recycler); 385da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar layoutRange(recycler, 0, state.getItemCount()); 386da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar if (layoutLatch != null) { 387da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar layoutLatch.countDown(); 388da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar } 389da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar mLayoutLock.unlock(); 390da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar } 391da50fde358bd3ef2edb273b3bf0265cf5e84ec6bYigit Boyar } 392e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar public class TestLayoutManager extends RecyclerView.LayoutManager { 393e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar protected CountDownLatch layoutLatch; 394d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 395d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase public void expectLayouts(int count) { 396d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase layoutLatch = new CountDownLatch(count); 397d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 398d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 399b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public void waitForLayout(long timeout, TimeUnit timeUnit) throws Throwable { 400b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar layoutLatch.await(timeout * (mDebug ? 100 : 1), timeUnit); 401d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase assertEquals("all expected layouts should be executed at the expected time", 402d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 0, layoutLatch.getCount()); 403e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar getInstrumentation().waitForIdleSync(); 404d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 405d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 406b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public void assertLayoutCount(int count, String msg, long timeout) throws Throwable { 407b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar layoutLatch.await(timeout, TimeUnit.SECONDS); 408b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar assertEquals(msg, count, layoutLatch.getCount()); 409b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 410b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 411b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public void assertNoLayout(String msg, long timeout) throws Throwable { 412b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar layoutLatch.await(timeout, TimeUnit.SECONDS); 413b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar assertFalse(msg, layoutLatch.getCount() == 0); 414b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 415b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 416b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public void waitForLayout(long timeout) throws Throwable { 4178ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar waitForLayout(timeout * (mDebug ? 10000 : 1), TimeUnit.SECONDS); 418b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 419b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 420d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase @Override 421d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase public RecyclerView.LayoutParams generateDefaultLayoutParams() { 422d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase return new RecyclerView.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 423d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase ViewGroup.LayoutParams.WRAP_CONTENT); 424d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 425d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 426d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase void assertVisibleItemPositions() { 427d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase int i = getChildCount(); 428d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase TestAdapter testAdapter = (TestAdapter) mRecyclerView.getAdapter(); 429d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase while (i-- > 0) { 430d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase View view = getChildAt(i); 431d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase RecyclerView.LayoutParams lp = (RecyclerView.LayoutParams) view.getLayoutParams(); 432115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar Item item = ((TestViewHolder) lp.mViewHolder).mBoundItem; 433b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar if (mDebug) { 434d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase Log.d(TAG, "testing item " + i); 435d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 4368ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar if (!lp.isItemRemoved()) { 4378ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar RecyclerView.ViewHolder vh = mRecyclerView.getChildViewHolder(view); 4388ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar assertSame("item position in LP should match adapter value :" + vh, 4398ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar testAdapter.mItems.get(vh.mPosition), item); 4408ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 441d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 442d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 443d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 444b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar RecyclerView.LayoutParams getLp(View v) { 445b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar return (RecyclerView.LayoutParams) v.getLayoutParams(); 446b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 447b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 448e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar protected void layoutRange(RecyclerView.Recycler recycler, int start, int end) { 449fe3996cf5af65fe11cc3ed47b67123ec267bd336Yigit Boyar assertScrap(recycler); 450b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar if (mDebug) { 451d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase Log.d(TAG, "will layout items from " + start + " to " + end); 452d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 4535ced882cabdcefbb469e332f6f73983999aad0e5Yigit Boyar int diff = end > start ? 1 : -1; 454504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar int top = 0; 4555ced882cabdcefbb469e332f6f73983999aad0e5Yigit Boyar for (int i = start; i != end; i+=diff) { 456b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar if (mDebug) { 457d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase Log.d(TAG, "laying out item " + i); 458d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 459d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase View view = recycler.getViewForPosition(i); 460b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar assertNotNull("view should not be null for valid position. " 461b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar + "got null view at position " + i, view); 462c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar if (!mRecyclerView.mState.isPreLayout()) { 463c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) view 464c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar .getLayoutParams(); 465c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar assertFalse("In post layout, getViewForPosition should never return a view " 466c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar + "that is removed", layoutParams != null 467c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar && layoutParams.isItemRemoved()); 468c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar 469b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 4708da5bba529a2fe9bd2aafab28010e11ec4de93c7Yigit Boyar assertEquals("getViewForPosition should return correct position", 4718da5bba529a2fe9bd2aafab28010e11ec4de93c7Yigit Boyar i, getPosition(view)); 472c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar addView(view); 473b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 474d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase measureChildWithMargins(view, 0, 0); 475e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar if (getLayoutDirection() == ViewCompat.LAYOUT_DIRECTION_RTL) { 476e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar layoutDecorated(view, getWidth() - getDecoratedMeasuredWidth(view), top, 477e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar getWidth(), top + getDecoratedMeasuredHeight(view)); 478e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar } else { 479e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar layoutDecorated(view, 0, top, getDecoratedMeasuredWidth(view) 480e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar , top + getDecoratedMeasuredHeight(view)); 481e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar } 482e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar 483504c54ea52c1b2aae6f8f4ae128f1dcaac7e3f6aYigit Boyar top += view.getMeasuredHeight(); 484d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 485d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 486fe3996cf5af65fe11cc3ed47b67123ec267bd336Yigit Boyar 487fe3996cf5af65fe11cc3ed47b67123ec267bd336Yigit Boyar private void assertScrap(RecyclerView.Recycler recycler) { 488e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar if (mRecyclerView.getAdapter() != null && 489e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar !mRecyclerView.getAdapter().hasStableIds()) { 490e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar for (RecyclerView.ViewHolder viewHolder : recycler.getScrapList()) { 491e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar assertFalse("Invalid scrap should be no kept", viewHolder.isInvalid()); 492e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar } 493fe3996cf5af65fe11cc3ed47b67123ec267bd336Yigit Boyar } 494fe3996cf5af65fe11cc3ed47b67123ec267bd336Yigit Boyar } 495bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar 496bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar @Override 497bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar public boolean canScrollHorizontally() { 498bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar return true; 499bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar } 500bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar 501bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar @Override 502bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar public boolean canScrollVertically() { 503bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar return true; 504bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar } 505bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar 506bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar @Override 507bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar public int scrollHorizontallyBy(int dx, RecyclerView.Recycler recycler, 508bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar RecyclerView.State state) { 509bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar return dx; 510bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar } 511bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar 512bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar @Override 513bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar public int scrollVerticallyBy(int dy, RecyclerView.Recycler recycler, 514bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar RecyclerView.State state) { 515bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar return dy; 516bb6ebab3b3b85ec20b3bc262289a2460705322f5Yigit Boyar } 517d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 518d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 519d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase static class Item { 52011b7cfea15306c0d6e4ed7da09f7698df01695dfYigit Boyar final static AtomicInteger idCounter = new AtomicInteger(0); 52111b7cfea15306c0d6e4ed7da09f7698df01695dfYigit Boyar final public int mId = idCounter.incrementAndGet(); 522d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 5232d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar int mAdapterIndex; 524d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 5252d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar final String mText; 526d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 5272d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar Item(int adapterIndex, String text) { 5282d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar mAdapterIndex = adapterIndex; 5292d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar mText = text; 530d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 5318ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar 5328ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar @Override 5338ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar public String toString() { 5348ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar return "Item{" + 5358ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar "mId=" + mId + 5362d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar ", originalIndex=" + mAdapterIndex + 5372d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar ", text='" + mText + '\'' + 5388ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar '}'; 5398ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 540d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 541d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 542e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar public class TestAdapter extends RecyclerView.Adapter<TestViewHolder> 54390ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar implements AttachDetachCountingAdapter { 544d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 54590ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar ViewAttachDetachCounter mAttachmentCounter = new ViewAttachDetachCounter(); 546d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase List<Item> mItems; 547d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 548e71a1df9b3c0e1bd3c21a1b3dd20a41790d4a950Yigit Boyar public TestAdapter(int count) { 549d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase mItems = new ArrayList<Item>(count); 550d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase for (int i = 0; i < count; i++) { 551d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase mItems.add(new Item(i, "Item " + i)); 552d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 553d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 554d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 555d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase @Override 55690ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public void onViewAttachedToWindow(TestViewHolder holder) { 55790ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar super.onViewAttachedToWindow(holder); 55890ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar mAttachmentCounter.onViewAttached(holder); 55990ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 56090ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 56190ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar @Override 56290ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public void onViewDetachedFromWindow(TestViewHolder holder) { 56390ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar super.onViewDetachedFromWindow(holder); 56490ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar mAttachmentCounter.onViewDetached(holder); 56590ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 56690ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 56790ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar @Override 56890ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public void onAttachedToRecyclerView(RecyclerView recyclerView) { 56990ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar super.onAttachedToRecyclerView(recyclerView); 57090ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar mAttachmentCounter.onAttached(recyclerView); 57190ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 57290ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 57390ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar @Override 57490ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public void onDetachedFromRecyclerView(RecyclerView recyclerView) { 57590ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar super.onDetachedFromRecyclerView(recyclerView); 57690ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar mAttachmentCounter.onDetached(recyclerView); 57790ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 57890ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 57990ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar @Override 580d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase public TestViewHolder onCreateViewHolder(ViewGroup parent, 581d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase int viewType) { 582d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase return new TestViewHolder(new TextView(parent.getContext())); 583d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 584d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 585d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase @Override 586d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase public void onBindViewHolder(TestViewHolder holder, int position) { 587619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar assertNotNull(holder.mOwnerRecyclerView); 588619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar assertEquals(position, holder.getAdapterPosition()); 589d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase final Item item = mItems.get(position); 5902d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar ((TextView) (holder.itemView)).setText(item.mText + "(" + item.mAdapterIndex + ")"); 591115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar holder.mBoundItem = item; 592d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 593d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 594888093b0a071a99d65c01116cf703d46b21f9918Yigit Boyar public Item getItemAt(int position) { 595888093b0a071a99d65c01116cf703d46b21f9918Yigit Boyar return mItems.get(position); 596888093b0a071a99d65c01116cf703d46b21f9918Yigit Boyar } 597888093b0a071a99d65c01116cf703d46b21f9918Yigit Boyar 598619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar @Override 599619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar public void onViewRecycled(TestViewHolder holder) { 600619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar super.onViewRecycled(holder); 601619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar final int adapterPosition = holder.getAdapterPosition(); 602619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar final boolean shouldHavePosition = !holder.isRemoved() && holder.isBound() && 603619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar !holder.isAdapterPositionUnknown() && !holder.isInvalid(); 604619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar String log = "Position check for " + holder.toString(); 605619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar assertEquals(log, shouldHavePosition, adapterPosition != RecyclerView.NO_POSITION); 606619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar if (shouldHavePosition) { 607619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar assertTrue(log, mItems.size() > adapterPosition); 608619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar assertSame(log, holder.mBoundItem, mItems.get(adapterPosition)); 609619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar } 610619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar } 611619ac016831a5ad75c2e0921c9036b6f030a9e63Yigit Boyar 612b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public void deleteAndNotify(final int start, final int count) throws Throwable { 613b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar deleteAndNotify(new int[]{start, count}); 614b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 615b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 616b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar /** 617b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar * Deletes items in the given ranges. 618b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar * <p> 619b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar * Note that each operation affects the one after so you should offset them properly. 620b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar * <p> 621b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar * For example, if adapter has 5 items (A,B,C,D,E), and then you call this method with 622b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar * <code>[1, 2],[2, 1]</code>, it will first delete items B,C and the new adapter will be 623b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar * A D E. Then it will delete 2,1 which means it will delete E. 624b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar */ 625b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public void deleteAndNotify(final int[]... startCountTuples) throws Throwable { 6268ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar for (int[] tuple : startCountTuples) { 6278ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar tuple[1] = -tuple[1]; 6288ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 6298ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar new AddRemoveRunnable(startCountTuples).runOnMainThread(); 630d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 631d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 632c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar @Override 633c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar public long getItemId(int position) { 634c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar return hasStableIds() ? mItems.get(position).mId : super.getItemId(position); 635c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar } 636c8b0ff5869e17a656a3a1d7fb306efa5b99fa07fYigit Boyar 6372d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar public void offsetOriginalIndices(int start, int offset) { 6382d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar for (int i = start; i < mItems.size(); i++) { 6392d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar mItems.get(i).mAdapterIndex += offset; 6402d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar } 6412d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar } 6422d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar 643e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar /** 644e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar * @param start inclusive 645e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar * @param end exclusive 646e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar * @param offset 647e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar */ 648e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar public void offsetOriginalIndicesBetween(int start, int end, int offset) { 649e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar for (int i = start; i < end && i < mItems.size(); i++) { 650e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar mItems.get(i).mAdapterIndex += offset; 651e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar } 652e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar } 653e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar 654b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public void addAndNotify(final int start, final int count) throws Throwable { 655b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar addAndNotify(new int[]{start, count}); 656b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar } 657b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 658b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar public void addAndNotify(final int[]... startCountTuples) throws Throwable { 6598ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar new AddRemoveRunnable(startCountTuples).runOnMainThread(); 6608ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 661b5f8b4fecb531aee6b359b4968409410aba90817Yigit Boyar 662cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase public void dispatchDataSetChanged() throws Throwable { 66322b6b8163d2e15eb6d0a89906854dec801945f1dYigit Boyar runTestOnUiThread(new Runnable() { 66422b6b8163d2e15eb6d0a89906854dec801945f1dYigit Boyar @Override 66522b6b8163d2e15eb6d0a89906854dec801945f1dYigit Boyar public void run() { 66622b6b8163d2e15eb6d0a89906854dec801945f1dYigit Boyar notifyDataSetChanged(); 66722b6b8163d2e15eb6d0a89906854dec801945f1dYigit Boyar } 66822b6b8163d2e15eb6d0a89906854dec801945f1dYigit Boyar }); 66922b6b8163d2e15eb6d0a89906854dec801945f1dYigit Boyar } 67022b6b8163d2e15eb6d0a89906854dec801945f1dYigit Boyar 671cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase public void changeAndNotify(final int start, final int count) throws Throwable { 6727e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar runTestOnUiThread(new Runnable() { 6737e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar @Override 6747e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar public void run() { 6757e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar notifyItemRangeChanged(start, count); 6767e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar } 6777e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar }); 6787e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar } 6797e9da1a2629b657d56e2f54abd18c6249f3be037Yigit Boyar 680cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase public void changePositionsAndNotify(final int... positions) throws Throwable { 681cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase runTestOnUiThread(new Runnable() { 682cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase @Override 683cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase public void run() { 684cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase for (int i = 0; i < positions.length; i += 1) { 685cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase TestAdapter.super.notifyItemRangeChanged(positions[i], 1); 686cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase } 687cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase } 688cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase }); 689cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase } 690cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase 6918ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar /** 6928ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar * Similar to other methods but negative count means delete and position count means add. 6938ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar * <p> 6948ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar * For instance, calling this method with <code>[1,1], [2,-1]</code> it will first add an 6958ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar * item to index 1, then remove an item from index 2 (updated index 2) 6968ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar */ 6978ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar public void addDeleteAndNotify(final int[]... startCountTuples) throws Throwable { 6988ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar new AddRemoveRunnable(startCountTuples).runOnMainThread(); 699d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 700d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase 701d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase @Override 702d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase public int getItemCount() { 703d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase return mItems.size(); 704d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 7058ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar 706115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar /** 707115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar * Uses notifyDataSetChanged 708115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar */ 709e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar public void moveItems(boolean notifyChange, int[]... fromToTuples) throws Throwable { 710e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar for (int i = 0; i < fromToTuples.length; i += 1) { 711e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar int[] tuple = fromToTuples[i]; 712e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar moveItem(tuple[0], tuple[1], false); 713e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar } 714e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar if (notifyChange) { 715cadd54707a7aaa4cfa9c8b8051c6185e8717f22eChet Haase dispatchDataSetChanged(); 716e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar } 717e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar } 718e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar 719115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar /** 720115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar * Uses notifyDataSetChanged 721115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar */ 722e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar public void moveItem(final int from, final int to, final boolean notifyChange) 723e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar throws Throwable { 724e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar runTestOnUiThread(new Runnable() { 725e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar @Override 726e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar public void run() { 727ec60a348ce39889a99f7ca02da94a6867bfdf66fYigit Boyar moveInUIThread(from, to); 728e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar if (notifyChange) { 729e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar notifyDataSetChanged(); 730e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar } 731e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar } 732e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar }); 733e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar } 734e0c347f627f8a78d3e5e3e5eaac9c3ae26208689Yigit Boyar 735115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar /** 736115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar * Uses notifyItemMoved 737115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar */ 738115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar public void moveAndNotify(final int from, final int to) throws Throwable { 739115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar runTestOnUiThread(new Runnable() { 740115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar @Override 741115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar public void run() { 742ec60a348ce39889a99f7ca02da94a6867bfdf66fYigit Boyar moveInUIThread(from, to); 743115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar notifyItemMoved(from, to); 744115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar } 745115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar }); 746115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar } 747115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar 748ec60a348ce39889a99f7ca02da94a6867bfdf66fYigit Boyar protected void moveInUIThread(int from, int to) { 749ec60a348ce39889a99f7ca02da94a6867bfdf66fYigit Boyar Item item = mItems.remove(from); 750ec60a348ce39889a99f7ca02da94a6867bfdf66fYigit Boyar offsetOriginalIndices(from, -1); 751ec60a348ce39889a99f7ca02da94a6867bfdf66fYigit Boyar mItems.add(to, item); 752ec60a348ce39889a99f7ca02da94a6867bfdf66fYigit Boyar offsetOriginalIndices(to + 1, 1); 753ec60a348ce39889a99f7ca02da94a6867bfdf66fYigit Boyar item.mAdapterIndex = to; 754ec60a348ce39889a99f7ca02da94a6867bfdf66fYigit Boyar } 755115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar 756115ba0c7b2a14aa4cd0273952195e1d8f6468f87Yigit Boyar 75790ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar @Override 75890ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public ViewAttachDetachCounter getCounter() { 75990ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar return mAttachmentCounter; 76090ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 76190ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 7628ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar 7638ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar private class AddRemoveRunnable implements Runnable { 7648ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar final int[][] mStartCountTuples; 7658ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar 7668ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar public AddRemoveRunnable(int[][] startCountTuples) { 7678ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar mStartCountTuples = startCountTuples; 7688ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 7698ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar 7708ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar public void runOnMainThread() throws Throwable { 7718ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar if (Looper.myLooper() == Looper.getMainLooper()) { 7728ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar run(); 7738ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } else { 7748ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar runTestOnUiThread(this); 7758ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 7768ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 7778ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar 7788ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar @Override 7798ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar public void run() { 7808ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar for (int[] tuple : mStartCountTuples) { 7818ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar if (tuple[1] < 0) { 7828ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar delete(tuple); 7838ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } else { 7848ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar add(tuple); 7858ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 7868ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 7878ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 7888ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar 7898ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar private void add(int[] tuple) { 7902d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar // offset others 7912d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar offsetOriginalIndices(tuple[0], tuple[1]); 7928ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar for (int i = 0; i < tuple[1]; i++) { 7938ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar mItems.add(tuple[0], new Item(i, "new item " + i)); 7948ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 7958ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar notifyItemRangeInserted(tuple[0], tuple[1]); 7968ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 7978ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar 7988ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar private void delete(int[] tuple) { 7992d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar final int count = -tuple[1]; 8002d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar offsetOriginalIndices(tuple[0] + count, tuple[1]); 8012d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar for (int i = 0; i < count; i++) { 8028ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar mItems.remove(tuple[0]); 8038ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 8042d2e8d88103866b631eb0f3805da137ebcfb0275Yigit Boyar notifyItemRangeRemoved(tuple[0], count); 8058ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 8068ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 8078ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 8088ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar 80990ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public boolean isMainThread() { 81090ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar return Looper.myLooper() == Looper.getMainLooper(); 81190ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 81290ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 8138ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar @Override 8148ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar public void runTestOnUiThread(Runnable r) throws Throwable { 8158ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar if (Looper.myLooper() == Looper.getMainLooper()) { 8168ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar r.run(); 8178ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } else { 8188ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar super.runTestOnUiThread(r); 8198ae76f91527ce850f155ce960fb9068bcd5d49f9Yigit Boyar } 820d7d27e9ebe5c7325e67e1a8af265378bd2056cadChet Haase } 821c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar 822c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar static class TargetTuple { 823c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar 824c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar final int mPosition; 825c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar 826c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar final int mLayoutDirection; 827c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar 828c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar TargetTuple(int position, int layoutDirection) { 829c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar this.mPosition = position; 830c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar this.mLayoutDirection = layoutDirection; 831c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar } 832c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar 833c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar @Override 834c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar public String toString() { 835c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar return "TargetTuple{" + 836c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar "mPosition=" + mPosition + 837c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar ", mLayoutDirection=" + mLayoutDirection + 838c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar '}'; 839c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar } 840c50c4cad31d73e574b27bb3d7581542975e37263Yigit Boyar } 84190ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 84290ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public interface AttachDetachCountingAdapter { 84390ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 84490ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar ViewAttachDetachCounter getCounter(); 84590ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 84690ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 84790ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public class ViewAttachDetachCounter { 84890ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 84990ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar Set<RecyclerView.ViewHolder> mAttachedSet = new HashSet<RecyclerView.ViewHolder>(); 85090ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 85190ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public void validateRemaining(RecyclerView recyclerView) { 85290ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar final int childCount = recyclerView.getChildCount(); 85390ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar for (int i = 0; i < childCount; i++) { 85490ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar View view = recyclerView.getChildAt(i); 85590ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar RecyclerView.ViewHolder vh = recyclerView.getChildViewHolder(view); 85690ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar assertTrue("remaining view should be in attached set " + vh, 85790ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar mAttachedSet.contains(vh)); 85890ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 85990ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar assertEquals("there should not be any views left in attached set", 86090ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar childCount, mAttachedSet.size()); 86190ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 86290ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 86390ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public void onViewDetached(RecyclerView.ViewHolder viewHolder) { 86490ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar try { 86590ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar assertTrue("view holder should be in attached set", 86690ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar mAttachedSet.remove(viewHolder)); 86790ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } catch (Throwable t) { 86890ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar postExceptionToInstrumentation(t); 86990ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 87090ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 87190ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 87290ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public void onViewAttached(RecyclerView.ViewHolder viewHolder) { 87390ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar try { 87490ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar assertTrue("view holder should not be in attached set", 87590ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar mAttachedSet.add(viewHolder)); 87690ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } catch (Throwable t) { 87790ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar postExceptionToInstrumentation(t); 87890ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 87990ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 88090ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 88190ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public void onAttached(RecyclerView recyclerView) { 88290ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar // when a new RV is attached, clear the set and add all view holders 88390ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar mAttachedSet.clear(); 88490ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar final int childCount = recyclerView.getChildCount(); 88590ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar for (int i = 0; i < childCount; i ++) { 88690ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar View view = recyclerView.getChildAt(i); 88790ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar mAttachedSet.add(recyclerView.getChildViewHolder(view)); 88890ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 88990ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 89090ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar 89190ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar public void onDetached(RecyclerView recyclerView) { 89290ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar validateRemaining(recyclerView); 89390ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 89490ca3086dbf66ad6bb8840e46ec8524a705e1c18Yigit Boyar } 8957a59e4b36500bcfddd842376d6c3abe0d9f23d84Yigit Boyar} 896