1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.widget.listview; 18 19import android.app.Instrumentation; 20import android.test.ActivityInstrumentationTestCase2; 21import android.test.suitebuilder.annotation.LargeTest; 22import android.test.suitebuilder.annotation.MediumTest; 23import android.view.KeyEvent; 24import android.widget.ListView; 25import android.test.TouchUtils; 26 27/** 28 * Tests restoring the scroll position in a list with a managed cursor. 29 */ 30public class ListManagedCursorTest extends ActivityInstrumentationTestCase2<ListManagedCursor> { 31 private ListManagedCursor mActivity; 32 private ListView mListView; 33 34 public ListManagedCursorTest() { 35 super(ListManagedCursor.class); 36 } 37 38 @Override 39 protected void setUp() throws Exception { 40 super.setUp(); 41 42 mActivity = getActivity(); 43 mListView = getActivity().getListView(); 44 } 45 46 @MediumTest 47 public void testPreconditions() { 48 assertNotNull(mActivity); 49 assertNotNull(mListView); 50 51 assertEquals(0, mListView.getFirstVisiblePosition()); 52 } 53 54 /** 55 * Scroll the list using arrows, launch new activity, hit back, make sure we're still scrolled. 56 */ 57 @LargeTest 58 public void testKeyScrolling() { 59 Instrumentation inst = getInstrumentation(); 60 61 int firstVisiblePosition = arrowScroll(inst); 62 63 inst.sendCharacterSync(KeyEvent.KEYCODE_BACK); 64 inst.waitForIdleSync(); 65 66 assertTrue("List changed to touch mode", !mListView.isInTouchMode()); 67 assertTrue("List did not preserve scroll position", 68 firstVisiblePosition == mListView.getFirstVisiblePosition()); 69 } 70 71 /** 72 * Scroll the list using arrows, launch new activity, change to touch mode, hit back, make sure 73 * we're still scrolled. 74 */ 75 @LargeTest 76 public void testKeyScrollingToTouchMode() { 77 Instrumentation inst = getInstrumentation(); 78 79 int firstVisiblePosition = arrowScroll(inst); 80 81 TouchUtils.dragQuarterScreenUp(this, getActivity()); 82 inst.sendCharacterSync(KeyEvent.KEYCODE_BACK); 83 inst.waitForIdleSync(); 84 85 assertTrue("List did not change to touch mode", mListView.isInTouchMode()); 86 assertTrue("List did not preserve scroll position", 87 firstVisiblePosition == mListView.getFirstVisiblePosition()); 88 } 89 90 public int arrowScroll(Instrumentation inst) { 91 int count = mListView.getChildCount(); 92 93 for (int i = 0; i < count * 2; i++) { 94 inst.sendCharacterSync(KeyEvent.KEYCODE_DPAD_DOWN); 95 } 96 inst.waitForIdleSync(); 97 98 int firstVisiblePosition = mListView.getFirstVisiblePosition(); 99 assertTrue("Arrow scroll did not happen", firstVisiblePosition > 0); 100 assertTrue("List still in touch mode", !mListView.isInTouchMode()); 101 102 inst.sendCharacterSync(KeyEvent.KEYCODE_DPAD_CENTER); 103 inst.waitForIdleSync(); 104 105 try { 106 Thread.sleep(3000); 107 } catch (InterruptedException e) { 108 e.printStackTrace(); 109 } 110 111 return firstVisiblePosition; 112 } 113} 114