1/* 2 * Copyright (C) 2007 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.arrowscroll; 18 19import android.test.ActivityInstrumentationTestCase; 20import android.test.suitebuilder.annotation.MediumTest; 21import android.view.KeyEvent; 22import android.view.View; 23import android.widget.ListView; 24import android.widget.TextView; 25import android.widget.listview.ListWithOffScreenNextSelectable; 26 27public class ListWithOffScreenNextSelectableTest 28 extends ActivityInstrumentationTestCase<ListWithOffScreenNextSelectable> { 29 private ListView mListView; 30 31 public ListWithOffScreenNextSelectableTest() { 32 super("com.android.frameworks.coretests", ListWithOffScreenNextSelectable.class); 33 } 34 35 @Override 36 protected void setUp() throws Exception { 37 super.setUp(); 38 39 mListView = getActivity().getListView(); 40 } 41 42 @MediumTest 43 public void testPreconditions() { 44 assertNotNull(mListView); 45 assertEquals(5, mListView.getAdapter().getCount()); 46 assertFalse(mListView.getAdapter().areAllItemsEnabled()); 47 assertFalse(mListView.getAdapter().isEnabled(1)); 48 assertFalse(mListView.getAdapter().isEnabled(2)); 49 assertFalse(mListView.getAdapter().isEnabled(3)); 50 assertEquals("only 4 children should be on screen (so that next selectable is off " + 51 "screen) for this test to be meaningful.", 52 4, mListView.getChildCount()); 53 assertEquals(0, mListView.getSelectedItemPosition()); 54 } 55 56 // when the next items on screen are not selectable, we pan until the next selectable item 57 // is (partially visible), then we jump to it 58 @MediumTest 59 public void testGoDownToOffScreenSelectable() { 60 61 final int listBottom = mListView.getHeight() - mListView.getListPaddingBottom(); 62 63 final View lastVisibleView = mListView.getChildAt(mListView.getChildCount() - 1); 64 sendKeys(KeyEvent.KEYCODE_DPAD_DOWN); 65 assertEquals("expecting view to be panned to just above fading edge", 66 listBottom - mListView.getVerticalFadingEdgeLength(), lastVisibleView.getBottom()); 67 assertEquals("selection should not have moved yet", 68 0, mListView.getSelectedItemPosition()); 69 70 sendKeys(KeyEvent.KEYCODE_DPAD_DOWN); 71 assertEquals("selection should have moved", 72 4, mListView.getSelectedItemPosition()); 73 assertEquals("wrong view created when scrolling", 74 getActivity().getValueAtPosition(4), ((TextView) mListView.getSelectedView()).getText()); 75 assertEquals(listBottom, mListView.getSelectedView().getBottom()); 76 } 77 78 @MediumTest 79 public void testGoUpToOffScreenSelectable() { 80 final int listBottom = mListView.getHeight() - mListView.getListPaddingBottom(); 81 final int listTop = mListView.getListPaddingTop(); 82 83 sendKeys(KeyEvent.KEYCODE_DPAD_DOWN); 84 sendKeys(KeyEvent.KEYCODE_DPAD_DOWN); 85 86 assertEquals(4, mListView.getSelectedItemPosition()); 87 assertEquals(listBottom, mListView.getSelectedView().getBottom()); 88 89 // now we have the reverse situation: the next selectable position upward is off screen 90 final View firstVisibleView = mListView.getChildAt(0); 91 sendKeys(KeyEvent.KEYCODE_DPAD_UP); 92 assertEquals("should have panned top view just below vertical fading edge", 93 listTop + mListView.getVerticalFadingEdgeLength(), firstVisibleView.getTop()); 94 assertEquals("selection should not have moved yet", 95 4, mListView.getSelectedItemPosition()); 96 97 sendKeys(KeyEvent.KEYCODE_DPAD_UP); 98 assertEquals("selection should have moved", 99 0, mListView.getSelectedItemPosition()); 100 assertEquals(getActivity().getValueAtPosition(0),((TextView) mListView.getSelectedView()).getText()); 101 assertEquals(listTop, mListView.getSelectedView().getTop()); 102 103 } 104 105} 106