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      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 
     17 package android.widget.listview.touch;
     18 
     19 import android.test.ActivityInstrumentationTestCase;
     20 import android.test.suitebuilder.annotation.LargeTest;
     21 import android.test.suitebuilder.annotation.MediumTest;
     22 import android.test.TouchUtils;
     23 import android.view.Gravity;
     24 import android.view.View;
     25 import android.view.ViewConfiguration;
     26 import android.widget.ListView;
     27 
     28 import android.widget.listview.ListBottomGravityMany;
     29 
     30 /**
     31  * Touch tests for a list where all of the items do not fit on the screen, and the list
     32  * stacks from the bottom.
     33  */
     34 public class ListTouchBottomGravityManyTest extends ActivityInstrumentationTestCase<ListBottomGravityMany> {
     35     private ListBottomGravityMany mActivity;
     36     private ListView mListView;
     37 
     38     public ListTouchBottomGravityManyTest() {
     39         super("com.android.frameworks.coretests", ListBottomGravityMany.class);
     40     }
     41 
     42     @Override
     43     protected void setUp() throws Exception {
     44         super.setUp();
     45 
     46         mActivity = getActivity();
     47         mListView = getActivity().getListView();
     48     }
     49 
     50     @MediumTest
     51     public void testPreconditions() {
     52         assertNotNull(mActivity);
     53         assertNotNull(mListView);
     54 
     55         // Last item should be selected
     56         assertEquals(mListView.getAdapter().getCount() - 1, mListView.getSelectedItemPosition());
     57     }
     58 
     59     @LargeTest
     60     public void testPullDown() {
     61         int originalCount = mListView.getChildCount();
     62 
     63         TouchUtils.scrollToTop(this, mListView);
     64 
     65         // Nothing should be selected
     66         assertEquals("Selection still available after touch", -1,
     67                 mListView.getSelectedItemPosition());
     68 
     69         View firstChild = mListView.getChildAt(0);
     70 
     71         assertEquals("Item zero not the first child in the list", 0, firstChild.getId());
     72 
     73         assertEquals("Item zero not at the top of the list", mListView.getListPaddingTop(),
     74                 firstChild.getTop());
     75 
     76         assertTrue(String.format("Too many children created: %d expected no more than %d",
     77                 mListView.getChildCount(), originalCount + 1),
     78                 mListView.getChildCount() <= originalCount + 1);
     79     }
     80 
     81     @MediumTest
     82     public void testPushUp() {
     83         TouchUtils.scrollToBottom(this, mListView);
     84 
     85         // Nothing should be selected
     86         assertEquals("Selection still available after touch", -1,
     87                 mListView.getSelectedItemPosition());
     88 
     89         View lastChild = mListView.getChildAt(mListView.getChildCount() - 1);
     90 
     91         assertEquals("List is not scrolled to the bottom", mListView.getAdapter().getCount() - 1,
     92                 lastChild.getId());
     93 
     94         assertEquals("Last item is not touching the bottom edge",
     95                 mListView.getHeight() - mListView.getListPaddingBottom(), lastChild.getBottom());
     96     }
     97 
     98     @MediumTest
     99     public void testNoScroll() {
    100         View firstChild = mListView.getChildAt(0);
    101         View lastChild = mListView.getChildAt(mListView.getChildCount() - 1);
    102 
    103         int lastTop = lastChild.getTop();
    104 
    105         TouchUtils.dragViewBy(this, firstChild, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL,
    106                 0, ViewConfiguration.getTouchSlop());
    107 
    108         View newLastChild = mListView.getChildAt(mListView.getChildCount() - 1);
    109 
    110         assertEquals("View scrolled too early", lastTop, newLastChild.getTop());
    111         assertEquals("Wrong view in last position", mListView.getAdapter().getCount() - 1,
    112                 newLastChild.getId());
    113     }
    114 
    115     // TODO: needs to be adjusted to pass on non-HVGA displays
    116     // @LargeTest
    117     public void testShortScroll() {
    118         View firstChild = mListView.getChildAt(0);
    119         if (firstChild.getTop() < this.mListView.getListPaddingTop()) {
    120             firstChild = mListView.getChildAt(1);
    121         }
    122 
    123         View lastChild = mListView.getChildAt(mListView.getChildCount() - 1);
    124 
    125         int lastTop = lastChild.getTop();
    126 
    127         TouchUtils.dragViewBy(this, firstChild, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL,
    128                 0, ViewConfiguration.getTouchSlop() + 1 + 10);
    129 
    130         View newLastChild = mListView.getChildAt(mListView.getChildCount() - 1);
    131 
    132         assertEquals("View scrolled to wrong position", lastTop, newLastChild.getTop() - 10);
    133         assertEquals("Wrong view in last position", mListView.getAdapter().getCount() - 1,
    134                 newLastChild.getId());
    135     }
    136 
    137     // TODO: needs to be adjusted to pass on non-HVGA displays
    138     // @LargeTest
    139     public void testLongScroll() {
    140         View firstChild = mListView.getChildAt(0);
    141         if (firstChild.getTop() < mListView.getListPaddingTop()) {
    142             firstChild = mListView.getChildAt(1);
    143         }
    144 
    145         int firstTop = firstChild.getTop();
    146 
    147         int distance = TouchUtils.dragViewBy(this, firstChild,
    148                 Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 0,
    149                 (int)(mActivity.getWindowManager().getDefaultDisplay().getHeight() * 0.75f));
    150 
    151         assertEquals("View scrolled to wrong position", firstTop
    152                 + (distance - ViewConfiguration.getTouchSlop() - 1), firstChild.getTop());
    153     }
    154 
    155 }
    156