| /* |
| * Copyright (C) 2007 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.util; |
| |
| import android.app.Instrumentation; |
| import android.view.KeyEvent; |
| import android.widget.ListView; |
| |
| /** |
| * Various useful stuff for instrumentation testing listview. |
| */ |
| public class ListUtil { |
| |
| private final ListView mListView; |
| private final Instrumentation mInstrumentation; |
| |
| /** |
| * @param listView The listview to act on |
| * @param instrumentation The instrumentation to use. |
| */ |
| public ListUtil(ListView listView, Instrumentation instrumentation) { |
| mListView = listView; |
| mInstrumentation = instrumentation; |
| } |
| |
| /** |
| * Set the selected position of the list view. |
| * @param pos The desired position. |
| */ |
| public final void setSelectedPosition(final int pos) { |
| mListView.post(new Runnable() { |
| public void run() { |
| mListView.setSelection(pos); |
| } |
| }); |
| mInstrumentation.waitForIdleSync(); |
| } |
| |
| /** |
| * Get the top of the list. |
| */ |
| public final int getListTop() { |
| return mListView.getListPaddingTop(); |
| } |
| |
| /** |
| * Get the bottom of the list. |
| */ |
| public final int getListBottom() { |
| return mListView.getHeight() - mListView.getListPaddingBottom(); |
| } |
| |
| /** |
| * Arrow (up or down as appropriate) to the desired position in the list. |
| * @param desiredPos The desired position |
| * @throws IllegalStateException if the position can't be reached within 20 presses. |
| */ |
| public final void arrowScrollToSelectedPosition(int desiredPos) { |
| if (desiredPos > mListView.getSelectedItemPosition()) { |
| arrowDownToSelectedPosition(desiredPos); |
| } else { |
| arrowUpToSelectedPosition(desiredPos); |
| } |
| } |
| |
| private void arrowDownToSelectedPosition(int position) { |
| int maxDowns = 20; |
| while(mListView.getSelectedItemPosition() < position && --maxDowns > 0) { |
| mInstrumentation.sendCharacterSync(KeyEvent.KEYCODE_DPAD_DOWN); |
| } |
| if (position != mListView.getSelectedItemPosition()) { |
| throw new IllegalStateException("couldn't get to item after 20 downs"); |
| } |
| |
| } |
| |
| private void arrowUpToSelectedPosition(int position) { |
| int maxUps = 20; |
| while(mListView.getSelectedItemPosition() > position && --maxUps > 0) { |
| mInstrumentation.sendCharacterSync(KeyEvent.KEYCODE_DPAD_UP); |
| } |
| if (position != mListView.getSelectedItemPosition()) { |
| throw new IllegalStateException("couldn't get to item after 20 ups"); |
| } |
| } |
| |
| } |