Android example source code file (ListTouchTest.java)

This example Android source code file (ListTouchTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

activityinstrumentationtestcase, android, exception, item, listtopgravity, listtouchtest, listview, mediumtest, override, selection, test, ui, view, widget

The ListTouchTest.java Android example source code

/*
 * 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.widget.listview.touch;

import android.test.ActivityInstrumentationTestCase;
import android.test.suitebuilder.annotation.MediumTest;
import android.test.TouchUtils;
import android.view.View;
import android.widget.ListView;

import android.widget.listview.ListTopGravity;

/**
 * Touch tests for a list where all of the items fit on the screen.
 */
public class ListTouchTest extends ActivityInstrumentationTestCase<ListTopGravity> {
    private ListTopGravity mActivity;
    private ListView mListView;

    public ListTouchTest() {
        super("com.android.frameworks.coretests", ListTopGravity.class);
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();

        mActivity = getActivity();
        mListView = getActivity().getListView();
    }

    @MediumTest
    public void testPreconditions() {
        assertNotNull(mActivity);
        assertNotNull(mListView);
        
        // First item should be selected
        assertEquals(0, mListView.getSelectedItemPosition());
    }
    
    @MediumTest
    public void testPullDown() {
        View firstChild = mListView.getChildAt(0);
        
        TouchUtils.dragViewToBottom(this, firstChild);
        
        // Nothing should be selected
        assertEquals("Selection still available after touch", -1, 
                mListView.getSelectedItemPosition());
        
        firstChild = mListView.getChildAt(0);
        
        assertEquals("Item zero not the first child in the list", 0, firstChild.getId());
        
        assertEquals("Item zero not at the top of the list", mListView.getListPaddingTop(),
                firstChild.getTop());
    }
    
    @MediumTest
    public void testPushUp() {
        View lastChild = mListView.getChildAt(mListView.getChildCount() - 1);
        
        TouchUtils.dragViewToTop(this, lastChild);

        // Nothing should be selected
        assertEquals("Selection still available after touch", -1, 
                mListView.getSelectedItemPosition());

        View firstChild = mListView.getChildAt(0);

        assertEquals("Item zero not the first child in the list", 0, firstChild.getId());
        
        assertEquals("Item zero not at the top of the list", mListView.getListPaddingTop(),
                firstChild.getTop());
    }

}