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Android example source code file (ListTouchManyTest.java)

This example Android source code file (ListTouchManyTest.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, incorrect, interruptedexception, item, largetest, listtopgravitymany, listtouchmanytest, listview, mediumtest, override, selection, test, too, ui, view, widget, wrong

The ListTouchManyTest.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.LargeTest;
import android.test.suitebuilder.annotation.MediumTest;
import android.test.TouchUtils;
import android.view.Gravity;
import android.view.View;
import android.view.ViewConfiguration;
import android.widget.ListView;

import android.widget.listview.ListTopGravityMany;

/**
 * Touch tests for a list where all of the items do not fit on the screen.
 */
public class ListTouchManyTest extends ActivityInstrumentationTestCase<ListTopGravityMany> {
    private ListTopGravityMany mActivity;
    private ListView mListView;

    public ListTouchManyTest() {
        super("com.android.frameworks.coretests", ListTopGravityMany.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() {
        TouchUtils.scrollToTop(this, mListView);
        
        // 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());
    }
    
    @LargeTest
    public void testPushUp() {
        int originalCount = mListView.getChildCount();
        
        TouchUtils.scrollToBottom(this, mListView);

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

        View lastChild = mListView.getChildAt(mListView.getChildCount() - 1);

        assertEquals("List is not scrolled to the bottom", mListView.getAdapter().getCount() - 1,
                lastChild.getId());

        assertEquals("Last item is not touching the bottom edge",  
                mListView.getHeight() - mListView.getListPaddingBottom(), lastChild.getBottom());
        
        assertTrue(String.format("Too many children created: %d expected no more than %d", 
                mListView.getChildCount(), originalCount + 1), 
                mListView.getChildCount() <= originalCount + 1);
    }

    @LargeTest
    public void testPress() {
        int i;
        int count = mListView.getChildCount();
        mActivity.setClickedPosition(-1);
        mActivity.setLongClickedPosition(-1);
        
        for (i = 0; i < count; i++) {
            View child = mListView.getChildAt(i);
            if ((child.getTop() >= mListView.getListPaddingTop())
                    && (child.getBottom() <= 
                        mListView.getHeight() - mListView.getListPaddingBottom())) {
                TouchUtils.clickView(this, child);
                
                assertEquals("Incorrect view position reported being clicked", i, 
                        mActivity.getClickedPosition());
                assertEquals("View falsely reported being long clicked", -1, 
                        mActivity.getLongClickedPosition());
                try {
                    Thread.sleep((long)(ViewConfiguration.getLongPressTimeout() * 1.25f));
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    
    @LargeTest
    public void testLongPress() {
        int i;
        int count = mListView.getChildCount();
        mActivity.enableLongPress();
        mActivity.setClickedPosition(-1);
        mActivity.setLongClickedPosition(-1);
        
        for (i = 0; i < count; i++) {
            View child = mListView.getChildAt(i);
            if ((child.getTop() >= mListView.getListPaddingTop())
                    && (child.getBottom() <= 
                        mListView.getHeight() - mListView.getListPaddingBottom())) {
                TouchUtils.longClickView(this, child);
                assertEquals("Incorrect view position reported being long clicked", i, 
                        mActivity.getLongClickedPosition());
                assertEquals("View falsely reported being clicked", -1, 
                        mActivity.getClickedPosition());
            }
        }
    }
    
    @MediumTest
    public void testNoScroll() {
        View firstChild = mListView.getChildAt(0);
        View lastChild = mListView.getChildAt(mListView.getChildCount() - 1);
        
        int firstTop = firstChild.getTop();
        
        TouchUtils.dragViewBy(this, lastChild, Gravity.TOP | Gravity.LEFT, 
                0, -(ViewConfiguration.getTouchSlop()));
        
        View newFirstChild = mListView.getChildAt(0);
        
        assertEquals("View scrolled too early", firstTop, newFirstChild.getTop());
        assertEquals("Wrong view in first position", 0, newFirstChild.getId());
    }
    
    // TODO: needs to be adjusted to pass on non-HVGA displays
    // @LargeTest
    public void testShortScroll() {
        View firstChild = mListView.getChildAt(0);
        View lastChild = mListView.getChildAt(mListView.getChildCount() - 1);
        
        int firstTop = firstChild.getTop();
        
        TouchUtils.dragViewBy(this, lastChild, Gravity.TOP | Gravity.LEFT,
                0, -(ViewConfiguration.getTouchSlop() + 1 + 10));
        
        View newFirstChild = mListView.getChildAt(0);
        
        assertEquals("View scrolled too early", firstTop, newFirstChild.getTop() + 10);
        assertEquals("Wrong view in first position", 0, newFirstChild.getId());
    }
    
    // TODO: needs to be adjusted to pass on non-HVGA displays
    // @LargeTest
    public void testLongScroll() {
        View lastChild = mListView.getChildAt(mListView.getChildCount() - 1);
        
        int lastTop = lastChild.getTop();
        
        int distance = TouchUtils.dragViewToY(this, lastChild, 
                Gravity.TOP | Gravity.LEFT, mListView.getTop());
        
        assertEquals("View scrolled to wrong position", 
                lastTop - (distance - ViewConfiguration.getTouchSlop() - 1), lastChild.getTop());
    } 

    
}

Other Android examples (source code examples)

Here is a short list of links related to this Android ListTouchManyTest.java source code file:

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