alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Android example source code file (ListInterleaveFocusablesTest.java)

This example Android source code file (ListInterleaveFocusablesTest.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, largetest, listinterleavefocusablestest, listutil, listview, mediumtest, override, test, ui, util, utilities, view

The ListInterleaveFocusablesTest.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.arrowscroll;

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

import android.widget.listview.ListInterleaveFocusables;
import android.util.ListUtil;

public class ListInterleaveFocusablesTest extends ActivityInstrumentationTestCase<ListInterleaveFocusables> {
    private ListView mListView;
    private ListUtil mListUtil;

    public ListInterleaveFocusablesTest() {
        super("com.android.frameworks.coretests", ListInterleaveFocusables.class);
    }

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

        mListView = getActivity().getListView();
        mListUtil = new ListUtil(mListView, getInstrumentation());
    }

    @LargeTest
    public void testPreconditions() {
        assertEquals(7, mListView.getChildCount());
        assertTrue(mListView.getChildAt(1).isFocusable());
        assertTrue(mListView.getChildAt(3).isFocusable());
        assertTrue(mListView.getChildAt(6).isFocusable());
    }

    @MediumTest
    public void testGoingFromUnFocusableSelectedToFocusable() {
        sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);

        assertEquals("selected item position", 1, mListView.getSelectedItemPosition());
        assertSelectedViewFocus(true);
    }

    // go down from an item that isn't focusable, make sure it finds the focusable
    // below (instead of above).  this exposes a (now fixed) bug where the focus search
    // was not starting from the right spot
    @MediumTest
    public void testGoingDownFromUnFocusableSelectedToFocusableWithOtherFocusableAbove() {
        mListUtil.setSelectedPosition(2);
        sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
        assertEquals("selected item position", 3, mListView.getSelectedItemPosition());
        assertSelectedViewFocus(true);
    }

    // same, but going up
    @MediumTest
    public void testGoingUpFromUnFocusableSelectedToFocusableWithOtherFocusableAbove() {
        mListUtil.setSelectedPosition(2);
        sendKeys(KeyEvent.KEYCODE_DPAD_UP);
        assertEquals("selected item position", 1, mListView.getSelectedItemPosition());
        assertSelectedViewFocus(true);
    }

    /**
     * Go down from a focusable when there is a focusable below, but it is more than
     * one item away; make sure it won't give that item focus because it is too far away.
     */
    @MediumTest
    public void testGoingDownFromFocusableToUnfocusableWhenFocusableIsBelow() {
        mListUtil.setSelectedPosition(3);
        sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
        assertEquals("selected item position", 4, mListView.getSelectedItemPosition());
        assertSelectedViewFocus(false);
    }

    // same but going up
    @MediumTest
    public void testGoingUpFromFocusableToUnfocusableWhenFocusableIsBelow() {
        mListUtil.setSelectedPosition(6);
        sendKeys(KeyEvent.KEYCODE_DPAD_UP);
        assertEquals("selected item position", 5, mListView.getSelectedItemPosition());
        assertSelectedViewFocus(false);
    }

    public void assertSelectedViewFocus(boolean isFocused) {
        final View view = mListView.getSelectedView();
        assertEquals("selected view focused", isFocused, view.isFocused());
        assertEquals("selected position's isSelected should be the inverse "
                + "of it having focus", !isFocused, view.isSelected());
    }

}

Other Android examples (source code examples)

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

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.