Android example source code file (AutoCompleteTextViewCallbacks.java)

This example Android source code file (AutoCompleteTextViewCallbacks.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

a, activityinstrumentationtestcase2, android, app, application, autocompletetextview, autocompletetextviewcallbacks, autocompletetextviewsimple, dpad_down, dpad_up, exception, flakytest, instrumentation, runnable, test, wait_time

The AutoCompleteTextViewCallbacks.java Android example source code

/*
 * Copyright (C) 2008 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;

import android.app.Instrumentation;
import android.test.ActivityInstrumentationTestCase2;
import android.test.FlakyTest;

// TODO: tests fail intermittently. Add back MediumTest annotation when fixed
public class AutoCompleteTextViewCallbacks
        extends ActivityInstrumentationTestCase2<AutoCompleteTextViewSimple> {

    private static final int WAIT_TIME = 200;

    public AutoCompleteTextViewCallbacks() {
        super("com.android.frameworks.coretests", AutoCompleteTextViewSimple.class);
    }

    /** Test that the initial popup of the suggestions does not select anything.
     */
    @FlakyTest(tolerance=3)
    public void testPopupNoSelection() throws Exception {
        AutoCompleteTextViewSimple theActivity = getActivity();
        AutoCompleteTextView textView = theActivity.getTextView();
        final Instrumentation instrumentation = getInstrumentation();

        // focus and type
        textView.requestFocus();
        instrumentation.waitForIdleSync();
        sendKeys("A");
        instrumentation.waitForIdleSync();
        // give UI time to settle
        Thread.sleep(WAIT_TIME);

        // now check for selection callbacks.  Nothing should be clicked or selected.
        assertFalse("onItemClick should not be called", theActivity.mItemClickCalled);
        assertFalse("onItemSelected should not be called", theActivity.mItemSelectedCalled);

        // arguably, this should be "false", because we aren't deselecting - we shouldn't
        // really be calling it.  But it's not the end of the world, and we might wind up
        // breaking something if we change this.
        //assertTrue("onNothingSelected should be called", theActivity.mNothingSelectedCalled);
    }

    /** Test that arrow-down into the popup calls the onSelected callback. */
    @FlakyTest(tolerance=3)
    public void testPopupEnterSelection() throws Exception {
        final AutoCompleteTextViewSimple theActivity = getActivity();
        AutoCompleteTextView textView = theActivity.getTextView();
        final Instrumentation instrumentation = getInstrumentation();

        // focus and type
        textView.requestFocus();
        instrumentation.waitForIdleSync();
        sendKeys("A");

        textView.post(new Runnable() {
            public void run() {
                // prepare to move down into the popup
                theActivity.resetItemListeners();
            }
        });

        sendKeys("DPAD_DOWN");
        instrumentation.waitForIdleSync();
        // give UI time to settle
        Thread.sleep(WAIT_TIME);

        // now check for selection callbacks.
        assertFalse("onItemClick should not be called", theActivity.mItemClickCalled);
        assertTrue("onItemSelected should be called", theActivity.mItemSelectedCalled);
        assertEquals("onItemSelected position", 0, theActivity.mItemSelectedPosition);
        assertFalse("onNothingSelected should not be called", theActivity.mNothingSelectedCalled);

        textView.post(new Runnable() {
            public void run() {
                // try one more time - should move from 0 to 1
                theActivity.resetItemListeners();
            }
        });

        sendKeys("DPAD_DOWN");
        instrumentation.waitForIdleSync();        
        // give UI time to settle
        Thread.sleep(WAIT_TIME);

        // now check for selection callbacks.
        assertFalse("onItemClick should not be called", theActivity.mItemClickCalled);
        assertTrue("onItemSelected should be called", theActivity.mItemSelectedCalled);
        assertEquals("onItemSelected position", 1, theActivity.mItemSelectedPosition);
        assertFalse("onNothingSelected should not be called", theActivity.mNothingSelectedCalled);
    }

    /** Test that arrow-up out of the popup calls the onNothingSelected callback */
    @FlakyTest(tolerance=3)
    public void testPopupLeaveSelection() {
        final AutoCompleteTextViewSimple theActivity = getActivity();
        AutoCompleteTextView textView = theActivity.getTextView();
        final Instrumentation instrumentation = getInstrumentation();

        // focus and type
        textView.requestFocus();
        instrumentation.waitForIdleSync();
        sendKeys("A");
        instrumentation.waitForIdleSync();

        // move down into the popup
        sendKeys("DPAD_DOWN");
        instrumentation.waitForIdleSync();

        textView.post(new Runnable() {
            public void run() {
                // prepare to move down into the popup
                theActivity.resetItemListeners();
            }
        });

        sendKeys("DPAD_UP");
        instrumentation.waitForIdleSync();

        // now check for selection callbacks.
        assertFalse("onItemClick should not be called", theActivity.mItemClickCalled);
        assertFalse("onItemSelected should not be called", theActivity.mItemSelectedCalled);
        assertTrue("onNothingSelected should be called", theActivity.mNothingSelectedCalled);
    }

}