Doc change: cherry-pick from master. ->Subject: Android application files for the Activity Testing Tutorial
Conflicts:
build/sdk.atree
Change-Id: I5edb1d4d8a18fbda53a0e78ca6c9d20cf7d3ff4a
diff --git a/build/sdk.atree b/build/sdk.atree
index f6bde6a..b6bcd41 100644
--- a/build/sdk.atree
+++ b/build/sdk.atree
@@ -98,6 +98,8 @@
development/samples/SoftKeyboard samples/${PLATFORM_NAME}/SoftKeyboard
development/samples/JetBoy samples/${PLATFORM_NAME}/JetBoy
development/samples/SearchableDictionary samples/${PLATFORM_NAME}/SearchableDictionaryV2
+development/samples/Spinner samples/${PlATFORM_NAME}/Spinner
+development/samples/SpinnerTest samples/${PLATFORM_NAME}/SpinnerTest
development/samples/ContactManager samples/${PLATFORM_NAME}/ContactManager
development/samples/MultiResolution samples/${PLATFORM_NAME}/MultiResolution
development/samples/Wiktionary samples/${PLATFORM_NAME}/Wiktionary
diff --git a/samples/Spinner/AndroidManifest.xml b/samples/Spinner/AndroidManifest.xml
new file mode 100644
index 0000000..f1accf8
--- /dev/null
+++ b/samples/Spinner/AndroidManifest.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 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.
+-->
+
+<!--
+ Declares the contents of this Android application. The "namespace"
+ attribute brings in the Android platform namespace, and the
+ "package" attribute provides a unique Android name for the application.
+ If you use this file as a template in your own application, you must change
+ the package name from "com.android.example" to one that you own or have
+ control over.
+ -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="com.android.example.spinner"
+ android:versionCode="1"
+ android:versionName="1.0">
+ <!--
+ Sets the application's user-readable label
+ -->
+ <application android:label="@string/app_name">
+ <!--
+ Sets the activity's name and label
+ -->
+ <activity android:name=".SpinnerActivity"
+ android:label="@string/app_name">
+ <!--
+ This activity responds to MAIN and LAUNCHER intents
+ -->
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+ <category android:name="android.intent.category.LAUNCHER" />
+ </intent-filter>
+ </activity>
+
+ </application>
+ <!--
+ Requires a minimum platform version of Android-3 (SDK 1.5) to run
+ -->
+ <uses-sdk android:minSdkVersion="3"/>
+
+</manifest>
diff --git a/samples/Spinner/_index.html b/samples/Spinner/_index.html
new file mode 100644
index 0000000..2e50d9d
--- /dev/null
+++ b/samples/Spinner/_index.html
@@ -0,0 +1,22 @@
+<p>
+This sample is the application under test for the
+<a href="../../../resources/tutorials/testing/activity_test.html">Activity
+ Testing Tutorial</a>. It contains a single Activity that displays a
+Spinner widget backed by an array of strings containing the names of the planets
+in the Solar System. When an entry is selected from the Spinner, the entry is
+displayed in a text box.
+</p>
+<p>
+An important part of this application is state management. When the application
+is first run, the spinner widget displays a default selection of
+"Earth". Thereafter, the application saves a selection as soon as it
+is made. The application remembers the selection from invocation to invocation, even
+if the device reboots.
+</p>
+<p>
+For more information about this application, see the Activity Testing Tutorial.
+The test application for this application is in the <a
+ href="../SpinnerTest/index.html">SpinnerTest</a> sample application.
+</p>
+
+<img alt="The Spinner application" src="../images/testing/spinner_main_screen.png" />
diff --git a/samples/Spinner/res/layout/main.xml b/samples/Spinner/res/layout/main.xml
new file mode 100644
index 0000000..3765b3a
--- /dev/null
+++ b/samples/Spinner/res/layout/main.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 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.
+-->
+
+<!--
+ Creates a Linear Layout View to contain the spinner
+ -->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ android:orientation="vertical"
+ android:layout_width="fill_parent"
+ android:layout_height="fill_parent"
+ >
+
+ <!--
+ Creates a spinner widget called Spinner01, within the Linear Layout
+ The prompt text comes from the string "planet_prompt" in strings.xml
+ -->
+ <Spinner
+ android:id="@+id/Spinner01"
+ android:layout_height="wrap_content"
+ android:layout_width="fill_parent"
+ android:drawSelectorOnTop = "true"
+ android:prompt = "@string/planet_prompt">
+ </Spinner>
+
+ <!--
+ Creates a TextView called SpinnerResult, below the spinner.
+ -->
+ <TextView
+ android:id="@+id/SpinnerResult" android:text="Result"
+ android:layout_height="fill_parent" android:textSize="10pt"
+ android:textStyle="bold" android:gravity="center"
+ android:layout_width="fill_parent">
+ </TextView>
+
+</LinearLayout>
diff --git a/samples/Spinner/res/values/strings.xml b/samples/Spinner/res/values/strings.xml
new file mode 100644
index 0000000..ae445f3
--- /dev/null
+++ b/samples/Spinner/res/values/strings.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 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.
+-->
+
+<!--
+ The string named "app_name" defines the application's visible name.
+ The string array "Planets" defines an array of 9 strings. The application loads
+ this array into the spinner's array adapter.
+ The string "planet_prompt" defines the prompt for the result text box.
+ -->
+<resources>
+ <string name="app_name">Spinner</string>
+ <string-array name="Planets">
+ <item>Mercury</item>
+ <item>Venus</item>
+ <item>Earth</item>
+ <item>Mars</item>
+ <item>Jupiter</item>
+ <item>Saturn</item>
+ <item>Uranus</item>
+ <item>Neptune</item>
+ <item>Pluto</item>
+ </string-array>
+ <string name="planet_prompt">Select a planet</string>
+</resources>
\ No newline at end of file
diff --git a/samples/Spinner/src/com/android/example/spinner/SpinnerActivity.java b/samples/Spinner/src/com/android/example/spinner/SpinnerActivity.java
new file mode 100644
index 0000000..fa4967c
--- /dev/null
+++ b/samples/Spinner/src/com/android/example/spinner/SpinnerActivity.java
@@ -0,0 +1,374 @@
+/*
+ * Copyright (C) 2010 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 com.android.example.spinner;
+
+import com.android.example.spinner.R;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.Spinner;
+import android.widget.TextView;
+import android.widget.Toast;
+import android.widget.AdapterView.OnItemSelectedListener;
+
+/**
+ * Displays an Android spinner widget backed by data in an array. The
+ * array is loaded from the strings.xml resources file.
+ */
+public class SpinnerActivity extends Activity {
+
+ /**
+ * Fields to contain the current position and display contents of the spinner
+ */
+ protected int mPos;
+ protected String mSelection;
+
+ /**
+ * ArrayAdapter connects the spinner widget to array-based data.
+ */
+ protected ArrayAdapter<CharSequence> mAdapter;
+
+ /**
+ * The initial position of the spinner when it is first installed.
+ */
+ public static final int DEFAULT_POSITION = 2;
+
+ /**
+ * The name of a properties file that stores the position and
+ * selection when the activity is not loaded.
+ */
+ public static final String PREFERENCES_FILE = "SpinnerPrefs";
+
+ /**
+ * These values are used to read and write the properties file.
+ * PROPERTY_DELIMITER delimits the key and value in a Java properties file.
+ * The "marker" strings are used to write the properties into the file
+ */
+ public static final String PROPERTY_DELIMITER = "=";
+
+ /**
+ * The key or label for "position" in the preferences file
+ */
+ public static final String POSITION_KEY = "Position";
+
+ /**
+ * The key or label for "selection" in the preferences file
+ */
+ public static final String SELECTION_KEY = "Selection";
+
+ public static final String POSITION_MARKER =
+ POSITION_KEY + PROPERTY_DELIMITER;
+
+ public static final String SELECTION_MARKER =
+ SELECTION_KEY + PROPERTY_DELIMITER;
+
+ /**
+ * Initializes the application and the activity.
+ * 1) Sets the view
+ * 2) Reads the spinner's backing data from the string resources file
+ * 3) Instantiates a callback listener for handling selection from the
+ * spinner
+ * Notice that this method includes code that can be uncommented to force
+ * tests to fail.
+ *
+ * This method overrides the default onCreate() method for an Activity.
+ *
+ * @see android.app.Activity#onCreate(android.os.Bundle)
+ */
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+
+ /**
+ * derived classes that use onCreate() overrides must always call the super constructor
+ */
+ super.onCreate(savedInstanceState);
+
+ setContentView(R.layout.main);
+
+ Spinner spinner = (Spinner) findViewById(R.id.Spinner01);
+
+ /*
+ * Create a backing mLocalAdapter for the Spinner from a list of the
+ * planets. The list is defined by XML in the strings.xml file.
+ */
+
+ this.mAdapter = ArrayAdapter.createFromResource(this, R.array.Planets,
+ android.R.layout.simple_spinner_dropdown_item);
+
+ /*
+ * Attach the mLocalAdapter to the spinner.
+ */
+
+ spinner.setAdapter(this.mAdapter);
+
+ /*
+ * Create a listener that is triggered when Android detects the
+ * user has selected an item in the Spinner.
+ */
+
+ OnItemSelectedListener spinnerListener = new myOnItemSelectedListener(this,this.mAdapter);
+
+ /*
+ * Attach the listener to the Spinner.
+ */
+
+ spinner.setOnItemSelectedListener(spinnerListener);
+
+
+ /*
+ * To demonstrate a failure in the preConditions test,
+ * uncomment the following line.
+ * The test will fail because the selection listener for the
+ * Spinner is not set.
+ */
+ // spinner.setOnItemSelectedListener(null);
+
+ }
+
+
+ /**
+ * A callback listener that implements the
+ * {@link android.widget.AdapterView.OnItemSelectedListener} interface
+ * For views based on adapters, this interface defines the methods available
+ * when the user selects an item from the View.
+ *
+ */
+ public class myOnItemSelectedListener implements OnItemSelectedListener {
+
+ /*
+ * provide local instances of the mLocalAdapter and the mLocalContext
+ */
+
+ ArrayAdapter<CharSequence> mLocalAdapter;
+ Activity mLocalContext;
+
+ /**
+ * Constructor
+ * @param c - The activity that displays the Spinner.
+ * @param ad - The Adapter view that
+ * controls the Spinner.
+ * Instantiate a new listener object.
+ */
+ public myOnItemSelectedListener(Activity c, ArrayAdapter<CharSequence> ad) {
+
+ this.mLocalContext = c;
+ this.mLocalAdapter = ad;
+
+ }
+
+ /**
+ * When the user selects an item in the spinner, this method is invoked by the callback
+ * chain. Android calls the item selected listener for the spinner, which invokes the
+ * onItemSelected method.
+ *
+ * @see android.widget.AdapterView.OnItemSelectedListener#onItemSelected(
+ * android.widget.AdapterView, android.view.View, int, long)
+ * @param parent - the AdapterView for this listener
+ * @param v - the View for this listener
+ * @param pos - the 0-based position of the selection in the mLocalAdapter
+ * @param row - the 0-based row number of the selection in the View
+ */
+ public void onItemSelected(AdapterView<?> parent, View v, int pos, long row) {
+
+ SpinnerActivity.this.mPos = pos;
+ SpinnerActivity.this.mSelection = parent.getItemAtPosition(pos).toString();
+ /*
+ * Set the value of the text field in the UI
+ */
+ TextView resultText = (TextView)findViewById(R.id.SpinnerResult);
+ resultText.setText(SpinnerActivity.this.mSelection);
+ }
+
+ /**
+ * The definition of OnItemSelectedListener requires an override
+ * of onNothingSelected(), even though this implementation does not use it.
+ * @param parent - The View for this Listener
+ */
+ public void onNothingSelected(AdapterView<?> parent) {
+
+ // do nothing
+
+ }
+ }
+
+ /**
+ * Restores the current state of the spinner (which item is selected, and the value
+ * of that item).
+ * Since onResume() is always called when an Activity is starting, even if it is re-displaying
+ * after being hidden, it is the best place to restore state.
+ *
+ * Attempts to read the state from a preferences file. If this read fails,
+ * assume it was just installed, so do an initialization. Regardless, change the
+ * state of the spinner to be the previous position.
+ *
+ * @see android.app.Activity#onResume()
+ */
+ @Override
+ public void onResume() {
+
+ /*
+ * an override to onResume() must call the super constructor first.
+ */
+
+ super.onResume();
+
+ /*
+ * Try to read the preferences file. If not found, set the state to the desired initial
+ * values.
+ */
+
+ if (!readInstanceState(this)) setInitialState();
+
+ /*
+ * Set the spinner to the current state.
+ */
+
+ Spinner restoreSpinner = (Spinner)findViewById(R.id.Spinner01);
+ restoreSpinner.setSelection(getSpinnerPosition());
+
+ }
+
+ /**
+ * Store the current state of the spinner (which item is selected, and the value of that item).
+ * Since onPause() is always called when an Activity is about to be hidden, even if it is about
+ * to be destroyed, it is the best place to save state.
+ *
+ * Attempt to write the state to the preferences file. If this fails, notify the user.
+ *
+ * @see android.app.Activity#onPause()
+ */
+ @Override
+ public void onPause() {
+
+ /*
+ * an override to onPause() must call the super constructor first.
+ */
+
+ super.onPause();
+
+ /*
+ * Save the state to the preferences file. If it fails, display a Toast, noting the failure.
+ */
+
+ if (!writeInstanceState(this)) {
+ Toast.makeText(this,
+ "Failed to write state!", Toast.LENGTH_LONG).show();
+ }
+ }
+
+ /**
+ * Sets the initial state of the spinner when the application is first run.
+ */
+ public void setInitialState() {
+
+ this.mPos = DEFAULT_POSITION;
+
+ }
+
+ /**
+ * Read the previous state of the spinner from the preferences file
+ * @param c - The Activity's Context
+ */
+ public boolean readInstanceState(Context c) {
+
+ /*
+ * The preferences are stored in a SharedPreferences file. The abstract implementation of
+ * SharedPreferences is a "file" containing a hashmap. All instances of an application
+ * share the same instance of this file, which means that all instances of an application
+ * share the same preference settings.
+ */
+
+ /*
+ * Get the SharedPreferences object for this application
+ */
+
+ SharedPreferences p = c.getSharedPreferences(PREFERENCES_FILE, MODE_WORLD_READABLE);
+ /*
+ * Get the position and value of the spinner from the file, or a default value if the
+ * key-value pair does not exist.
+ */
+ this.mPos = p.getInt(POSITION_KEY, SpinnerActivity.DEFAULT_POSITION);
+ this.mSelection = p.getString(SELECTION_KEY, "");
+
+ /*
+ * SharedPreferences doesn't fail if the code tries to get a non-existent key. The
+ * most straightforward way to indicate success is to return the results of a test that
+ * SharedPreferences contained the position key.
+ */
+
+ return (p.contains(POSITION_KEY));
+
+ }
+
+ /**
+ * Write the application's current state to a properties repository.
+ * @param c - The Activity's Context
+ *
+ */
+ public boolean writeInstanceState(Context c) {
+
+ /*
+ * Get the SharedPreferences object for this application
+ */
+
+ SharedPreferences p =
+ c.getSharedPreferences(SpinnerActivity.PREFERENCES_FILE, MODE_WORLD_READABLE);
+
+ /*
+ * Get the editor for this object. The editor interface abstracts the implementation of
+ * updating the SharedPreferences object.
+ */
+
+ SharedPreferences.Editor e = p.edit();
+
+ /*
+ * Write the keys and values to the Editor
+ */
+
+ e.putInt(POSITION_KEY, this.mPos);
+ e.putString(SELECTION_KEY, this.mSelection);
+
+ /*
+ * Commit the changes. Return the result of the commit. The commit fails if Android
+ * failed to commit the changes to persistent storage.
+ */
+
+ return (e.commit());
+
+ }
+
+ public int getSpinnerPosition() {
+ return this.mPos;
+ }
+
+ public void setSpinnerPosition(int pos) {
+ this.mPos = pos;
+ }
+
+ public String getSpinnerSelection() {
+ return this.mSelection;
+ }
+
+ public void setSpinnerSelection(String selection) {
+ this.mSelection = selection;
+ }
+}
diff --git a/samples/SpinnerTest/AndroidManifest.xml b/samples/SpinnerTest/AndroidManifest.xml
new file mode 100644
index 0000000..e151d6e
--- /dev/null
+++ b/samples/SpinnerTest/AndroidManifest.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 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.
+-->
+
+<!--
+ Declare the contents of this Android application. The "namespace"
+ attribute brings in the Android platform namespace, and the
+ "package" attribute provides a unique Android name for the application.
+ If you use this file as a template in your own application, you must change
+ the package name from "com.android.example" to one that you own or have
+ control over.
+ -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="com.android.example.spinner.test"
+ android:versionCode="1"
+ android:versionName="1.0">
+ <application android:label="@string/app_name">
+ <!--
+ this package needs to link against the android.test library,
+ which is needed when building test cases.
+ -->
+ <uses-library android:name="android.test.runner"/>
+ </application>
+ <!--
+ This declares that this application uses the instrumentation test runner targeting
+ the package of com.android.example.spinner. To run the tests use the command:
+ "adb shell am instrument -w \
+ com.android.example.spinner.test/android.test.InstrumentationTestRunner"
+ -->
+ <instrumentation android:name="android.test.InstrumentationTestRunner"
+ android:targetPackage="com.android.example.spinner"
+ android:label="Tests for com.android.example.spinner"/>
+</manifest>
diff --git a/samples/SpinnerTest/_index.html b/samples/SpinnerTest/_index.html
new file mode 100644
index 0000000..7a176fd
--- /dev/null
+++ b/samples/SpinnerTest/_index.html
@@ -0,0 +1,9 @@
+<p>
+This sample is the test application for the
+<a href="../../../resources/tutorials/testing/activity_test.html">Activity
+ Testing Tutorial</a>. Refer to the tutorial text for a full explanation
+of this sample code.
+</p>
+<p>
+ This application does not have an Android GUI.
+</p>
diff --git a/samples/SpinnerTest/res/values/strings.xml b/samples/SpinnerTest/res/values/strings.xml
new file mode 100644
index 0000000..9721572
--- /dev/null
+++ b/samples/SpinnerTest/res/values/strings.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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.
+-->
+
+<!--
+ This defines the test application's name
+ -->
+<resources>
+ <string name="app_name">SpinnerTest</string>
+</resources>
diff --git a/samples/SpinnerTest/src/com/android/example/spinner/test/SpinnerActivityTest.java b/samples/SpinnerTest/src/com/android/example/spinner/test/SpinnerActivityTest.java
new file mode 100644
index 0000000..4c23317
--- /dev/null
+++ b/samples/SpinnerTest/src/com/android/example/spinner/test/SpinnerActivityTest.java
@@ -0,0 +1,345 @@
+/*
+ * Copyright (C) 2010 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 com.android.example.spinner.test;
+
+import com.android.example.spinner.SpinnerActivity;
+
+import android.app.Instrumentation;
+import android.test.ActivityInstrumentationTestCase2;
+import android.test.UiThreadTest;
+import android.view.KeyEvent;
+import android.widget.Spinner;
+import android.widget.SpinnerAdapter;
+import android.widget.TextView;
+
+/**
+ * Tests the example application Spinner. Uses the instrumentation test class
+ * {@link ActivityInstrumentationTestCase2} as its base class. The tests include
+ * <ol>
+ * <li>test initial conditions</li>
+ * <li>test the UI</li>
+ * <li>state management - preserving state after the app is shut down and restarted, preserving
+ * state after the app is hidden (paused) and re-displayed (resumed)</li>
+ * </ol>
+ *
+ * Demonstrates the use of JUnit setUp() and assert() methods.
+ */
+public class SpinnerActivityTest extends ActivityInstrumentationTestCase2<SpinnerActivity> {
+
+ // Number of items in the spinner's backing mLocalAdapter
+
+ public static final int ADAPTER_COUNT = 9;
+
+ // The location of Saturn in the backing mLocalAdapter array (0-based)
+
+ public static final int TEST_POSITION = 5;
+
+ // Set the initial position of the spinner to zero
+
+ public static final int INITIAL_POSITION = 0;
+
+ // The initial position corresponds to Mercury
+
+ public static final String INITIAL_SELECTION = "Mercury";
+
+ // Test values of position and selection for the testStateDestroy test
+
+ public static final int TEST_STATE_DESTROY_POSITION = 2;
+ public static final String TEST_STATE_DESTROY_SELECTION = "Earth";
+
+ // Test values of position and selection for the testStatePause test
+
+ public static final int TEST_STATE_PAUSE_POSITION = 4;
+ public static final String TEST_STATE_PAUSE_SELECTION = "Jupiter";
+
+ // The Application object for the application under test
+
+ private SpinnerActivity mActivity;
+
+ // String displayed in the spinner in the app under test
+
+ private String mSelection;
+
+ // The currently selected position in the spinner in the app under test
+
+ private int mPos;
+
+ /*
+ * The Spinner object in the app under test. Used with instrumentation to control the
+ * app under test.
+ */
+
+ private Spinner mSpinner;
+
+ /*
+ * The data backing the Spinner in the app under test.
+ */
+
+ private SpinnerAdapter mPlanetData;
+
+ /**
+ * Constructor for the test class. Required by Android test classes. The constructor
+ * must call the super constructor, providing the Android package name of the app under test
+ * and the Java class name of the activity in that application that handles the MAIN intent.
+ */
+ public SpinnerActivityTest() {
+
+ super("com.android.example.spinner", SpinnerActivity.class);
+ }
+
+ /**
+ * Sets up the test environment before each test.
+ * @see android.test.ActivityInstrumentationTestCase2#setUp()
+ */
+ @Override
+ protected void setUp() throws Exception {
+
+ /*
+ * Call the super constructor (required by JUnit)
+ */
+
+ super.setUp();
+
+ /*
+ * prepare to send key events to the app under test by turning off touch mode.
+ * Must be done before the first call to getActivity()
+ */
+
+ setActivityInitialTouchMode(false);
+
+ /*
+ * Start the app under test by starting its main activity. The test runner already knows
+ * which activity this is from the call to the super constructor, as mentioned
+ * previously. The tests can now use instrumentation to directly access the main
+ * activity through mActivity.
+ */
+ mActivity = getActivity();
+
+ /*
+ * Get references to objects in the application under test. These are
+ * tested to ensure that the app under test has initialized correctly.
+ */
+
+ mSpinner = (Spinner)mActivity.findViewById(com.android.example.spinner.R.id.Spinner01);
+
+ mPlanetData = mSpinner.getAdapter();
+
+ }
+
+ /**
+ * Tests the initial values of key objects in the app under test, to ensure the initial
+ * conditions make sense. If one of these is not initialized correctly, then subsequent
+ * tests are suspect and should be ignored.
+ */
+
+ public void testPreconditions() {
+
+ /*
+ * An example of an initialization test. Assert that the item select listener in
+ * the main Activity is not null (has been set to a valid callback)
+ */
+ assertTrue(mSpinner.getOnItemSelectedListener() != null);
+
+ /*
+ * Test that the spinner's backing mLocalAdapter was initialized correctly.
+ */
+
+ assertTrue(mPlanetData != null);
+
+ /*
+ * Also ensure that the backing mLocalAdapter has the correct number of entries.
+ */
+
+ assertEquals(mPlanetData.getCount(), ADAPTER_COUNT);
+ }
+
+ /*
+ * Tests the UI of the main activity. Sends key events (keystrokes) to the UI, then checks
+ * if the resulting spinner state is consistent with the attempted selection.
+ */
+ public void testSpinnerUI() {
+
+ /*
+ * Request focus for the spinner widget in the application under test,
+ * and set its initial position. This code interacts with the app's View
+ * so it has to run on the app's thread not the test's thread.
+ *
+ * To do this, pass the necessary code to the application with
+ * runOnUiThread(). The parameter is an anonymous Runnable object that
+ * contains the Java statements put in it by its run() method.
+ */
+ mActivity.runOnUiThread(
+ new Runnable() {
+ public void run() {
+ mSpinner.requestFocus();
+ mSpinner.setSelection(INITIAL_POSITION);
+ }
+ }
+ );
+
+ // Activate the spinner by clicking the center keypad key
+
+ this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);
+
+ // send 5 down arrow keys to the spinner
+
+ for (int i = 1; i <= TEST_POSITION; i++) {
+
+ this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
+ }
+
+ // select the item at the current spinner position
+
+ this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);
+
+ // get the position of the selected item
+
+ mPos = mSpinner.getSelectedItemPosition();
+
+ /*
+ * from the spinner's data mLocalAdapter, get the object at the selected position
+ * (this is a String value)
+ */
+
+ mSelection = (String)mSpinner.getItemAtPosition(mPos);
+
+ /*
+ * Get the TextView widget that displays the result of selecting an item from the spinner
+ */
+
+ TextView resultView =
+ (TextView) mActivity.findViewById(com.android.example.spinner.R.id.SpinnerResult);
+
+ // Get the String value in the EditText object
+
+ String resultText = (String) resultView.getText();
+
+ /*
+ * Confirm that the EditText contains the same value as the data in the mLocalAdapter
+ */
+
+ assertEquals(resultText,mSelection);
+ }
+
+ /*
+ * Tests that the activity under test maintains the spinner state when the activity halts
+ * and then restarts (for example, if the device reboots). Sets the spinner to a
+ * certain state, calls finish() on the activity, restarts the activity, and then
+ * checks that the spinner has the same state.
+ *
+ */
+
+ public void testStateDestroy() {
+
+ /*
+ * Set the position and value of the spinner in the Activity. The test runner's
+ * instrumentation enables this by running the test app and the main app in the same
+ * process.
+ */
+
+
+ mActivity.setSpinnerPosition(TEST_STATE_DESTROY_POSITION);
+
+ mActivity.setSpinnerSelection(TEST_STATE_DESTROY_SELECTION);
+
+ // Halt the Activity by calling Activity.finish() on it
+
+ mActivity.finish();
+
+ // Restart the activity by calling ActivityInstrumentationTestCase2.getActivity()
+
+ mActivity = this.getActivity();
+
+ /*
+ * Get the current position and selection from the activity.
+ */
+
+ int currentPosition = mActivity.getSpinnerPosition();
+ String currentSelection = mActivity.getSpinnerSelection();
+
+ // test that they are the same.
+
+ assertEquals(TEST_STATE_DESTROY_POSITION, currentPosition);
+
+ assertEquals(TEST_STATE_DESTROY_SELECTION, currentSelection);
+ }
+
+ /*
+ * Tests that the activity under test maintains the spinner's state when the activity is
+ * paused and then resumed.
+ *
+ * Calls the activity's onResume() method. Changes the spinner's state by
+ * altering the activity's View. This means the test must run
+ * on the UI Thread. All the statements in the test method may be run on
+ * that thread, so instead of using the runOnUiThread() method, the
+ * @UiThreadTest is used.
+ */
+ @UiThreadTest
+
+ public void testStatePause() {
+
+ /*
+ * Get the instrumentation object for this application. This object
+ * does all the instrumentation work for the test runner
+ */
+
+ Instrumentation instr = this.getInstrumentation();
+
+ /*
+ * Set the activity's fields for the position and value of the spinner
+ */
+
+ mActivity.setSpinnerPosition(TEST_STATE_PAUSE_POSITION);
+
+ mActivity.setSpinnerSelection(TEST_STATE_PAUSE_SELECTION);
+
+ /*
+ * Use the instrumentation to onPause() on the currently running Activity.
+ * This analogous to calling finish() in the testStateDestroy() method.
+ * This way demonstrates using the test class' instrumentation.
+ */
+
+ instr.callActivityOnPause(mActivity);
+
+ /*
+ * Set the spinner to a test position
+ */
+
+ mActivity.setSpinnerPosition(0);
+
+ mActivity.setSpinnerSelection("");
+
+ /*
+ * Call the activity's onResume() method. This forces the activity
+ * to restore its state.
+ */
+
+ instr.callActivityOnResume(mActivity);
+
+ /*
+ * Get the current state of the spinner
+ */
+
+ int currentPosition = mActivity.getSpinnerPosition();
+
+ String currentSelection = mActivity.getSpinnerSelection();
+
+ assertEquals(TEST_STATE_PAUSE_POSITION,currentPosition);
+ assertEquals(TEST_STATE_PAUSE_SELECTION,currentSelection);
+ }
+
+}