Update browseable samples for lmp-docs
Synced to commit df5e5013422b81b4fd05c0ac9fd964b13624847a. Includes new samples for Android Auto. Change-Id: I3fec46e2a6b3f196682a92f1afd91eb682dc2dc1
This commit is contained in:
Trevor Johns
@@ -0,0 +1,585 @@
|
||||
/*
|
||||
* Copyright (C) 2014 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.example.android.wearable.quiz;
|
||||
|
||||
import static com.example.android.wearable.quiz.Constants.ANSWERS;
|
||||
import static com.example.android.wearable.quiz.Constants.CHOSEN_ANSWER_CORRECT;
|
||||
import static com.example.android.wearable.quiz.Constants.CORRECT_ANSWER_INDEX;
|
||||
import static com.example.android.wearable.quiz.Constants.NUM_CORRECT;
|
||||
import static com.example.android.wearable.quiz.Constants.NUM_INCORRECT;
|
||||
import static com.example.android.wearable.quiz.Constants.NUM_SKIPPED;
|
||||
import static com.example.android.wearable.quiz.Constants.QUESTION;
|
||||
import static com.example.android.wearable.quiz.Constants.QUESTION_INDEX;
|
||||
import static com.example.android.wearable.quiz.Constants.QUESTION_WAS_ANSWERED;
|
||||
import static com.example.android.wearable.quiz.Constants.QUESTION_WAS_DELETED;
|
||||
import static com.example.android.wearable.quiz.Constants.QUIZ_ENDED_PATH;
|
||||
import static com.example.android.wearable.quiz.Constants.QUIZ_EXITED_PATH;
|
||||
import static com.example.android.wearable.quiz.Constants.RESET_QUIZ_PATH;
|
||||
|
||||
import android.app.Activity;
|
||||
import android.graphics.Color;
|
||||
import android.net.Uri;
|
||||
import android.os.Bundle;
|
||||
import android.util.Log;
|
||||
import android.view.LayoutInflater;
|
||||
import android.view.View;
|
||||
import android.widget.Button;
|
||||
import android.widget.EditText;
|
||||
import android.widget.LinearLayout;
|
||||
import android.widget.RadioGroup;
|
||||
import android.widget.TextView;
|
||||
|
||||
import com.google.android.gms.common.ConnectionResult;
|
||||
import com.google.android.gms.common.api.GoogleApiClient;
|
||||
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
|
||||
import com.google.android.gms.common.api.ResultCallback;
|
||||
import com.google.android.gms.common.data.FreezableUtils;
|
||||
import com.google.android.gms.wearable.DataApi;
|
||||
import com.google.android.gms.wearable.DataEvent;
|
||||
import com.google.android.gms.wearable.DataEventBuffer;
|
||||
import com.google.android.gms.wearable.DataItem;
|
||||
import com.google.android.gms.wearable.DataItemBuffer;
|
||||
import com.google.android.gms.wearable.DataMap;
|
||||
import com.google.android.gms.wearable.DataMapItem;
|
||||
import com.google.android.gms.wearable.MessageApi;
|
||||
import com.google.android.gms.wearable.MessageEvent;
|
||||
import com.google.android.gms.wearable.Node;
|
||||
import com.google.android.gms.wearable.NodeApi;
|
||||
import com.google.android.gms.wearable.PutDataMapRequest;
|
||||
import com.google.android.gms.wearable.PutDataRequest;
|
||||
import com.google.android.gms.wearable.Wearable;
|
||||
|
||||
import org.json.JSONArray;
|
||||
import org.json.JSONException;
|
||||
import org.json.JSONObject;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Collections;
|
||||
import java.util.HashMap;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
import java.util.PriorityQueue;
|
||||
|
||||
/**
|
||||
* Allows the user to create questions, which will be put as notifications on the watch's stream.
|
||||
* The status of questions will be updated on the phone when the user answers them.
|
||||
*/
|
||||
public class MainActivity extends Activity implements DataApi.DataListener,
|
||||
MessageApi.MessageListener, ConnectionCallbacks,
|
||||
GoogleApiClient.OnConnectionFailedListener {
|
||||
|
||||
private static final String TAG = "ExampleQuizApp";
|
||||
private static final String QUIZ_JSON_FILE = "Quiz.json";
|
||||
|
||||
// Various UI components.
|
||||
private EditText questionEditText;
|
||||
private EditText choiceAEditText;
|
||||
private EditText choiceBEditText;
|
||||
private EditText choiceCEditText;
|
||||
private EditText choiceDEditText;
|
||||
private RadioGroup choicesRadioGroup;
|
||||
private TextView quizStatus;
|
||||
private LinearLayout quizButtons;
|
||||
private LinearLayout questionsContainer;
|
||||
private Button readQuizFromFileButton;
|
||||
private Button resetQuizButton;
|
||||
|
||||
private GoogleApiClient mGoogleApiClient;
|
||||
private PriorityQueue<Question> mFutureQuestions;
|
||||
private int mQuestionIndex = 0;
|
||||
private boolean mHasQuestionBeenAsked = false;
|
||||
|
||||
// Data to display in end report.
|
||||
private int mNumCorrect = 0;
|
||||
private int mNumIncorrect = 0;
|
||||
private int mNumSkipped = 0;
|
||||
|
||||
private static final Map<Integer, Integer> radioIdToIndex;
|
||||
|
||||
static {
|
||||
Map<Integer, Integer> temp = new HashMap<Integer, Integer>(4);
|
||||
temp.put(R.id.choice_a_radio, 0);
|
||||
temp.put(R.id.choice_b_radio, 1);
|
||||
temp.put(R.id.choice_c_radio, 2);
|
||||
temp.put(R.id.choice_d_radio, 3);
|
||||
radioIdToIndex = Collections.unmodifiableMap(temp);
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void onCreate(Bundle savedInstanceState) {
|
||||
super.onCreate(savedInstanceState);
|
||||
setContentView(R.layout.main);
|
||||
|
||||
mGoogleApiClient = new GoogleApiClient.Builder(this)
|
||||
.addApi(Wearable.API)
|
||||
.addConnectionCallbacks(this)
|
||||
.addOnConnectionFailedListener(this)
|
||||
.build();
|
||||
mFutureQuestions = new PriorityQueue<Question>(10);
|
||||
|
||||
// Find UI components to be used later.
|
||||
questionEditText = (EditText) findViewById(R.id.question_text);
|
||||
choiceAEditText = (EditText) findViewById(R.id.choice_a_text);
|
||||
choiceBEditText = (EditText) findViewById(R.id.choice_b_text);
|
||||
choiceCEditText = (EditText) findViewById(R.id.choice_c_text);
|
||||
choiceDEditText = (EditText) findViewById(R.id.choice_d_text);
|
||||
choicesRadioGroup = (RadioGroup) findViewById(R.id.choices_radio_group);
|
||||
quizStatus = (TextView) findViewById(R.id.quiz_status);
|
||||
quizButtons = (LinearLayout) findViewById(R.id.quiz_buttons);
|
||||
questionsContainer = (LinearLayout) findViewById(R.id.questions_container);
|
||||
readQuizFromFileButton = (Button) findViewById(R.id.read_quiz_from_file_button);
|
||||
resetQuizButton = (Button) findViewById(R.id.reset_quiz_button);
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void onStart() {
|
||||
super.onStart();
|
||||
if (!mGoogleApiClient.isConnected()) {
|
||||
mGoogleApiClient.connect();
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void onStop() {
|
||||
Wearable.DataApi.removeListener(mGoogleApiClient, this);
|
||||
Wearable.MessageApi.removeListener(mGoogleApiClient, this);
|
||||
|
||||
// Tell the wearable to end the quiz (counting unanswered questions as skipped), and then
|
||||
// disconnect mGoogleApiClient.
|
||||
DataMap dataMap = new DataMap();
|
||||
dataMap.putInt(NUM_CORRECT, mNumCorrect);
|
||||
dataMap.putInt(NUM_INCORRECT, mNumIncorrect);
|
||||
if (mHasQuestionBeenAsked) {
|
||||
mNumSkipped += 1;
|
||||
}
|
||||
mNumSkipped += mFutureQuestions.size();
|
||||
dataMap.putInt(NUM_SKIPPED, mNumSkipped);
|
||||
if (mNumCorrect + mNumIncorrect + mNumSkipped > 0) {
|
||||
sendMessageToWearable(QUIZ_EXITED_PATH, dataMap.toByteArray());
|
||||
}
|
||||
|
||||
clearQuizStatus();
|
||||
super.onStop();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onConnected(Bundle connectionHint) {
|
||||
Wearable.DataApi.addListener(mGoogleApiClient, this);
|
||||
Wearable.MessageApi.addListener(mGoogleApiClient, this);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onConnectionSuspended(int cause) {
|
||||
// Ignore
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onConnectionFailed(ConnectionResult result) {
|
||||
Log.e(TAG, "Failed to connect to Google Play Services");
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onMessageReceived(MessageEvent messageEvent) {
|
||||
if (messageEvent.getPath().equals(RESET_QUIZ_PATH)) {
|
||||
runOnUiThread(new Runnable() {
|
||||
@Override
|
||||
public void run() {
|
||||
resetQuiz(null);
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Used to ensure questions with smaller indexes come before questions with larger
|
||||
* indexes. For example, question0 should come before question1.
|
||||
*/
|
||||
private static class Question implements Comparable<Question> {
|
||||
private String question;
|
||||
private int questionIndex;
|
||||
private String[] answers;
|
||||
private int correctAnswerIndex;
|
||||
|
||||
public Question(String question, int questionIndex, String[] answers,
|
||||
int correctAnswerIndex) {
|
||||
this.question = question;
|
||||
this.questionIndex = questionIndex;
|
||||
this.answers = answers;
|
||||
this.correctAnswerIndex = correctAnswerIndex;
|
||||
}
|
||||
|
||||
public static Question fromJson(JSONObject questionObject, int questionIndex)
|
||||
throws JSONException {
|
||||
String question = questionObject.getString(JsonUtils.JSON_FIELD_QUESTION);
|
||||
JSONArray answersJsonArray = questionObject.getJSONArray(JsonUtils.JSON_FIELD_ANSWERS);
|
||||
String[] answers = new String[JsonUtils.NUM_ANSWER_CHOICES];
|
||||
for (int j = 0; j < answersJsonArray.length(); j++) {
|
||||
answers[j] = answersJsonArray.getString(j);
|
||||
}
|
||||
int correctIndex = questionObject.getInt(JsonUtils.JSON_FIELD_CORRECT_INDEX);
|
||||
return new Question(question, questionIndex, answers, correctIndex);
|
||||
}
|
||||
|
||||
@Override
|
||||
public int compareTo(Question that) {
|
||||
return this.questionIndex - that.questionIndex;
|
||||
}
|
||||
|
||||
public PutDataRequest toPutDataRequest() {
|
||||
PutDataMapRequest request = PutDataMapRequest.create("/question/" + questionIndex);
|
||||
DataMap dataMap = request.getDataMap();
|
||||
dataMap.putString(QUESTION, question);
|
||||
dataMap.putInt(QUESTION_INDEX, questionIndex);
|
||||
dataMap.putStringArray(ANSWERS, answers);
|
||||
dataMap.putInt(CORRECT_ANSWER_INDEX, correctAnswerIndex);
|
||||
return request.asPutDataRequest();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Create a quiz, as defined in Quiz.json, when the user clicks on "Read quiz from file."
|
||||
* @throws IOException
|
||||
*/
|
||||
public void readQuizFromFile(View view) throws IOException, JSONException {
|
||||
clearQuizStatus();
|
||||
JSONObject jsonObject = JsonUtils.loadJsonFile(this, QUIZ_JSON_FILE);
|
||||
JSONArray jsonArray = jsonObject.getJSONArray(JsonUtils.JSON_FIELD_QUESTIONS);
|
||||
for (int i = 0; i < jsonArray.length(); i++) {
|
||||
JSONObject questionObject = jsonArray.getJSONObject(i);
|
||||
Question question = Question.fromJson(questionObject, mQuestionIndex++);
|
||||
addQuestionDataItem(question);
|
||||
setNewQuestionStatus(question.question);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds a question (with answer choices) when user clicks on "Add Question."
|
||||
*/
|
||||
public void addQuestion(View view) {
|
||||
// Retrieve the question and answers supplied by the user.
|
||||
String question = questionEditText.getText().toString();
|
||||
String[] answers = new String[4];
|
||||
answers[0] = choiceAEditText.getText().toString();
|
||||
answers[1] = choiceBEditText.getText().toString();
|
||||
answers[2] = choiceCEditText.getText().toString();
|
||||
answers[3] = choiceDEditText.getText().toString();
|
||||
int correctAnswerIndex = radioIdToIndex.get(choicesRadioGroup.getCheckedRadioButtonId());
|
||||
|
||||
addQuestionDataItem(new Question(question, mQuestionIndex++, answers, correctAnswerIndex));
|
||||
setNewQuestionStatus(question);
|
||||
|
||||
// Clear the edit boxes to let the user input a new question.
|
||||
questionEditText.setText("");
|
||||
choiceAEditText.setText("");
|
||||
choiceBEditText.setText("");
|
||||
choiceCEditText.setText("");
|
||||
choiceDEditText.setText("");
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds the questions (and answers) to the wearable's stream by creating a Data Item
|
||||
* that will be received on the wearable, which will create corresponding notifications.
|
||||
*/
|
||||
private void addQuestionDataItem(Question question) {
|
||||
if (!mHasQuestionBeenAsked) {
|
||||
// Ask the question now.
|
||||
Wearable.DataApi.putDataItem(mGoogleApiClient, question.toPutDataRequest());
|
||||
setHasQuestionBeenAsked(true);
|
||||
} else {
|
||||
// Enqueue the question to be asked in the future.
|
||||
mFutureQuestions.add(question);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the question's status to be the default "unanswered." This will be updated when the
|
||||
* user chooses an answer for the question on the wearable.
|
||||
*/
|
||||
private void setNewQuestionStatus(String question) {
|
||||
quizStatus.setVisibility(View.VISIBLE);
|
||||
quizButtons.setVisibility(View.VISIBLE);
|
||||
LayoutInflater inflater = LayoutInflater.from(this);
|
||||
View questionStatusElem = inflater.inflate(R.layout.question_status_element, null, false);
|
||||
((TextView) questionStatusElem.findViewById(R.id.question)).setText(question);
|
||||
((TextView) questionStatusElem.findViewById(R.id.status))
|
||||
.setText(R.string.question_unanswered);
|
||||
questionsContainer.addView(questionStatusElem);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onDataChanged(DataEventBuffer dataEvents) {
|
||||
final List<DataEvent> events = FreezableUtils.freezeIterable(dataEvents);
|
||||
dataEvents.close();
|
||||
runOnUiThread(new Runnable() {
|
||||
@Override
|
||||
public void run() {
|
||||
for (DataEvent event : events) {
|
||||
if (event.getType() == DataEvent.TYPE_CHANGED) {
|
||||
DataMap dataMap = DataMapItem.fromDataItem(event.getDataItem())
|
||||
.getDataMap();
|
||||
boolean questionWasAnswered = dataMap.getBoolean(QUESTION_WAS_ANSWERED);
|
||||
boolean questionWasDeleted = dataMap.getBoolean(QUESTION_WAS_DELETED);
|
||||
if (questionWasAnswered) {
|
||||
// Update the answered question's status.
|
||||
int questionIndex = dataMap.getInt(QUESTION_INDEX);
|
||||
boolean questionCorrect = dataMap.getBoolean(CHOSEN_ANSWER_CORRECT);
|
||||
updateQuestionStatus(questionIndex, questionCorrect);
|
||||
askNextQuestionIfExists();
|
||||
} else if (questionWasDeleted) {
|
||||
// Update the deleted question's status by marking it as left blank.
|
||||
int questionIndex = dataMap.getInt(QUESTION_INDEX);
|
||||
markQuestionLeftBlank(questionIndex);
|
||||
askNextQuestionIfExists();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Updates the given question based on whether it was answered correctly or not.
|
||||
* This involves changing the question's text color and changing the status text for it.
|
||||
*/
|
||||
public void updateQuestionStatus(int questionIndex, boolean questionCorrect) {
|
||||
LinearLayout questionStatusElement = (LinearLayout)
|
||||
questionsContainer.getChildAt(questionIndex);
|
||||
TextView questionText = (TextView) questionStatusElement.findViewById(R.id.question);
|
||||
TextView questionStatus = (TextView) questionStatusElement.findViewById(R.id.status);
|
||||
if (questionCorrect) {
|
||||
questionText.setTextColor(Color.GREEN);
|
||||
questionStatus.setText(R.string.question_correct);
|
||||
mNumCorrect++;
|
||||
} else {
|
||||
questionText.setTextColor(Color.RED);
|
||||
questionStatus.setText(R.string.question_incorrect);
|
||||
mNumIncorrect++;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Marks a question as "left blank" when its corresponding question notification is deleted.
|
||||
*/
|
||||
private void markQuestionLeftBlank(int index) {
|
||||
LinearLayout questionStatusElement = (LinearLayout) questionsContainer.getChildAt(index);
|
||||
if (questionStatusElement != null) {
|
||||
TextView questionText = (TextView) questionStatusElement.findViewById(R.id.question);
|
||||
TextView questionStatus = (TextView) questionStatusElement.findViewById(R.id.status);
|
||||
if (questionStatus.getText().equals(getString(R.string.question_unanswered))) {
|
||||
questionText.setTextColor(Color.YELLOW);
|
||||
questionStatus.setText(R.string.question_left_blank);
|
||||
mNumSkipped++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Asks the next enqueued question if it exists, otherwise ends the quiz.
|
||||
*/
|
||||
private void askNextQuestionIfExists() {
|
||||
if (mFutureQuestions.isEmpty()) {
|
||||
// Quiz has been completed - send message to wearable to display end report.
|
||||
DataMap dataMap = new DataMap();
|
||||
dataMap.putInt(NUM_CORRECT, mNumCorrect);
|
||||
dataMap.putInt(NUM_INCORRECT, mNumIncorrect);
|
||||
dataMap.putInt(NUM_SKIPPED, mNumSkipped);
|
||||
sendMessageToWearable(QUIZ_ENDED_PATH, dataMap.toByteArray());
|
||||
setHasQuestionBeenAsked(false);
|
||||
} else {
|
||||
// Ask next question by putting a DataItem that will be received on the wearable.
|
||||
Wearable.DataApi.putDataItem(mGoogleApiClient,
|
||||
mFutureQuestions.remove().toPutDataRequest());
|
||||
setHasQuestionBeenAsked(true);
|
||||
}
|
||||
}
|
||||
|
||||
private void sendMessageToWearable(final String path, final byte[] data) {
|
||||
Wearable.NodeApi.getConnectedNodes(mGoogleApiClient).setResultCallback(
|
||||
new ResultCallback<NodeApi.GetConnectedNodesResult>() {
|
||||
@Override
|
||||
public void onResult(NodeApi.GetConnectedNodesResult nodes) {
|
||||
for (Node node : nodes.getNodes()) {
|
||||
Wearable.MessageApi.sendMessage(mGoogleApiClient, node.getId(), path, data);
|
||||
}
|
||||
|
||||
if (path.equals(QUIZ_EXITED_PATH) && mGoogleApiClient.isConnected()) {
|
||||
mGoogleApiClient.disconnect();
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Resets the current quiz when Reset Quiz is pressed.
|
||||
*/
|
||||
public void resetQuiz(View view) {
|
||||
// Reset quiz status in phone layout.
|
||||
for(int i = 0; i < questionsContainer.getChildCount(); i++) {
|
||||
LinearLayout questionStatusElement = (LinearLayout) questionsContainer.getChildAt(i);
|
||||
TextView questionText = (TextView) questionStatusElement.findViewById(R.id.question);
|
||||
TextView questionStatus = (TextView) questionStatusElement.findViewById(R.id.status);
|
||||
questionText.setTextColor(Color.WHITE);
|
||||
questionStatus.setText(R.string.question_unanswered);
|
||||
}
|
||||
// Reset data items and notifications on wearable.
|
||||
if (mGoogleApiClient.isConnected()) {
|
||||
Wearable.DataApi.getDataItems(mGoogleApiClient)
|
||||
.setResultCallback(new ResultCallback<DataItemBuffer>() {
|
||||
@Override
|
||||
public void onResult(DataItemBuffer result) {
|
||||
if (result.getStatus().isSuccess()) {
|
||||
List<DataItem> dataItemList = FreezableUtils.freezeIterable(result);
|
||||
result.close();
|
||||
resetDataItems(dataItemList);
|
||||
} else {
|
||||
if (Log.isLoggable(TAG, Log.DEBUG)) {
|
||||
Log.d(TAG, "Reset quiz: failed to get Data Items to reset");
|
||||
}
|
||||
}
|
||||
result.close();
|
||||
}
|
||||
});
|
||||
} else {
|
||||
Log.e(TAG, "Failed to reset data items because client is disconnected from "
|
||||
+ "Google Play Services");
|
||||
}
|
||||
setHasQuestionBeenAsked(false);
|
||||
mNumCorrect = 0;
|
||||
mNumIncorrect = 0;
|
||||
mNumSkipped = 0;
|
||||
}
|
||||
|
||||
private void resetDataItems(List<DataItem> dataItemList) {
|
||||
if (mGoogleApiClient.isConnected()) {
|
||||
for (final DataItem dataItem : dataItemList) {
|
||||
final Uri dataItemUri = dataItem.getUri();
|
||||
Wearable.DataApi.getDataItem(mGoogleApiClient, dataItemUri)
|
||||
.setResultCallback(new ResetDataItemCallback());
|
||||
}
|
||||
} else {
|
||||
Log.e(TAG, "Failed to reset data items because client is disconnected from "
|
||||
+ "Google Play Services");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Callback that marks a DataItem, which represents a question, as unanswered and not deleted.
|
||||
*/
|
||||
private class ResetDataItemCallback implements ResultCallback<DataApi.DataItemResult> {
|
||||
@Override
|
||||
public void onResult(DataApi.DataItemResult dataItemResult) {
|
||||
if (dataItemResult.getStatus().isSuccess()) {
|
||||
PutDataMapRequest request = PutDataMapRequest.createFromDataMapItem(
|
||||
DataMapItem.fromDataItem(dataItemResult.getDataItem()));
|
||||
DataMap dataMap = request.getDataMap();
|
||||
dataMap.putBoolean(QUESTION_WAS_ANSWERED, false);
|
||||
dataMap.putBoolean(QUESTION_WAS_DELETED, false);
|
||||
if (!mHasQuestionBeenAsked && dataMap.getInt(QUESTION_INDEX) == 0) {
|
||||
// Ask the first question now.
|
||||
Wearable.DataApi.putDataItem(mGoogleApiClient, request.asPutDataRequest());
|
||||
setHasQuestionBeenAsked(true);
|
||||
} else {
|
||||
// Enqueue future questions.
|
||||
mFutureQuestions.add(new Question(dataMap.getString(QUESTION),
|
||||
dataMap.getInt(QUESTION_INDEX), dataMap.getStringArray(ANSWERS),
|
||||
dataMap.getInt(CORRECT_ANSWER_INDEX)));
|
||||
}
|
||||
} else {
|
||||
Log.e(TAG, "Failed to reset data item " + dataItemResult.getDataItem().getUri());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Clears the current quiz when user clicks on "New Quiz."
|
||||
* On this end, this involves clearing the quiz status layout and deleting all DataItems. The
|
||||
* wearable will then remove any outstanding question notifications upon receiving this change.
|
||||
*/
|
||||
public void newQuiz(View view) {
|
||||
clearQuizStatus();
|
||||
if (mGoogleApiClient.isConnected()) {
|
||||
Wearable.DataApi.getDataItems(mGoogleApiClient)
|
||||
.setResultCallback(new ResultCallback<DataItemBuffer>() {
|
||||
@Override
|
||||
public void onResult(DataItemBuffer result) {
|
||||
if (result.getStatus().isSuccess()) {
|
||||
List<Uri> dataItemUriList = new ArrayList<Uri>();
|
||||
for (final DataItem dataItem : result) {
|
||||
dataItemUriList.add(dataItem.getUri());
|
||||
}
|
||||
result.close();
|
||||
deleteDataItems(dataItemUriList);
|
||||
} else {
|
||||
if (Log.isLoggable(TAG, Log.DEBUG)) {
|
||||
Log.d(TAG, "Clear quiz: failed to get Data Items for deletion");
|
||||
}
|
||||
}
|
||||
result.close();
|
||||
}
|
||||
});
|
||||
} else {
|
||||
Log.e(TAG, "Failed to delete data items because client is disconnected from "
|
||||
+ "Google Play Services");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes quiz status views (i.e. the views describing the status of each question).
|
||||
*/
|
||||
private void clearQuizStatus() {
|
||||
questionsContainer.removeAllViews();
|
||||
quizStatus.setVisibility(View.INVISIBLE);
|
||||
quizButtons.setVisibility(View.INVISIBLE);
|
||||
setHasQuestionBeenAsked(false);
|
||||
mFutureQuestions.clear();
|
||||
mQuestionIndex = 0;
|
||||
mNumCorrect = 0;
|
||||
mNumIncorrect = 0;
|
||||
mNumSkipped = 0;
|
||||
}
|
||||
|
||||
private void deleteDataItems(List<Uri> dataItemUriList) {
|
||||
if (mGoogleApiClient.isConnected()) {
|
||||
for (final Uri dataItemUri : dataItemUriList) {
|
||||
Wearable.DataApi.deleteDataItems(mGoogleApiClient, dataItemUri)
|
||||
.setResultCallback(new ResultCallback<DataApi.DeleteDataItemsResult>() {
|
||||
@Override
|
||||
public void onResult(DataApi.DeleteDataItemsResult deleteResult) {
|
||||
if (Log.isLoggable(TAG, Log.DEBUG)) {
|
||||
if (deleteResult.getStatus().isSuccess()) {
|
||||
Log.d(TAG, "Successfully deleted data item " + dataItemUri);
|
||||
} else {
|
||||
Log.d(TAG, "Failed to delete data item " + dataItemUri);
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
} else {
|
||||
Log.e(TAG, "Failed to delete data items because client is disconnected from "
|
||||
+ "Google Play Services");
|
||||
}
|
||||
}
|
||||
|
||||
private void setHasQuestionBeenAsked(boolean b) {
|
||||
mHasQuestionBeenAsked = b;
|
||||
// Only let user click on Reset or Read from file if they have answered all the questions.
|
||||
readQuizFromFileButton.setEnabled(!mHasQuestionBeenAsked);
|
||||
resetQuizButton.setEnabled(!mHasQuestionBeenAsked);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user