Java 如何分别在另一个xml和类中从另一个类及其TextView和实现触发计时器?
我正在做安卓测验,希望我的每个问题答案页面都有计时器。我有菜单页面在我的测验和播放按钮开始游戏。我希望这个计时器在我点击播放按钮时被触发。为此,我必须创建表示菜单页面的有问题的XML文本视图。和QuestionActivity类中的实现,它代表了我的第一个问题页面。我也发布了WelcomeActivity类,尽管它在这个问题上没有任何作用 播放按钮布局Java 如何分别在另一个xml和类中从另一个类及其TextView和实现触发计时器?,java,android,xml,timer,Java,Android,Xml,Timer,我正在做安卓测验,希望我的每个问题答案页面都有计时器。我有菜单页面在我的测验和播放按钮开始游戏。我希望这个计时器在我点击播放按钮时被触发。为此,我必须创建表示菜单页面的有问题的XML文本视图。和QuestionActivity类中的实现,它代表了我的第一个问题页面。我也发布了WelcomeActivity类,尽管它在这个问题上没有任何作用 播放按钮布局 <Button android:text="Play" android:id="@+i
<Button
android:text="Play"
android:id="@+id/playBtn"
android:layout_width="80dip"
android:layout_alignParentRight="true"
android:layout_height="wrap_content"
android:paddingTop="5dip"
android:paddingBottom="5dip"
android:textColor="#ffffff"
android:background="@drawable/start_button" />
表示计时器文本视图的问题XML
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/question"
android:layout_centerHorizontal="true"
android:background="@drawable/timer_bttn"
android:onClick="onClick"/>
我实施计时器代码的提问活动
public class QuestionActivity extends Activity implements OnClickListener{
private Question currentQ;
private GamePlay currentGame;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.question);
/**
* Configure current game and get question
*/
currentGame = ((CYKApplication)getApplication()).getCurrentGame();
currentQ = currentGame.getNextQuestion();
Button nextBtn1 = (Button) findViewById(R.id.answer1);
nextBtn1.setOnClickListener(this);
Button nextBtn2 = (Button) findViewById(R.id.answer2);
nextBtn2.setOnClickListener(this);
Button nextBtn3 = (Button) findViewById(R.id.answer3);
nextBtn3.setOnClickListener(this);
Button nextBtn4 = (Button) findViewById(R.id.answer4);
nextBtn4.setOnClickListener(this);
/**
* Update the question and answer options..
*/
setQuestions();
}
/**
* Method to set the text for the question and answers from the current games
* current question
*/
private void setQuestions() {
//set the question text from current question
String question = Utility.capitalise(currentQ.getQuestion());
TextView qText = (TextView) findViewById(R.id.question);
qText.setText(question);
//set the available options
List<String> answers = currentQ.getQuestionOptions();
TextView option1 = (TextView) findViewById(R.id.answer1);
option1.setText(Utility.capitalise(answers.get(0)));
TextView option2 = (TextView) findViewById(R.id.answer2);
option2.setText(Utility.capitalise(answers.get(1)));
TextView option3 = (TextView) findViewById(R.id.answer3);
option3.setText(Utility.capitalise(answers.get(2)));
TextView option4 = (TextView) findViewById(R.id.answer4);
option4.setText(Utility.capitalise(answers.get(3)));
int score = currentGame.getScore();
String scr = String.valueOf(score);
TextView score1=(TextView) findViewById(R.id.score);
score1.setText(scr);
}
@Override
public void onClick(View arg0) {
//Log.d("Questions", "Moving to next question");
if(!checkAnswer(arg0)) return;
/**
* check if end of game
*/
if (currentGame.isGameOver()) {
//Log.d("Questions", "End of game! lets add up the scores..");
//Log.d("Questions", "Questions Correct: " + currentGame.getRight());
//Log.d("Questions", "Questions Wrong: " + currentGame.getWrong());
Intent i = new Intent(this, EndgameActivity.class);
startActivity(i);
finish();
}
else {
Intent i = new Intent(this, QuestionActivity.class);
startActivity(i);
finish();
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode)
{
case KeyEvent.KEYCODE_BACK :
return true;
}
return super.onKeyDown(keyCode, event);
}
/**
* Check if a checkbox has been selected, and if it
* has then check if its correct and update gamescore
*/
private boolean checkAnswer(View v) {
Button b=(Button) v;
String answer = b.getText().toString();
//Log.d("Questions", "Valid Checkbox selection made - check if correct");
if (currentQ.getAnswer().equalsIgnoreCase(answer))
{
//Log.d("Questions", "Correct Answer!");
currentGame.incrementScore();
}
else {
//Log.d("Questions", "Incorrect Answer!");
currentGame.decrementScore();
}
return true;
}
public void setTimer() {
long finishTime = 5;
CountDownTimer counterTimer = new CountDownTimer(finishTime * 1000, 1000) {
public void onFinish() {
//code to execute when time finished
}
public void onTick(long millisUntilFinished) {
int seconds = (int) (millisUntilFinished / 1000);
int minutes = seconds / 60;
seconds = seconds % 60;
if (seconds < 10) {
txtTimer.setText("" + minutes + ":0" + seconds);
} else {
txtTimer.setText("" + minutes + ":" + seconds);
}
}
};
counterTimer.start();
}
}
公共类QuestionActivity扩展活动实现OnClickListener{
私人问题;
私人游戏;
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.question);
/**
*配置当前游戏并获取问题
*/
currentGame=((CykaApplication)getApplication()).getCurrentGame();
currentQ=currentGame.getNextQuestion();
按钮nextBtn1=(按钮)findViewById(R.id.answer1);
nextBtn1.setOnClickListener(这个);
按钮nextBtn2=(按钮)findViewById(R.id.answer2);
nextBtn2.setOnClickListener(此);
按钮nextBtn3=(按钮)findViewById(R.id.answer3);
nextBtn3.setOnClickListener(这个);
按钮nextBtn4=(按钮)findViewById(R.id.answer4);
nextBtn4.setOnClickListener(这个);
/**
*更新问题和答案选项。。
*/
设置问题();
}
/**
*方法为当前游戏中的问题和答案设置文本
*当前问题
*/
私人问题{
//从当前问题设置问题文本
字符串question=Utility.capitalize(currentQ.getQuestion());
TextView qText=(TextView)findViewById(R.id.question);
qText.setText(问题);
//设置可用选项
列表答案=currentQ.getQuestionOptions();
TextView选项1=(TextView)findViewById(R.id.answer1);
选项1.setText(Utility.capitalize(answers.get(0));
TextView选项2=(TextView)findViewById(R.id.answer2);
选项2.setText(Utility.capitalize(answers.get(1));
TextView选项3=(TextView)findViewById(R.id.answer3);
选项3.setText(实用程序.大写(答案.获取(2));
TextView选项4=(TextView)findViewById(R.id.answer4);
选项4.setText(实用程序.capitalize(answers.get(3));
int score=currentGame.getScore();
String scr=String.valueOf(分数);
TextView得分1=(TextView)findViewById(R.id.score);
得分1.setText(scr);
}
@凌驾
公共void onClick(视图arg0){
//日志d(“问题”,“转到下一个问题”);
如果(!checkAnswer(arg0))返回;
/**
*检查游戏是否结束
*/
if(currentGame.isGameOver()){
//Log.d(“问题”,“游戏结束!让我们把分数加起来…”);
//Log.d(“问题”,“问题正确:”+currentGame.getRight());
//Log.d(“问题”,“问题错误:+currentGame.getError());
意向i=新意向(此,EndgameActivity.class);
星触觉(i);
完成();
}
否则{
意图i=新意图(此,QuestionActivity.class);
星触觉(i);
完成();
}
}
@凌驾
公共布尔onKeyDown(int-keyCode,KeyEvent事件){
开关(钥匙代码)
{
case KeyEvent.KEYCODE\u返回:
返回true;
}
返回super.onKeyDown(keyCode,event);
}
/**
*检查是否选中了复选框,以及
*然后检查其是否正确并更新游戏分数
*/
私有布尔校验应答(视图v){
按钮b=(按钮)v;
字符串应答=b.getText().toString();
//日志d(“问题”,“选中有效复选框-检查是否正确”);
if(currentQ.getAnswer().equalsIgnoreCase(answer))
{
//Log.d(“问题”,“正确答案!”);
currentGame.incrementScore();
}
否则{
//Log.d(“问题”,“回答不正确!”);
currentGame.decrementScore();
}
返回true;
}
公共void setTimer(){
长完成时间=5;
倒计时计数器=新的倒计时(finishTime*10001000){
公共无效onFinish(){
//时间结束时要执行的代码
}
公共void onTick(长毫秒未完成){
整数秒=(整数)(毫秒/1000);
整数分钟=秒/60;
秒=秒%60;
如果(秒<10){
txtTimer.setText(“+分钟+”:0“+秒);
}否则{
setText(“+minutes+”:“+seconds”);
}
}
};
counterTimer.start();
}
}
欢迎活动
public class WelcomeActivity extends Activity implements OnClickListener{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.welcome);
//////////////////////////////////////////////////////////////////////
//////// GAME MENU /////////////////////////////////////////////////
Button playBtn = (Button) findViewById(R.id.playBtn);
playBtn.setOnClickListener(this);
Button settingsBtn = (Button) findViewById(R.id.settingsBtn);
settingsBtn.setOnClickListener(this);
Button rulesBtn = (Button) findViewById(R.id.rulesBtn);
rulesBtn.setOnClickListener(this);
Button exitBtn = (Button) findViewById(R.id.exitBtn);
exitBtn.setOnClickListener(this);
}
/**
* Listener for game menu
*/
@Override
public void onClick(View v) {
Intent i;
switch (v.getId()){
case R.id.playBtn :
//once logged in, load the main page
//Log.d("LOGIN", "User has started the game");
//Get Question set //
List<Question> questions = getQuestionSetFromDb();
//Initialise Game with retrieved question set ///
GamePlay c = new GamePlay();
c.setQuestions(questions);
c.setNumRounds(getNumQuestions());
((CYKApplication)getApplication()).setCurrentGame(c);
//Start Game Now.. //
i = new Intent(this, QuestionActivity.class);
startActivityForResult(i, Constants.PLAYBUTTON);
break;
case R.id.rulesBtn :
i = new Intent(this, RulesActivity.class);
startActivityForResult(i, Constants.RULESBUTTON);
break;
case R.id.settingsBtn :
i = new Intent(this, SettingsActivity.class);
startActivityForResult(i, Constants.SETTINGSBUTTON);
break;
case R.id.exitBtn :
finish();
break;
}
}
公共类WelcomeActivity扩展活动实现OnClickListener{
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.welcome);
//////////////////////////////////////////////////////////////////////
////////游戏菜单/////////////////////////////////////////////////
按钮playBtn=(按钮)findviewbyd(R.id.playBtn);
playBtn.setOnClickListener(此);
按钮设置SBTN=(按钮)findViewById(R.id.settingsBtn);
settingsBtn.setOnClickListener(此);
按钮rulesBtn=(按钮)findViewById(R.id.rulesBtn);
public class QuestionActivity extends Activity implements OnClickListener{
// NEW: add counterTimer as a member
private CountDownTimer counterTimer;
// NEW: implement onResume
@Override
public void onResume() {
setTimer();
super.onResume();
}
// CHANGE: setTimer should be changed as follows
public void setTimer() {
long finishTime = 5;
// NOTE: use the member, instead of a local
counterTimer = new CountDownTimer(finishTime * 1000, 1000) {
public void onFinish() {
//code to execute when time finished
}
public void onTick(long millisUntilFinished) {
int seconds = (int) (millisUntilFinished / 1000);
int minutes = seconds / 60;
seconds = seconds % 60;
if (seconds < 10) {
txtTimer.setText("" + minutes + ":0" + seconds);
} else {
txtTimer.setText("" + minutes + ":" + seconds);
}
}
};
counterTimer.start();
}
}