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问题描述

我有一个20秒倒计时顺利工作在我的问答游戏。我想添加一个进度(不是 ProgressDialog )到屏幕上。我发现为Android混乱的开发者指南。我GOOGLE了大量实例,并试图将它们组合成我的code。现在所有的,当我运行游戏与游戏中的每个问题时没有取得进步的空栏显示。

QuestionView.java

 公共类QuestionView延伸活动{    INT correctAnswers = 0;
    INT wrongAnswers = 0;
    INT答案= 0;
    INT I = 0;    长得分= 0;    长STARTTIME = 20000;
    长间隔= 1000;
    长点;    布尔timerHasStarted = FALSE;    串类;    按钮ANSWER1,ANSWER2,ANSWER3,answer4;
    TextView的问题,pointCounter,questionNumber,timeCounter;    ArrayList的<问题>查询;
    定时器cdTimer;    进度条;    @覆盖
    公共无效的onCreate(捆绑savedInstanceState){
        super.onCreate(savedInstanceState);
        的setContentView(R.layout.questionviewmain);        ANSWER1 =(按钮)findViewById(R.id.answer1);
        ANSWER2 =(按钮)findViewById(R.id.answer2);
        ANSWER3 =(按钮)findViewById(R.id.answer3);
        answer4 =(按钮)findViewById(R.id.answer4);        问题=(的TextView)findViewById(R.id.question);        类别= getIntent()getStringExtra(类别)。
        查询= getIntent()getParcelableArrayListExtra(查询)。        pointCounter =(的TextView)findViewById(R.id.timer);
        questionNumber =(的TextView)findViewById(R.id.timeElapsedView);
        timeCounter =(的TextView)findViewById(R.id.timeCounter);        cdTimer =新的Timer(startTime时,间隔);        巴=(进度)findViewById(R.id.progressbar);
        bar.setIndeterminate(假);
        bar.setMax(9);        loadQuestion();
    }    公共无效loadQuestion(){            bar.setProgress(ⅰ);        如果(我== 10){            endQuiz();        }其他{            如果(!timerHasStarted){
                cdTimer.start();
                timerHasStarted = TRUE;
            }其他{
                cdTimer.start();
                timerHasStarted = FALSE;
            }            答案= queries.get(I).getCorrectAnswer();            question.setText(queries.get(ⅰ).getQuery());            answer1.setText(queries.get(ⅰ).getA1());
            answer2.setText(queries.get(ⅰ).getA2());
            answer3.setText(queries.get(ⅰ).getA3());
            answer4.setText(queries.get(ⅰ).getA4());            answer1.setOnClickListener(新OnClickListener(){
                公共无效的onClick(查看为arg0){
                    queries.get(ⅰ).setSelectedAnswer(0);
                    如果(答案== 0){
                        correctAnswers ++;
                        下一个问题();
                    }其他{
                        wrongAnswers ++;
                        下一个问题();
                    }
                }
            });            answer2.setOnClickListener(新OnClickListener(){
                公共无效的onClick(查看为arg0){
                    queries.get(ⅰ).setSelectedAnswer(1);
                    如果(回答== 1){
                        correctAnswers ++;
                        下一个问题();
                    }其他{
                        wrongAnswers ++;
                        下一个问题();
                    }
                }
            });            answer3.setOnClickListener(新OnClickListener(){
                公共无效的onClick(查看为arg0){
                    queries.get(ⅰ).setSelectedAnswer(2);
                    如果(回答== 2){
                        correctAnswers ++;
                        下一个问题();
                    }其他{
                        wrongAnswers ++;
                        下一个问题();
                    }
                }
            });            answer4.setOnClickListener(新OnClickListener(){
                公共无效的onClick(查看为arg0){
                    queries.get(ⅰ).setSelectedAnswer(3);
                    如果(回答== 3){
                        correctAnswers ++;
                        下一个问题();
                    }其他{
                        wrongAnswers ++;
                        下一个问题();
                    }
                }
            });
        }
    }    公众的ArrayList<问题> getQueries(){
        返回查询;
    }    公共无效nextQuestion(){
        得分=评分+分;
        我++;
        loadQuestion();
    }    公共类定时器扩展CountDownTimer {        公共无效startCountdownTimer(){
        }        公共定时器(长的startTime,长间隔){
            超(startTime时,间隔);
        }        @覆盖
        公共无效onFinish(){
            如果(ⅰ> = 9){
                cdTimer.cancel();
                endQuiz();
            }其他{
                wrongAnswers ++;
                下一个问题();
            }
        }        @覆盖
        公共无效onTick(长millisUntilFinished){
            timeCounter.setText(剩余时间+(millisUntilFinished / 100));
            点=(millisUntilFinished / 100)/ 2;
            pointCounter.setText(积分剩余:+分);
            如果(ⅰ小于10){
                questionNumber.setText(问题+第(i + 1)+10);
            }
        }
    }    公共无效endQuiz(){
        意向意图=新意图(QuestionView.this,Results.class);
        intent.putExtra(correctAnswers​​,correctAnswers);
        intent.putExtra(wrongAnswers​​,wrongAnswers);
        intent.putExtra(得分,得分);
        intent.putParcelableArrayListExtra(查询,查询);
        intent.putExtra(类别,类别);
        startActivity(意向);
    }
}

XML code

 <进度
                机器人:ID =@ + ID /进度
                机器人:layout_height =WRAP_CONTENT
                机器人:layout_width =WRAP_CONTENT
                机器人:知名度=看得见
                风格=@安卓风格/ Widget.ProgressBar.Horizo​​ntal/>


解决方案

New Answer
To do this let's add a new line to onTick():

bar.setProgress((int) Math.round(millisUntilFinished / 1000.0));

(You may need to tweak the data types, I am away from my compiler... Also I don't like the CountDownTimer class, it is inaccurate and often skips the second to last number. I wrote an alternate class here: android CountDownTimer - additional milliseconds delay between ticks)


Original Answer
I have a couple pointers:

  • Have you defined a maximum value for your ProgressBar?

    bar.setMax(9);
    

  • I suggest loading i as the progress instead of the constant value of 10:

    bar.setProgress(i);
    

  • If you still do not see any progress ensure that you are not in indeterminate mode:

    bar.setIndeterminate(false);
    

    (This assume that you are using a ProgressBar that can depict progress.)


Addition
Move this code into onCreate():

bar = (ProgressBar)findViewById(R.id.progressbar);
bar.setIndeterminate(false); // May not be necessary
bar.setMax(9);

Then move this line to loadQuestion():

bar.setProgress(i);

Otherwise the progress will never be updated since you only create one CountDownTimer and you never actually call startCountdownTimer().

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09-01 18:22