Question

我使用actionscript进行了测验。我已经开始研究android中的测验（完成新手），跟随动作脚本，而不是让我理解逻辑。

我不知道如何处理change_question函数，特别是第一个块。下方。

  function change_question(){
  if(tick.visible){
     right_answers++;
  }
  if(cross.visible){
     wrong_answers++;
  }
  if(qno==questions.length){
       gotoAndPlay(2);
   }else{
  tick.visible=false;
  cross.visible=false;
  rnd1=Math.ceil(Math.random()*3);
  rnd2=Math.ceil(Math.random()*questions.length)-1;
  q.text=questions[rnd2];
  if(questions[rnd2]=="x"){
  change_question();
  }
  questions[rnd2]="x";
  enable_disable(1);

任何指导都将不胜感激。提前谢谢。

到目前为止，这是我的Android代码！

package ks3.mathsapp.project;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

public class MathsMultiplicationActivity extends Activity {


TextView quesnum;
TextView ques;
TextView anst;
TextView ans1;
TextView ans2;
TextView ans3;
TextView ans4;
ImageView cross;
ImageView tick;


    int qno = 0;
    int right_answers = 0;
    int wrong_answers = 0;
    int rnd1;
    int rnd2;

    String [] questions = {"How much mph does the F-Duct add to the car?",
              "What car part is considered the biggest performance variable?",
              "What car part is designed to speed up air flow at the car rear?",
              "In seconds, how long does it take for a F1 car to stop when travelling at 300km/h?",
              "How many litres of air does an F1 car consume per second?",
              "What car part can heavily influence oversteer and understeer?",
              "A third of the cars downforce can come from what?",
              "Around how much race fuel would be consumed per 100km?","The first high nose cone was introduced when?",
              "An increase in what, has led to the length of exhaust pipes being shortened drastically?"};

    String [] [] answers = {{"3","5","8","9"},
    {"Tyres","Front Wing","F-Duct","Engine"},
    {"Diffuser","Suspension","Tyres","Exhaust"},
    {"4","6","8","10"},
    {"650","10","75","450"},
    {"Suspension","Tyres","Cockpit","Chassis"},
    {"Rear Wing","Nose Cone","Chassis","Engine"},
    {"75 Litres","100 Litres","50 Litres","25 Litres"},
    {"1990","1989","1993","1992"},
    {"Engine RPM","Nose Cone Lengths","Tyre Size","Number of Races"}};

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.multiplechoice);


    // Importing all assets like buttons, text fields
    quesnum = (TextView) findViewById(R.id.questionNum);
    ques = (TextView) findViewById(R.id.question);
    anst = (TextView) findViewById(R.id.answertit);
    ans1 = (TextView) findViewById(R.id.answer1);
    ans2 = (TextView) findViewById(R.id.answer2);
    ans3 = (TextView) findViewById(R.id.answer3);
    ans4 = (TextView) findViewById(R.id.answer4);
    cross = (ImageView) findViewById(R.id.cross);
    tick = (ImageView) findViewById(R.id.tick);

    cross.setVisibility(View.GONE); 
    tick.setVisibility(View.GONE); 



        if(rnd1==1){
            TextView quesAns1 = (TextView) findViewById(R.id.answer1); 
            quesAns1.setText("1) " + answers[0]) ;            

            TextView quesAns2 = (TextView) findViewById(R.id.answer2); 
            quesAns2.setText("2) " + answers[1]) ;   

            TextView quesAns3 = (TextView) findViewById(R.id.answer3); 
            quesAns3.setText("3) " + answers[2]) ;   

            TextView quesAns4 = (TextView) findViewById(R.id.answer4); 
            quesAns4.setText("4) " + answers[3]) ;   
        }

        if(rnd1==2){
            TextView quesAns1 = (TextView) findViewById(R.id.answer1); 
            quesAns1.setText("1) " + answers[2]) ;            

            TextView quesAns2 = (TextView) findViewById(R.id.answer2); 
            quesAns2.setText("2) " + answers[0]) ;   

            TextView quesAns3 = (TextView) findViewById(R.id.answer3); 
            quesAns3.setText("3) " + answers[1]) ;   

            TextView quesAns4 = (TextView) findViewById(R.id.answer4); 
            quesAns4.setText("4) " + answers[3]) ;  
        }
        if(rnd1==3){
            TextView quesAns1 = (TextView) findViewById(R.id.answer1); 
            quesAns1.setText("1) " + answers[1]) ;            

            TextView quesAns2 = (TextView) findViewById(R.id.answer2); 
            quesAns2.setText("2) " + answers[2]) ;   

            TextView quesAns3 = (TextView) findViewById(R.id.answer3); 
            quesAns3.setText("3) " + answers[0]) ;   

            TextView quesAns4 = (TextView) findViewById(R.id.answer4); 
            quesAns4.setText("4) " + answers[3]) ;  
        }


    }


    }

这是我一直用来帮助逻辑的动作脚本模型。

  var qno=0;var rnd1; var rnd2;
  tick.visible=false;cross.visible=false;
  var right_answers=0;var wrong_answers=0;

  function change_question(){
  if(tick.visible){
     right_answers++;
  }
  if(cross.visible){
     wrong_answers++;
  }
  if(qno==questions.length){
       gotoAndPlay(2);
   }else{
  tick.visible=false;
  cross.visible=false;
  rnd1=Math.ceil(Math.random()*3);
  rnd2=Math.ceil(Math.random()*questions.length)-1;
  q.text=questions[rnd2];
  if(questions[rnd2]=="x"){
  change_question();
  }
  questions[rnd2]="x";
  enable_disable(1);

  if(rnd1==1){opt1.text=answers[rnd2][0];opt2.text=answers[rnd2][1];opt3.text=answers[rnd2][2];opt4.text=answers[rnd2][3];} 
  if(rnd1==2){opt1.text=answers[rnd2][2];opt2.text=answers[rnd2][0];opt3.text=answers[rnd2][1];opt4.text=answers[rnd2][3];} 
  if(rnd1==3){opt1.text=answers[rnd2][1];opt2.text=answers[rnd2][2];opt3.text=answers[rnd2][0];opt4.text=answers[rnd2][3];} }} 

  function enable_disable(a){ 
  if(a==0)   {shade1.mouseEnabled=false;shade2.mouseEnabled=false;shade3.mouseEnabled=false;shade4.mouseEnabled=false;} 
  if(a==1){shade1.mouseEnabled=true;shade2.mouseEnabled=true;shade3.mouseEnabled=true;shade4.mouseEnabled=true;}}

change_question();

next_b.addEventListener(MouseEvent.CLICK, ButtonAction1); 
function ButtonAction1(eventObject:MouseEvent) {qno++;change_question();} 

shade1.addEventListener(MouseEvent.CLICK, ButtonAction2); 
shade2.addEventListener(MouseEvent.CLICK, ButtonAction3); 
shade3.addEventListener(MouseEvent.CLICK, ButtonAction4);
shade4.addEventListener(MouseEvent.CLICK, ButtonAction5);

 function ButtonAction2(eventObject:MouseEvent){enable_disable(0);if(rnd1==1){      tick.visible=true;tick.y=shade1.y}else{cross.visible=true;cross.y=shade1.y}}
 function ButtonAction3(eventObject:MouseEvent){enable_disable(0);if(rnd1==2){tick.visible=true;tick.y=shade2.y}else{cross.visible=true;cross.y=shade2.y}}
 function ButtonAction4(eventObject:MouseEvent){enable_disable(0);if(rnd1==3){tick.visible=true;tick.y=shade3.y}else{cross.visible=true;cross.y=shade3.y}}
 function ButtonAction5(eventObject:MouseEvent){enable_disable(0);if(rnd1==4){tick.visible=true;tick.y=shade4.y}else{cross.visible=true;cross.y=shade4.y}}


stop();

Answer 1

我会给你几点（我会按照完全没有逻辑的顺序将它们编辑到这个答案中）。

定义个人rnd时，请在成员TextView[]中设置您的问题。这样你就没有多少人调用findViewById()，如果在java中了解enhanced for-loop，这将为你节省大量的代码。

shade1.addEventListener(MouseEvent.CLICK, ButtonAction2);将成为

shade1.setOnClickListener(new OnClickListener() {
    public void onClick(View view) {
        buttonAction2();
    }
};

您找到了setVisibilty()和getVisibility()，如果您只想在其他可以使用的元素上停用onClick事件setEnabled(true | false)

希望这有助于您前进。

Android测验逻辑/编码

1 个答案: