Question

First of all, I’m using Andorid and Java only for a week and I’m a total newbie.

I need to know which button user clicked and then compare it with good or bad answer.

Here is the code

protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.questions);



        Integer[] flags = {
            R.drawable.flag_albania,
            R.drawable.flag_andorra,
            R.drawable.flag_angola,
            R.drawable.flag_avganistan,

        };

        String[] questions = {
            "What is the flag of Albania",
            "What is the flag of Andorra",
            "What is the flag of Angola",
            "What is the flag of Avganistan",

        };



        TextView tv = (TextView) findViewById(R.id.textView1);
        int arraySize = flags.length;
        Random rand = new Random();

        ImageButton button1 = (ImageButton) findViewById(R.id.imageButton1);
        int index = rand.nextInt(arraySize);
        int questionIndex1 = index;
        button1.setImageResource(flags[index]);
        flags[index] = flags[--arraySize];

        ImageButton button2 = (ImageButton) findViewById(R.id.imageButton2);
        index = rand.nextInt(arraySize);
        int questionIndex2 = index;
        button2.setImageResource(flags[index]);
        flags[index] = flags[--arraySize];

        ImageButton button3 = (ImageButton) findViewById(R.id.imageButton3);
        index = rand.nextInt(arraySize);
        int questionIndex3 = index;
        button3.setImageResource(flags[index]);
        flags[index] = flags[--arraySize];

        ImageButton button4 = (ImageButton) findViewById(R.id.imageButton4);
        index = rand.nextInt(arraySize);
        int questionIndex4 = index;
        button4.setImageResource(flags[index]);
        flags[index] = flags[--arraySize];

        Integer[] question = {
                questionIndex1,
                questionIndex2,
                questionIndex3,
                questionIndex4
        };

        int questionArraySize = question.length;

        int questionArray = rand.nextInt(questionArraySize);

        tv.setText(questions[question[questionArray]]);

My idea is to compare questionIndex that is randomly selected to a button id but I really don’t know how to implement it. Every help is appreciated.

Answer 1

Use this reduced code

ImageButton button1,button2,button3,button4;
            ImageButton imagebuttons[]={ button1,button2,button3,button4};
        int ids[]={R.id.imageButton1,R.id.imageButton2,R.id.imageButton3,R.id.imageButton4};

        for(final int i=0;i<imagebuttons.length;i++)
        {
            imagebuttons[i]=(ImageButton) findViewById(ids[i]);
    int index=rand.nextInt(arraySize);
             imagebuttons[i].setImageResource(flags[index]);
             flags[index] = flags[--arraySize];
             indexes.put(i,index);
            imagebuttons[i].setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                    if( questionArray==indexes.get(i))
                    {

                    }

                }
            });

I hope this will help you