Android：一个活动中的多个视图

Question

I am new to android, and I am working on a Quiz app with a set of questions, each question has a question(text) and 4 images(imageButton), when user select the correct image, then they go to next question. So from question to question, should I:

1. call setContentView() multiple times in one activity? (layout is same for all questions, only the question text and image changes)
2. or add multiple layout in xml, and at runtime, set visibility of each layout? (but by doing so, I received warnings of too many views in one xml file)
3. any other better suggestions?

Thanks for your reply!

Answer 1

My suggestion populate the question dynamically...

From your Perspective do like this

1.Take xml with Question text and 4 images. 2. Get the Ids of question text(TextView), and 4 imageview's. 3.When ever the event trigger(ie next question) change the question text and Answer images..

Try this simple logic

   int question=0;
ImageView answer1,answer2,answe3,answer4;
int answerids[]={R.id.answer1,R.id.answer1,R.id.answer1,R.id.answer1};
ImageView[] answerimages={answer1,answer2,answer3,answer4};
String questions[]={"Question1","Question2","...."};
int images[][]={{R.drawable.answer1,R.drawable.answer2,R.drawable.answer3,R.drawable.answer4},{second question drawables},{Third question drawables}...};

In onCreate do like this

TextView question=findViewById(R.id.question);
    for(int i=0;i<answerids.length;i++)
    {
        answerimages[i]=(ImageView)findViewById(answerids[i]);
        answerimages[i].setImageResource(images[question][i]);
        answerimages[i].setOnclickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                question+=1;
            nextqueston();

            }
        });

To populate next question text and images..

 public void nextqueston()
        {
            question.setText(questions[queston]);
            for(int i=0;i<answerids.length;i++)
            {
                answerimages[i].setImageResource(images[question][i]);
            }
        }

Answer 2

Just keep the same Activity open, when one question is done, set the question text on the TextView programmatically, same for the ImageViews. All in the same layout.