ViewPager的ListView上的不同项目-Android

Question

我正在研究quiz application 。 我在这里使用Viewpager indicator 。在此我实现了listview with radio button 。

我的问题是，如何在viewpager每一页上获取listviews的diffent values 。

我尝试过Google，但是找不到解决方案。 请帮我。 谢谢

参见下面的图片：

检查我的代码：

 class PagerAdapter extends FragmentPagerAdapter implements SwipeyTabsAdapter{

    public final String[] list = new String[]
        {"Operating System", "Product Of Google", "Both Above", "None of above"}
; 

    private final Context mContext;

    public PagerAdapter(Context context, FragmentManager fm) {
        super(fm);

        this.mContext = context;
    }


    @Override
    public Fragment getItem(int pos) {

        return ItemFragment.newInstance(QUES[pos]);
        //return ItemFragment.newInstance(QUES[pos % TITLES.length]);

    }

    @Override
    public int getCount() {
        return TITLES.length;
    }

    public TextView getTab(final int position, SwipeyTabs root) {
        TextView view = (TextView) LayoutInflater.from(mContext).inflate(
                R.layout.swipey_tab_indicator, root, false);
        view.setText(TITLES[position]);
        view.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                mViewPager.setCurrentItem(position);

            }
        });
        return view;
    }


}

public static class ItemFragment extends  Fragment{

    static ItemFragment newInstance(String title) {
        ItemFragment f = new ItemFragment();

        // Supply num input as an argument.
        Bundle args = new Bundle();

        args.putString("title",title);
        f.setArguments(args);

        System.out.println("value of the title : ================>"+title);
        return f;
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.view_question, container, false);
        View tv = v.findViewById(R.id.text);
        final View listvw = v.findViewById(R.id.listview);

         final String title = getArguments().getString("title");
         ((TextView)tv).setText(title);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_single_choice, list);
        ((ListView) listvw).setAdapter(adapter);
        ((ListView) listvw).setChoiceMode(ListView.CHOICE_MODE_SINGLE);

        return v;
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);


    }

    public void onListItemClick(ListView l, View v, int position, long id) {

        Log.i("FragmentList", "Item clicked: " + id);

    }
}

Answer 1

好吧，我建议您为列表所在的每个“视图”设置一个ID，然后当您要检索该值时，只需将所有ID从0循环到适配器的大小减去1，就可以了。在每次迭代中为您提供完整视图，因此之后您需要迭代视图的子级以找到复选框。 希望能帮助到你。

Answer 2

试试这个：

首先按照下面的显示初始化listvalue

/*public final String[] list = new String[]
    {"Operating System", "Product Of Google", "Both Above", "None of above"};*/


public static final String[] listArray = new String[]
        {
        "Operating System,Product Of Google,Both Above,None of above",
        "os,Google,Both,None",
        "Operating System,Product Of Google,Both Above,None of above",
        "os,Google,Both,None",
        "Operating System,Product Of Google,Both Above,None of above",
        "os,Google,Both,None",
        "Operating System,Product Of Google,Both Above,None of above",
        "os,Google,Both,None"};

将参数添加到getItem listArray[pos]如下所示：

@Override
    public Fragment getItem(int pos) {

        return ItemFragment.newInstance(QUES[pos],listArray[pos]);

    }

并更改为ItemFragment类，例如：

static ItemFragment newInstance(String title,String arrayList) {
        ItemFragment f = new ItemFragment();

        // Supply num input as an argument.
        Bundle args = new Bundle();

        args.putString("title",title);
        args.putString("listvalues",arrayList);
        f.setArguments(args);

        return f;
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.view_question, container, false);
        View tv = v.findViewById(R.id.text);

        final String title = getArguments().getString("title");
        final String  Listvalues = getArguments().getString("listvalues");


        String[] arr=Listvalues.split(",");

        System.out.println("Array :"+arr.length);
        for(int i=0;i<arr.length;i++)
        {

          //  System.out.println("array"+i+":========================>"+arr[i]);
        } 

         ((TextView)tv).setText(title);

        final View listvw = v.findViewById(R.id.listview);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_single_choice, arr);
        ((ListView) listvw).setAdapter(adapter);
        ((ListView) listvw).setChoiceMode(ListView.CHOICE_MODE_SINGLE);

        return v;
    }