0

在 ViewPager 中，有一个 gridview，它有一个带有文本视图和图像的单选答案网格。当我单击任何答案时，文本视图应将其颜色更改为红色，否则为白色。除了第一个答案之外，它对于所有其他答案都可以正常工作。当我第一次点击gridview中的第一个答案时，它不会改变颜色，第二次点击它会变成红色，但是当我改变选项时，第一个选项的红色不会变成白色。看下面的画面，

抱歉，我是新用户，不允许提交屏幕...

内部GridFragment#OnActivityCreated()：

gridview.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View v, int position, long arg3) {

            currentPage = new TestTopics().getCuttentPage();

            tv = ((ViewHolder) v.getTag()).lbl;                 

            if(selectedValues.containsKey(currentPage))
            {   

                selectedValues.get(currentPage).setTextColor(Color.WHITE);
                selectedValues.remove(currentPage);
                selectedValues.put(currentPage, tv);
                selectedValues.get(currentPage).setTextColor(Color.RED);



            }
            else
            {   

                selectedValues.put(currentPage, tv);
                selectedValues.get(currentPage).setTextColor(Color.RED);

            }               

        }
    });

ImageAdapter#getView()方法：

public View getView(int position, View convertView, ViewGroup parent) {

    numTopics = mTopicList.getNumTopics ();
    ViewHolder holder;
    holder = new ViewHolder();

    if (convertView == null) { 

       int layoutId = R.layout.demo_pager_grid_item;
       LayoutInflater li =  ((Activity) mContext).getLayoutInflater();
       childView = li.inflate (layoutId, null);

       holder.img = (ImageView) childView.findViewById(R.id.image);
       holder.lbl = (TextView) childView.findViewById(R.id.title);

       childView.setTag(holder);

    } else {

        childView = convertView;
        holder = (ViewHolder) childView.getTag();
    }                

    if (childView != null) {
       // Set the width and height of the child view.
       childView.setLayoutParams(new GridView.LayoutParams(mCellWidth, mCellHeight));

       int j = position + mImageOffset;

       if (j < 0) j = 0;
       if (j >= numTopics) j = numTopics - 1;


       imageView = (ImageView) childView.findViewById (R.id.image);
       if (imageView != null) {
          Resources res = mContext.getResources ();
          int imagePadding = res.getDimensionPixelSize (R.dimen.grid_image_padding);

          imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
          imageView.setBackgroundResource (R.color.background_grid1_cell);
          imageView.setPadding (imagePadding, imagePadding, imagePadding, imagePadding);
          imageView.setImageBitmap (mTopicList.getTopicImage (j));
          imageView.setTag (new Integer (j));


       }
       textView = (TextView) childView.findViewById (R.id.title);

       if (textView != null) 
       {           

                textView.setText(mTopicList.getTopicTitle (j)); 
                textView.setTag (mTopicList.getTopicTitle (j));
                holder.lbl.setTag(mTopicList.getTopicTitle (j));


       }
    }



    return childView;

}

我已经看到了这个链接：OnClickListener not working for first item in GridView，并按照答案，但没有成功......

我哪里错了？

4

1 回答 1

0

在问题编辑中回答。转换为社区 wiki 答案。请参阅将问题的答案添加到问题本身时的适当操作是什么？)

OP写道：

已经解决了……

我gridview.setBackgroundColor(Color.TRANSPARENT);在以下代码中添加了：

if(patternItems.containsKey(currentPage) && selectedValues.containsKey(currentPage))
            {

                selectedValues.get(currentPage).setTextColor(Color.WHITE);
                selectedValues.remove(currentPage);
                selectedValues.put(currentPage, tv);
                selectedValues.get(currentPage).setTextColor(Color.RED);
                **gridview.setBackgroundColor(Color.TRANSPARENT);**
                patternItems.remove(currentPage);                       
                patternItems.put(currentPage,tv.getText().toString());
             }
            else
            {   
                selectedValues.put(currentPage, tv);
                selectedValues.get(currentPage).setTextColor(Color.RED);
                **gridview.setBackgroundColor(Color.TRANSPARENT);**
                patternItems.put(currentPage,tv.getText().toString());                                                                                              
            }
于 2015-02-08T18:47:49.230 回答