Java android的自定义网格视图外观 我的输出： 我想要实现的是：盒子就是图像

MainActivity.java

activity_main.xml

---

使用默认栅格视图无法实现这一点。 一种方法是为listView使用自定义适配器

“获取视图”方法应类似于：

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

    View rowView = convertView;
    if (rowView == null)//set the convert view and the viewholder 
    {
    if (position%2==0)
    {//code to inflate a 2 item row
                LayoutInflater inflater = _context.getLayoutInflater();
                rowView = inflater.inflate(R.layout.2Item, parent,false);
                ViewHolder viewHolder = new ViewHolder();
                viewHolder._item1 = (ImageView) rowView.findViewById(R.id.2_item_1);

                ViewHolder viewHolder = new ViewHolder();
                viewHolder._item2 = (ImageView) rowView.findViewById(R.id.2_item_2)
                rowView.setTag(viewHolder);
            }

            ViewHolder holder = (ViewHolder) rowView.getTag();
    holder.set();
    else

    {//code to inflate a 3 item row
                LayoutInflater inflater = _context.getLayoutInflater();
                rowView = inflater.inflate(R.layout.3Item, parent,false);
                ViewHolder viewHolder = new ViewHolder();
                viewHolder._item1 = (ImageView) rowView.findViewById(R.id.3_item_1);

                ViewHolder viewHolder = new ViewHolder();
                viewHolder._item2 = (ImageView) rowView.findViewById(R.id.3_item_2)
                rowView.setTag(viewHolder);
    viewHolder._item3 = (ImageView) rowView.findViewById(R.id.3_item_3)
                rowView.setTag(viewHolder);
            }

            ViewHolder holder = (ViewHolder) rowView.getTag();      
            holder.set();
       }
return rowView;
    }

在性能方面，可能有更好的方法来执行我提到的操作，我的getView代码可能不精确，因此请看本教程：

最后一条评论-用于图像的arraylist也应相应更改，以便数组中的每个项目将由2或3个图像组成

2对于每一行，您都有不同的布局，因此您必须告诉listview以智能方式使用convertview，以便覆盖适配器的以下方法，例如ArrayAdapter：

getViewTypeCount：这会询问您有多少种不同的行布局，对于您的情况，显然是2种

getItemViewTypeint位置：获取将由getView创建的视图类型，这意味着在getView中，您将位置传递给getItemViewTypeposition并返回一个数字，例如，如果是2，则意味着您必须使用一行中有3个图像的布局，如果是2，则使用其他布局

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其他步骤与普通listview相同。

您可能会找到您需要的答案[here][1][1]：@student这根本不是一个好答案，因为它不会回收视图，尽管对于少量的项目它是可以的。我正在寻找一些我也可以使用view holder进行回收的东西！

<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android" 
   android:id="@+id/gridview"
   android:layout_width="fill_parent" 
   android:layout_height="fill_parent"
   android:columnWidth="90dp"
   android:numColumns="auto_fit"
   android:verticalSpacing="10dp"
   android:horizontalSpacing="10dp"
   android:stretchMode="columnWidth"
   android:gravity="center"
/>

public class ImageAdapter extends BaseAdapter {
   private Context mContext;

   // Constructor
   public ImageAdapter(Context c) {
      mContext = c;
   }

   public int getCount() {
      return mThumbIds.length;
   }

   public Object getItem(int position) {
      return null;
   }

   public long getItemId(int position) {
      return 0;
   }

   // create a new ImageView for each item referenced by the Adapter
   public View getView(int position, View convertView, ViewGroup parent) {
      ImageView imageView;
      if (convertView == null) {
      imageView = new ImageView(mContext);
      imageView.setLayoutParams(new GridView.LayoutParams(85, 85));
      imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
      imageView.setPadding(8, 8, 8, 8);
      } else {
      imageView = (ImageView) convertView;
      }

      imageView.setImageResource(mThumbIds[position]);
      return imageView;
   }

   // Keep all Images in array
   public Integer[] mThumbIds = {
      R.drawable.sample_2, R.drawable.sample_3,
      R.drawable.sample_4, R.drawable.sample_5,
      R.drawable.sample_6, R.drawable.sample_7,
      R.drawable.sample_0, R.drawable.sample_1,
      R.drawable.sample_2, R.drawable.sample_3,
      R.drawable.sample_4, R.drawable.sample_5,
      R.drawable.sample_6, R.drawable.sample_7,
      R.drawable.sample_0, R.drawable.sample_1,
      R.drawable.sample_2, R.drawable.sample_3,
      R.drawable.sample_4, R.drawable.sample_5,
      R.drawable.sample_6, R.drawable.sample_7
   };
}

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

    View rowView = convertView;
    if (rowView == null)//set the convert view and the viewholder 
    {
    if (position%2==0)
    {//code to inflate a 2 item row
                LayoutInflater inflater = _context.getLayoutInflater();
                rowView = inflater.inflate(R.layout.2Item, parent,false);
                ViewHolder viewHolder = new ViewHolder();
                viewHolder._item1 = (ImageView) rowView.findViewById(R.id.2_item_1);

                ViewHolder viewHolder = new ViewHolder();
                viewHolder._item2 = (ImageView) rowView.findViewById(R.id.2_item_2)
                rowView.setTag(viewHolder);
            }

            ViewHolder holder = (ViewHolder) rowView.getTag();
    holder.set();
    else

    {//code to inflate a 3 item row
                LayoutInflater inflater = _context.getLayoutInflater();
                rowView = inflater.inflate(R.layout.3Item, parent,false);
                ViewHolder viewHolder = new ViewHolder();
                viewHolder._item1 = (ImageView) rowView.findViewById(R.id.3_item_1);

                ViewHolder viewHolder = new ViewHolder();
                viewHolder._item2 = (ImageView) rowView.findViewById(R.id.3_item_2)
                rowView.setTag(viewHolder);
    viewHolder._item3 = (ImageView) rowView.findViewById(R.id.3_item_3)
                rowView.setTag(viewHolder);
            }

            ViewHolder holder = (ViewHolder) rowView.getTag();      
            holder.set();
       }
return rowView;
    }