Android网格布局实现--GridView

<GridView
    android:id="@+id/name_search_gridView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginLeft="@dimen/name_search_gridview_margin_left"
    android:layout_marginRight="@dimen/name_search_gridview_margin_right"
    android:background="@null"
    android:focusable="true"
    android:listSelector="@drawable/com_bg_item_selector"
    android:numColumns="4"
    android:overScrollMode="never"
    android:scrollbars="none" />

java代码实现：

mAdapter = new SearchNearGridViewAdapter(getContext());
mGridView.setAdapter(mAdapter);

mGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            SearchNearItem item = mAdapter.getItem(position);
          
        }
    });
}

-----------------------

public class SearchNearItem {

    public int type = 0;
    public String name = "";
    public String id = "";
    public String icon = "";

    public SearchNearItem(int type, String name, String id) {
        this(type, name, id, "");
    }

    public SearchNearItem(int type, String name, String id, String icon) {
        this.type = type;
        this.name = name;
        this.id = id;
        this.icon = icon;
    }
}

------------------------------

SearchNearGridViewAdapter.java

public class SearchNearGridViewAdapter extends BaseAdapter {

    private static final int VIEW_TYPE_COUNT = 2;

    private List<SearchNearItem> itemList = new ArrayList<SearchNearItem>();

    private Context mContext;

    public SearchNearGridViewAdapter(Context context) {
        this.mContext = context;
        initData();
    }

    private void initData() {
        String jsonStr = FileUtil.getStringFromAssertFile(mContext, "name_search_item.json");
        try {
            JSONArray array = new JSONArray(jsonStr);
            for (int i = 0, len = array.length(); i < len; i++) {
                JSONObject json = array.getJSONObject(i);
                int type = json.getInt("type");
                if (type == 1) {
                    itemList.add(new SearchNearItem(type, json.getString("name"), json.getString("id"), json.getString("icon")));
                } else {
                    itemList.add(new SearchNearItem(type, json.getString("name"), json.getString("id")));
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Override
    public int getCount() {
        return null != itemList ? itemList.size() : 0;
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public SearchNearItem getItem(int position) {
        return itemList.get(position);
    }

    @Override
    public int getViewTypeCount() {
        return VIEW_TYPE_COUNT;
    }

    @Override
    public int getItemViewType(int position) {
        return getItem(position).type == 1 ? 0 : 1;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder viewHolder;
        if (convertView == null) {
            int resource;
            if (getItemViewType(position) == 0) {
                resource = R.layout.name_search_gridview_item1;
            } else {
                resource = R.layout.name_search_gridview_item2;
            }
            convertView = LayoutInflater.from(mContext).inflate(resource, parent, false);

            viewHolder = new ViewHolder();
            viewHolder.textView = (TextView) convertView.findViewById(R.id.name_search_gridview_item_txt);
            convertView.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) convertView.getTag();
        }

        final SearchNearItem item = getItem(position);
        viewHolder.textView.setText(item.name);

        Resources resources = mContext.getResources();
        if (getItemViewType(position) == 0) {
            int id = resources.getIdentifier(mContext.getPackageName() + ":drawable/" + item.icon, null, null);
            if (id > 0) {
                Drawable top;
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                    top = resources.getDrawable(id, null);
                } else {
                    top = resources.getDrawable(id);
                }

                viewHolder.textView.setCompoundDrawablesWithIntrinsicBounds(null, top, null, null);
            }
        } else {
            viewHolder.textView.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
        }

        switch (item.type) {
            case 1:
                viewHolder.textView.setTextColor(resources.getColor(R.color.cl_text_a5_content));
                break;
            case 2:
                viewHolder.textView.setTextColor(resources.getColor(R.color.cl_text_a1_content));
                break;
            case 3:
                viewHolder.textView.setTextColor(resources.getColor(R.color.cl_text_a3_content));
                break;
            default:
                break;
        }

        return convertView;
    }

    private class ViewHolder {
        TextView textView;
    }

}