Android中带有过滤器菜单按钮的GridView

我有一些麻烦：我有一个简单的GridView,其中我有两类项目.我想添加三个菜单按钮,为此GridView设置一个过滤器,并显示/隐藏选定类别的项目.

对于该示例,使用以下图像,第一个图像表示我的简单GridView,其中Button在ActionBar中.当我按下按钮时,SubMenu会显示三行,例如：“All”,“Open”& “关闭”.当我按下“打开”按钮时,我只想显示“打开”类别的项目：

  

我发现了搜索Editext的几个东西,其中包含了Filterable,但我不认为这是实现我想要的好方法.我不需要TextView / EditText作为过滤器,只需要一个ActionBar中的Button.

更新：

注意：我在使用@ana01’s answer修改后更新了我的适配器.

似乎getView()被调用太多了.我添加了3个整数来计算具有类别的项目数(nValues = @R_228_10586@l,nOpen = nb的Open item,nClosed = nb of Closed item).我使用NotifyDataSetChanged()来更新我的适配器.

这是我对BaseAdapter的活动：

public class MainActivity extends SherlockActivity {

    ActionBar actionbar;
    static GridView gridview;
    static MyAdapter adapter;

    String[] values = new String[] { 
        "Item 1","Item 2","Item 3","Item 4","Item 5"
    };

    // 1 for Open items,2 for Closed items
    int[] vStatus = new int[] {
        1,2,1,1
    };

    @Override
    protected void onCreate(Bundle savedInstanceStatE) {
        super.onCreate(savedInstanceStatE);
        setContentView(R.layout.activity_main);

        gridview = (GridView) findViewById(R.id.grid);
        adapter = new MyAdapter(this);
        gridview.setAdapter(adapter);

        gridview.setOnItemClickListener(new OnItemClickListener() {
            // new Intent to another Activity
            // ...
        });
    }

    @Override
    public Boolean onCreateOptionsMenu(Menu menu) {
        getSupportMenuInflater().inflate(R.menu.main,menu);
        return true;
    }

    // call an adapter method filterView() 
    // with the Integer sort by category
    // 0 = All items | 1 = Open | 2 = Closed
    @Override
    public Boolean onOptionsItemSELEcted(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                return false;
            case R.id.action_listfilter_all :
                adapter.filterView(0);
                return true;
            case R.id.action_listfilter_open :
                adapter.filterView(1);
                return true;
            case R.id.action_listfilter_closed :
                adapter.filterView(2);
                return true;
            default:
                return super.onOptionsItemSELEcted(item);
        }
    }

    public class MyAdapter extends BaseAdapter {
        private Context mContext;

        // Initialize the category's Integer "visibleFlag"
        privatE int visibleFlag = 0;
        // Initialize the counters' categories
        int nValues,nOpen,nClosed;

        public MyAdapter(Context C) {
            mContext = c;
        }

        // filterView method called by option SELEcted item menu
        public void filterView(int i) {
            visibleFlag = i;

            // refresh the content
            notifyDataSetChanged();
            /* gridview.invalidateViews(); */
        }

        protected class ViewHolder {
            TextView text,view,like,user,coms;
            ImageView imageview,imageflag;
        }

        // return the number of items regarding by category SELEcted
        public int getCount() {
            switch(visibleFlag) {
                case 0: nValues = values.length; break;
                case 1: nValues = nOpen; break;
                case 2: nValues = nClosed; break;
            }
            return nValues;
        }

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

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

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

            if (convertView == null) {
                LayoutInflater inflater = ((MainActivity) mContext).getLayoutInflater();
                convertView = inflater.inflate(R.layout.item_main,parent,falsE);

                viewHolder = new ViewHolder();

                viewHolder.text = (TextView) convertView.findViewById(R.id.text);
                viewHolder.imageview = (ImageView) convertView.findViewById(R.id.imagE);

                // set the tag of the category and 
                // augment the SELEcted category (by + 1)
                switch(vStatus[position]) {
                    case 1: viewHolder.imageview.setTag(1); nOpen++; break;
                    case 2: viewHolder.imageview.setTag(2); nClosed++; break;
                }

                // set the tag of the item's position
                viewHolder.text.setTag(position);

                convertView.setTag(viewHolder);
            } else {
                viewHolder = (ViewHolder) convertView.getTag();
            }

            // display the text with the position's tag
            viewHolder.text.setText(values[(Integer) viewHolder.text.getTag()]);

            // display the image with the position's tag
            switch((Integer) viewHolder.imageview.getTag()) {
                case 1: viewHolder.imageview.setImageresource(R.drawable.ic_open); break;
                case 2: viewHolder.imageview.setImageresource(R.drawable.ic_closed); break;
            }

            return convertView;
        }

    }

}

但是这不会显示所选类别的正确项目！@H_673_24@有人可以帮我搞清楚吗？

private ArrayList<Integer> closedIndexToRealIndex;
private ArrayList<Integer> openedIndexToRealIndex;

private void prepareData(){
    nOpen = nClosed = 0;
    closedIndexToRealIndex = new ArrayList<Integer>();
    openedIndexToRealIndex = new ArrayList<Integer>();
    for(int i = 0; i < values.count; i++){
        if(vStatus[i] == 0){    
            openedInexToRealIndex.add(Integer.valueOf(i));
            nOpen++;
        }
        else{
            closedIndexToRealIndex.add(Integer.valueOf(i));
            nClosed++;
       }
    }
}

public View getView(int position,falsE);

                viewHolder = new ViewHolder();
                viewHolder.text = (TextView) convertView.findViewById(R.id.text);
                viewHolder.imageview = (ImageView) convertView.findViewById(R.id.imagE);

                convertView.setTag(viewHolder);
            } else {
                viewHolder = (ViewHolder) convertView.getTag();
            }

            int actualIndex = 0;
            switch(visibleFlag){
            case 0://all
                actualIndex = position;
                break;
            case 1://opened
                actualIndex = openedIndexToRealIndex.get(position).intValue();
                break;
            case 2://closed
                actualIndex = closedIndexToRealIndex.get(position).intValue();
                break;
            default:
                break;
            }
            viewHolder.text.setText(values[acutalIndex]);

            if(vStatus[position] == 1)
                viewHolder.imageview.setImageresource(R.drawable.ic_open);
            else
                viewHolder.imageview.setImageresource(R.drawable.ic_closed);

            return convertView;
        }