android listview嵌套gridview动态增加gridview的item项

这个功能主要是在数据结构这一块，先上图看看效果：

重点是放在左边这个listview嵌套gridview，可删除gridview中item,也可点击最后一项手动增加item数据，这里看几行重要的代码，源码放在底部，可供下载androidStudio3.0环境

public class ExchangeActivty extends Activity implements View.OnClickListener {    private final String TAG = ExchangeActivty.class.getName();    private ListView lv, lv2;    TextView mtitle_txt;    Button mSecondLevel_btn;    Button mStair_btn;    private static ExchangeListAdapter adapter;    private ExchangeListAdapter2 adapter2;    public static ArrayList> sonData;    public static List datas2 = new ArrayList();    public static List datas1 = new ArrayList();    List strArray = new ArrayList();    int list1_grid;    String list1_grid_content;    public static HashMap hashMap = null;    /**     * 回传回来的列表位置     */    private int list1_positon;    int index;    List test;    public static String[] group = {"1", "2", "3", "4"};//listview假数据    public static String[][] grid_item = {{"A1", "A2"}, {"A1", "A2", "A3"}, {"A1", "A2", "A3", "C4"}, {"crh"}};//基础假gridview数据    List> listdatas = new ArrayList<>();    //遍历造假数据    private void creatDatas() {        for (String[] grops : grid_item) {            List group = new ArrayList<>();            for (String ss : grops) {                group.add(ss);            }            listdatas.add(group);        }    }//这里用不上可以先忽略    //适配其中数据传回    @SuppressLint("HandlerLeak")    private Handler handler = new Handler() {        public void handleMessage(Message msg) {            // 回传的是此item的bean,对当前bean中的数据能够进行操作,位置传过来之后还能将数据进行操作            switch (msg.what) {                case ExchangeListAdapter2.GET_POSITION_:                    break;                case GET_GRIDVIEW:                    list1_positon = msg.getData().getInt(adapter.LIST_POSITION);//                    list1_grid = msg.getData().getInt(adapter.GRID_POSITION);                    list1_grid_content = msg.getData().getString(adapter.CONTENT);                    index = msg.getData().getInt(adapter.INDEX);//                    Log.e("LZ---第一个list", m);                    Toast.makeText(ExchangeActivty.this, "已选中" + list1_positon + index + ":" + list1_grid + ":" + list1_grid_content, Toast.LENGTH_SHORT).show();                    break;                default:                    break;            }        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.exchange);        creatDatas();        initView1();        addData2();        Adapter();    }    /**     * 右侧list列表数据添加item数据     */    public void addData2() {        if (datas2 != null)            for (int i = 0; i < 10; i++) {                datas2.add("CRH" + i + "A");// 添加数据            }//        adapter2.notifyDataSetChanged();    }    //控件初始化    private void initView1() {        lv = (ListView) findViewById(R.id.lv);        mtitle_txt = (TextView) findViewById(R.id.title_txt);        TextView title_Save = (TextView) findViewById(R.id.title_Save);        title_Save.setText("保存");        mtitle_txt.setText("自动派工结果");        mSecondLevel_btn = (Button) findViewById(R.id.SecondLevel_btn);        mSecondLevel_btn.setOnClickListener(this);        mSecondLevel_btn.setBackgroundResource(R.color.bule_05);        mStair_btn = (Button) findViewById(R.id.Stair_btn);        mStair_btn.setOnClickListener(this);        lv2 = (ListView) findViewById(R.id.lv2);        lv2.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(final AdapterView<?> adapterView, View view, final int position, long l) {            }        });        dataTest();    }    //左边list头部数据    public void dataTest() {        //position是第一选项中选择的栏目，进行判断        test = new ArrayList<>();        for (int k = 0; k < grid_item.length; k++) {            test.add(group[k]);            for (int g = 0; g < grid_item[k].length; g++) {                if (k == 0) {                    strArray.add(grid_item[k][g]);//添加listview 数据                    Log.e("LZ--22222--item值-----", grid_item[k][g] + "");                }            }        }        adapter = new ExchangeListAdapter(strArray, ExchangeActivty.this, handler);//左边list适配器初始化        adapter.setDatas(listdatas);        lv.setAdapter(adapter);    }    //第二个适配器初始化    public void Adapter() {        adapter2 = new ExchangeListAdapter2(ExchangeActivty.this, datas2, handler);        lv2.setAdapter(adapter2);    }    }

这里是外层listview的Adapter,

public class ExchangeListAdapter extends BaseAdapter {    public static final int SET = 1;    public static final int GET_GRIDVIEW = 1;    public static final String LIST_POSITION = "LIST_POSITION";    public static final String GRID_POSITION = "GRID_POSITION";    public static final String CONTENT = "CONTENT";    public static final String INDEX = "INDEX";    private Handler handler;    private Context mContext;    private GridViewAdapter gridViewAdapter;    private static String getlist1_grid_content;    List mgroup;    public ExchangeListAdapter(List mgroup, Context mContext, Handler handler) {        super();        this.mgroup = mgroup;        this.mContext = mContext;        this.handler = handler;    }    List> listdatas = new ArrayList<>();    //添加数据    public void setDatas(List> listdatas) {        this.listdatas = listdatas;    }    @Override    public int getCount() {        return listdatas.size();    }    @Override    public Object getItem(int position) {        return listdatas.get(position);    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        ViewHolder holder = null;        if (convertView == null) {            holder = new ViewHolder();            convertView = LayoutInflater.from(this.mContext).inflate(R.layout.list_item_top, null, false);            holder.gridView = (fixedGridView) convertView.findViewById(R.id.fixed_gridView);            holder.exchage_group_txt = (TextView) convertView.findViewById(R.id.exchage_group_txt);            convertView.setTag(holder);        } else {            holder = (ViewHolder) convertView.getTag();        }        try {            holder.exchage_group_txt.setText(mgroup.get(position).toString() + "组");        } catch (Exception e) {        }                if (holder.gridView != null) {            holder.myPosition = position;            gridViewAdapter = new GridViewAdapter(mContext, listdatas.get(position));            holder.gridView.setAdapter(gridViewAdapter);            setGridViewOnclik(holder.gridView, holder.myPosition);        }//        LongItem(holder.gridView, holder.myPosition);//长按        return convertView;    }    /**     * 长按获取内容     */    public void LongItem(final GridView gridView, final int ListPosition) {        gridView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {            @Override            public boolean onItemLongClick(AdapterView<?> parent, View view, int gridposition, long id) {                if (gridposition == parent.getChildCount() - 1) {                    Toast.makeText(mContext, "不是目标！", Toast.LENGTH_SHORT).show();                } else {                    //传值到activty                    Message msg = new Message();                    msg.what = 1;                    Bundle bundle = new Bundle();                    bundle.putString("CONTENT", getlist1_grid_content);                    bundle.putInt(INDEX, gridposition);                    msg.setData(bundle);                    handler.sendMessage(msg);                    getlist1_grid_content = null;//                    Toast.makeText(mContext, "位置" + mList.get(parentPosition).get(position).get("son").toString(), Toast.LENGTH_SHORT).show();                }                return false;            }        });    }    /**     * 单击跳转     */    public void setGridViewOnclik(final GridView gridView, final int parentPosition) {        if (gridViewAdapter != null) {            gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {                @Override                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                    if (position == parent.getChildCount() - 1) {//判断是否为最后一个item                        addDatas(parentPosition, position);                        Log.e("LZ--item", parentPosition + ":" + position);                    } else {                        Intent intent = new Intent(mContext, DispatchAdjustActivty.class);//                        mContext.startActivity(intent);                        // Toast.makeText(mContext, "位置" + mList.get(parentPosition).get(position).get("son").toString(), Toast.LENGTH_SHORT).show();                    }                }            });        }    }//添加数据    public void addDatas(int parentPosition, int position) {        for (int i = 0; i < listdatas.size(); i++) {            if (i == parentPosition) {                listdatas.get(parentPosition).add("123");//添加一项item                Log.e("LZ--additem", parentPosition + "");                notifyDataSetChanged();            }        }    }        private class ViewHolder {        TextView exchage_group_txt;        fixedGridView gridView;        int myPosition;    }}

最后一个为gridview的Adapter，直接看代码说话

public class GridViewAdapter extends BaseAdapter {    private Context mContext;    private LayoutInflater inflater;        private List mList;    public GridViewAdapter(Context mContext, List mList) {        this.mContext = mContext;        this.mList = mList;        inflater = LayoutInflater.from(mContext);    }    @Override    public int getCount() {        if (mList == null) {            return 0;        } else {            return (mList.size() + 1);//添加最后一项可点击item添加数据        }    }    @Override    public Object getItem(int position) {        if (mList == null)            return null;        return this.mList.get(position);    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        ViewHolder viewHolder = null;        if (convertView == null) {            viewHolder = new ViewHolder();            convertView = inflater.inflate(R.layout.gridview_item, null);            viewHolder.mImageView = (ImageView) convertView.findViewById(R.id.del_itm);            viewHolder.mTextView = (TextView) convertView.findViewById(R.id.textView_gridView);            convertView.setTag(viewHolder);        } else {            viewHolder = (ViewHolder) convertView.getTag();        }        if (position < mList.size()) {            try {                viewHolder.mTextView.setText(mList.get(position).toString());            } catch (Exception e) {            }        } else {//            viewHolder.mTextView.setText("添加");            viewHolder.mTextView.setBackgroundResource(R.drawable.add);//设置最后一项item的背景            viewHolder.mImageView.setVisibility(View.GONE);        }        del(viewHolder.mImageView, position);//删除事件        return convertView;    }    class ViewHolder {        ImageView mImageView;        TextView mTextView;    }    public void del(ImageView mImageView, final int positions) {        mImageView.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                mList.remove(positions);//删除item                notifyDataSetChanged();            }        });    }}

主要的代码就这些了，

这是从项目中分离出来的demo，可能会有一些小bug,但不影响上文说的主要功能

下载源码

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