刷新的ListView在ImageButton.onClick内getView掀起了BaseAdap

2019-10-17 19:10发布

我有一个是通过自定义BaseAdapter产生,并期待这样一个活动:

这是getView关闭自定义BaseAdapter:

    @Override
public View getView(int position, View view, ViewGroup parent) {
    final Visita visita = getItem(position);

    view = mInflater.inflate(R.layout.visita_item, null); //The ListView Item

    ImageButton btnUp, btnDown;
    btnUp = (ImageButton)view.findViewById(R.id.visita_btn_move_up);
    btnDown = (ImageButton)view.findViewById(R.id.visita_btn_move_down);

    btnUp = (ImageButton) view.findViewById(R.id.visita_btn_move_up);
    if (position != 0) {// First item can't have the button up
        btnUp.setBackgroundResource(R.drawable.ic_arrow_up);
    }

    btnDown = (ImageButton) view.findViewById(R.id.visita_btn_move_down);
    if (position != visitas.size() - 1) {// Last item can't have the button down
        btnDown.setBackgroundResource(R.drawable.ic_arrow_down);
    }

    final DatabaseAdapter adapter = new DatabaseAdapter(context);

    btnUp.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Log.d(TAG, "Moving UP");

            ContentValues values = new ContentValues();
            valores.put(DatabaseHelper.VISITA_COLS[5], visita.order - 1);
            String where = "ordem=?";
            String[] whereArgs = {String.valueOf(visita.order)};
            Log.d(TAG, "ID: " + adapter.atualizar(valores, where, whereArgs, DatabaseHelper.TB_VISITA));

                  // I should refresh the ListView now
        }
    });

    btnDown.setOnClickListener(new OnClickListener( ) {
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Log.d(TAG, "Movind DOWN");

             //Here i should need the same, update the order in database and after refresh the ListView
        }
    });

    return view;
}

基本上, onClick关闭btnUpbtnDown是自解释的。 订单需要被保存在数据库中也因为它会被发送之后。 在dastabase更新工作得很好,我的问题是:我怎么能刷新自己的BaseAdapter里面的ListView?

我检查这个问题,但没有成功。

Answer 1:

我用BroadcastReceiver刷新ListView像这样



文章来源: Refresh ListView in ImageButton.onClick inside getView off a BaseAdapter