最近项目的购物车中用列表中包含了留言功能, 需要获取EditText输入的内容,当购买多件商品时,就有点棘手了。
经过查资料解决了这个功能,并写了一个案例;
效果图:
可以在商品数据用一个字段来管理留言数据,这样就可以方便的操作了。
代码:
public class MainActivity extends AppCompatActivity { ListView listView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); } private void initView(){ listView=(ListView)findViewById(R.id.listview); listView.setAdapter(new ListAdapter(this)); } public void saveEditData(int position, String str) { Toast.makeText(this,str+"----"+position,Toast.LENGTH_LONG).show(); } }
Adapter
public class ListAdapter extends BaseAdapter { Context context; LayoutInflater inflater; String[] strings=new String[]{"商品1","商品2","商品3"}; public ListAdapter(Context context) { this.inflater=LayoutInflater.from(context); this.context=context; } @Override public int getCount() { return 3; } @Override public Object getItem(int position) { return strings[position]; } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (null == convertView){ convertView = inflater.inflate(R.layout.item_multiple_confirm,null); holder =new ViewHolder(convertView,position); convertView.setTag(holder); }else { holder = (ViewHolder) convertView.getTag(); } holder.tv_name.setText(getItem(position).toString()); return convertView; } class ViewHolder{ TextView tv_name; EditText editText; public ViewHolder(View view,int pisition){ tv_name = (TextView) view.findViewById(R.id.fill_order_name); editText= (EditText) view.findViewById(R.id.fill_order_ltext); editText.setTag(pisition);//存tag值 editText.addTextChangedListener(new TextSwitcher(this)); } } class TextSwitcher implements TextWatcher { private ViewHolder mHolder; public TextSwitcher(ViewHolder mHolder) { this.mHolder = mHolder; } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { int position = (int) mHolder.editText.getTag();//取tag值 ((MainActivity)context).saveEditData(position, s.toString()); } @Override public void afterTextChanged(Editable s) { } } }
代码是写的比较简单,源码点击下载