可以明確,現在沒有直接方法可以獲得ListView中每一行EditText的值.
解決方案:重寫BaseAdapter,然后自行獲取ListView中每行輸入的EditText值.
大概算法:重寫BaseAdapter.getView函數,用一個數組存儲EditText中的值,根據position即數組下標,在getView中動態更新EditText和動態獲取EditText中的值.因為ListView中的item是復用的,如果不動態清空或動態獲取EditText中值,就會出現數據紊亂,或者沒數據.那么在生成EditText的時候要監控其值的變化.存儲下來.
代碼:
package com.exmyth.android; public class ListEditorAdapter extends BaseAdapter { private LayoutInflater mInflater; private List<Map<String, Object>> mData;// 存儲的EditText值 public Map<String, String> editorValue = new HashMap<String, String>();// public ListEditorAdapter(Context context, List<Map<String, Object>> data) { mData = data; mInflater = LayoutInflater.from(context); init(); } // 初始化 private void init() { editorValue.clear(); } @Override public int getCount() { return mData.size(); } @Override public Object getItem(int position) { return null; } @Override public long getItemId(int position) { return 0; } private Integer index = -1; @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; // convertView為null的時候初始化convertView。 if (convertView == null) { holder = new ViewHolder(); convertView = mInflater.inflate(R.layout.listview_item, null); holder.name = (TextView) convertView .findViewById(R.id.list_item_name); holder.title = (TextView) convertView .findViewById(R.id.list_item_title); holder.value = (EditText) convertView .findViewById(R.id.list_item_inputvalue); holder.value.setTag(position); holder.userkey = (TextView) convertView.findViewById(R.id.user_key); holder.value.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_UP) { index = (Integer) v.getTag(); } return false; } }); class MyTextWatcher implements TextWatcher { public MyTextWatcher(ViewHolder holder) { mHolder = holder; } private ViewHolder mHolder; @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void afterTextChanged(Editable s) { if (s != null && !"".equals(s.toString())) { int position = (Integer) mHolder.value.getTag(); mData.get(position).put("list_item_inputvalue", s.toString());// 當EditText數據發生改變的時候存到data變量中 } } } holder.value.addTextChangedListener(new MyTextWatcher(holder)); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); holder.value.setTag(position); } Object value = mData.get(position).get("list_item_name"); if (value != null) { holder.name.setText((String) value); } value = mData.get(position).get("list_item_title"); if (value != null) { holder.title.setText(value.toString()); } value = mData.get(position).get("user_key"); if (value != null) { holder.userkey.setText(value.toString()); } else { holder.userkey.setText("-1"); } value = mData.get(position).get("list_item_inputvalue"); if (value != null && !"".equals(value)) { holder.value.setText(value.toString()); } else { String key = mData.get(position).get("user_key").toString(); String inputValue = editorValue.get(key); holder.value.setText(inputValue); } holder.value.clearFocus(); if (index != -1 && index == position) { holder.value.requestFocus(); } return convertView; } public final class ViewHolder { public TextView name; public TextView title; public EditText value;// ListView中的輸入 public TextView userkey;// 用來定義的標志性主鍵,可不用關心 } }
使用方法:
private List<Map<String, Object>> mCheckItemList = new ArrayList<Map<String, Object>>();
mAdapter = new ListEditorAdapter(this, mCheckItemList);
m_lvListView.setAdapter(mAdapter);
直接改變mCheckItemList中的數據,然后調用mAdapter.notifyDataSetChanged();就可以更新ListView的數據
當然,直接從mCheckItemList也可以獲得用戶在EditText中輸入的數據.比較方便
其他:
ListView list= (ListView)findViewById(R.id.list);//獲得listview
for (int i = 0; i < list.getChildCount(); i++) {
LinearLayout layout = (LinearLayout)list.getChildAt(i);// 獲得子item的layout
EditText et = (EditText) layout.findViewById(R.id.et);// 從layout中獲得控件,根據其id
// EditText et = (EditText) layout.getChildAt(1)//或者根據位置,在這我假設TextView在前,EditText在后
System.out.println("the text of "+i+"'s EditText:----------->"+et.getText());
}