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Android培訓(xùn)之ListView獲取item中EditText值(2)

更新時(shí)間:2016年10月31日17時(shí)24分 來源:傳智播客Android培訓(xùn)學(xué)院 瀏覽次數(shù):

 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(dāng)EditText數(shù)據(jù)發(fā)生改變的時(shí)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(biāo)志性主鍵,可不用關(guān)心
    }
}</map<string,></string,></string,></map<string,>

使用方法:

private List<map> mCheckItemList = new ArrayList<map>();</map</map

mAdapter = new ListEditorAdapter(this, mCheckItemList);

m_lvListView.setAdapter(mAdapter);

直接改變mCheckItemList中的數(shù)據(jù),然后調(diào)用mAdapter.notifyDataSetChanged();就可以更新ListView的數(shù)據(jù)

當(dāng)然,直接從mCheckItemList也可以獲得用戶在EditText中輸入的數(shù)據(jù).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(jù)其id
// EditText et = (EditText) layout.getChildAt(1)//或者根據(jù)位置,在這我假設(shè)TextView在前，EditText在后

System.out.println("the text of "+i+"'s EditText：----------->"+et.getText());
}

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作者：傳智播客Android培訓(xùn)學(xué)院
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