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

更新時間:2016年10月31日17時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());
}