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Android培训之ListView获取item中EditText值(2)

更新时间:2016年10月31日17时24分来源:传智播客Android培训学院浏览次数:

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());// 当EditText数据发生改变的时候存到data变量中

}

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中的输入

public TextView userkey;// 用来定义的标志性主键,可不用关心

}

}</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);

直接改变mCheckItemList中的数据,然后调用mAdapter.notifyDataSetChanged();就可以更新ListView的数据

当然,直接从mCheckItemList也可以获得用户在EditText中输入的数据.比较方便

其他:

ListView list= (ListView)findViewById(R.id.list);//获得listview

for (int i = 0; i < list.getChildCount(); i++) {
LinearLayout layout = (LinearLayout)list.getChildAt(i);// 获得子item的layout
EditText et = (EditText) layout.findViewById(R.id.et);// 从layout中获得控件,根据其id
// EditText et = (EditText) layout.getChildAt(1)//或者根据位置,在这我假设TextView在前，EditText在后

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