标识列表视图项中的自动完成文本视图

Question

我在ListView中有几个AutocompleteTextView作为项目;这些项目是使用自定义适配器动态加载的。在自动完成文本视图中选择一个项目时，我需要更新与自动完成文本视图位于同一行的另一个文本视图。我在识别自动完成文本视图的位置时遇到问题，其中选择了某个项目。任何指示将不胜感激：

我的活动如下所示，其中定义了列表视图：

<ListView
android:id="@+id/listview_orders"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>

列表视图项在另一个布局文件中定义为：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<AutoCompleteTextView
android:id="@+id/product_code_row_item"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="2"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:ems="10" />
<AutoCompleteTextView android:id="@+id/product_name_row_item"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="3"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
/>
<TextView android:id="@+id/product_size_row_item"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="2"
/>

</LinearLayout>

列表视图适配器的设置如下：

ListView view = (ListView) findViewById(R.id.listview_orders);
ListViewItemAdapter adapter = new ListViewItemAdapter(this, orderItems, prodCodeList, prodNameList);
view.setAdapter(adapter);

自定义适配器 getView 方法实现如下所示：

@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = activity.getLayoutInflater();
convertView = inflater.inflate(R.layout.order_list_row, null);
}
AutoCompleteTextView  productCode = (AutoCompleteTextView ) convertView.findViewById(R.id.product_code_row_item);
AutoCompleteTextView productName = (AutoCompleteTextView) convertView.findViewById(R.id.product_name_row_item);
TextView productSize = (TextView) convertView.findViewById(R.id.product_size_row_item);
TextView mQty = (TextView) convertView.findViewById(R.id.product_mqty_row_item);


OrderItem orderItem = (OrderItem)orderItemList.get(position);
productCode.setText(orderItem.getProductCode());
productCode.setTag(position);
productName.setText(orderItem.getDescription());
productName.setTag(position);
productSize.setText(orderItem.getProductSize());

//Setting up autocorrect adapter for product codes
ArrayAdapter<String> adapter = new ArrayAdapter<String>
(activity, android.R.layout.select_dialog_item, prodCodeList);
//Getting the instance of AutoCompleteTextView
productCode.setThreshold(1);//will start working from first character
productCode.setAdapter(adapter);//setting the adapter data into the AutoCompleteTextView
productCode.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View arg1, int pos,
long id) {
Toast.makeText(OrderApplication.getCustomAppContext(), (CharSequence)parent.getItemAtPosition(pos), Toast.LENGTH_LONG).show();

int itemPosition = (Integer) arg1.getTag();
//loadOrderItem(newOrderItem, (String) parent.getItemAtPosition(pos), true);
}
});
//Setting up autocorrect adapter for product names
adapter = new ArrayAdapter<String>
(activity, android.R.layout.select_dialog_item, prodNameList);
//Getting the instance of AutoCompleteTextView
productName.setThreshold(2);//will start working from first character
productName.setAdapter(adapter);//setting the adapter data into the AutoCompleteTextView
return convertView;
}

Answer 1

你应该使用 -

adapter.getItem(pos)

在您的项目内点击

Answer 2

我找到了一种解决方法来获取列表视图中自动完成文本视图的引用。

holder.productCodeView.setOnFocusChangeListener(new View.OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if(hasFocus) {
currentFocusView = v;
}
}
});
holder.productCodeView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View arg1, int pos, long id) {

if (currentFocusView != null) {
int iPosition = (Integer) currentFocusView.getTag();
}

}
});