【发布时间】：2012-12-21 06:35:28
【问题描述】：
编辑
现已解决
当我在 Adapter 类中删除 addTextChangeLister 时，editext 获得焦点，它让我可以编辑值，但是当用户输入时，我如何添加 addTextChangeListener 来计算报价的值。
我在列表项中有 2 个Editext（数量和价格）和一个TextView（报价）。我希望用户可以输入价格和数量，然后在用户更改两个值中的任何一个（数量或Edittext 中的价格）时计算报价。这是屏幕截图
但是 Listview 里面的 Editext 没有集中注意力，不要让我编辑它这是代码......
这是列表视图 xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<EditText
android:id="@+id/ep_multiselect"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:completionThreshold="3"
android:hint="Enter Product Name"
android:textSize="16sp" />
<Button
android:id="@+id/ep_go"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@+id/ep_multiselect"
android:text=" Go " />
<ListView
android:id="@+id/ep_listview"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/ep_go"
android:focusable="false"
android:visibility="gone" >
</ListView>
</RelativeLayout>
这里是列表项代码...
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/ep_productName"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="3dip"
android:layout_toLeftOf="@+id/ep_checkBox"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/ep_qty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/ep_productName"
android:layout_toLeftOf="@+id/ep_price"
android:ems="10"
android:focusable="true"
android:hint="Qty"
android:inputType="number" >
</EditText>
<EditText
android:id="@+id/ep_price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/ep_qty"
android:layout_alignBottom="@+id/ep_qty"
android:layout_alignParentRight="true"
android:ems="10"
android:focusable="true"
android:hint="Price"
android:inputType="number" />
<TextView
android:id="@+id/ep_quotePrice"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="@+id/ep_qty"
android:text="Quote Price"
android:textSize="16sp" />
</RelativeLayout>
这就是我在 java 中的处理方式..
private class MyEditProductAdapter extends BaseAdapter {
private LayoutInflater inflater;
private ArrayList<ProductDetailBean> productDetails;
private boolean listType;
public MyEditProductAdapter(LayoutInflater arg1,
ArrayList<ProductDetailBean > productDetails,
boolean listType) {
this.inflater = arg1;
this.productDetails = productDetails;
this.listType = listType;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return productQuantity.size();
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return productQuantity;
}
@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
@Override
public View getView(final int position, View convertView, ViewGroup arg2) {
final Holder holder;
if (convertView == null) {
holder = new Holder();
// inflate the view from xml
convertView = inflater.inflate(R.layout.edit_product_listitems,
null);
holder.productName = (TextView) convertView
.findViewById(R.id.ep_productName);
holder.qty = (EditText) convertView.findViewById(R.id.ep_qty);
holder.quotePrice = (TextView) convertView
.findViewById(R.id.ep_quotePrice);
holder.price = (EditText) convertView
.findViewById(R.id.ep_price);
holder.box = (CheckBox) convertView
.findViewById(R.id.ep_checkBox);
holder.qty.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
if (arg0.length() > 0) {
holder.quotePrice.setText("Quote Price : "
+ Integer.parseInt(arg0.toString())
* productPrice.get(position));
notifyDataSetChanged();
}
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
holder.price.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
if (arg0.length() > 0) {
holder.quotePrice.setText("Quote Price : "
+ Integer.parseInt(arg0.toString())
* productQuantity.get(position));
notifyDataSetChanged();
}
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
convertView.setTag(holder);
} else {
holder = (Holder) convertView.getTag();
}
final int localproductPrice = this.productPrice.get(position);
final int localqty = this.productQuantity.get(position);
holder.productName.setText(this.productName.get(position));
holder.qty.setText("" + localqty);
holder.price.setText("" + localproductPrice);
holder.quotePrice.setText("Quote Price : "
+ (localqty * localproductPrice));
return convertView;
}
}
static class Holder {
TextView productName, quotePrice;
CheckBox box;
EditText qty, price;
}
【问题讨论】：
标签： android android-listview focus android-edittext