嗨，我点击了＃34; ADD＆＃34;按钮....
在此之前，我想向您解释一下我需要实现的目标。这里我有listView项目。该列表包括项目名称和editText。用户可以在此editText中输入值。假设用户在编辑文本中输入三个项目值（例如：Tomoto 30，Soup 40，Biriyani 50）。此外，有一个＆＃34; ADD＆＃34;单击时在同一屏幕上显示弹出对话框的按钮。在对话框的内部，必须显示项目名称和用户输入的值，在上述示例（Tomoto 30，Soup 40，Biriyani 50..Total 120）的情况下也需要这些值。如果有人可以提供帮助，将很容易转发并实现我的申请....在此先感谢
===========
my_row.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:orientation="vertical" android:padding="6dip">
<ImageView
android:id="@+id/imageView"
android:layout_width="150dp"
android:layout_height="100dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginRight="16dp"
android:src="@drawable/ic_soup"/>
<TextView android:id="@+id/description"
android:layout_width="100sp"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/imageView"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium"/>
<TextView android:id="@+id/itemNumber"
android:layout_width="100sp"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/imageView"
android:layout_below="@+id/description"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText android:id="@+id/quantity"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/itemNumber"
android:inputType="number"
android:layout_marginTop="50dp"
android:ems="10"
android:hint="0.00"
/>
</RelativeLayout>
===========
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.info.detail.textwatcher.MainActivity">
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_marginLeft="1dp"
android:layout_marginTop="1dp"
android:layout_marginBottom="45dp"
tools:listitem="@layout/my_row"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="horizontal"
android:background="#46BB09">
<!-- <TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="SEND QUERY"
android:textSize="20dp"
android:textColor="@android:color/white"
android:layout_weight="2"
android:layout_marginLeft="30dp"/>-->
<Button
android:id="@+id/btnAdd"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="ADD"
android:layout_weight="1"
android:textSize="16dp"
android:background="@null"
android:textColor="@android:color/white"/>
</LinearLayout>
</RelativeLayout>
public class MainActivity extends AppCompatActivity {
private MyCustomAdapter dataAdapter = null;
public Button button;
public EditText ediText;
TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
displayListView();
button = (Button) findViewById(R.id.btnAdd);
ediText=(EditText) findViewById(R.id.quantity);
textView = (TextView) findViewById(R.id.description);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
AlertDialog.Builder alertdialogbuilder = new AlertDialog.Builder(MainActivity.this);
alertdialogbuilder.setTitle("Selected Items");
}
});
}
private void displayListView() {
//Array list of products
ArrayList<Product> productList = new ArrayList<Product>();
Product product = new Product(R.drawable.ic_soup, "Tomoto", "desc");
productList.add(product);
product = new Product(R.drawable.ic_soup, "Soup", "desc");
productList.add(product);
product = new Product(R.drawable.ic_biriyani, "Biriyani", "desc");
productList.add(product);
product = new Product(R.drawable.ic_soup, "Chilli", "desc");
productList.add(product);
product = new Product(R.drawable.ic_soup, "Powder", "desc");
productList.add(product);
product = new Product(R.drawable.ic_soup, "Apple", "desc");
productList.add(product);
product = new Product(R.drawable.ic_soup, "Orange", "desc");
productList.add(product);
product = new Product(R.drawable.ic_soup, "Banana", "desc");
productList.add(product);
product = new Product(R.drawable.ic_soup, "Mango", "desc");
productList.add(product);
//create an ArrayAdaptar from the String Array
dataAdapter = new MyCustomAdapter(this, R.layout.my_row, productList);
ListView listView = (ListView) findViewById(R.id.listView1);
// Assign adapter to ListView
listView.setAdapter(dataAdapter);
}
private class MyCustomAdapter extends ArrayAdapter<Product> {
private ArrayList<Product> productList;
public MyCustomAdapter(Context context, int textViewResourceId,
ArrayList<Product> productList) {
super(context, textViewResourceId, productList);
this.productList = new ArrayList<Product>();
this.productList.addAll(productList);
}
@Override
public View getView(int position, View view, ViewGroup parent) {
Product product = productList.get(position);
if (view == null) {
LayoutInflater vi = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = vi.inflate(R.layout.my_row, null);
EditText quantity = (EditText) view.findViewById(R.id.quantity);
//attach the TextWatcher listener to the EditText
quantity.addTextChangedListener(new MyTextWatcher(view));
}
EditText quantity = (EditText) view.findViewById(R.id.quantity);
quantity.setTag(product);
if (product.getQuantity() != 0) {
quantity.setText(String.valueOf(product.getQuantity()));
} else {
quantity.setText("");
}
ImageView itemimage = (ImageView) view.findViewById(R.id.imageView);
itemimage.setImageResource(product.getItemimage());
TextView itemNumber = (TextView) view.findViewById(R.id.itemNumber);
itemNumber.setText(product.getTitle());
TextView description = (TextView) view.findViewById(R.id.description);
description.setText(product.getDescription());
return view;
}
}
private class MyTextWatcher implements TextWatcher {
private View view;
private MyTextWatcher(View view) {
this.view = view;
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
//do nothing
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
//do nothing
}
public void afterTextChanged(Editable s) {
String qtyString = s.toString().trim();
int quantity = qtyString.equals("") ? 0 : Integer.valueOf(qtyString);
EditText qtyView = (EditText) view.findViewById(R.id.quantity);
Product product = (Product) qtyView.getTag();
product.setQuantity(quantity);
}
}
}`enter code here`
答案 0 :(得分：0)
我会帮助您解释一些代码和几行代码，但是您可以继续研究和编写代码。
首先，制作课程<GetCaseDetailsResponse xmlns="http://tempuri.org/" xmlns:xsi="xsi">
<Cases>
<Name xsi:type="xsd:string">noob</Name>
<Description xsi:type="xsd:string">Student</Description>
<Ref xsi:type="xsd:string">1234</Ref>
<Status xsi:type="xsd:string">Open</Status>
</Cases>
</GetCaseDetailsResponse>
以扩展AmountDialog。像这样覆盖DialogFragment方法：
OnCreateDialog在MainActivity中：
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
LayoutInflater inflater = getActivity().getLayoutInflater();
//for this line you must create the layout for your dialog
View v = inflater.inflate(R.layout.dialog, null);
//extract view references like this:
final TextView amount = (TextView) v.findViewById(R.id.amount);//here will be the id of the total
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle("Total price")
.setView(v)
.setPositiveButton(R.string.OkButton, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//do something with the amount:
String amountValue = amount.getText().toString();
}
})
.setNegativeButton(R.string.CancelButton, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//nothing here, it will dismiss by default
}
});
return builder.create();
这些将是基本步骤。不要忘记为对话框创建布局。并搜索如何通过活动操纵从对话框中提取的值。