我有一个应用程序，我想在 android 的自定义对话框中显示一个由两个 textView 组成的自定义列表视图.到目前为止，我很难弄清楚如何将两者联系起来并生成对话框的内容.
I have an application where I would want to display a custom list view consisting of two textViews inside a custom dialog box in android. So far, I'm having a difficult time figuring out how to connect the two and generate the contents of the dialog box.
我尝试按照自定义 listView 教程进行操作，希望只是将对话框适配器设置为它，但无济于事.
I tried to follow custom listView tutorials with the hopes of just setting the dialog adapter to it but to no avail.
到目前为止，这是我目前所拥有的:
So far, this is what I have so far:
这是 list_row_dialog.xml，包含两个文本视图的行的布局:
This is list_row_dialog.xml, the layout for the row containing two textviews:
<?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:minHeight="50dp"
android:orientation="horizontal"
android:padding="5dip" >
<TextView
android:id="@+id/unit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textStyle="bold"
android:typeface="sans" />
<TextView
android:id="@+id/quantity"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:textColor="#343434"
android:textSize="12sp" />
</RelativeLayout>
这里是 dialog_main.xml 文件，我希望对话框使用的布局文件，它基本上是一个 listView.
And here is the dialog_main.xml file, the layout file that I want the dialog box to use, it's basically a listView.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ListView
android:id="@+id/custom_list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:dividerHeight="1dp" />
</LinearLayout>
这里是CustomListAdapterDialog.java，我什至不确定是否需要使用它在对话框上显示数据:
And here's CustomListAdapterDialog.java, I'm not sure if I even need to use this to display data on the dialog box:
public class CustomListAdapterDialog extends BaseAdapter {
private ArrayList<ItemClass> listData;
private LayoutInflater layoutInflater;
public CustomListAdapterDialog(Context context, ArrayList<ItemClass> listData) {
this.listData = listData;
layoutInflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
return listData.size();
}
@Override
public Object getItem(int position) {
return listData.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = layoutInflater.inflate(R.layout.list_row_dialog, null);
holder = new ViewHolder();
holder.unitView = (TextView) convertView.findViewById(R.id.unit);
holder.quantityView = (TextView) convertView.findViewById(R.id.quantity);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.unitView.setText(listData.get(position).getVariant().toString());
holder.quantityView.setText(listData.get(position).getUnit().toString());
return convertView;
}
static class ViewHolder {
TextView unitView;
TextView quantityView;
}
}
最初，我尝试使用此代码显示对话框:
Initially, I tried this code to display the dialog box:
private void showDialog(){
final Dialog dialog = new Dialog(this);
dialog.setContentView(R.layout.dialog_main);
dialog.show();
}
但它只显示一个空白行，很明显我没有正确填充它.
But it only shows, one blank row, it is very clear that I am not populating it properly.
有什么想法吗?此外，我可以在 showDialog() 函数中填充对话框，因为我在同一个 java 类中也有我想要填充的数据.
Any ideas anyone? Also, I can populate the dialog boxes in the showDialog() function since I also have the data I want to populate with in the same java class.
你在做以下事情吗?您将需要扩充布局文件 dialog_main，找到 ListView，为其设置适配器和 OnItemClickListener.在此之后，您可以使用对话框的 setContentView(View) 方法来获取要显示的列表.
Are you doing the following? You will need to inflate the layout file dialog_main, find the ListView, set an adapter and an OnItemClickListener for it. After this, you can use the dialog's setContentView(View) method to get the list to display.
private void showDialog(){
final Dialog dialog = new Dialog(this);
View view = getLayoutInflater().inflate(R.layout.dialog_main, null);
ListView lv = (ListView) view.findViewById(R.id.custom_list);
// Change MyActivity.this and myListOfItems to your own values
CustomListAdapterDialog clad = new CustomListAdapterDialog(MyActivity.this, myListOfItems);
lv.setAdapter(clad);
lv.setOnItemClickListener(........);
dialog.setContentView(view);
dialog.show();
}
顺便说一句，您的适配器看起来还不错.它不起作用，因为你没有给它任何工作.
By the way, your adapter looks alright. It isn't working because you're not giving it anything to work on.
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