我目前正在尝试修复错误“您的内容必须有一个ListView,其id属性为'android.R.list'。
我在Stack Exchange上找到了以下问题的答案:
Your content must have a ListView whose id attribute is 'android.R.id.list'
我已经应用了解决方案,但后来我想问这个问题:
“那我如何引用android定义的XML标签?
然而,由于声誉系统,我无法评论这个小问题。我为此道歉,但有人可以回答这个问题吗?
提前谢谢。
有关您的信息,这是我的列表视图:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</ListView>
</LinearLayout>
这就是我想要传递的内容:
lv = (ListView) convertView.findViewById(R.id.ExceedingList);
这就是我得到的错误:
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.denny.phonebelt/com.example.denny.phonebelt.SettingsMenu}: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
如果由于某种原因问题是由另一个错误引起的,我会在这里给出实际的代码:
final Button ExceedingLimitButton = (Button)findViewById(R.id.ExceedingLimitButton);
ExceedingLimitButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final AlertDialog.Builder ExceedingLimitDialog = new AlertDialog.Builder(SettingsMenu.this);
//Setting ListView
LayoutInflater inflater = getLayoutInflater();
View convertView = inflater.inflate(R.layout.exceeding_dialog, null);
lv = (ListView) convertView.findViewById(android.R.id.list);
ArrayAdapter<String> adapter = new ArrayAdapter<>(SettingsMenu.this, android.R.layout.simple_list_item_single_choice, ExceedingSelection);
lv.setAdapter(adapter);
lv.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
int SelectedItem = Integer.parseInt(ExceedingSelection[position]);
PhoneBelt.setExceedInt(SelectedItem);
String Selection = getString(R.string.Selection);
String message = (Selection + SelectedItem);
Toast toast = Toast.makeText(SettingsMenu.this, message, Toast.LENGTH_LONG);
toast.show();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
Toast toast = Toast.makeText(SettingsMenu.this, "You have not selected anything", Toast.LENGTH_SHORT);
toast.show();
}
});
ExceedingLimitDialog.setView(convertView);
ExceedingLimitDialog.setTitle(R.string.Exceeding_Limit_Title);
ExceedingLimitDialog.setMessage(R.string.Exceeding_Limit_Message);
ExceedingLimitDialog.setCancelable(true);
AlertDialog alert = ExceedingLimitDialog.create();
alert.show();
}
});
答案 0 :(得分:2)
而不是:
android:id="@android:id/list"
写:
android:id="@+id/list"
您必须声明一个新ID并用它标记列表。
答案 1 :(得分:0)
使用此:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:id="@id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</ListView>
</LinearLayout>
答案 2 :(得分:0)
您对java代码的引用是>>> [{i[0] : list(i[1:])} for i in list_of_tuples]
[{'company_name': [56, 'green']}, {'other_company': [43, 'blue']}]
。但在xml中是ExceedingList
。你也应该创建新的id。
所以,
list
如果您使用 android:id="@+id/ExceedingList"
表示您尝试引用已创建的ID(android:id="@android:id/ExceedingList"
)
然后致电,
ExceedingList
这可能有助于你