您的内容必须具有ID属性为的ListView
'android.R.id.list'
我遇到这个错误,之前已经处理过。我尝试了很多不同的ID,等等,但没有帮助。正如您在下面看到的,名称确实是正确的。我认为这与我不熟悉片段和片段片段等有关。我已经发布了相关的代码,如果需要更多的代码,我会提供。
有任何想法吗?
public class DisplayInfo extends FragmentActivity {
SectionsPagerAdapter mSectionsPagerAdapter;
/**
* The {@link ViewPager} that will host the section contents.
*/
ViewPager mViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_display_info);
mSectionsPagerAdapter = new SectionsPagerAdapter(
getSupportFragmentManager());
new CreateTimetablesTask().execute();
Log.d("task done", "task");
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
}
}
public class DummySectionFragment extends ListFragment {
private Integer arrayListId;
ViewGroup myViewGroup;
public static final String CATEGORY_POSITION = "section_number";
public static DummySectionFragment newInstance(int pos) {
DummySectionFragment f = new DummySectionFragment();
// Supply num input as an argument.
Bundle args = new Bundle();
args.putInt(CATEGORY_POSITION, pos);
f.setArguments(args);
return f;
}
@Override
public void onCreate(Bundle savedInstanceState) {
//get the id for your array list
super.onCreate(savedInstanceState);
arrayListId = getArguments() != null ? getArguments().getInt(CATEGORY_POSITION) - 1 : 1;
}
//create the list view layout
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
myViewGroup = container;
View v = inflater.inflate(R.layout.list_row, container, false);
return v;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ArrayAdapter<SingleClass> arrayAdapter =
new ArrayAdapter<SingleClass>(getActivity(), R.layout.fragment_display_info, android.R.id.list);
setListAdapter(arrayAdapter);
}
}
fragment_display_info.xml
<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="fill_parent"
android:layout_height="wrap_content">
</ListView>
</LinearLayout>
activity_display_info.xml
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".DisplayOnlineTimetable" >
<!--
This title strip will display the currently visible page title, as well as the page
titles for adjacent pages.
-->
<android.support.v4.view.PagerTitleStrip
android:id="@+id/pager_title_strip"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:background="#33b5e5"
android:paddingBottom="4dp"
android:paddingTop="4dp"
android:textColor="#fff" />
最佳答案
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
myViewGroup = container;
View v = inflater.inflate(R.layout.fragment_display_info, container, false);
return v;
}
您在
ListFragment
的onCreateView
方法中给出了错误的布局。