setAdapter“调用需要API级别11（当前最小值为8）：android.widget.AbsListView #setAdapter”？

Question

I'm calling the setAdapter() method in a class that extends Fragment . Note that I have imported android.support.v4.app.Fragment .

However I get an error stating that the API level is required to be level 11.

What do I have to do so that I can fix this without changing minSdkVersion="8" to minSdkVersion="11"

package foo.bar.qux;

import java.util.Calendar;
import java.util.Date;

import org.w3c.dom.Document;
import org.w3c.dom.NodeList;

import android.support.v4.app.Fragment;

import android.app.Activity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;

public class TabFragmentList extends Fragment {

    String category, xml;
    NodeList nodes;
    int numResults;
    private ListView lv;
    Date date;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        if (container == null) return null;
        return (LinearLayout) inflater.inflate(R.layout.eventlist, container,
                false);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        Activity activity = getActivity();
        if (activity != null) {
            final Calendar c = Calendar.getInstance();
            ListContent[] item = new ListContent[3];
            category = (String) activity.getIntent().getExtras()
                    .get("category");
            xml = (String) activity.getIntent().getExtras().get("xml");
            TextView tv = (TextView) getView().findViewById(R.id.category);
            tv.setText(category);
            nodes = doc.getElementsByTagName("event");
            for (int i = 0; i < 3; i++) {
                c.add(Calendar.DATE, 1);
                date = c.getTime();
                item[i] = new ListContent();
                item[i].setList(nodes, category, date);
            }
            EventListAdapter adapter = new EventListAdapter(activity,
                    R.layout.eventlist_row, item);
            lv = (ListView) getView().findViewById(R.id.listView1);
            lv.setAdapter(adapter); // ERROR SHOWN HERE
        }
    }
}

Note : I tried reducing the targetSdkVersion to 10. Yet I get the error. Please help!

Edit : I don't understand why it's termed as AbsListVew when all that I have used is a ListView . Also, note that I've used a custom adapter.

EventListAdapter extends ArrayAdaptere<ListContent> and shows NO ERROR.

For your reference here is the xml layout code snippet for R.id.ListView1

<ListView
        android:layout_margin="10dp"
        android:dividerHeight="10.0sp"
        android:id="@+id/listView1"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

Answer 1

Right click on the project folder > Android tools > Clear Link Markers

“运行Android Lint”会使一些标记和标记导致此错误。

Answer 2

Solution is just casting type to correct subtype as later Android versions introduced method call with same name.

@SuppressWarnings({ "unchecked", "rawtypes" })

EventListAdapter adapter = new EventListAdapter(activity, R.layout.eventlist_row, item);
lv = (ListView) getView().findViewById(R.id.listView1);
((AdapterView)lv).setAdapter(adapter); //ERROR SOLVED HERE

Answer 3

正如你可以在文档中看到setAdapter()的方法AbsListView可刚刚从API级别11.因此，有没有什么可以做，你可以只投最终你AbsListView到ListView或GridView ，然后调用setAdapter()

Answer 4

I solved the "abstract method not implemented error" by casting my setAdapter method like this:

 @SuppressWarnings("unchecked")
 public void setAdapterSDK8(Adapter adapter) {
    ((AdapterView) this).setAdapter(adapter);
    ((StaggeredGridView) this).setAdapter((ListAdapter) adapter);
 }

This is related to the etsy staggered gridview