我在 Linearlayout 中有一个 ListView。列表视图有一个自定义光标适配器。一切正常,除了 ListView 不滚动。
任何建议都非常欢迎!!谢谢。毛里齐奥
这是 MainActivity 的 XML
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Button
android:id="@+id/buttonAdd"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="Aggiungi" />
<ListView
android:id="@+id/list"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
这是相关的java代码。
public class MainActivity extends Activity {
private DatabaseHelper db=null;
private Cursor tabellaCursor=null;
private ListAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
int[] to = new int[] {R.id.name_entry};
db = new DatabaseHelper(this);
tabellaCursor=db.getWritableDatabase().rawQuery("SELECT _id, colonna1, colo nna2, colonna3 FROM tabella ORDER BY _id", null);
ListAdapter adapter=new MyAdapter(this, R.layout.list_example_entry, tabe llaCursor, new String[]{"colonna1"},to);
ListView lt = (ListView)findViewById(R.id.list);
lt.setAdapter(adapter);
Button addbtn=(Button)findViewById(R.id.buttonAdd);
addbtn.setOnClickListener(new OnClickListener()
{public void onClick(View v){add(); }
});
}