我的 ListView 目前只能显示一列数据。我希望它显示两列数据。
这是我的 ListView 的代码:
public class ProjectExplorer extends ListActivity {
private projectdatabase database;
protected Cursor cursor;
protected ListAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
database = new projectdatabase(ProjectExplorer.this);
getinfo();
}
private void getinfo() {
database.open();
cursor = database.getDataforDisplay();
adapter = new SimpleCursorAdapter(this, android.R.layout.simple_list_item_1, cursor, new String[] {"project_name"}, new int[] { android.R.id.text1 }, 0);
setListAdapter(adapter);
}
@Override
public void onListItemClick(ListView parent, View view, int position, long id) {
super.onListItemClick(parent, view, position, id);
Cursor c = ((SimpleCursorAdapter)parent.getAdapter()).getCursor();
c.moveToPosition(position);
// get project name here
String str_projectname= c.getString(c.getColumnIndex("project_name"));
Toast.makeText(this, str_projectname, Toast.LENGTH_LONG).show();
}
这是数据库类中返回游标的方法:
public Cursor getDataforDisplay () {
String[] columns = new String[] {KEY_ROWID, PROJECT_NAME, PROJECT_FINISH_DATE, PROJECT_DIFFICULTY, PROJECT_STATUS};
Cursor c = projectDatabase.query(DATABASE_TABLE, columns, null, null, null, null, null);
projectDatabase.query(DATABASE_TABLE, columns, null, null, null, null, null);
c.moveToFirst();
return c;
}
我还想显示定义为 _id 的 KEY_ROWID