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我需要檢索Listview中項目的_id。我現在所能得到的就是這個位置。我怎樣才能做到這一點?。這是我正在使用的代碼。如何從ListView中檢索_id位置
public class OSListActivity extends ListActivity {
................
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
................
................
MatrixCursor cursor;
cursor = datasource.getnameList();
if (cursor.moveToFirst()) {
startManagingCursor(cursor);
String vdstatus = cursor.getString(6);
System.out.println("vdstatus : " + vdstatus);
String[] from = { "name", "desc", "status", "path", "folder",
BaseColumns._ID };
int[] to = { R.id.name, R.id.desc, R.id.status, R.id.path };
final VSsimplecursoradapter adapter = new VSsimplecursoradapter(
this, R.layout.row, cursor, from, to);
setListAdapter(adapter);
}
}
@Override
public void onListItemClick(ListView parent, View view, int position,
long id) {
Intent intent = new Intent(this, VSDetailsActivity.class);
intent.putExtra("com.manager.boot.r1223."+BaseColumns._ID, position);//TODO put _id instead of position
startActivity(intent);
}
}
編輯:解
public void onListItemClick(ListView parent, View view, int position,
long id) {
// Starts TestDetails activity on clicking a list item.
Cursor cursor = (Cursor) adapter.getItem(position);
Intent intent = new Intent(this, VSDetailsActivity.class);
intent.putExtra("com.manager.boot.r1223."+BaseColumns._ID, cursor.getInt(cursor
.getColumnIndex("_id")));
startActivity(intent);
}
什麼是_id?你需要詳細說明。 – straya 2012-03-01 01:44:14
@straya它是適配器用作列名稱的字符串'BaseColumns._ID'。 – 2012-03-01 01:45:54
爲什麼在問一個問題時不要模棱兩可的好例子! – straya 2012-03-01 02:09:30