得到標題我試圖通過從數據庫獲取記錄並在左側抽屜中顯示它們來創建導航抽屜。如何從導航抽屜菜單項
通過執行以下操作,我能夠成功完成,但問題是,當在導航抽屜中單擊菜單項時,我想獲取它的標題。但我只是獲得它的立場。
DrawerLayout mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
List<DataItems> myTest = myDbAdapter.getValuesFromDb(); // method in DbAdapter class
// to get records from db.
// Pass the data to ListView adapter
MyNavigationDrawerAdapter adapter = new MyNavigationDrawerAdapter(
this,
R.layout.drawer_listview_item,
myTest);
// Set the adapter for the list view
mDrawerList.setAdapter(adapter);
// set the item click listener
mDrawerList.setOnItemClickListener(new NavigationDrawerItemClickListener());
// navigation drawer click listener
private class NavigationDrawerItemClickListener implements ListView.OnItemClickListener
{
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
Log.i("Position", "" + position); // prints the position successfully
Log.i("Value", "" + myTest.get(position).getTitle()); // prints null
}
}
能否請你告訴我,爲什麼這個myTest.get(位置).getTitle()這是空。我在這裏錯過了什麼?
你爲什麼不創建一個字符串數組和取值根據位置 – SMR 2014-09-29 10:02:05
嘗試在myTest中調試你的代碼的值 – Pr38y 2014-09-29 10:06:34
@SMR你的意思是說我的應該這樣做: 'String [] array = new String [...]'而不是List myTest? –
2014-09-29 10:09:37