得到标题我试图通过从数据库获取记录并在左侧抽屉中显示它们来创建导航抽屉。如何从导航抽屉菜单项
通过执行以下操作,我能够成功完成,但问题是,当在导航抽屉中单击菜单项时,我想获取它的标题。但我只是获得它的立场。
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
}
}
能否请你告诉我,为什么这个myTest.get(位置).getTitle()这是空。我在这里错过了什么?
你为什么不创建一个字符串数组和取值根据位置 – SMR 2014-09-29 10:02:05
尝试在myTest中调试你的代码的值 – Pr38y 2014-09-29 10:06:34
@SMR你的意思是说我的应该这样做: 'String [] array = new String [...]'而不是List myTest? –
2014-09-29 10:09:37