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我是android开发中的新手,创建列表项是这两个类的代码。我试图从菜单移动到另一个活动(预付),这也实现了列表视图。问题是它不能移动到预付费活动。另外我的标题是从菜单类中缺少的,如何在菜单类上显示标题栏?从一个ListView移动到另一个ListView
菜单类
public class Menu extends ListActivity {
String classes[] = {"Prepaid" , "Postpaid"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setListAdapter(new ArrayAdapter<String>(Menu.this, android.R.layout.simple_list_item_1, classes));
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
String whichItemClicked = classes[position];
try
{
Class ourClass = Class.forName("adnan.com.ufone" + whichItemClicked);
Intent ourIntent = new Intent(Menu.this, ourClass);
startActivity(ourIntent);
}
catch (ClassNotFoundException e)
{
e.printStackTrace();
}
}
}
预付类
public class Prepaid extends ListActivity {
String prepaidServices[] = {"UAdbanced" , "Packages", "Internet"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setListAdapter(new ArrayAdapter<String>(Prepaid.this , android.R.layout.simple_list_item_1, prepaidServices));
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
String ItemClicket = prepaidServices[position];
try{
Class myClass = Class.forName("adnan.com.ufone" + ItemClicket);
Intent myIntent = new Intent(Prepaid.this, myClass);
startActivity(myIntent);
}
catch (ClassNotFoundException e){
e.printStackTrace();
}
}
}
尝试'Class ourClass = Class.forName(“adnan.com.ufone。”+ whichItemClicked);'你只需要'add。(dot)' –
让我检查@MD –
它的工作原理谢谢你为什么不给我是一个适当的答案,以便我接受你的答案?还请告诉我为什么我的标题在这两项活动中都失踪了? –