我正在尝试使用Cardlib库以及可以刷出并撤消的卡片列表。 我的问题是撤消栏总是显示并点击撤消不会执行任何操作。通过调试,我意识到我的问题是CardArrayAdapter需要一个在尝试检索undobar的LinearLayout时将使用的上下文。但是当我将主Activity作为上下文传递时,它找不到unsobar。Cardslib片段撤消刷卡
我的代码如下:
MainActivity.java:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_layout);
BudgetCardFragment budgetCardFragment = (BudgetCardFragment)getSupportFragmentManager().
findFragmentById(R.id.fragment_budget_cards);
}
main_layout.xml:
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/fragment_budget_cards"
android:name="com.test.view.fragment.BudgetCardFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.test.Main"
tools:layout="@android:layout/list_content" />
BudgetCardFragment.java:
public class BudgetCardFragment extends Fragment {
public BudgetCardFragment(){}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_budget_card, container, true);
CardListView listView = (CardListView)rootView.findViewById(R.id.myList);
List<Card> cards= new ArrayList<Card>();
for (int i = 0; i < 3; i++) {
BudgetCard budgetCard = new BudgetCard(getActivity(), mListCategory.get(i).getName());
cards.add(budgetCard);
}
BudgetCardAdapter budgetCardAdapter = new BudgetCardAdapter(getActivity(), cards);
if (listView != null) {
listView.setAdapter(budgetCardAdapter);
}
return rootView;
}
}
fragment_budget_card.xml :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.test.Main">
<it.gmariotti.cardslib.library.view.CardListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/myList"/>
<!-- Include undo message layout -->
<include layout="@layout/list_card_undo_message"/>
</RelativeLayout>
BudgetCardAdapter.java:
public class BudgetCardAdapter extends CardArrayAdapter {
private Context mContext;
private List<Card> cards;
public BudgetCardAdapter(Context context, List<Card> cards) {
super(context, cards);
this.mContext = context;
this.cards = cards;
//Enable undo controller
setEnableUndo(true);
}
@Override
public int getCount() {
return cards.size();
}
@Override
public Card getItem(int position) {
return cards.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
}
我得到的结果是我的卡列表(这是很好)与撤消栏右键在屏幕中间的时候我没有刷出什么卡尚未(这不好)。 感谢您的帮助,我一整天都在努力寻找解决方案。
谢谢加布里埃尔。你的意思是将代码片段添加到适配器中吗?我已经在BudgetCardAdapter中使用它了。还是你的意思是别的? – Gregriggins36 2014-09-25 13:31:46
我的意思是它可能是危险的 – 2014-09-25 13:36:51