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我正在尝试遵循这个示例cardslib 示例，但我遇到了一个异常，我看不出我做错了什么。

这是我的代码：

public class FragmentA extends Fragment{

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {

        final View view = inflater.inflate(R.layout.cards_teste, container, true);
//      CardView cardView = (CardView) inflater.inflate(R.layout.cards_teste, container, false);
        ArrayList<Card> cards = new ArrayList<Card>();

        //Create a Card
        Card card = new Card(getActivity());

        //Create a CardHeader
        CardHeader header = new CardHeader(getActivity());

        //Add Header to card
        card.addCardHeader(header);
        cards.add(card);

        CardArrayAdapter mCardArrayAdapter = new CardArrayAdapter(getActivity(), cards);

        CardListView listView = (CardListView) view.findViewById(R.id.myList_teste);

        if (listView!=null)
        {
            listView.setAdapter(mCardArrayAdapter);
        }
//      return cardView;
        return view;
    }
}

这是我的 XML 文件：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <it.gmariotti.cardslib.library.view.CardListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/myList_teste"/>

</LinearLayout>

这是堆栈跟踪：

06-05 23:26:54.250: E/AndroidRuntime(3367): FATAL EXCEPTION: main
06-05 23:26:54.250: E/AndroidRuntime(3367): Process: com.mypackage.android.design.appdesgin, PID: 3367
06-05 23:26:54.250: E/AndroidRuntime(3367): android.view.InflateException: Binary XML file line #7: Error inflating class it.gmariotti.cardslib.library.view.CardListView
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.view.LayoutInflater.createView(LayoutInflater.java:620)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at com.mypackage.android.design.appdesgin.fragments.FragmentA.onCreateView(FragmentA.java:23)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.app.Fragment.performCreateView(Fragment.java:1700)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:890)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1062)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.app.BackStackRecord.run(BackStackRecord.java:684)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1447)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.app.FragmentManagerImpl$1.run(FragmentManager.java:443)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.os.Handler.handleCallback(Handler.java:733)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.os.Handler.dispatchMessage(Handler.java:95)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.os.Looper.loop(Looper.java:136)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.app.ActivityThread.main(ActivityThread.java:5081)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at java.lang.reflect.Method.invokeNative(Native Method)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at java.lang.reflect.Method.invoke(Method.java:515)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at dalvik.system.NativeStart.main(Native Method)
06-05 23:26:54.250: E/AndroidRuntime(3367): Caused by: java.lang.reflect.InvocationTargetException
06-05 23:26:54.250: E/AndroidRuntime(3367):     at java.lang.reflect.Constructor.constructNative(Native Method)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at android.view.LayoutInflater.createView(LayoutInflater.java:594)
06-05 23:26:54.250: E/AndroidRuntime(3367):     ... 20 more
06-05 23:26:54.250: E/AndroidRuntime(3367): Caused by: java.lang.NoClassDefFoundError: it.gmariotti.cardslib.library.R$styleable
06-05 23:26:54.250: E/AndroidRuntime(3367):     at it.gmariotti.cardslib.library.view.CardListView.initAttrs(CardListView.java:146)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at it.gmariotti.cardslib.library.view.CardListView.init(CardListView.java:127)
06-05 23:26:54.250: E/AndroidRuntime(3367):     at it.gmariotti.cardslib.library.view.CardListView.<init>(CardListView.java:106)
06-05 23:26:54.250: E/AndroidRuntime(3367):     ... 23 more

有人可以解释一下为什么会发生异常以及如何解决它吗？

谢谢

编辑

这是评论中要求的方法。** ** 之间的内容是确切的行

protected void initAttrs(AttributeSet attrs, int defStyle) {

        list_card_layout_resourceID = R.layout.list_card_layout;

        TypedArray a = getContext().getTheme().obtainStyledAttributes(
                **attrs, R.styleable.card_options, defStyle, defStyle);**

        try {
            list_card_layout_resourceID = a.getResourceId(R.styleable.card_options_list_card_layout_resourceID, this.list_card_layout_resourceID);
        } finally {
            a.recycle();
        }
    }
4

1 回答 1

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您的主要错误是：java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.

这是因为你试图在同一个中充气View两次ViewGroup。

如果你想再次膨胀它，你必须创建一个新实例，或者提供一个新的 ID，或者删除旧的......

好的，现在当我写这篇文章时，你在评论中修复了这个错误：

hat exception was me that forgot to pass attachToRoot as false in the inflate method. With attachToRoot as true no exception is generated and the layout is inflated successfully.

如果您尝试再次放置defStyle，我认为它会起作用。

于 2014-06-06T11:11:51.363 回答