错误充气类it.gmariotti.cardslib.library.view.CardListView

Question

我试图遵循这个例子，卡纸例子，但我遇到了一个异常，我不知道我做错了什么。

这是我的密码：

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>

下面是堆栈跟踪：

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

有人能解释一下为什么会出现异常吗?如何解决呢？

谢谢

编辑

以下是注释中所要求的方法。*之间的是确切的行

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();
        }
    }

Answer 1

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.

这是因为您试图在相同的View中放大两次相同的ViewGroup。

如果你想再次膨胀它，你必须创建一个新的实例，或者给出一个新的ID，或者删除旧的.

好的，在我写这篇文章的时候，你修正了这个错误，在评论中说：

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.

如果你再试着把defStyle放上去，我想它会起作用的。