android - java.lang.IllegalArgumentException : No view found for id 0x1020002 (android:id/content) for fragment

Question

我正在尝试从一个 fragment 移动到另一个 fragment 。它在 fragment 事务期间显示以下错误-

    java.lang.IllegalArgumentException: No view found for id 0x1020002 (android:id/content) for fragment PhotosFragment2{41a57218 #3 id=0x1020002}
            at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:930)
            at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1115)
            at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
            at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1478)
            at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:446)
            at android.os.Handler.handleCallback(Handler.java:615)
            at android.os.Handler.dispatchMessage(Handler.java:92)
            at android.os.Looper.loop(Looper.java:153)
            at android.app.ActivityThread.main(ActivityThread.java:5086)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:821)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
            at dalvik.system.NativeStart.main(Native Method)

以下是类。我使用以下代码进行 fragment 事务

Fragment fragment = new PhotosFragment2();

                        FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
                        fragmentTransaction.replace(android.R.id.content, fragment);
                        fragmentTransaction.commit();

PhotosFragment.java

   public class PhotosFragment extends Fragment {
        private FragmentActivity myContext;
        @Override
        public void onAttach(Activity activity) {
            myContext = (FragmentActivity) activity;
            super.onAttach(activity);
        }

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

            View rootView = inflater.inflate(R.layout.photos, container, false);

            rootView.setVerticalScrollBarEnabled(false);
            int[] mThumbIds = {
                    R.drawable.album8, R.drawable.album3,
                    R.drawable.album4, R.drawable.album8,
                    R.drawable.album6, R.drawable.album7,
                    R.drawable.album12, R.drawable.album10,
            };

            int[] mThumbIds2 = {
                    R.drawable.album8, R.drawable.album3,
                    R.drawable.album4,
                    R.drawable.album6, R.drawable.album7,
                    R.drawable.album9, R.drawable.album10,
                    R.drawable.album11, R.drawable.album12, R.drawable.album8,
                    R.drawable.album8, R.drawable.album3,
                    R.drawable.album4,
                    R.drawable.album6, R.drawable.album7,
                    R.drawable.album9, R.drawable.album10,
                    R.drawable.album11, R.drawable.album12, R.drawable.album8,
            };

            CustomGridSingle2 adapter = new CustomGridSingle2(myContext, mThumbIds);
            GridView grid = (GridView)rootView.findViewById(R.id.gridView);
            final ImageView img= (ImageView)rootView.findViewById(R.id.imageView7);
            grid.setFocusable(false);

            grid.setAdapter(adapter);
    grid.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            Fragment fragment = new PhotosFragment2();

            FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
            fragmentTransaction.replace(android.R.id.content, fragment);
            fragmentTransaction.commit();
        }
    });
            CustomGridSingle2 adapter2 = new CustomGridSingle2(myContext, mThumbIds2);
            GridView grid2 = (GridView)rootView.findViewById(R.id.gridView2);
            grid2.setFocusable(false);
            grid2.setAdapter(adapter2);
            grid2.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                    Fragment fragment = new PhotosFragment2();

                    FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
                    fragmentTransaction.replace(android.R.id.content, fragment);
                    fragmentTransaction.commit();
                }
            });

            return rootView;
        }


    }

PhotosFragment2.java

public class PhotosFragment2 extends Fragment {
    private FragmentActivity myContext;
    @Override
    public void onAttach(Activity activity) {
        myContext = (FragmentActivity) activity;
        super.onAttach(activity);
    }
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        View rootView = inflater.inflate(R.layout.photos2, container, false);
        myContext.getActionBar().hide();
        return rootView;
    }
}

Activity xml文件

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <FrameLayout
        android:id="@+id/frame_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <LinearLayout
        android:id="@+id/left_drawer_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="@drawable/bgmenu"
        android:orientation="vertical">

        <RelativeLayout
            android:id="@+id/profilelayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="0"
            android:paddingTop="10dp">


            <ImageView
                android:id="@+id/drawer_profile_image"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignBottom="@+id/drawer_profile_background"
                android:layout_alignLeft="@+id/drawer_profile_background"
                android:layout_alignRight="@+id/drawer_profile_background"
                android:layout_alignTop="@+id/drawer_profile_background"
                android:layout_marginBottom="7.667dp"
                android:layout_marginLeft="6.5dp"
                android:layout_marginRight="8.3dp"
                android:layout_marginTop="7.667dp"
                android:scaleType="centerCrop"></ImageView>


            <ImageView
                android:id="@+id/drawer_profile_background"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerHorizontal="true"
                android:scaleType="centerCrop"
                android:src="@drawable/profileblock">

            </ImageView>

            <ImageView
                android:id="@+id/settingicon"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignBottom="@+id/drawer_profile_background"
                android:layout_marginLeft="-15dp"
                android:layout_toRightOf="@+id/drawer_profile_background"
                android:background="@drawable/settings" />

            <textview
                android:id="@+id/username"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@+id/drawer_profile_background"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="5dp"
                android:text="Name"
                android:textAppearance="?android:attr/textAppearanceListItemSmall"
                android:textColor="@android:color/white" />


        </RelativeLayout>


        <ListView
            android:id="@+id/list_slidermenu"
            style="@style/buttonStyle"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_marginTop="30dp"
            android:layout_weight="2"
            android:cacheColorHint="@android:color/transparent"
            android:choiceMode="singleChoice"
            android:divider="@android:color/transparent"
            android:dividerHeight="1dp"
            android:listSelector="@android:color/transparent"
            android:scrollbars="none" />

    </LinearLayout>
</android.support.v4.widget.DrawerLayout>

Answer 1

当您使用 fragmentTransaction.replace(R.id.container,fragment) 时，它将删除容器中已经存在的所有 fragment 并将新 fragment 添加到同一容器中。

现在我可以建议你两件事。首先，如果你想使用你现在正在做的 fragmentTransaction.replace(android.R.id.content, fragment);，那么不要' t 使用 setContentView 为您的 Activity 设置内容。这应该可以正常工作。要知道 android.R.id.content 到底是什么，您可以引用 this stackoverflow question and answer

或者其次，在您的 Activity 布局中有一个 FrameLayout，其 id 是 content。然后使用

fragmentTransaction.replace(R.id.content, fragment);  
fragmentTransaction.addToBackStack(null);//add the transaction to the back stack so the user can navigate back
// Commit the transaction
fragmentTransaction.commit();  

希望这会有所帮助。

更多信息:

从您的评论看来，您在获得在 Activity 的布局中使用 FrameLayout 的想法时遇到了一些问题(不是任何 fragment 的布局)。来自Documents

FrameLayout is designed to block out an area on the screen to display a single item. Generally, FrameLayout should be used to hold a single child view, because it can be difficult to organize child views in a way that's scalable to different screen sizes without the children overlapping each other.

所以 FrameLayout 的主要目的是为了遮挡住适合最大 subview 所需的区域。如果您使用 FrameLayout 作为 Fragment 容器，您可以确保始终有可用空间来容纳最大的 Fragment 的布局。

因此，您可以在 Activity 的布局 xml 文件中包含类似的 FrameLayout 内容

<FrameLayout
    android:id="@+id/content"
    android:layout_height="match_parent"
    android:layout_width="match_parent">
 <!--you can put your existing views of your current xml here, so yes your entire xml is now inside this FrameLayout -->
</FrameLayout>