11

根据这个链接：ListFragment android 开发者

我想为列表设置我的自定义布局，但它有例外。

这是代码：

public class ListFragmentActivity extends FragmentActivity {

@Override
public void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    FragmentManager fm = getSupportFragmentManager();
    if(fm.findFragmentById(android.R.id.content) == null)
    {
        myListFragments list = new myListFragments();
        fm.beginTransaction().add(android.R.id.content, list).commit();
    }
}

public static class myListFragments extends ListFragment
{
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        return inflater.inflate(R.layout.topoffers, container, false);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onActivityCreated(savedInstanceState);
        List<OfferModel> offers = Global.getInstance().getOffers();
        List<OfferModel> topOffers = new ArrayList<OfferModel>(4);
        for (int i = 0; i < 4; i++) {
            if (offers.get(i).getOfferImage() == null)
                offers.get(i).setOfferImage(
                        downloadFile(offers.get(i).getOfferImageUrl()));
            topOffers.add(offers.get(i));
        }
        LazyAdapter adapter = new LazyAdapter(getActivity());
        adapter.setData(topOffers);
        setListAdapter(adapter);
        setListShown(true);
    }

    public Bitmap downloadFile(String fileUrl) {
        URL myFileUrl = null;
        try {
            myFileUrl = new URL(fileUrl);
        } catch (MalformedURLException e) {
            e.printStackTrace();
            return null;
        }
        try {
            HttpURLConnection conn = (HttpURLConnection) myFileUrl
                    .openConnection();
            conn.setDoInput(true);
            conn.connect();
            InputStream is = conn.getInputStream();
            return BitmapFactory.decodeStream(is);
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }
}}

我的自定义布局是R.layout.topoffers

日志猫：

 05-15 21:43:56.975: W/dalvikvm(218): threadid=3: thread exiting with uncaught exception (group=0x4001b188) 
 05-15 21:43:56.975: E/AndroidRuntime(218): Uncaught handler: thread main exiting due to uncaught exception
 05-15 21:43:56.995: E/AndroidRuntime(218): java.lang.RuntimeException: Unable to start activity ComponentInfo{org.anddev.android.ikiwi/org.anddev.android.ikiwi.ListFragmentActivity}:
    java.lang.IllegalStateException: Can't be used with a custom content view 
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496) 
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512) 
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.app.ActivityThread.access$2200(ActivityThread.java:119) 
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.os.Handler.dispatchMessage(Handler.java:99) 
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.os.Looper.loop(Looper.java:123) 
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.app.ActivityThread.main(ActivityThread.java:4363) 
 05-15 21:43:56.995: E/AndroidRuntime(218):     at java.lang.reflect.Method.invokeNative(Native Method) 
 05-15 21:43:56.995: E/AndroidRuntime(218):     at java.lang.reflect.Method.invoke(Method.java:521) 
 05-15 21:43:56.995: E/AndroidRuntime(218):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
 05-15 21:43:56.995: E/AndroidRuntime(218):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
 05-15 21:43:56.995: E/AndroidRuntime(218):     at dalvik.system.NativeStart.main(Native Method) 
 05-15 21:43:56.995: E/AndroidRuntime(218): Caused by: java.lang.IllegalStateException:
    Can't be used with a custom content view 
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.support.v4.app.ListFragment.setListShown(ListFragment.java:282)
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.support.v4.app.ListFragment.setListShown(ListFragment.java:258)
 05-15 21:43:56.995: E/AndroidRuntime(218):     at org.anddev.android.ikiwi.ListFragmentActivity$myListFragments.onActivityCreated(ListFragmentActivity.java:57)
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:891)
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1080)
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:622)
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1416)
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:505)
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1129)
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.app.Activity.performStart(Activity.java:3723) 
 05-15 21:43:56.995: E/AndroidRuntime(218):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2468)
 05-15 21:43:56.995: E/AndroidRuntime(218):     ... 11 more 
 05-15 21:43:57.025: I/dalvikvm(218): threadid=7: reacting to signal 3 
 05-15 21:43:57.025: E/dalvikvm(218): Unable to open stack trace file '/data/anr/traces.txt': Permission denied
4

10 回答 10

23

创建布局文件list_content.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
    
    <LinearLayout android:id="@+id/progressContainer"
            android:orientation="vertical"
            android:layout_width="match_parent" 
            android:layout_height="match_parent"
            android:visibility="gone"
            android:gravity="center">
        
        <ProgressBar style="?android:attr/progressBarStyleLarge"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />
        <TextView android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceSmall"
                android:text=""
                android:paddingTop="4dip"
                android:singleLine="true" />
            
    </LinearLayout>
        
    <FrameLayout android:id="@+id/listContainer"
            android:layout_width="match_parent" 
            android:layout_height="match_parent">
            
        <ListView android:id="@android:id/list"
                android:layout_width="match_parent" 
                android:layout_height="match_parent"
                android:drawSelectorOnTop="false" />
        <TextView android:id="@+id/internalEmpty"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center"
                android:textAppearance="?android:attr/textAppearanceLarge" />
    </FrameLayout>
        
</FrameLayout>

把它放在你的ListFragment类中：

public ListView mList;
boolean mListShown;
View mProgressContainer;
View mListContainer;

public void setListShown(boolean shown, boolean animate){
    if (mListShown == shown) {
        return;
    }
    mListShown = shown;
    if (shown) {
        if (animate) {
            mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
                    getActivity(), android.R.anim.fade_out));
            mListContainer.startAnimation(AnimationUtils.loadAnimation(
                    getActivity(), android.R.anim.fade_in));
        }
        mProgressContainer.setVisibility(View.GONE);
        mListContainer.setVisibility(View.VISIBLE);
    } else {
        if (animate) {
            mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
                    getActivity(), android.R.anim.fade_in));
            mListContainer.startAnimation(AnimationUtils.loadAnimation(
                    getActivity(), android.R.anim.fade_out));
        }
        mProgressContainer.setVisibility(View.VISIBLE);
        mListContainer.setVisibility(View.INVISIBLE);
    }
}
public void setListShown(boolean shown){
    setListShown(shown, true);
}
public void setListShownNoAnimation(boolean shown) {
    setListShown(shown, false);
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    int INTERNAL_EMPTY_ID = 0x00ff0001;
    View root = inflater.inflate(R.layout.list_content, container, false);
    (root.findViewById(R.id.internalEmpty)).setId(INTERNAL_EMPTY_ID);
    mList = (ListView) root.findViewById(android.R.id.list);
    mListContainer =  root.findViewById(R.id.listContainer);
    mProgressContainer = root.findViewById(R.id.progressContainer);
    mListShown = true;
    return root;
}

现在可以正常使用了：

setListShown(boolean shown);
setListShown(boolean shown, boolean animate);
setListShownNoAnimation(boolean shown);

资源：

http://source-android.frandroid.com/frameworks/base/core/java/android/app/ListFragment.java

http://source-android.frandroid.com/frameworks/base/core/res/res/layout/list_content.xml

于 2012-09-19T23:06:44.467 回答
14

这可能更容易：像往常一样创建布局，但不要添加列表/空/加载内容。然后在您的 listfragment 的 onCreateView 中：

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View v = super.onCreateView(inflater, container, savedInstanceState);
    ViewGroup parent = (ViewGroup) inflater.inflate(R.layout.mylayout, container, false);
    parent.addView(v, 0);
    return parent;
}

现在你可以使用 setListShown...

于 2013-05-22T08:58:55.367 回答
8

只需在 onCreateView 方法中将原始 ListView 替换为您的 CustomListView 布局即可。为我工作。

    @Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View layout = super.onCreateView(inflater, container,
            savedInstanceState);
    ListView lv = (ListView) layout.findViewById(android.R.id.list);
    ViewGroup parent = (ViewGroup) lv.getParent();

    // Remove ListView and add CustomView  in its place
    int lvIndex = parent.indexOfChild(lv);
    parent.removeViewAt(lvIndex);
    LinearLayout mLinearLayout = (LinearLayout) inflater.inflate(
            R.layout.custom_list, container, false);
    parent.addView(mLinearLayout, lvIndex, lv.getLayoutParams());
    return layout;
}
于 2013-04-08T13:42:05.380 回答
5

这听起来像是已经向 Google 报告的问题。

谷歌问题

如果这确实是您的问题，那么该页面底部有一些修复它的建议（嗯，使其工作比修复它更多）。

于 2012-05-16T04:29:17.550 回答
2

今天我遇到了同样的问题。在谷歌中寻找解决方案，我在一个日本博客中找到了一篇文章。（http://blog.nkzn.net/entry/2012/06/14/160706）。

要使用setListShown(boolean)，您必须首先在布局中执行：

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

    <FrameLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <ListView
        android:id="@android:id/list"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
    </ListView>
    </FrameLayout>

    <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_centerInParent="true"
    android:gravity="center"
    android:visibility="gone" >

    <ProgressBar
        android:id="@android:id/progress"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    </LinearLayout>
</RelativeLayout>

现在在您的 ListFragment 中：

public class SampleListFragment extends ListFragment {

  /** ID for progressbar parent */
  private static final int INTERNAL_PROGRESS_CONTAINER_ID = 0x00ff0002;
  /** ID for listview parent */
  private static final int INTERNAL_LIST_CONTAINER_ID = 0x00ff0003;

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.custom_list_layout, container, false);

    // get you progressBar and his parent
    ProgressBar pBar = (ProgressBar) view.findViewById(android.R.id.progress);
    LinearLayout pframe = (LinearLayout) pBar.getParent();
    pframe.setId(INTERNAL_PROGRESS_CONTAINER_ID);

    ListView listView = (ListView) view.findViewById(android.R.id.list);
    listView.setItemsCanFocus(false);
    FrameLayout lFrame = (FrameLayout) listView.getParent();
    lFrame.setId(INTERNAL_LIST_CONTAINER_ID);    

    return view;
  } 
}

在他的父母 setListShown(boolean) 中设置的这 2 个 id 数字将毫无问题地工作。

于 2013-05-08T23:08:12.647 回答
1

另一个对我有用的解决方案就是把这条线

<include layout="@android:layout/list_content" />

而不是您的列表视图。

您可以在其之上构建您自己的内容，或者用其他一些视图将其包围。例如，我的布局如下所示：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent" >

<RelativeLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="@dimen/default_view_padding"
        android:gravity="center"
        android:weightSum="4">

    <ImageButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/btnCounterBack"
            android:src="?attr/ic_previous"
            android:background="?android:attr/selectableItemBackground"
            android:contentDescription="@null"/>

    <TextView
            android:id="@+id/tvCounterLevel"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:text="@string/counter_categories"
            android:layout_gravity="center"
            android:paddingTop="@dimen/default_view_padding"
            android:paddingBottom="@dimen/default_view_padding"
            android:layout_alignParentTop="true"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true"
            android:gravity="center"/>

</RelativeLayout>

<LinearLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:gravity="center_vertical"
        android:background="?attr/dropShadowBackground"
        android:orientation="vertical" >

    <include layout="@android:layout/list_content" />

</LinearLayout>

于 2014-08-05T20:00:34.790 回答
0

I just needed to change my empty text TextView properties and did this

@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
    // Swap the new cursor in. (The framework will take care of closing the
    // old cursor once we return)
    mAdapter.swapCursor(cursor);
    if (cursor.getCount() == 0) {
        setEmptyText(getString(R.string.no_users));
        TextView tvEmpty = (TextView) getListView().getEmptyView();
        tvEmpty.setTextColor(getResources().getColor(R.color.blue));
    }
    // The list should now be shown.
    if (isResumed()) {
        setListShown(true);
    } else {
        setListShownNoAnimation(true);
    }
}

Do not forget that if you try initializing tvEmpty before you call setEmptyText("Empty"), you'll run into a NullPointerException

于 2013-04-29T04:53:42.980 回答
0

这段代码对我有用：

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View root = super.onCreateView(inflater, container, savedInstanceState);

    ((TextView)root.findViewById(0x00ff0001)).setText("some text");

    ListView list = (ListView) root.findViewById(android.R.id.list);
    list.setEmptyView(root.findViewById(0x00ff0001));

    return root;
}
于 2013-10-19T05:26:57.747 回答
0

有点晚了，但没有看到这个答案。

内部Fragment：

    @Override
    public View onCreateView(final LayoutInflater inflater, final ViewGroup container,
            final Bundle savedInstanceState) {
        final View view = inflater.inflate(R.layout.fragment_list_activity,
                container, false);  

        ListFragmentHelper.adaptView(view);

        return view;
    }

但请记住，fragment_list_activity.xml您需要设置 IDandroid:id="@id/loading"和 您android:id="@id/content"的android:id="@id/empty"视图！

于 2017-12-06T16:24:47.223 回答
-2

尝试删除setListShown(true);？

我有同样的问题，前段时间。如果您在ListFragment.

于 2012-07-13T13:22:37.703 回答