根据此链接：ListFragment android developers
我想为列表设置自定义布局，但它会例外。
以下是代码：
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;
}
}
}}
我的自定义布局为R.layout.topoffers
logcat的：
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
答案 0 :(得分：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>
将它放在 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;
}
现在你可以正常使用：
setListShown(boolean shown);
setListShown(boolean shown, boolean animate);
setListShownNoAnimation(boolean shown);
来源：
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
答案 1 :(得分：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 ...
答案 2 :(得分：8)
只需用onCreateView方法中的CustomListView Layout替换原始ListView。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;
}
答案 3 :(得分：5)
答案 4 :(得分：2)
今天我遇到了同样的问题。在Google中查找解决方案，我在日本博客中发现了一篇帖子。 （http://blog.nkzn.net/entry/2012/06/14/160706）。
要使用setListShown(boolean)，您必须先进行布局：
<?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>
现在在你的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;
}
}
在他的父母中设置这2个ID数字setListShown（boolean）将毫无问题地工作。
答案 5 :(得分：1)
另一个对我有用的解决方案就是放这行
<include layout="@android:layout/list_content" />
而不是列表视图。
您可以在其上构建自己的内容或使用其他一些视图将其包围。例如，以下是我的布局：
<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>
答案 6 :(得分：0)
我只需要更改空文TextView属性并执行此操作
@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);
}
}
请注意，如果您在致电tvEmpty之前尝试初始化setEmptyText("Empty")，则会遇到NullPointerException
答案 7 :(得分：0)
此代码对我有用：
@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;
}
答案 8 :(得分：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您需要为自己的观点设置ID android:id="@id/loading"，android:id="@id/content"和android:id="@id/empty"！
答案 9 :(得分：-2)
尝试删除setListShown(true);？
前段时间我遇到了同样的问题。
如果您在ListFragment中有自定义布局，则无法使用它。