android.content.res.Resources$NotFoundException:找不到资源 ID #0xffffffff [英] android.content.res.Resources$NotFoundException: Unable to find resource ID #0xffffffff
问题描述
我讨厌发布代码，并问为什么它不起作用，但我现在不知所措.我尝试在下面运行以下类，但我在 logcat 中遇到了一个我无法解释的异常.即使是谷歌搜索也很少产生结果.也许我只是不了解生态系统，但异常信息很少.我得到的例外如下:
I hate posting code, and asking why it doesn't work, but I'm at a loss right now. I've tried to run the following class below, and I get an exception in logcat which I can't explain. Even a google search yields little results. Maybe I just don't understand the ecosystem, but the exception has little information. The exception I'm getting is below:
03-06 21:50:43.031: E/AndroidRuntime(1013): FATAL EXCEPTION: main
03-06 21:50:43.031: E/AndroidRuntime(1013): android.content.res.Resources$NotFoundException: Unable to find resource ID #0xffffffff
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.content.res.Resources.getResourceName(Resources.java:1659)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:903)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:461)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.support.v4.view.ViewPager.populate(ViewPager.java:1012)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.support.v4.view.ViewPager.populate(ViewPager.java:881)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1366)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.View.measure(View.java:15513)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4827)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.View.measure(View.java:15513)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.widget.LinearLayout.measureVertical(LinearLayout.java:847)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.View.measure(View.java:15513)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4827)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
03-06 21:50:43.031: E/AndroidRuntime(1013): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2176)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.View.measure(View.java:15513)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1874)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1089)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1265)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:989)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4351)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.Choreographer.doCallbacks(Choreographer.java:562)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.Choreographer.doFrame(Choreographer.java:532)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.os.Handler.handleCallback(Handler.java:725)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.os.Handler.dispatchMessage(Handler.java:92)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.os.Looper.loop(Looper.java:137)
03-06 21:50:43.031: E/AndroidRuntime(1013): at android.app.ActivityThread.main(ActivityThread.java:5039)
03-06 21:50:43.031: E/AndroidRuntime(1013): at java.lang.reflect.Method.invokeNative(Native Method)
03-06 21:50:43.031: E/AndroidRuntime(1013): at java.lang.reflect.Method.invoke(Method.java:511)
03-06 21:50:43.031: E/AndroidRuntime(1013): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
03-06 21:50:43.031: E/AndroidRuntime(1013): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
03-06 21:50:43.031: E/AndroidRuntime(1013): at dalvik.system.NativeStart.main(Native Method)
03-06 21:55:44.231: E/Trace(1033): error opening trace file: No such file or directory (2)
我尝试将 ViewPager 移动到顶级内容(即 setContent(pager))，但这似乎不起作用.欢迎任何意见.代码如下:
I tried moving the ViewPager to the top level content (i.e. setContent( pager )) but that didn't seem to work. Any input is welcomed. The code is below:
EDIT*我简化了示例，但仍然遇到同样的问题.
EDIT* I Simplified the example, and I still get the same problem.
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.LinearLayout;
import android.widget.TextView;
public class AskQuestionActivity extends FragmentActivity
{
private static LayoutParams MATCH_PARENT = new LayoutParams( LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT );
@Override
protected void onCreate( Bundle savedInstanceState )
{
super.onCreate( savedInstanceState );
ViewPager pager = new ViewPager( this );
pager.setAdapter( new FragmentPagerAdapter( getSupportFragmentManager() )
{
@Override
public int getCount()
{
return 1;
}
@Override
public Fragment getItem( int arg0 )
{
return new BoardFragment();
}
} );
setContentView( pager );
}
public static class BoardFragment extends Fragment
{
@Override
public View onCreateView( LayoutInflater inflater,
ViewGroup container,
Bundle savedInstanceState )
{
TextView textView = new TextView( getActivity() );
textView.setText( "Board" );
textView.setGravity( Gravity.CENTER );
LinearLayout layout = new LinearLayout( getActivity() );
layout.setLayoutParams( MATCH_PARENT );
layout.addView( textView );
return layout;
}
}
}
欢迎任何帮助.
推荐答案
所以我会发布我认为解决问题的方法.在我上面的代码中添加一行后，给 ViewPager 一个随机"ID；它设法解决了我的问题.
So I'll post what I think is the solution to my problem. After adding a single line to my above code giving the ViewPager a "random" ID; it managed to fix my problem.
起初我认为设置自己的 ID 是不好的做法，但显然有合法的方法可以做到这一点.即通过创建一个 ids.xml 文件并让 Android 生态系统为您生成一个 ID.我建议查看这些 SO 帖子以获取更多信息 - 这里 和这里.
At first I was convinced that setting your own ID is bad practice, but apparently there are legitimate ways of doing this. Namely by creating an ids.xml file and letting the Android ecosystem generate an ID for you. I recommend checking out these SO posts for more information - here and here.
否则，我建议只为您的布局创建一个 XML 文件并在您的 Activity 中获取 ViewPager(而不是以编程方式实例化它)，但最终这一切都取决于关于你想要完成的事情.
Otherwise, I would recommend just creating an XML file for your layout and getting the ViewPager in your Activity (instead of programmatically instantiating it), but ultimately it all depends on what you're trying to accomplish.
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