我在ViewPager中有一个ViewPager,我得到了这个异常
09-07 18:30:26.392: ERROR/AndroidRuntime(841): FATAL EXCEPTION: main
java.lang.IllegalStateException: Recursive entry to executePendingTransactions
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1331)
at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:422)
at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:86)
at android.support.v4.view.ViewPager.populate(ViewPager.java:453)
at android.support.v4.view.ViewPager.onAttachedToWindow(ViewPager.java:563)
at android.view.View.dispatchAttachedToWindow(View.java:7974)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:1857)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:1862)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:1862)
at android.view.ViewGroup.addViewInner(ViewGroup.java:2968)
at android.view.ViewGroup.addView(ViewGroup.java:2824)
at android.support.v4.view.ViewPager.addView(ViewPager.java:537)
at android.view.ViewGroup.addView(ViewGroup.java:2781)
at android.view.ViewGroup.addView(ViewGroup.java:2761)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:848)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1041)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:616)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1359)
at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:422)
at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:86)
at android.support.v4.view.ViewPager.populate(ViewPager.java:453)
at android.support.v4.view.ViewPager.onAttachedToWindow(ViewPager.java:563)
at android.view.View.dispatchAttachedToWindow(View.java:7974)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:1857)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:1862)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:1862)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:1862)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:1862)
at android.view.ViewRoot.performTraversals(ViewRoot.java:726)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1944)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:126)
at android.app.ActivityThread.main(ActivityThread.java:3997)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:491)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
at dalvik.system.NativeStart.main(Native Method)
我不确定这个错误来自哪里,我不太了解FragmentManager。我是否需要刷新交易或类似的事情?或者ViewPager中的viewPager是不可能的?是的,我知道有其他方法可以做到这一点,但我想要快速和滚动免费。我也想了解它是如何运作的。
答案 0 :(得分:101)
新版Support Library v4(或Android 4.2,of course)解决此问题非常简单。为此,只需执行自定义FragmentPagerAdapter的构造函数,如下所示:
public CustomFragmentPagerAdapter(android.support.v4.app.Fragment fragment)
{
super(fragment.getChildFragmentManager());
// write your code here
}
这项工作是因为新的Android版本批准使用嵌套片段
答案 1 :(得分:27)
最近我遇到了同样的问题,经过一番调查后,我惊讶地发现你根本无法将一个片段嵌入到另一个片段中。在这里,您将在另一个中执行一个片段事务。这是不允许的。
支持库v4的新版本(当然还是Android 4.2)解决了这个问题。请参阅下面的答案。
<强>更新强>
getChildFragmentManager ()
已添加以解决上述问题。
答案 2 :(得分:7)
参考这个。 Display fragment viewpager within a fragment
可以这样做,但是必须通过Asysnc完成,因为你必须先让第一个片段事务完成。您可以在片段中包含片段。我知道,因为我有几个项目在做。