I'm getting an error in the title. Application I also have a mixed structure and use a few nested structures.
There is a structure like " CategoryFragment -> ViewPager -> RecyclerView inside CategoryDetailsFragment -> ViewPager-> HeadlinePagerFragment"
when changed to CategoryFragment then return to back will be this error.
- CategoryFragment
valI'm getting an error in the title. Application I also have a mixed structure and use a few nested structures.
There is a structure like " CategoryFragment -> ViewPager -> RecyclerView inside CategoryDetailsFragment -> ViewPager-> HeadlinePagerFragment"
when changed to CategoryFragment then return to back will be this error.
- CategoryFragment
val adapter = CategoriesPagerAdapter(activity?.supportFragmentManager!!,list as List<MutableMap<String,String>>) vp_categories_pager.adapter = adapter tl_categories.setupWithViewPager(vp_categories_pager) - CategoryDetailsFragment This class use recyclerview and usage inside of childview viewpager.
rv_category_details.adapter = ContentAdapter( context!!,this@CategoryDetailsFragment(usage as fragment), this@CategoryDetailsFragment) -> Adapter
vp_headline.adapter =HeadlineAdapter( fragment?.childFragmentManager!!, items, itemClickListener) tl_headline_indicator.setupWithViewPager(vp_headline) - HeadlineAdapter
class HeadlineAdapter( fragment: FragmentManager, var list:MutableList<MutableMap<*,*>>, val itemclickListener:ContentAdapter.Itemclicklistener) :FragmentPagerAdapter(fragment){ override fun getItem(position: Int): Fragment = HeadlinePagerFragment(PutData(mutableMapOf( 'm' to list[position], 'l' to itemclickListener ))) override fun getCount(): Int = list.size override fun getItemPosition(`object`: Any): Int { return PagerAdapter.POSITION_NONE } } Return this error
No view found for id 0x7f0901de (com.bursadabugun.android:id/vp_headline) for fragment HeadlinePagerFragment{17872d5 (85c9643d-c164-417e-a428-7105105970a1) id=0x7f0901de android:switcher:2131296734:0} at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:875) at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1238) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:1303) at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManagerImpl.java:2656) at androidx.fragment.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManagerImpl.java:2610) at androidx.fragment.app.Fragment.performActivityCreated(Fragment.java:2619) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:904) at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1238) at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:434) at androidx.fragment.app.FragmentManagerImpl.executeOps(FragmentManagerImpl.java:2076) at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManagerImpl.java:1866) at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManagerImpl.java:1821) at androidx.fragment.app.FragmentManagerImpl.execSingleAction(FragmentManagerImpl.java:1696) at androidx.fragment.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:299) at androidx.fragment.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:230) at androidx.viewpager.widget.ViewPager.populate(ViewPager.java:1244) at androidx.viewpager.widget.ViewPager.populate(ViewPager.java:1092) at androidx.viewpager.widget.ViewPager.onMeasure(ViewPager.java:1622) at android.view.View.measure(View.java:22094) at androidx.constraintlayout.widget.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:1227) at androidx.constraintlayout.widget.ConstraintLayout.onMeasure(ConstraintLayout.java:1572) at android.view.View.measure(View.java:22094) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6613) at android.widget.FrameLayout.onMeasure(FrameLayout.java:185) at android.view.View.measure(View.java:22094) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6613) at android.widget.FrameLayout.onMeasure(FrameLayout.java:185) at android.view.View.measure(View.java:22094) at androidx.constraintlayout.widget.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:1227) at androidx.constraintlayout.widget.ConstraintLayout.onMeasure(ConstraintLayout.java:1572) at android.view.View.measure(View.java:22094) at androidx.drawerlayout.widget.DrawerLayout.onMeasure(DrawerLayout.java:1119) at android.view.View.measure(View.java:22094) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6613) at android.widget.FrameLayout.onMeasure(FrameLayout.java:185) at androidx.appcompat.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:143) at android.view.View.measure(View.java:22094) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6613) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514) at android.widget.LinearLayout.measureVertical(LinearLayout.java:806) at android.widget.LinearLayout.onMeasure(LinearLayout.java:685) at android.view.View.measure(View.java:22094) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6613) at android.widget.FrameLayout.onMeasure(FrameLayout.java:185) at android.view.View.measure(View.java:22094) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6613) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514) at android.widget.LinearLayout.measureVertical(LinearLayout.java:806) E/AndroidRuntime: at android.widget.LinearLayout.onMeasure(LinearLayout.java:685) at android.view.View.measure(View.java:22094) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6613) at android.widget.FrameLayout.onMeasure(FrameLayout.java:185) at com.android.internal.policy.DecorView.onMeasure(DecorView.java:724) at android.view.View.measure(View.java:22094) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2483) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1549) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1806) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1432) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6826) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911) at android.view.Choreographer.doCallbacks(Choreographer.java:723) at android.view.Choreographer.doFrame(Choreographer.java:658) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897) at android.os.Handler.handleCallback(Handler.java:790) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6543) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:440) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:810) 
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