'Pages must fill the whole ViewPager2 (use match_parent) while i set it to match parent
I use viewPager2
in my app with custom adapter
and in layout i use my viewpager2
in linearLayout
.
i set the height
and width
of my viewpager2
to matchParent
, and i also set it to matchParent
in java code, and set attachToRoot
to false
, but i still get this error when i lunch my app.
how can i solve this problem?
this is my layout:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<View
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1" />
<androidx.viewpager2.widget.ViewPager2
android:id="@+id/vp_home"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.7"
android:clipToPadding="false"
android:paddingStart="20dp"
android:paddingEnd="20dp"/>
<View
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
this is my viewpager2 code:
mAdapter = new adapter_vp2_home(getActivity(), ls);
vp_home.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
vp_home.setOrientation(ViewPager2.ORIENTATION_HORIZONTAL);
vp_home.setAdapter(mAdapter);
and this is the log:
java.lang.IllegalStateException: Pages must fill the whole ViewPager2 (use match_parent)
at androidx.viewpager2.widget.ViewPager2$4.onChildViewAttachedToWindow(ViewPager2.java:270)
at androidx.recyclerview.widget.RecyclerView.dispatchChildAttached(RecyclerView.java:7713)
at androidx.recyclerview.widget.RecyclerView$5.addView(RecyclerView.java:857)
at androidx.recyclerview.widget.ChildHelper.addView(ChildHelper.java:107)
at androidx.recyclerview.widget.RecyclerView$LayoutManager.addViewInt(RecyclerView.java:8753)
at androidx.recyclerview.widget.RecyclerView$LayoutManager.addView(RecyclerView.java:8711)
at androidx.recyclerview.widget.RecyclerView$LayoutManager.addView(RecyclerView.java:8699)
at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1645)
at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1591)
at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:668)
at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4141)
at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3853)
at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4410)
at android.view.View.layout(View.java:20857)
at android.view.ViewGroup.layout(ViewGroup.java:6401)
at androidx.viewpager2.widget.ViewPager2.onLayout(ViewPager2.java:526)
at android.view.View.layout(View.java:20857)
at android.view.ViewGroup.layout(ViewGroup.java:6401)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1791)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1635)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1544)
at android.view.View.layout(View.java:20857)
at android.view.ViewGroup.layout(ViewGroup.java:6401)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:20857)
at android.view.ViewGroup.layout(ViewGroup.java:6401)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:20857)
at android.view.ViewGroup.layout(ViewGroup.java:6401)
at androidx.constraintlayout.widget.ConstraintLayout.onLayout(ConstraintLayout.java:1855)
at android.view.View.layout(View.java:20857)
at android.view.ViewGroup.layout(ViewGroup.java:6401)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:20857)
at android.view.ViewGroup.layout(ViewGroup.java:6401)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1791)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1635)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1544)
at android.view.View.layout(View.java:20857)
at android.view.ViewGroup.layout(ViewGroup.java:6401)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:20857)
at android.view.ViewGroup.layout(ViewGroup.java:6401)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1791)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1635)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1544)
at android.view.View.layout(View.java:20857)
at android.view.ViewGroup.layout(ViewGroup.java:6401)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at com.android.internal.policy.DecorView.onLayout(DecorView.java:945)
at android.view.View.layout(View.java:20857)
at android.view.ViewGroup.layout(ViewGroup.java:6401)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2961)
E/AndroidRuntime: at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2648)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1785)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7832)
at android.view.Choreographer$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$FrameDisplayEventReceiver.run(Choreographer.java:897)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6944)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)
Solution 1:[1]
i just solve this problem by match parent the custom layout of my custom viewpager2
Solution 2:[2]
Set LayoutParams for view:
view.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
Not vp_home.setLayoutParams, just delete it
Solution 3:[3]
For me, my viewholder layout should have had match_parent
only.
Solution 4:[4]
You can change wrap_content to match_parent in your custom layout XML file. it's working for me.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".fragment.PracticeFragment">
Solution 5:[5]
set width and height in your adapter item of ViewPager2 match_parent
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
Solution | Source |
---|---|
Solution 1 | Pooya Jannati Poor |
Solution 2 | Son Tran |
Solution 3 | sorry_I_wont |
Solution 4 | Ronik |
Solution 5 | Praful C |