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plurals

POViewPager + PagerAdapter shows blank pages after first two items
primarykey
Id
11659493
data
AcceptedAnswerId
11729189
AnswerCount
1
ClosedDate
CommentCount
4
CommunityOwnedDate
CreationDate
2012-07-25T22:16:13.843
FavoriteCount
6
LastActivityDate
2018-07-12T14:25:28.707
LastEditDate
2012-07-30T20:37:01.723
LastEditorUserId
783100
OwnerUserId
783100
ParentId
0
PostTypeId
1
Score
5
ViewCount
7247
LastEditorDisplayName
text
Body
What's happening: The first two ViewPager pages loaded nicely (ViewPager automatically loads +-1 from current page). When you scroll past these the next pages aren't showing up. GIF demo of the problem below. Debug info: The pages are being instantiated (see code below) and are successfully added to the ViewPager <code>ArrayList<ItemInfo>mItems</code> (confirmed via Log messages). I recompiled the <code>android.support.v4</code> library with debug=true set (<code>mmm frameworks/support/v4/</code> in aosp) and it shows everything working perfectly EXCEPT: The onLayout and onMeasure methods in ViewPager stop being called after the first two views are loaded. This means the other pages are black because they were never measured&arranged as they should have been. I tried adding different requestLayout() calls at different points to force a layout tree refresh to no avail. Background: I have a ViewPager instantiated via inflater.inflate and found via view.findViewById(R.layouy.myid). It's directly replacing an old Gallery view, and for testing purposes the PagerAdapter instantiateItem(collection, position) simply does this: <pre><code>@Override public Object instantiateItem(View collection, final int position) { final TextView tv = new TextView(collection.getContext()); tv.setText("Looking at page " + position); tv.setTextColor(Color.WHITE); tv.setBackgroundColor(Color.rgb( (int)(Math.random()*100), (int)(Math.random()*100), (int)(Math.random()*100))); tv.setTextSize(22); ((ViewPager) collection).addView(tv); return tv; } </code></pre> Any ideas? It looks to me like some mystery setting in PageView's parents are somehow disabling onLayout PageView
Tags
<android><android-viewpager>
Title
ViewPager + PagerAdapter shows blank pages after first two items
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USTim O'Brien
UserOwnerUserId
1. USTim O'Brien
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. PL
 singulars
 LinkTypeLinkTypeId
 LTLinked
2. PL
 singulars
 LinkTypeLinkTypeId
 LTLinked
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POViewPager + PagerAdapter shows blank pages after first two items
 UserUserId
 USTim O'Brien
 VoteTypeVoteTypeId
 VTFavorite
2. VO
 singulars
 PostPostId
 POViewPager + PagerAdapter shows blank pages after first two items
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
3. VO
 singulars
 PostPostId
 POViewPager + PagerAdapter shows blank pages after first two items
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId

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