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POfindViewById returns null in custom view
primarykey
Id
6070091
data
AcceptedAnswerId
6070296
AnswerCount
2
ClosedDate
CommentCount
3
CommunityOwnedDate
CreationDate
2011-05-20T09:42:45.507
FavoriteCount
1
LastActivityDate
2011-05-20T12:16:13.930
LastEditDate
2011-05-20T09:51:08.740
LastEditorUserId
410487
OwnerUserId
410487
ParentId
0
PostTypeId
1
Score
0
ViewCount
3543
LastEditorDisplayName
text
Body
Ok, I've read around that a custom view must have a constructor with AttributeSet in order for findViewById() to work. I've not seen any actual implementation yet. Below are my codes: My custom view that extends HorizontalScrollView: <pre><code>public AnimatedMenuBar(Context context) { // TODO Auto-generated constructor stub this(context, null); } public AnimatedMenuBar(Context context, AttributeSet attrs) { // TODO Auto-generated constructor stub this(context, attrs, 0); } public AnimatedMenuBar(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); // TODO Auto-generated constructor stub this.context = context; inflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); inflater.inflate(R.layout.main, this); this.setHorizontalScrollBarEnabled(false); } </code></pre> From my main activity: <pre><code>@Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.testing); AnimatedMenuBar animatedMenuBar = (AnimatedMenuBar)findViewById(R.id.animatedMenuBar); } </code></pre> testing.xml <pre><code><?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <com.pt.task.custommenubar.AnimatedMenuBar android:id="@+id/animatedMenuBar" android:layout_width="fill_parent" android:layout_height="wrap_content" /> </LinearLayout> </code></pre> main.xml <pre><code><?xml version="1.0" encoding="utf-8"?> <merge xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" > <LinearLayout android:id="@+id/horizontalLayout" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/dummyTextView" android:padding="5dip"/> </LinearLayout> </merge> </code></pre> animatedMenuBar is always null, is there any thing that I missed? Thank you very much!
Tags
<android>
Title
findViewById returns null in custom view
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USAlvin Then
UserOwnerUserId
1. USAlvin Then
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POfindViewById returns null in custom view
 UserUserId
 USMGM
 VoteTypeVoteTypeId
 VTFavorite
CommentsPostId

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