StackOverflow2013

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plurals

PO
primarykey
Id
10662467
data
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0
AnswerCount
0
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CommentCount
6
CommunityOwnedDate
CreationDate
2012-05-19T05:05:43.423
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2012-05-19T05:05:43.423
LastEditDate
2017-05-23T12:01:20.473
LastEditorUserId
-1
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1141537
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10656543
PostTypeId
2
Score
1
ViewCount
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LastEditorDisplayName
text
Body
Use the following code to avoid a null bitmap: <hr> <pre><code>public class AndroidWebImage extends Activity { ImageView bmImage; LinearLayout view; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); view = (LinearLayout)findViewById(R.id.screen); bmImage = (ImageView)findViewById(R.id.image); view.setDrawingCacheEnabled(true); // this is the important code :) // Without it the view will have a dimension of 0,0 and the bitmap will be null view.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight()); view.buildDrawingCache(true); Bitmap b = Bitmap.createBitmap(view.getDrawingCache()); view.setDrawingCacheEnabled(false); // clear drawing cache bmImage.setImageBitmap(b); }; } </code></pre> <hr> Take a good look, you have to use: <pre><code> view.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight()); </code></pre> <hr> I used the following main.xml: <pre><code><?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:id="@+id/screen" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> <ImageView android:id="@+id/image" android:layout_width="fill_parent" android:layout_height="fill_parent" /> </LinearLayout> </code></pre> <hr> <h2>The outcome is:</h2> <img src="https://i.stack.imgur.com/xBMQQ.png" alt="enter image description here"> <a href="https://stackoverflow.com/questions/2339429/android-view-getdrawingcache-returns-null-only-null">Reference</a>
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Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POhow to capture the phone screen programmatically in android
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USCommunity
UserOwnerUserId
1. USImran Rana
plurals
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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. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
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 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId

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