I don't think your layout code makes sense, particularly the height specification.
You have this for the LinearLayout: android:layout_height="wrap_content" This says '*Look at my children to figure out the height*'. Then you have this for the ImageView: android:layout_height="match_parent" This says *'Look at my parent (aka LinearLayout) to figure out the height*'. It is like the parent is saying 'go talk to the child' and the child is saying 'go talk to the parent' in an endless loop. On Monday, September 17, 2012 9:46:57 AM UTC-5, yu wrote: > > Hi all, > > I use below codes to generate the bitmap of a view: > > view.measure(MeasureSpec.makeMeasureSpec(0, > MeasureSpec.UNSPECIFIED), > MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); > view.layout(0, 0, view.getMeasuredWidth(), > view.getMeasuredHeight()); > Bitmap bitmap = Bitmap.createBitmap(view.getWidth(), > view.getHeight(), > Bitmap.Config.ARGB_8888); > final Canvas canvas = new Canvas(bitmap); > view.draw(canvas); > > However, when the view really displays, it looks quite different with the > bitmap that I get. Please see below two snapshots. > *Below is the bitmap that I generated:* > > > <https://lh5.googleusercontent.com/-7tOJkO961Es/UFc3XjIvrFI/AAAAAAAAAGU/vXNeEPF-xyY/s1600/bitmap.png> > > > *Below is the view's real display:* > > > <https://lh5.googleusercontent.com/-x76-haIiBOI/UFc3gTBYTnI/AAAAAAAAAGc/b5dkPTrLlNk/s1600/view.png> > > > *Below is the layout of this view:* > <?xml version="1.0" encoding="utf-8"?> > <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"; > android:layout_width="wrap_content" > android:layout_height="wrap_content" > android:orientation="vertical"> > <Button android:layout_width="match_parent" > android:layout_height="wrap_content" > android:text="Test" > android:id="@+id/btnTest"/> > <ImageView android:layout_width="match_parent" > android:layout_height="match_parent" > android:id="@+id/ivTest"/> > </LinearLayout> > > However, the above method is searched and got from stackoverflow. So I > assume it should work. Can someone tell me why the bitmap that I get is > different with the real display and how to resolve it? Thanks in advance. > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
