Is this a bug or is there a property that needs setting ? On Fri, Jul 22, 2011 at 7:27 AM, Simon Platten <[email protected] > wrote:
> Has anyone else encountered this problem? > > On Thu, Jul 21, 2011 at 7:54 PM, Simon Platten < > [email protected]> wrote: > >> I have a listview with each item defined as: >> >> <?xml version="1.0" encoding="utf-8"?> >> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android >> " >> android:layout_width="fill_parent" >> >> android:layout_height="?android:attr/listPreferredItemHeight" >> android:padding="10dp"> >> <LinearLayout android:id="@+id/llHeader" >> android:background="@color/blue" >> android:orientation="vertical" >> android:layout_alignParentTop="true" >> android:layout_width="fill_parent" >> android:layout_height="fill_parent" > >> <CheckBox android:id="@+id/chkUse" >> android:text="File-name" >> android:textColor="@color/yellow" >> android:textStyle="bold" >> android:layout_width="fill_parent" >> android:layout_height="wrap_content" >> android:layout_gravity="left" /> >> </LinearLayout> >> <ImageView android:id="@+id/ivthumbNail" >> android:src="@drawable/placeholder" >> android:layout_centerHorizontal="true" >> android:layout_below="@+id/llHeader" >> android:layout_width="fill_parent" >> android:layout_height="fill_parent" /> >> <ImageButton android:id="@+id/btnCCW" >> android:src="@drawable/ccw_rotate_btn" >> android:layout_alignLeft="@+id/llHeader" >> android:layout_below="@+id/llHeader" >> android:layout_width="48dip" >> android:layout_height="48dip" /> >> <ImageButton android:id="@+id/btnCW" >> android:src="@drawable/cw_rotate_btn" >> android:layout_alignRight="@+id/llHeader" >> android:layout_below="@+id/llHeader" >> android:layout_width="48dip" >> android:layout_height="48dip" /> >> </RelativeLayout> >> >> >> This gives a title / checkbox, under this is an imageview with a button >> either side of it. With the buttons I can rotate the image clockwise or >> counter clockwise by 90 degrees, the routine that performs the rotation and >> scaling of the images: >> >> public Bitmap scaleAndRotateImage(boolean blnShow) { >> try{ >> BitmapFactory.Options bfo = new BitmapFactory.Options(); >> bfo.inSampleSize = 4; >> Bitmap bmpData = BitmapFactory.decodeFile(m_strFilename, >> bfo); >> >> if ( m_intOriginalWidth == 0 && m_intOriginalHeight == 0 ) { >> m_intOriginalWidth = bmpData.getWidth(); >> m_intOriginalHeight = bmpData.getHeight(); >> int intScaledWidth = clsWallpaper.m_intScrWidth; >> float fltAspectRatio = (float)bmpData.getHeight() / >> (float)bmpData.getWidth(); >> int intScaledHeight = (int)((float)intScaledWidth * >> fltAspectRatio); >> m_fltScaleWidth = ((float)intScaledWidth) / >> ((float)m_intOriginalWidth); >> m_fltScaleHeight = ((float)intScaledHeight) / >> ((float)m_intOriginalHeight); >> } >> // Apply the scale to the matrix >> Matrix mtx = new Matrix(); >> mtx.postScale(m_fltScaleWidth, m_fltScaleHeight); >> // Apply the rotation angle to the matrix >> mtx.postRotate(m_intTotalAngle); >> // Get the scaled and maybe rotated version of the bitmap >> Bitmap bmpScaled = Bitmap.createBitmap(bmpData, >> 0, 0, >> m_intOriginalWidth, >> m_intOriginalHeight, >> mtx, true); >> if ( blnShow == true && bmpScaled != null ) { >> m_drwThumbnail = new BitmapDrawable(bmpScaled); >> Activity a = (Activity)m_ivThumbnail.getContext(); >> a.runOnUiThread(updateThumbnail); >> } >> return bmpScaled; >> } catch( Exception ex ) { >> Log.e( TAG, "rotateThumbnail", ex ); >> } >> return null; >> } >> >> The strange this is when the image is rotated the scaled version is >> smaller than it is supposed to be, if I scroll the listview so the item goes >> out of view then scroll it back into view the item comes back with the image >> of the correct size. Is they're anything I can do about this? >> -- >> Regards, >> Sy >> >> > > > -- > Regards, > Sy > > -- Regards, Sy -- 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
