so my solution is to merge the images into one image at the beginning and store this image in the memory. when the onDraw is called, the canvas can only draw this merged image.
however, i can't find out how to merge images. On Sep 3, 3:00 pm, OiuNt <[email protected]> wrote: > Hi everyone, > in my application, i want merge serveral images dynamically > accroding to the user's selection, and the merged image will be > scrolled and zoomed. > i extends View to OverlayImageView, which has the properties > background Bitmap, layers Bitmap and Matrix. in the onDraw event, i > draw the background Bitmap and layers bitmap sequently by the method > canvas.canvas.drawBitmap(image, imgMatrix, null). > however, if all the bitmaps are stored in memery, it leads to the > Out Of Memory problem. so, i have to read the image in the onDraw > event by the method BitmapFactory.decodeResource, but it's slow to > response user's operation, for example, the scroll and zoom the image > will leads to the onDraw event. > so, does anyone have some good idears ? thanks!! > > OiuNt --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
