freeMemory() is only really accurate immediately after a GC cycle. You can call gc() to force a GC cycle, but it's a little expensive, and many platforms (don't know about Android) ignore the call since it's so often abused.
Better for you to find out the partition size (don't know how you do this on Android but it may be a parameter you specify in your app's config parms) and then subtract off what you know to be your "overhead". On Jul 24, 1:03 pm, ReyLith <jesus...@gmail.com> wrote: > First of all thank you very much everyone for your help. > > I continue with a problem. I use Runtime.getRuntime().freeMemory() for > obtain the free memory and compare it with the real Bitmap memory. > Sometimes I get a free memory less than that occupied by the image. > However, if I remove the restriction on the size of the image, I can > work with it without any problem. Am I using an incorrect function to > get the free memory?. Should I use another function? > > Thank you very much in advance. > > On 23 jul, 20:40, DanH <danhi...@ieee.org> wrote: > > > Close as I can tell, you use a BitmapFactory.Options and put a > > BitmapConfig constant in that that specifies the type of internal > > representation you want. If you use ARGB_8888 then each pixel will be > > 64 bits. ARGB_4444 -- 32 bits, RGB_565 -- 16 bits. > > > On Jul 23, 12:21 pm, ReyLith <jesus...@gmail.com> wrote: > > > > Thanks Nathan. > > > > With this option I can obtain the image characteristics but I don't > > > know the option that indicates me the depth of the pixel. Width and > > > Height are in outWidth and outHeight but I don't know where is the > > > depth. I thought use the getRowBytes() of Bitmap and product it with > > > getHeight() of Bitmap, but I don't know if there is correct. > > > > On 23 jul, 18:52, Nathan <nathan.d.mel...@gmail.com> wrote: > > > > > If you can get the width and height for the image without completely > > > > opening it, then use the width*height*depth. > > > > > You probably have to use this option: > > > > >http://developer.android.com/intl/de/reference/android/graphics/Bitma... > > > > > Nathan > > > > > On Jul 23, 9:30 am, ReyLith <jesus...@gmail.com> wrote: > > > > > > So, how can I obtain the depth for know if I can work with the image? > > > > > > On 23 jul, 18:18, DanH <danhi...@ieee.org> wrote: > > > > > > > The size of an image file depends greatly on the compression > > > > > > techniques used to create it. Virtually all image formats involve > > > > > > some sort of compression such that the total number of bits in the > > > > > > file is considerably less than the (width * height * depth) number > > > > > > that represents the raw image. > > > > > > > On Jul 23, 7:27 am, ReyLith <jesus...@gmail.com> wrote: > > > > > > > > Hi again, > > > > > > > > I'm trying to put a message when the image is so big. For this I > > > > > > > think > > > > > > > to obtain the size of the file and compare it with the free memory > > > > > > > Runtime.getRuntime().getFreeMemory()). It works well but I have a > > > > > > > new > > > > > > > problem. The application show an error message with some images > > > > > > > because they are so big and the application dont't detect the > > > > > > > problem. > > > > > > > I research in other posts and the problem is that the file size is > > > > > > > different from the size of the image in memory. To get the size > > > > > > > of the > > > > > > > image in memory I use the product getHeight () * getRowBytes () > > > > > > > of the > > > > > > > Bitmap class, but with some images not previously had problems, I > > > > > > > get > > > > > > > very large sizes, so often I get the message erroneously. > > > > > > > > Does anyone know how could solve this problem? > > > > > > > > Thank you very much 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 android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
