Thanks for the beta on the bitmap,recycle(), it works! Before
processing the next bitmap I use this code to free up memory. I have a
class level Bitmap object.
Bitmap bm;// class level
if (bm!=null)
{
bm.recycle();
try
{
Thread.sleep(100);
}
catch(Exception e){}
bm=null;
System.gc();
try
{
Thread.sleep(100);
}
catch(Exception e){}
}
// create new bitmap and start again.
Thanks again, it works!
On Dec 17, 5:56 am, Mike Reed <[email protected]> wrote:
> Its a little raw, but if you know you're absolutely done using a given
> bitmap object, you can call bitmap.recycle(). This immediately frees
> up the memory associated with the bitmap, and marks it as "dead",
> meaning it cannot be referenced again (i.e. don't try to draw or get/
> set its pixels anymore).
>
> i.e.
>
> for (all of my big images) {
> Bitmap b = decode(...);
> canvas.drawBitmap(b, ...);
> b.recycle();
> // yikes, don't reference b again)
>
> }
>
> On Dec 15, 2008, at 9:04 PM, Mark K wrote:
>
> Is there a work around for this problem? Something I need to do
> differently perhaps? It seems like garbage collection is not occurring
> between successive bitmap decoding operations. Explicitly calling gc()
> does not seem to help. This is particularly a problem on the G1,
> because there is no way to reduce the camera resolution, all of the
> camera pictures are large. If I loop through a directory of pictures
> taken by the camera and use BitmapFactory.decodeFile(), I will get an
> out of memory error on the 2nd or 3rd iteration. Since I am only
> displaying/decoding one bitmap at a time I would hope that garbage
> collection would free up the memory between operations such that this
> does not occur. Any help would be greatly appreciated. Here's the code
> I use: This code runs a slide show of the images in the camera
> directory, it uses Handler.postDelayed() to render each picture. Is
> there anyway to tweak the code to get rid of the out of memory
> problem.
>
> public boolean slideShow()
> {
> String baseDir = "/sdcard/dcim/Camera/";
> long showTime = 1500;
>
> File dir = new File(baseDir);
> File[] pics = dir.listFiles();
> for ( int i=0; i<pics.length; i++ )
> {
> String pic=baseDir+pics[i].getName();
> handler.postDelayed(new ShowSlide(pic), i*showTime);
> }
> return true;
> }
>
> class ShowSlide extends Thread
> {
> String pc="";
> public ShowSlide(String pc)
> {
> this.pc=pc;
> }
> public void run()
> {
> System.out.println("Showing picture: "+pc.toString());
> displayPicture(pc);
> }
> }
>
> public boolean displayPicture(String filepath)
> {
> File file = new File(filepath);
> BitmapFactory bfac = new BitmapFactory();
> try
> {
> bm = bfac.decodeFile(filepath);// out of memory error occurs
> here!
> handler.post(new SetImage(iView, bm));
> }
> catch(Exception e)
> {
> Log.e(TAG,"display picture failed: "+filepath+" "+e.toString
> ());
> e.printStackTrace();
> return false;
> }
>
> return true;
> }
>
> class SetImage extends Thread
> {
> ImageView vv;
> Bitmap bb;
> public SetImage(ImageView vv, Bitmap bb)
> {
> this.vv=vv;
> this.bb=bb;
> }
> public void run()
> {
> vv.setImageBitmap(bb);
> }
> }
>
> On Dec 15, 2:48 pm, Romain Guy <[email protected]> wrote:
>
>
>
> >> I've run into this exact same problem a number of times myself. Not
> >> sure if its a bug or just a limitation of the jvm, can't seem to
> >> process more than a few large bitmaps without this occuring, this
> >> always seems to occur when decoding bitmaps from file.
>
> > Neither, you are just using too much memory.
>
> > --
> > Romain Guy
> > Android framework engineer
> > [email protected]
>
> > Note: please don't send private questions to me, as I don't have time
> > to provide private support. All such questions should be posted on
> > public forums, where I and others can see and answer them- Hide quoted text
> > -
>
> - Show quoted text -
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