Android exception - External allocation too large for this process

Question

I have following code:

private Bitmap  mBitmap;
private Canvas  mCanvas;
private Path    mPath;
private Paint   mBitmapPaint;


mBitmap = Bitmap.createBitmap(480, 800, Bitmap.Config.ARGB_8888);
mCanvas = new Canvas(mBitmap);

mPath = new Path();
mBitmapPaint = new Paint(Paint.DITHER_FLAG);

protected void onDraw(Canvas canvas) {

canvas.drawBitmap(mBitmap, 0, 0, mBitmapPaint);
canvas.drawPath(mPath, mRealPaint);
}

When i run it, it runs fine for few pages. Then after few pictures are done it force closes giving following exception:

E/GraphicsJNI(493): VM won't let us allocate 921600 bytes
D/AndroidRuntime(493): Shutting down VM
W/dalvikvm(493): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
E/AndroidRuntime(493): FATAL EXCEPTION: main
E/AndroidRuntime(493): java.lang.OutOfMemoryError: bitmap size exceeds VM budget

I read many posts on this topic. Updated Large heap to true, but it is still not working. Can someone please help me tell what am i doing wrong here?

More errors:

W/webcore(541): Can't get the viewWidth after the first layout
D/webviewglue(541): nativeDestroy view: 0x40a7b8
I/Ads(541): onReceiveAd()
D/dalvikvm(541): GC_EXTERNAL_ALLOC freed 1943 objects / 219448 bytes in 227ms
D/dalvikvm(541): GC_EXTERNAL_ALLOC freed 707 objects / 100576 bytes in 159ms
E/ActivityThread(541): Failed to find provider info for com.google.plus.platform

try it on device and add flag largeHeap=true in your mainefest file — Yogesh Tatwal, Jun 29 '13 at 19:02
I do not think your issue is related to the snippet you provided — Blackbelt, Jun 29 '13 at 19:11
@blackbelt - I added some more errors at bottom do you think it is because of those? — NoviceMe, Jun 29 '13 at 19:14
try to following link http://stackoverflow.com/questions/477572/strange-out-of-memory-issue-while-loading-an-image-to-a-bitmap-object — Yogesh Tatwal, Jun 29 '13 at 19:15
@YogeshTatwal - I updated this code: mBitmap = Bitmap.createBitmap(480, 800, Bitmap.Config.ARGB_8888); Changed 480, 800 to 320, 480. Is that what you meant by reducing size of bitmap? — NoviceMe, Jun 29 '13 at 19:26
@YogeshTatwal - What basically it does? Can i reduce it more? It does not show much changes in pictures though. — NoviceMe, Jun 29 '13 at 19:30
Yes you can reduce it because it is pixel exactly it reduce the size of image — Yogesh Tatwal, Jun 29 '13 at 19:34
@YogeshTatwal - Link you provided above has a comment to never use Bitmap.createBitmap(480, 800, Bitmap.Config.ARGB_8888). So should i change that too? What should that be replaced with? — NoviceMe, Jun 29 '13 at 19:37
what do you mean by "When i run it, it runs fine for few pages. Then after few pictures are done... "?? Are you sure you are not leaking references or maybe you should recycle them? — marcinj, Jun 29 '13 at 19:38
@marcin_j - This is connecting dot app. So once on page 1 all dots are connected it moves to page 2 and so on. I am new to android development still trying to understand where i am going wrong. All bitmap code is posted above. So do i need to recycle it at the end? — NoviceMe, Jun 29 '13 at 19:40
@YogeshTatwal - What will be scrBitmap in this?? Bitmap.createScaledBitmap(srcBitmap, width, height, false) — NoviceMe, Jun 29 '13 at 19:45
@YogeshTatwal - By recycle() at the end you mean after canvas.drawBitmap ? — NoviceMe, Jun 29 '13 at 19:46
Yes you can call it even if you want you can call it in start for eg:-bitmap.recycle(); bitmap=null; than use bitmap — Yogesh Tatwal, Jun 29 '13 at 19:49
@YogeshTatwal - Last question Yogesh, can you please put in the answer how i can use: Bitmap.createScaledBitmap(srcBitmap, width, height, false) so that i can mark it as answer? Also can you please tell me what will be srcBitmap in this case? As i dont have any above? — NoviceMe, Jun 29 '13 at 19:56

score 2 · Accepted Answer · answered Jun 29 '13 at 20:01

2

try the following code :-

public static Bitmap createScaledBitmap(Bitmap src, int dstWidth,
        int dstHeight, boolean filter) {
    Matrix m;
    synchronized (Bitmap.class) {
        // small pool of just 1 matrix
        m = sScaleMatrix;
        sScaleMatrix = null;
    }

    if (m == null) {
        m = new Matrix();
    }

    final int width = src.getWidth();
    final int height = src.getHeight();
    final float sx = dstWidth  / (float)width;
    final float sy = dstHeight / (float)height;
    m.setScale(sx, sy);
    Bitmap b = Bitmap.createBitmap(src, 0, 0, width, height, m, filter);

    synchronized (Bitmap.class) {
        // do we need to check for null? why not just assign everytime?
        if (sScaleMatrix == null) {
            sScaleMatrix = m;
        }
    }

    return b;
}

src will be your bitmap

answered Jun 29 '13 at 20:01

Yogesh Tatwal

2,722
20
43

I still did not get it. What is Bitman src?? In my code i just have createBitmap. I do not have any src, so what should i pass in? – NoviceMe Jun 29 '13 at 20:04
InputStream is = getAssets().open(lol.get(zpositions)); Bitmap bm = BitmapFactory.decodeStream(is); Bitmap mBitmap = Bitmap.createScaledBitmap(bm,width,hight, false); – Yogesh Tatwal Jun 29 '13 at 20:07
have you got the solution ?? – Yogesh Tatwal Jun 29 '13 at 20:12

Android exception - External allocation too large for this process

1 Answers1

Linked