Throwing OutOfMemoryError on create Bitmap

Question

I have a custom Android device with an LCD screen. It can draw bitmaps. I prepare them from Android views.

private Bitmap loadBitmapFromView() {
    if ((mView.getVisibility() != VISIBLE) ||
            (mView.getMeasuredWidth() <= 0) ||
            (mView.getMeasuredHeight() <= 0)) return null;
    Bitmap b;
    if ((mView instanceof ImageView) && !(mView instanceof ImageButton)) {
        BitmapDrawable drawable = ((BitmapDrawable) ((ImageView) mView).getDrawable());
        if (drawable == null) return null;
        b = Bitmap.createScaledBitmap(drawable.getBitmap().copy(drawable.getBitmap().getConfig(), true),
                mView.getMeasuredWidth(), mView.getMeasuredHeight(), false);
    } else {
        b = Bitmap.createBitmap(mView.getMeasuredWidth(), mView.getMeasuredHeight(), ARGB_8888);
    }
    replaceColor(b, ColorChannel.ALPHA, 0, mBackgroundColor);
    Canvas c = new Canvas(b);
    mView.layout(mLocation.x - mParentLocation.x, mLocation.y - mParentLocation.y,
            mLocation.x - mParentLocation.x + mView.getMeasuredWidth(),
            mLocation.y - mParentLocation.y + mView.getMeasuredHeight());
    mView.draw(c);
    return b;
}

ARGB_8888 used here because some views have transparency.

After some time of usage, it stops to draw.

I added android:largeHeap="true" and android:hardwareAccelerated="false" to Manifest and got OOM

12-17 11:19:32.591 15169-15169/com.appcard.androidterminal E/art: Throwing OutOfMemoryError "Failed to allocate a 614412 byte allocation with 4194304 free bytes and 244MB until OOM"
12-17 11:19:32.619 15169-15169/com.appcard.androidterminal E/Surface: dequeueBuffer failed (Function not implemented)
12-17 11:19:32.620 15169-15169/com.appcard.androidterminal E/ViewRootImpl: Could not lock surface
    java.lang.IllegalArgumentException
        at android.view.Surface.nativeLockCanvas(Native Method)
        at android.view.Surface.lockCanvas(Surface.java:264)
        at android.view.ViewRootImpl.drawSoftware(ViewRootImpl.java:2998)
        at android.view.ViewRootImpl.draw(ViewRootImpl.java:2966)
        at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2753)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2367)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1292)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6598)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:800)
        at android.view.Choreographer.doCallbacks(Choreographer.java:603)
        at android.view.Choreographer.doFrame(Choreographer.java:572)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:786)
        at android.os.Handler.handleCallback(Handler.java:815)
        at android.os.Handler.dispatchMessage(Handler.java:104)
        at android.os.Looper.loop(Looper.java:194)
        at android.app.ActivityThread.main(ActivityThread.java:5643)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)

I tried to recycle bitmap after drawing, but it doesn't help.

Unknown Unknown · Accepted Answer · 2018-12-17T09:43:08

This is because of memory limitations. You can load scaled down version of your bitmap.

Follow documentation here to know more about how to efficiently load bitmaps

https://developer.android.com/topic/performance/graphics/load-bitmap

Throwing OutOfMemoryError on create Bitmap

3 Answers