Hi,
I'm facing a serious Memory Leaking problem. The code below is a ImageAdapter
for android.widget.Gallery.
After I rotate the screen for several times, the Application crashes and report
a "out of memory error: bitmap size exceeds VM budget."
I wrote a finish() but it doesn't work either.
Really grateful to any suggestions.
Code:
public class ImageAdapter extends BaseAdapter {
private Context mContext;
private ImageView[] mImages;
public ImageAdapter(Context context, Bitmap[] bitmaps) {
if (mContext == null) {
mContext = context;
}
if (mImages == null) {
mImages = new ImageView[bitmaps.length];
}
createReflectedImages(bitmaps);
}
public ImageAdapter(Context context, int[] imageIds) {
if (mContext == null) {
mContext = context;
}
Bitmap[] bitmaps = new Bitmap[imageIds.length];
if (mImages == null) {
mImages = new ImageView[imageIds.length];
}
int i = 0;
for (int imageId : imageIds) {
bitmaps[i++] = BitmapFactory.decodeResource(
mContext.getResources(), imageId);
}
createReflectedImages(bitmaps);
}
private boolean createReflectedImages(Bitmap[] mBitmaps) {
// The gap we want between the reflection and the original image
final int reflectionGap = 0;
int index = 0;
Bitmap reflectionImage = null;
Bitmap bitmapWithReflection = null;
BitmapDrawable bd;
Paint paint = new Paint();
for (Bitmap originalImage : mBitmaps) {
int width = originalImage.getWidth();
int height = originalImage.getHeight();
Matrix matrix = new Matrix();
matrix.preScale(1, -1);
reflectionImage = Bitmap.createBitmap(originalImage, 0, height /
2,width, height / 2, matrix, false);
bitmapWithReflection = Bitmap.createBitmap(width,(height + height / 2),
Config.ARGB_8888);
Canvas canvas = new Canvas(bitmapWithReflection);
canvas.drawBitmap(originalImage, 0, 0, null);
paint.reset();
canvas.drawRect(0, height, width, height + reflectionGap, paint);
canvas.drawBitmap(reflectionImage, 0, height + reflectionGap, null);
final LinearGradient shader = new LinearGradient(0,
originalImage.getHeight(), 0,bitmapWithReflection.getHeight()+ reflectionGap,
0x70ffffff, 0x00ffffff, TileMode.CLAMP);
paint.setShader(shader);
paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
canvas.drawRect(0, height, width, bitmapWithReflection.getHeight() +
reflectionGap, paint);
bd = new BitmapDrawable(bitmapWithReflection);
bd.setAntiAlias(true);
final ImageView imageView = new ImageView(mContext);
imageView.setImageDrawable(bd);
imageView.setLayoutParams(new GalleryFlow.LayoutParams(120, 120));
mImages[index++] = imageView;
originalImage.recycle();
}
reflectionImage.recycle();
return true;
}
public int getCount() {
return mImages.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = mImages[position];
}
return convertView;
}
public void finish() {
for (ImageView v : mImages) {
v.setImageDrawable(null);
v = null;
}
}
}
2010-10-22
kearnel_android
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