Questions tagged [bitmapregiondecoder]
10 questions
13
votes
4 answers
Why do I NOT get an out of memory exception?
I have a high resolution image (2588*1603) in drawable folder. If I use below code (1) to set it for the imageView I do not get OOM exception and the image assigned as expected:
public class MainActivity extends ActionBarActivity{
private…
mmlooloo
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5
votes
2 answers
Decode specific areas of image in Bitmapfactory?
I'm working with GeoTiff/PNG files too large for handling as a whole in my code.
Is there any possibility to decode specific areas (e.g. given by two x,y coordinates) of a file in bitmapfactory? Haven't found anything looking similar at…
Peter K.
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- 10
3
votes
0 answers
using the BitmapRegionDecoder when there is also a matrix
using the BitmapRegionDecoder to decode partial areas works fine in the general use.
however, i've come to a piece of code where i had to replace the creation of a bitmap by using a BitmapRegionDecoder , but here's the catch: the creation of the new…
android developer
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2
votes
0 answers
BitmapRegionDecoder - inverse usage to build together a new image
I want to make a crop function with no quality loss. Therefore I load an image in a lower quality and reload parts of the image with the BitmapRegionDecoder to display tiles in a good resolution. So far so good, displaying is working fine like…
prom85
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2
votes
2 answers
Images loaded with BitmapRegionDecoder are ok on simulator, but too large on device
In a simple word game app I load 26 letter tile images from a PNG-image stripe with the following code:
private static final CharacterIterator ABC =
new StringCharacterIterator("ABCDEFGHIJKLMNOPQRSTUVWXYZ");
private static HashMap
Alexander Farber
- 21,519
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1
vote
0 answers
BitmapRegionDecoder reading OBB using APK Expansion ZIP Library
I'm trying to read a bitmap from an OBB file using BitmapRegionDecoder together with the APK expansion Zip Library as follows.
ZipResourceFile expansionFile = APKExpansionSupport.getAPKExpansionZipFile(cont,1, 1);
AssetFileDescriptor…
larix
- 11
- 2
0
votes
0 answers
Android ImageDecoder extremely slow performance with HEIC/HEIF images
I'm using subsampling-scale-image-view to display images, and I implemented function like the Gallery app usually do (allow user to view image, zoom then and swipe left or right to switch
between images).
I found out that when I swipe to change…
Hhry
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0
votes
1 answer
Rubbish drawn instead of transparent color when using BitmapRegionDecoder
So, simple task: I have a big picture, which has transparent parts. I want to decode rectangle part of it as a bitmap using BitmapRegionDecoder method decodeRegion. While non-transparent parts of picture are decoded well, I get some crap instead of…
Andy Silver
- 155
- 3
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0
votes
1 answer
Loading 26 letter images from a PNG stripe using BitmapRegionDecoder
In a word game app I am trying to load 26 letter tiles from a 6205 x 240 PNG image:
private Paint mPaint = new Paint(Paint.FILTER_BITMAP_FLAG);
mStripe = BitmapFactory.decodeResource(
context.getResources(), R.drawable.big_english);
int h =…
Alexander Farber
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0
votes
1 answer
BitmapRegionDecode.decodeRegion, skia error when trying to create tile from bitmap
Hi i get a error skia: --- decoder->decodeRegion returned false when I try to decode a second region with BitmapRegionDeocde.decodeRegion. I manage to get the first region bitmap, but if get null for the second region.
How can I manage to get the…
Kowlown
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