Android Universal Image Loader - how do I set the specs correctly?

Question

I have an app that loads a lot of big images remotely. When I use nostra's Universal Image Loader (https://github.com/nostra13/Android-Universal-Image-Loader) I often get Out Of Memory errors. I don't know how I should set up the imageloader to prevent this.

This is my current ImageLoader specs:

ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(context)
        .enableLogging()
        .memoryCache(new WeakMemoryCache())
        .build(); 

this.imgDispOpts = new DisplayImageOptions.Builder()
        .cacheInMemory() 
        .cacheOnDisc() 
        .imageScaleType(ImageScaleType.IN_SAMPLE_INT) 
        .build();

this.imageLoader = ImageLoader.getInstance();
this.imageLoader.init(config);

And yes, I pass imgDispOpts when calling displayImage().

score 5 · Answer 1 · answered Mar 20 '13 at 21:08

Try not cache in memory, use EXACTLY scale type and RGB_565 for bitmap decoding.

ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(context)
    .enableLogging()
    .build(); 

this.imgDispOpts = new DisplayImageOptions.Builder() 
    .cacheOnDisc() 
    .imageScaleType(ImageScaleType.EXACTLY) 
    .bitmapConfig(Bitmap.Config.RGB_565)
    .build();

score 1 · Answer 2 · edited Apr 11 '14 at 00:31

I tried to reduce the bitmap size in the bitmap decoder, which worked for me.

In package com.nostra13.universalimageloader.core.decode, open BaseImageDecoder.java,

public Bitmap decode(ImageDecodingInfo decodingInfo) throws IOException {
        Bitmap decodedBitmap;
        ImageFileInfo imageInfo;

        InputStream imageStream = getImageStream(decodingInfo);
        try {
            imageInfo = defineImageSizeAndRotation(imageStream, decodingInfo);
            imageStream = resetStream(imageStream, decodingInfo);
            Options decodingOptions = prepareDecodingOptions(imageInfo.imageSize, decodingInfo);

// add in the decodingOptions here:

decodingOptions.inSampleSize = 10; // or any number

// or you can calculate the resample rate by using the screen size / grid size and the image size

decodedBitmap = BitmapFactory.decodeStream(imageStream, null, decodingOptions);
    } finally {
        IoUtils.closeSilently(imageStream);
    }
    if (decodedBitmap == null) {
        L.e(ERROR_CANT_DECODE_IMAGE, decodingInfo.getImageKey());
    } else {
        decodedBitmap = considerExactScaleAndOrientaiton(decodedBitmap, decodingInfo, imageInfo.exif.rotation, imageInfo.exif.flipHorizontal);
    }
    return decodedBitmap;
}

It worked. Thanks alot! Out of memory exception had driven me mad. — NightFury, Apr 11 '14 at 00:19

Raghunandan · Answer 3 · 2013-03-20T13:15:13.130

0

Try the below configuration

ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(context)
    .enableLogging()
     discCacheExtraOptions(maxImageWidthForDiscCache, maxImageHeightForDiscCache, CompressFormat.PNG, 0);
    .memoryCache(new WeakMemoryCache())
    .build();

 this.imgDispOpts = new DisplayImageOptions.Builder()
    .cacheInMemory() 
    .cacheOnDisc() 
    .imageScaleType(ImageScaleType.EXACTLY) 
    .build();

You can also use Lazy Loading of images.https://github.com/thest1/LazyList.

Universal Image loader based on Fedor Vlasov's project LazyList. Improved version of LazyList.

edited Mar 20 '13 at 13:15

answered Mar 20 '13 at 13:05

Raghunandan

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what is the work of this line, discCacheExtraOptions(maxImageWidthForDiscCache, maxImageHeightForDiscCache, CompressFormat.PNG, 0); – Ashish Dwivedi May 10 '13 at 06:24
for caching of bitmaps with proper height and width setting the max height and width – Raghunandan May 10 '13 at 06:26
Is it can be effect on Image quality if we set the static height and width ? – Ashish Dwivedi May 10 '13 at 06:50
set the image height and width to your desired value to reduce out of memory error. if the image is too large to fit in memory you will run into oom error – Raghunandan May 10 '13 at 06:50

score 0 · Answer 4 · answered Apr 05 '15 at 14:26

You may try this, it worked well for me:

ImageLoaderConfiguration.Builder config = new ImageLoaderConfiguration.Builder(context)
//Add these lines to your ImageLoader configuration
        .threadPriority(Thread.NORM_PRIORITY - 2);
        .denyCacheImageMultipleSizesInMemory();
        .diskCacheExtraOptions(150, 150, null); // You may change image resolution to fit your needs


ImageLoader.getInstance().init(config.build());

Android Universal Image Loader - how do I set the specs correctly?

4 Answers4

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