图片黑色背景装有univerisal图像加载器 [英] Black Background on image loaded with univerisal image loader

问题描述

如下所示。第一个图像是默认的图像，在<链接href="http://goldentrail.towardstech.com/assets/images/membersimage/buttons/eat.png">http://goldentrail.towardstech.com/assets/images/membersimage/buttons/eat.png.其下方的第二图像是使用UIL加载图像

As shown below. The first image is the default image linked at http://goldentrail.towardstech.com/assets/images/membersimage/buttons/eat.png. while the second image below it is the image that is loaded using uil

这是ImageLoader的配置。

This is the imageloader configuration

    File cacheDir = StorageUtils.getCacheDirectory(context);
    ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(context)
            .memoryCacheExtraOptions(480, 800) // default = device screen dimensions
            .discCacheExtraOptions(480, 800, CompressFormat.JPEG, 75)
            .taskExecutor(AsyncTask.THREAD_POOL_EXECUTOR)
            .taskExecutorForCachedImages(AsyncTask.THREAD_POOL_EXECUTOR)
            .threadPoolSize(3) // default
            .threadPriority(Thread.NORM_PRIORITY - 1) // default
            .tasksProcessingOrder(QueueProcessingType.FIFO) // default
            .denyCacheImageMultipleSizesInMemory()
            .memoryCache(new LruMemoryCache(2 * 1024 * 1024))
            .memoryCacheSize(2 * 1024 * 1024)
            .discCache(new UnlimitedDiscCache(cacheDir)) // default
            .discCacheSize(50 * 1024 * 1024)
            .discCacheFileCount(100)
            .discCacheFileNameGenerator(new HashCodeFileNameGenerator()) // default
            .imageDownloader(new BaseImageDownloader(context)) // default
            .imageDecoder(new BaseImageDecoder()) // default
            .defaultDisplayImageOptions(DisplayImageOptions.createSimple()) // default
            .enableLogging()
            .build();

这是displayoptions

this is the displayoptions

DisplayImageOptions options = new DisplayImageOptions.Builder()
    .bitmapConfig(Bitmap.Config.ARGB_8888) // default
    .cacheInMemory()
    .cacheOnDisc()

    .build();

推荐答案

你看到的自述评论：

DON'T COPY THIS CODE TO YOUR PROJECT! This is just example of ALL options using.

不要使用 .discCacheExtraOptions（480，800，COM pressFormat.JPEG，75）。 保存在光盘高速缓存你的图像，不能有透明背景的JPEG文件。

Don't use .discCacheExtraOptions(480, 800, CompressFormat.JPEG, 75). Your images saved in disc cache as JPEG files which can't have transparent background.

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