本文介绍了Glide 4 - 特定调用的 ResourceDecoder的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

在浏览了所有 Glide 文档和 StackOverflow 问答后,我找不到任何关于在版本 4 中为单个 Glide 调用应用资源解码器的信息.

After going through all Glide documentation and StackOverflow questions and answers, I cannot find any information regarding applying resource decoder for a single Glide call in version 4.

在 Glide 3 版本中,我们可以这样做:

In version Glide 3, we can do this:

Glide.with(imagePreview.context)
          .load(mediaItem.path)
          .asBitmap()
          .decoder(decoderWithDownSampleAtMost(imagePreview.context))
          .diskCacheStrategy(DiskCacheStrategy.NONE)
          .skipMemoryCache(false)
          .dontAnimate()
          .into(target)
private fun decoderWithDownSampleAtMost(ctx: Context): GifBitmapWrapperResourceDecoder {
    return GifBitmapWrapperResourceDecoder(
        ImageVideoBitmapDecoder(StreamBitmapDecoder(Downsampler.AT_MOST,
            Glide.get(ctx).bitmapPool,
            DecodeFormat.DEFAULT),
            FileDescriptorBitmapDecoder(ctx)),
        GifResourceDecoder(ctx),
        Glide.get(ctx).bitmapPool)
  }

在第 4 版中,我知道我们可以使用 AppGlideModule 来自定义 ResourceDecoder

And in version 4, I know we can use AppGlideModule for custom ResourceDecoder

@GlideModule
class MyAppGlideModule : AppGlideModule() {
    override fun registerComponents(context: Context, glide: Glide, registry: Registry) {
        registry.prepend(String::class.java, Bitmap::class.java, GalleryDecoder(context))
    }
}

然而,这适用于所有 Glide 调用.我怎样才能让 ResourceDecoder 表现得像 v3:能够应用于单个调用?

However, this applies to all Glide calls. How can I make ResourceDecoder behave like v3: the ability to apply on individual call?

更新:在咨询 Glide Github Issues 此处 https://github.com/bumptech/glide/issues/3522

所以基本上,我需要创建一个自定义的 Option 并使用它来确定是否会触发我的自定义 ResourceDecoder.这是我的示例:

So basically, I need to create a custom Option and use it to determine whether my custom ResourceDecoder will be triggered. Here is my sample:

  • 普通AppGlideModule
@GlideModule
class MyAppGlideModule : AppGlideModule() {
    override fun registerComponents(context: Context, glide: Glide, registry: Registry) {
        registry.prepend(Any::class.java, Bitmap::class.java, MainActivity.GalleryDecoder(context, glide.bitmapPool))
    }
}

  • 在我的Activity中:
  • class MainActivity : AppCompatActivity() {
    
        companion object {
            val GALLERY_DECODER: Option<Boolean> = Option.memory("abc")
        }
    
        override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            setContentView(R.layout.activity_main)
    
            GlideApp.with(this)
                .asBitmap()
                .load("link_or_path_here")
                .apply(option(GALLERY_DECODER, true))
                .into(image_view)
    
        }
    }
    

    • 我的GalleryDecoder:
    • open class GalleryDecoder(
              private val context: Context,
              private val bitmapPool: BitmapPool
          ) : ResourceDecoder<Any, Bitmap> {
      
              override fun decode(source: Any, width: Int, height: Int, options: Options): Resource<Bitmap>? {
                  return BitmapResource.obtain(BitmapFactory.decodeResource(context.resources, R.drawable.giphy), bitmapPool)
              }
      
              override fun handles(source: Any, options: Options): Boolean = options.get(GALLERY_DECODER) ?: false
      
          }
      

      就是这样,如果您不想使用 GalleryDecoder,只需从 Glide 加载中删除 .apply(option(GALLERY_DECODER, true)).干杯!

      That's it, if you don't want to use GalleryDecoder, just remove .apply(option(GALLERY_DECODER, true)) from Glide load. Cheers!

      推荐答案

      我认为你可以这样做:

      GlideApp.with(mContext)
              // TRY With below line....
              .setDefaultRequestOptions(new GlideOptions().decode(Class<T> class))
              .load(R.drawable.ic_loader)
              .into(imageView);
      

      我认为你必须传递你的类对象.我还没有尝试过,但我认为它会起作用.

      I think you have to pass your class object. I haven't tried but I think it will work.

      这篇关于Glide 4 - 特定调用的 ResourceDecoder的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

08-27 13:17