android - 如何处理 Glide V4 中找不到图像的错误

Question

我尝试在 Glide 中处理未找到图像 (404) 错误，但它无法编译:

Glide.with(this@ImageActivity)
                        .addDefaultRequestListener(
                                object:RequestListener<Drawable> {
                                    override fun onLoadFailed(e: GlideException?, model: Any?, target: Target<Drawable>?, isFirstResource: Boolean): Boolean {
                                        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
                                    }

                                    override fun onResourceReady(resource: Drawable?, model: Any?, target: Target<Drawable>?, dataSource: DataSource?, isFirstResource: Boolean): Boolean {
                                        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
                                    }

                                }

                        )
                        .load(imageURL).apply(requestOptions)
                        .into(imageview)

但是编译器在 object:RequestListener 上引发此错误:

Type mismatch: inferred type is but RequestListener! was expected

Answer 1

如果要使用addDefaultRequestListener，则需要使用Any而不是Drawable

Glide.with(context).addDefaultRequestListener(object : RequestListener<Any> {
            override fun onLoadFailed(e: GlideException?, model: Any?, target: com.bumptech.glide.request.target.Target<Any>?, isFirstResource: Boolean): Boolean {
            }

            override fun onResourceReady(resource: Any?, model: Any?, target: com.bumptech.glide.request.target.Target<Any>?, dataSource: DataSource?, isFirstResource: Boolean): Boolean {
            }

        })