Question

实际上，我是Kotlin的新手，一直在从事一个项目，对此一无所知，在发布此问题之前，我看过其他几篇文章和帖子，但没有一篇对您有所帮助。

Here's the actual shot from the Android Studio

这段代码有什么问题？还说... onException overrides nothing. onResourceReady overrides nothing.

 Glide.with(this@SetupUserActivity).load(storedPhotoUrl)
                               .listener(object : RequestListener<String, Drawable> {
                                override fun onException(e: Exception?, model: String?, target: Target<Drawable>?, isFirstResource: Boolean): Boolean {
                                    progress_bar_setup_user_img.visibility = View.GONE
                                    return false; }

                                override fun onResourceReady(resource: Drawable?, model: String?, target: Target<Drawable>?, isFromMemoryCache: Boolean, isFirstResource: Boolean): Boolean {
                                    progress_bar_setup_user_img.visibility = View.GONE
                                    return false
                                }

                            }).into(user_img_setup)
                }
            } catch (e: Exception) {
                e.printStackTrace()
            }

Answer 1

尝试将您的请求侦听器更改为object : RequestListener<Drawable>

Glide.with(this@SetupUserActivity).load(storedPhotoUrl)
                               .listener(object : RequestListener<Drawable> {
.........

我认为您遇到该问题的原因是因为您可能会覆盖错误的RequestListener。

尝试查看此帖子以获取其他帮助：Glide callback after success in Kotlin

您必须重写这些方法：

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.
                            }

Answer 2

尝试一下

Glide.with(this@SetupUserActivity).load(storedPhotoUrl)
        .listener(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.
            }

        }).into(user_img_setup)

Kotlin中'Interface RequestListener <R：Any！>的一种类型参数的解决方案是什么？

2 个答案: