android - 使用 Glide 库设置完成图像加载后进度条的可见性

Question

嗨，我想要一个图像进度条，它会在图像加载时显示，但是当图像加载完成时，我想将其设置为消失。早些时候，我为此使用了 Picasso 库。但我不知道如何将它与 Glide 库一起使用。我知道有一些资源就绪功能，但我不知道如何使用它。谁能帮我？

毕加索图书馆的代码

Picasso.with(mcontext).load(imgLinkArray.get(position).mUrlLink)
       .into(imageView, new Callback() {
           @Override
           public void onSuccess() {
               progressBar.setVisibility(View.GONE);
           }

           @Override
           public void onError() {
           }
        })
;

现在我如何使用 Glide 做到这一点？

Glide.with(mcontext).load(imgLinkArray.get(position).mUrlLink)
     .into(imageView);

我可以通过 Glide 加载图像，但是progressBar.setVisibility(View.GONE);如果图像被加载，我怎么能在代码中的某个地方写呢？

score 249 · Accepted Answer

问题相当古老，我不知道当时滑翔的情况如何，但现在可以通过听众轻松完成（而不是在选择正确的答案中提出）。

progressBar.setVisibility(View.VISIBLE);
Glide.with(getActivity())
     .load(args.getString(IMAGE_TO_SHOW))
     .listener(new RequestListener<String, GlideDrawable>() {
         @Override
         public boolean onException(Exception e, String model, Target<GlideDrawable> target, boolean isFirstResource) {
             return false;
         }

         @Override
         public boolean onResourceReady(GlideDrawable resource, String model, Target<GlideDrawable> target, boolean isFromMemoryCache, boolean isFirstResource) {
             progressBar.setVisibility(View.GONE);
             return false;
         }
     })
     .into(imageFrame)
;

如果想自己处理动画之类的事情，则返回 true；如果希望 glide 为您处理它们，则返回 false。

score 40 · Accepted Answer

如果你想在 KOTLIN 中这样做，你可以这样尝试：

    Glide.with(context)
            .load(url)
            .listener(object : RequestListener<Drawable> {
                override fun onLoadFailed(e: GlideException?, model: Any?, target: Target<Drawable>?, isFirstResource: Boolean): Boolean {
                    //TODO: something on exception
                }
                override fun onResourceReady(resource: Drawable?, model: Any?, target: Target<Drawable>?, dataSource: DataSource?, isFirstResource: Boolean): Boolean {
                    Log.d(TAG, "OnResourceReady")
                    //do something when picture already loaded
                    return false
                }
            })
            .into(imgView)

score 17 · Accepted Answer

17

我的回答是基于过时的 API。请参阅此处以获取更多最新答案。

于 2014-09-26T19:02:38.973 回答

score 10 · Accepted Answer

在例外情况下再次显示的条件ProgressBar

 Glide.with(context)
    .load(image_url)
    .listener(new RequestListener<String, GlideDrawable>() {
        @Override
        public boolean onException(Exception e, String model, Target<GlideDrawable> target, boolean isFirstResource) {
            if(e instanceof UnknownHostException)
                progressBar.setVisibility(View.VISIBLE);
            return false;
        }

        @Override
        public boolean onResourceReady(GlideDrawable resource, String model, Target<GlideDrawable> target, boolean isFromMemoryCache, boolean isFirstResource) {
            progressBar.setVisibility(View.GONE);
            return false;
        }
    })
    .into(imageView);

score 8 · Accepted Answer

GlideDrawable 已弃用，请使用简单的 Drawable

RequestOptions requestOptions = new RequestOptions();
requestOptions.placeholder(R.drawable.placeholder);
requestOptions.error(R.drawable.error);

Glide.with(getContext())
                 .setDefaultRequestOptions(requestOptions)
                 .load(finalPathOrUrl)
                 .listener(new RequestListener<Drawable>() {
                        @Override
                        public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {
                            progressBar.setVisibility(View.GONE);
                            return false;
                        }

                        @Override
                        public boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
                            progressBar.setVisibility(View.GONE);
                            return false;
                        }
                    })
                 .into(mImageView);

score 8 · Accepted Answer

上面的解决方案对我也很有效，但是当我使用asBitmap()下载图像时。这没用。

我们需要使用 BitmapImageViewTarget

Glide.with(this) .load(imageURL)
 .asBitmap()
 .placeholder(R.drawable.bg)
 .into(new BitmapImageViewTarget(imageView) {
            @Override
            public void onResourceReady(Bitmap  drawable, GlideAnimation anim) {
                super.onResourceReady(drawable, anim);
                progressBar.setVisibility(View.GONE);
            }
        });

score 5 · Accepted Answer

在 Kotlin 中，您可以执行以下操作

Glide.with(context)
            .setDefaultRequestOptions(RequestOptions().placeholder(R.drawable.ic_image_placeholder).error(R.drawable.ic_image_placeholder))
            .load(url)
            .listener(object : RequestListener<Drawable>{
                override fun onLoadFailed(e: GlideException?, model: Any?, target: Target<Drawable>?, isFirstResource: Boolean): Boolean {
                    return false
                }

                override fun onResourceReady(resource: Drawable?, model: Any?, target: Target<Drawable>?, dataSource: DataSource?, isFirstResource: Boolean): Boolean {
                    return false
                }

            })
            .into(imageView)

score 3 · Accepted Answer

更新：

Glide.with(this)
            .load(imageUrl)
            .listener(new RequestListener<Drawable>() {
                @Override
                public boolean onLoadFailed(@Nullable final GlideException e,
                                            final Object model, final Target<Drawable> target,
                                            final boolean isFirstResource) {
                    showProgress(false);

                    mNoContentTextView.setVisibility(View.VISIBLE);

                    return false;
                }

                @Override
                public boolean onResourceReady(final Drawable resource, 
                                               final Object model, 
                                               final Target<Drawable> target, 
                                               final DataSource dataSource, 
                                               final boolean isFirstResource) {
                    showProgress(false);

                    mNoContentTextView.setVisibility(View.GONE);
                    mContentImageView.setImageDrawable(resource);

                    return false;
                }
            })
            .into(mContentImageView);

score 3 · Accepted Answer

科特林方式

showProgressBar()
Glide.with(context)
                .load(image_url)
                .listener(object : com.bumptech.glide.request.RequestListener<Drawable> {
                    override fun onLoadFailed(
                        e: GlideException?,
                        model: Any?,
                        target: Target<Drawable>?,
                        isFirstResource: Boolean
                    ): Boolean {
                        hideProgressBar()
                        return false
                    }

                    override fun onResourceReady(
                        resource: Drawable?,
                        model: Any?,
                        target: Target<Drawable>?,
                        dataSource: DataSource?,
                        isFirstResource: Boolean
                    ): Boolean {
                        img_product_banner.visibility = View.VISIBLE
                        hideProgressBar()
                        return false
                    }

                }).placeholder(R.drawable.placeholder)
                .diskCacheStrategy(DiskCacheStrategy.ALL)
                .into(img_product_banner)

score 2 · Accepted Answer

在 xml 中获取具有高度和宽度（match_parent）的进度条。

在调用下面提到的方法之前，设置进度条可见性可见。

public void setImageWIthProgressBar(Context context, final ImageView imageView, String imageUrl, final ProgressBar progressBar) {

        Glide.with(context)
                .load(imageUrl)
                .listener(new RequestListener<String, GlideDrawable>() {
                    @Override
                    public boolean onException(Exception e, String model, Target<GlideDrawable> target, boolean isFirstResource) {
                        progressBar.setVisibility(View.GONE);
                        return false;
                    }

                    @Override
                    public boolean onResourceReady(GlideDrawable resource, String model, Target<GlideDrawable> target, boolean isFromMemoryCache, boolean isFirstResource) {
                        progressBar.setVisibility(View.GONE);
                        return false;
                    }
                })
                .into(imageView);

    }//setImageWIthProgressBar

score 2 · Accepted Answer

我是怎么做事的。更短的方式，更简洁的代码

例子：

progress_bar.visibility = View.VISIBLE

profilePicturePath?.let {
    GlideApp.with(applicationContext)
        .load(CloudStorage.pathToReference(it))
        .placeholder(R.drawable.placeholder)
        .listener(GlideImpl.OnCompleted {
            progress_bar.visibility = View.GONE
        })
    .into(profile_picture)
} ?: profile_picture.setImageResource(R.drawable.placeholder)

用法：

GlideImpl.OnCompleted {
    // completed
}

只是传递GlideImpl.OnCompleted { }给 Glide 的.listener()

接受 Glide 的 RequestListener 的 GlideImpl.kt 类

import android.graphics.drawable.Drawable
import com.bumptech.glide.load.DataSource
import com.bumptech.glide.load.engine.GlideException
import com.bumptech.glide.request.RequestListener
import com.bumptech.glide.request.target.Target

object GlideImpl {

    object OnCompleted : RequestListener<Drawable> {

        private lateinit var onComplete: () -> Unit

        operator fun invoke(onComplete: () -> Unit): OnCompleted {
            OnCompleted.onComplete = { onComplete() }
            return this
        }

        override fun onResourceReady(
            resource: Drawable?,
            model: Any?,
            target: Target<Drawable>?,
            dataSource: DataSource?,
            isFirstResource: Boolean
        ): Boolean {
            onComplete()
            return false
        }

        override fun onLoadFailed(
            e: GlideException?,
            model: Any?,
            target: Target<Drawable>?,
            isFirstResource: Boolean
        ): Boolean {
            onComplete()
            return false
        }
    }
}

就是这样！

score -1 · Accepted Answer

This is the best answer as it does not use any hack like setting visibility to get the desired output.

Download a gif of progressbar and call it progressbargif and put it in the drawable folder.

        Glide.with(ctx)
            .load(url)
            .thumbnail(Glide.with(ctx).load(R.drawable.progressbargif))
            .diskCacheStrategy(DiskCacheStrategy.SOURCE)
            .error(R.drawable.image_unavailable)
            .crossFade(200)
            .into(iv);

Once the url image is loaded, the thumbnail vanishes. The thumbnail vanishes immediately when the cached image is loaded.

android - 使用 Glide 库设置完成图像加载后进度条的可见性

12 回答 12

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