一、问题说明

Glide 加载图片时监听了回调，并在失败时再次加载其它图片后报错。

代码：

Glide.with(mContext).load(imgTeacher).listener(new RequestListener<Drawable>() {@Overridepublic boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {return false;}@Overridepublic boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {try {Glide.with(mContext).load(imgTeacher).into(holder.iv2);} catch (Exception e) {e.printStackTrace();}return false;}}).into(holder.iv2);

异常日志：

java.lang.IllegalStateException: You can't start or clear loads in RequestListener or Target callbacks. If you're trying to start a fallback request when a load fails, use RequestBuilder#error(RequestBuilder). Otherwise consider posting your into() or clear() calls to the main thread using a Handler instead.at com.bumptech.glide.request.SingleRequest.assertNotCallingCallbacks(SingleRequest.java:305)at com.bumptech.glide.request.SingleRequest.begin(SingleRequest.java:217)at com.bumptech.glide.RequestBuilder.into(RequestBuilder.java:806)at com.bumptech.glide.RequestBuilder.into(RequestBuilder.java:780)at com.bumptech.glide.RequestBuilder.into(RequestBuilder.java:771)at com.xueersi.lib.imageloader.GlideLoader.into(GlideLoader.java:321)at com.xueersi.lib.imageloader.GlideLoader.request(GlideLoader.java:250)at com.xueersi.lib.imageloader.SingleConfig.show(SingleConfig.java:270)at com.xueersi.lib.imageloader.SingleConfig.access$2700(SingleConfig.java:23)at com.xueersi.lib.imageloader.SingleConfig$ConfigBuilder.into(SingleConfig.java:347)

二、解决方案

hander.post 一下：

Glide.with(mContext).load("").listener(new RequestListener<Drawable>() {@Overridepublic boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {holder.iv1.post(() -> {Glide.with(mContext).load(imgTeacher).into(holder.iv2);});return false;}@Overridepublic boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {return false;}}).into(holder.iv2);