是否有人使用Glide从后台线程中获取图片?我不断得到这个断言:
java.lang.IllegalArgumentException: You must call this method on the main thread
但根据这个帖子,它应该有效:
https://github.com/bumptech/glide/issues/310
然而,我不能让它工作,除非我从主线程中调用它。
这是我试图从主线程中做的事情:
Glide.get(mContext);
loadUserImage(userImageUrl);
// wait 5 seconds before trying again
int imageLoadingTimeOut = mContext.getResources().getInteger(R.integer.image_loading_time_out);
if (imageLoadingTimeOut > 0) {
new Timer().schedule(new TimerTask() {
@Override
public void run() {
if (!mUserImageLoaded) {
loadUserImage(userImageUrl);
}
}
}, imageLoadingTimeOut);
}
}
和loadUserImage:
private boolean mUserImageLoaded = false;
private void loadUserImage(String userImageUrl) {
if (userImageUrl != null && !userImageUrl.isEmpty() && !mUserImageLoaded) {
Glide.with(mContext).using(Cloudinary.getUrlLoader(mContext)).load(userImageUrl).crossFade().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) {
mImageMessageContent.invalidate();
mUserImageLoaded = true;
return false;
}
}).into(mImageMessageContent);
} else {
mImageMessageContent.setVisibility(View.GONE);
}
}
和mContext只是活动“this”指针。
无论如何,我可以从不同于主线程的线程中使用Glide吗?
答案 0 :(得分:8)
into(ImageView)
的{{1}}方法要求您仅在主线程上调用它,但是当您将加载传递给Timer时,它将在Glide
线程中执行。
您可以通过调用background
而不是get()
来检索位图,然后通过调用into()
在bitmap
上设置ImageView
。
setImageBitmap()
您还可以查看此document以获取更多信息。
答案 1 :(得分:6)
发布代码以防万一。
Bitmap myBitmap = Glide.with(applicationContext)
.load(yourUrl)
.asBitmap()
.centerCrop()
.into(Target.SIZE_ORIGINAL,Target.SIZE_ORIGINAL)
.get()
imageView.setImageBitmap(myBitmap);
答案 2 :(得分:0)
在我的情况下,我想显示来自FirebaseMessagingService
的通知,其中包含将通过Glide
下载的图像,这段代码给我带来了成功:
try {
Bitmap bitmap= Glide.with(getApplicationContext())
.load(imageUrl) // image url in string
.asBitmap().into(Target.SIZE_ORIGINAL, Target.SIZE_ORIGINAL).get();
// now i can pass bitmap to notificationBuilder like
notificationBuilder.setStyle(new NotificationCompat.BigPictureStyle().bigPicture(bitmap));
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
答案 3 :(得分:0)
private class AsyncTaskRunner extends AsyncTask<String, String, RequestBuilder>
{
ProgressDialog progressDialog;
@Override
protected void onPreExecute() {
progressDialog = ProgressDialog.show(MainActivity.this,
"Please Wait",
"Image is loading...");
}
@Override
protected RequestBuilder<Drawable> doInBackground(String... strings) {
URL url = null;
try {
url = new URL(strings[0]);
} catch (MalformedURLException e) {
e.printStackTrace();
}
RequestBuilder<Drawable> g= Glide.with(MainActivity.this).load(url);
return g;
}
@Override
protected void onPostExecute(RequestBuilder v) {
v.into(imageView);
imageView.setVisibility(View.VISIBLE);
progressDialog.dismiss();
}
}
答案 4 :(得分:0)
这是Kotlin-way解决方案
Glide.with(context).asBitmap().load(photo_url).into(
BitmapImageViewTarget(imgYourResourceID)
)
答案 5 :(得分:0)
我需要在recyclerView中解密并显示大图像 而且因为这是一个繁重的过程,所以我必须在后台进行,所以这就是为什么:
public void decryptImage(Uri uri, ViewHolder holder) {
Runnable runnable = new Runnable() {
@Override
public void run() {
try {
Glide.with(G.context)
.asBitmap()
.load(decrypt(G.getEncryptionKey(), G.getConstantKey(), uri.getPath()))
.into(new SimpleTarget<Bitmap>() {
@Override
public void onResourceReady(Bitmap resource, Transition<? super Bitmap> transition) {
Glide.with(G.context).load(resource).into(holder.mImageView);
}
});
}
};
new Thread(runnable).start();
}