I have a listview that loads images form urls
I get lag when when images are out of view. Meaning the ones That i have to scroll to see, seems to be loading from the internet while I am trying to scroll to them.
How can I let the listview load all my images at first run?
I know this is an old question, but for those who have a similar problem:
The Glide Library could help with it. I had this problem as well and I could solve it by using Glide. You can load an image like this:
Glide.with(mContext)
.asDrawable()
.load(mImageUrl)
.into(mViewHolder.mImageView);
Related
I'm using Glide v3.8.0 (not v4) to load Image in to ImageView in an item of RecyclerView, and there is a bit problems: every time scroll the RecyclerView up or down, Glide load the Image into ImageView that already been loaded before, and the bad result is scroll is not smooth because it keep reload Image every time I scroll to, I don't want to reload an image that completely loaded. I have found some same questions but still have no right answer to this problem
This is my code to load image into RecyclerView item
Glide.with(mContext).load(function.BitmapToByte(function.GetBitmap(currSong.getData())))
.diskCacheStrategy(DiskCacheStrategy.ALL).error(R.drawable.noteicon).into(holder.coverimg);
Try load it by file name
Use something like string varible so let glide know that the same image loaded before
I had this problem and i fixed it using
recyclerview.setItemViewCacheSize(50);
This way not all old items will be recycled
I have a recyclerview that I want to display images that I have saved in drawables in jpeg. For loading I was using an Async Task, but this doesn't preload or Cache them. I was told to use one of the tools like fresco or glide to do that, but which one can do the Job better?
The most important thing for me is that the app doesn't crash, but it would also be nice to be able to preload certain images already before the View is displayed and afterwards preload as many as memory allows.
You can use Fresco for this. An example for a recycler view that loads images from the network can be found here:
https://github.com/facebook/fresco/blob/master/samples/showcase/src/main/java/com/facebook/fresco/samples/showcase/drawee/DraweeRecyclerViewFragment.java
I have an app that loads content from a database as well as images from the internet. I am using a RecyclerView along with CardView to display my content in a list form.
Each row has an image on the left side and text on the right.
The problem is that the text loads fast but the image takes time to load, so I want the image to continue loading in the background and then load into the ImageView object once loading is complete. I have no idea how to tackle this.
I use Picasso for this situation, but u can also use Glide and many more libraries. The documentation is pretty simple.
Try Picasso:http://square.github.io/picasso/
It's a one liner in onBindViewholder():
Picasso.with(context).load(url).into(viewHolder.imageView);
I am getting URL string of image in one response, Then i am downloading those images and converting tobitmaps then displaying in listview.
Here my question is in future listview items may increase upto 50000,in this case how can i handle data in listview for smooth scroll without giving ANR Exception.Please provide some sample code.
Dont Load All Images At a Time.... It will cause OutOfMemoryException..you can load images in number of pages from URL....
To download images from URL you can use Picasso library...
It helps you to avoid OutOfMemoryException and store cache of images too..
You can use LAZY LOAD... and you can try this code for download images...
Picasso.with(context).load(URL).fit().centerCrop().into(imageView);
Simple answer dont make a listview so big. 50K elements in a single screen is never a good idea in any scenario(web, desktop or mobile). My suggestion is to have some sort of pagination just like in websites. As for the images like #Prag suggested above use lazy loading for showing images. In my app I used Universal Image Loader and find it extremely useful for showing a large number of bitmaps.
In my Listview, i want to load images while scrolling also as Pinterest app does.
I know there are solutions like using UIL and Volley to stop image loading on scroll to avoid lag but then how Pinterest people are handling this situation without any lag?
Anyone has any idea about this?
load images in other thread and cancel thread if image is no longer needed. Load image with using BitmapFactory.Options and inSampleSize. This movie should be helpful http://www.youtube.com/watch?v=pMRnGDR6Cu0