I have 3 URLs on gridview and only 2 of the 3 images load into the ImageView.
I am using Picaso:
Picasso.with(c).load(imageUrl).placeholder(R.drawable.progress_animation).fit().centerCrop().into(ivPicture);
I have also tried to skip caching:
Picasso.with(c).load(imageUrl).placeholder(R.drawable.progress_animation).fit().centerCrop().memoryPolicy(MemoryPolicy.NO_CACHE, MemoryPolicy.NO_STORE).into(ivPicture);
Additional Info of image:
Width 2048 / Height 1371 pixels
File size = 224KB
File format is JPG
When I use Picasso's .resize(h w)to a lower the resolution eg: resize (100 100) for testing the image is downloaded but the aspect ration is not kept as some images will have a 9:6 ratio or vice versa 6:9 or a perfect square 5:5 and therefore I do not want to resize any images to a fixed ratio instead I use .fit().centerCrop() which works very well except for this 1 high-res image, Picasso just loads on the placeholder endlessly without any errors, I can understand if the pixels are too many but the file size is quite small in size I don't know why Picasso is struggling to download a +/- 200KB image.
Is there a way for Picasso to compress images over certain pixels perhaps?
Picasso can not process very big images because will receive out of memory .You must to do image transformation inside native code .Not in java
Related
I'm implementing a RecyclerView with a grid layout where in each grid element there is an ImageView in which Glide should load an image taken from and API.
The API returns images of varying dimensions but mostly lage files, and gives the following information about each image:
width and height
size and format (jpg/png)
original size url
thumbnail size url
The thumbnail is way too low quality to be used.
It allows me to filter for under or above a specific resolution, but if I do that I end up missing on the most interesting images. I want to be able to download a compressed version of any image, can glide do that? Is there a workaround to speed up the loading of such big images?
I tought of allowing better quality of wifi networks but I would like to cover all cases. Thanks.
I know that ,according to android docs, that if you have a big image. Then you scale it down to size of the image view you are loading it to (using the decodeResources and Options class).
Now my question is, lets say you want to load background picture and the source image is of similar size, do you just load the image? Or do you actually scale it down a bit and then using the FITXY to stretch it?
I am trying to avoid Out Of Memory exceptions here
Thank you
I load about images from about 30 different URLs into a ListView using Picasso. Some of the images are small, some of them are quite large (>3MB).
When I think of reducing the images using the Picasso method .resize(width, height) I dont know the original ration of the image I downloaded.
How could I possible know the dimensions of the downloaded (original) image in order to set the "new dimensions" or the resized image in the correct/appropriate relation?
Thanks
Whenever I try to show large size(1 MB) bitmap in imageview, system throw OutOfMemory exception.
If I place 7-8 MB image, gallery can easily show that image.
Just want to know How device default gallery is able to show large image in easy way?
Which mechanism is used by device gallery?
Generally speaking, they subsample the image. A 1MB PNG or JPEG file will be much higher resolution than the screen, and so it is wasteful to load the whole image in. Subsampling allows you to load the image in much closer to the actual size of the ImageView you will use, allowing it to fit in memory better. A simple approach to subsampling involves using inSampleSize on BitmapFactory.Options; Dave Morrissey's SubsamplingScaleImageView offers pinch-to-zoom and such while peforming subsampling (note: I have not tried this component, as I just ran across it a minute ago).
I have a big image(about 2Mb 1024 * 540 ARGB8888) which is got via net. This image will be shown in a ImageView which is 800px width and 400px height in CENTER_CROP scale type. And there are 12 this kind of ImageView in a listview.
My question is:
Does android load the whole image into memory in CENTER_CROP mode cause it is very slow when I slide the listview. Maybe I should clip the image before setImageBitmap()? Which is the efficient way?
Read the information from the link bellow. It will help you better to understand how to work with bitmaps in android and even in ListView. You should cash images so you will not download them anytime the ListView is refreshing.And yes,android loads all the image and after that centers it and crops,what you should do is to load in memory only a thumbnail of the all image and display it and not all the image. And as i wrote, you should cash them.
Android Bitmap managing