I have a list view where I load image with person name. There are around 538 items in the list view. I get the images of persons from a url. Currently I am doing the following:-
Picasso.with(getContext()).load(url).resize(70,70).onlyScaleDown().into(im1);
The images present in the URL are very large in size and loading of some images takes a lot of time and it eats up my memory also while loading. Can some one please help me in loading the images efficiently and fastly.
Example image for one person can be found in the following URL:-
https://theunitedstates.io/images/congress/original/D000626.jpg
You can use onlyScaleDown() to resize
Picasso
.with(context)
.load(imageUrl)
.resize(6000, 2000)
.onlyScaleDown() // the image will only be resized if it's bigger than 6000x2000 pixels.
.into(imageViewResizeScaleDown);
Or you can use fit()
Picasso
.with(context)
.load(imageUrl)
.fit()
// call .centerInside() or .centerCrop() to avoid a stretched image
.into(imageViewFit);
fit() is measuring the dimensions of the target ImageView and internally uses resize() to reduce the image size to the dimensions of the ImageView. There are two things to know about fit(). First, calling fit() can delay the image request since Picasso will need to wait until the size of the ImageView can be measured. Second, you only can use fit() with an ImageView as the target (we'll look at other targets later).
The advantage is that the image is at the lowest possible resolution, without affecting its quality. A lower resolution means less data to be hold in the cache. This can significantly reduce the impact of images in the memory footprint of your app. In summary, if you prefer a lower memory impact over a little faster loading times, fit() is a great tool.
As per the new version of Picasso
Picasso.get().load(galleryList[position].mediaUrl).fit()
.placeholder(R.mipmap.ic_launcher).into(holder?.ivImags)
Related
While loading images using Picasso, the app become too slow due to high pixel size, Is there any option to reduce the pixel size without effecting the quality in android.
For Piccaso You should use .
Picasso.with(context)
.load(YOUR_IMAGE_PATH)
.resize(600, 200) // resize your image to 600 x 200 ratio
.onlyScaleDown() // the image will only be resized if it's bigger than 600x200 pixels.
.into(IMAGEVIEW);
Use :
Picasso
.with(context)
.load(your_image_path)
.fit()
// call .centerInside() or .centerCrop() to avoid a stretched image
.into(imageViewFit);
From Docs:
fit() is measuring the dimensions of the target ImageView and
internally uses resize() to reduce the image size to the dimensions
of the ImageView. There are two things to know about fit(). First,
calling fit() can delay the image request since Picasso will need to
wait until the size of the ImageView can be measured. Second, you
only can use fit() with an ImageView as the target.
The advantage is that the image is at the lowest possible resolution,
without affecting its quality. A lower resolution means less data to
be hold in the cache. This can significantly reduce the impact of
images in the memory footprint of your app. In summary, if you prefer
a lower memory impact over a little faster loading times, fit() is a
great tool.
learn more here
Picasso.with(this)
.load(Image_Path)
.resize(imageView.getWidth(), imageView.getHeight())
.into(imageView);;
I'm having some trouble when uploading high definition pictures in my app.
I have a Grid View and when I add the photo the app crashes stating that its a memory problem.
One solution I did was to decrease the size of the image through a website (https://www.befunky.com/create/resize-image/) but the image gets blurie.
Also used a solution that is present on the official Android developers' website (https://developer.android.com/topic/performance/graphics/load-bitmap.html), unsuccessfully (the app gets too slow and I have the previous result).
I've seen many applications where this is not a issue and I want to learn the way they do it correctly.
Try Picasso, it can load an image into your imageView from your drawable (or url), and its fit() method allows you to reduce the image to the lowest possible resolution, without affecting quality.
Basically, it measures the dimensions of the target ImageView and uses resize() to reduce the image size to the dimensions of your ImageView:
High quality picture in drawable folder:
Picasso.with(context)
.load(R.drawable.image)
.fit()
.into(imageView);
High quality picture from a url:
Picasso.with(context)
.load("www.url.com/image.jpg")
.fit()
.into(imageView);
You can find more details on how to use fit, resizing and scaling with Picasso here.
I'm using picasso to load images in my recycler view adaper but it is taking to much time to load image. Here is my call to load image with picasso.
Picasso.with(hostActivity).load("ImageUrl").fit().centerCrop().into(holder.ImageView);
If I do same thing with asynctask task, image loaded instantly.
Am I doing any thing wrong?
Thanks.
fit() needs to wait for the size of the ImageView to be determined before it can size the image to match, and the size can't be calculated until the end of the layout pass. You might get quicker results by using resize() if you are able to predict reasonable width and height values.
You might also want to look at the Glide library as it takes a different approach to caching that can be quicker than Picasso in some cases, for example instead of caching full size images it caches the resized ones. However, there are many pros and cons to both libraries; although the syntaxes are very similar, some things that work in Picasso will not work in Glide, and vice versa.
What is the best way to resize network images in android to show in android GridView. I've nearly 100 images to show in grid view. Each image is 1024*1024 resolution images. Kindly suggest the bet way to load these images into grid view with out getting out of memory error. Thanks in advance.
You can use Picasso for Image transformations.
http://square.github.io/picasso/
IMAGE TRANSFORMATIONS
Transform images to better fit into layouts and to reduce memory size.
Picasso.with(context)
.load(url)
.resize(50, 50)
.centerCrop()
.into(imageView)
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