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);;
Related
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 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
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)
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)
If I am using Picasso's fit() method in loading images from online, do I have to consider using BitmapFactory.Options.inSampleSize options to reduce the size of an image? I read from other stackoverflow's question (Here) that:
You can also make use of the BitmapFactory.Options.inSampleSize
options to reduce the size of an image while it is loaded, rather than
loading in the entire image and then creating a small copy, which
wastes time and memory.
Do I have to do it after using fit()? Or it is already done by Picasso?
Thanks a lot.
Both fit() and explicit calls to resize() (or resizeDimen) will use inSampleSize automatically when it is appropriate to do so.
Because inSampleSize should be a power of two for best performance and quality, your image needs to be at least twice as large as the target size for this to occur.