Develop Reference

Higher res images are being zoomed in and cropped in ImageView

I have an image in an ImageView. The ImageView is 40x40 but the actual source image is 80x80 for higher res devices. So, the image was exported at 2x.
However, the image in the ImageView is being zoomed-in on and cropped. Is there any way to prevent this from happening?
Here is my code:
<ImageButton
android:id="#+id/attachment_button"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginLeft="8dp"
android:adjustViewBounds="true"
android:scaleType="fitCenter"
android:src="#drawable/button_mobile_attachment" />

have you tried with scaleType="centerInside"? also adjustViewBounds seems to be unnecessary set, as you have fixed dimens anyway

Fit imageView to image size after resizing it

I am implementing something called InApp messages, now I am trying to fit ImageView to image size after resizing.
This is my imageView:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/constraintLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:layout_marginStart="15dp"
android:layout_marginTop="40dp"
android:padding="6dp">
--other components--
<ImageView
android:id="#+id/middleLayoutImage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/border"
android:padding="5dp"
app:layout_constraintBottom_toTopOf="#+id/middleLayoutText"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/topWrapper"
app:layout_constraintVertical_chainStyle="packed" />
--other components--
</android.support.constraint.ConstraintLayout>
To download img and put into this view I am using Picasso:
Picasso.with(getApplicationContext())
.load(inputurl)
.into(imageView);
Now my activity looks like this:
Before fitting
Now I want to resize it with aspect ratio to width of the parent Layout. I've tried a lot od combinations with no success:
android:scaleType="fitXY" - stretched img
picasso fit().centerCrop() - centerCrop
picasso fit().centerInside() - centerInside
and more combination with android:adjustViewBounds scaleTypes etc.
I want to achieve something like this: Resized correctly - in this case, I've used picasso: .resize(2000,500).centerInside() - but it will work only in this case.. How to do it automatically ?
Thanks in advance for help:)
edit:
ImageView imageView = (ImageView) findViewById(R.id.middleLayoutImage);
String inputurl = "https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSQtqf1EUqH4eQNNqYFbSawpiR5bypfOhvlatgS0mC3Ve1nk2adbw"; //http://www.gatesms.eu/img/android.png";
Picasso.with(getApplicationContext())
.load(inputurl)
.resize(2000,500)
.centerInside()
.into(imageView);

For Picasso to fit your Image correctly you should know the size of your Image. But for this case You do not know the size of the Image then for good UI design you should have a placeholder (An image to show while Picasso is loading another) keep that image in your drawable folder lets call it placeholder and set it as a src or alternatively using Picasso itself like this:
Picasso.with(getActivity())
.load(imageUrl)
.placeholder(R.drawable.placeholder)
.error(R.drawable.error)
.resize(screenWidth, imageHeight)
.fit()
.centerCrop()
.into(imageView);
Now what?
Now because you have another Image in the imageView Picasso now knows the height and width so that It can fit your Image well. But if you do not provide any image then the results are very small images or improperly stretched ones. I have also added an optional error image that will be displaced if Picasso fails to make the request like my be No network Connection you can omit it if you want.
Do not forget the android:adjustViewBounds in XML too.

Images in RecyclerView feels laggy (Using Picasso)

I have a RecyclerView (It is actually a chat). The users can send images and text. The problem is when I scroll it feels laggy because the images are being loaded (If I go down and up, it takes to much time to Picasso to bring the image back again). And I'm using this line of code to do it.
Picasso.with(itemView.getContext())
.load(((ChatMediaMessage) message).getUrl())
.into(imageView);
If I use the resize option is not laggy at all, but the images lose the image ratio obviously.
Picasso.with(itemView.getContext())
.load(((ChatMediaMessage) message).getUrl())
.resize(400, 400)
.into(imageView);
The layout of the ViewHolder looks like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_marginTop="8dp">
<com.stfalcon.chatkit.utils.ShapeImageView
android:id="#id/messageUserAvatar"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_marginRight="8dp" />
<com.google.android.flexbox.FlexboxLayout
android:id="#id/bubble"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="#dimen/message_incoming_bubble_margin_right"
android:layout_toRightOf="#id/messageUserAvatar"
android:orientation="vertical"
app:alignContent="stretch"
app:alignItems="stretch"
app:flexWrap="wrap"
app:justifyContent="flex_end">
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:scaleType="centerInside" />
<TextView
android:id="#id/messageText"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="#id/messageTime"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/messageText"
android:layout_marginLeft="8dp"
app:layout_alignSelf="center" />
</com.google.android.flexbox.FlexboxLayout>
</RelativeLayout>

Don't use adjustViewBounds for dynamically-loaded images, because it will trigger a full relayout after each image completes loading. Set a fixed size to your ImageViews instead, and use centerInside scale mode if you want to preserve aspect ratio, or centerCrop if you prefer to crop the image. This tip applies to any image library.
Furthermore, when the ImageView has a fixed size, Picasso or Glide allows you to resize the image to it automatically, which reduces memory usage and improves performance. For Picasso, use:
Picasso.with(itemView.getContext())
.load(((ChatMediaMessage) message).getUrl())
.fit()
.centerCrop()
.into(imageView);
You can also use centerInside() instead of centerCrop().
Glide has a similar API. It will provide slightly better performance than Picasso because it caches the resized images to disk as well, while Picasso only caches the full-size images to disk and will have to resize them each time they are loaded back from disk.

Have you try Glide? Give it a try. Just add the library on dependencies and only replace the Picasso word.
Is your image size bigger, like 2Mb above? Try resizing or optimizing the image before upload it anywhere.
Is your image JPG? You can use RIOT http://luci.criosweb.ro/riot/
to optimize your JPG/PNG.
Or it's advisable to convert your JPG images into WebP. Android Studio has the built in converter to try. WebP loads faster and smaller in size.

Resizing image with picasso

Hey everyone I have been running into an issue with Picasso. I am trying to load an image from sound cloud but it keeps appearing stretched or very small. Here is my XML
<ImageView
android:id="#+id/album_cover_art"
android:layout_width="300dp"
android:layout_height="200dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="#dimen/fragment_content_item_top_margin"
android:scaleType="centerInside"
android:contentDescription="#string/content_description_image_placeholder"
android:src="#drawable/placeholder" />
I tried to use picasso's resize and center inside but the image appears small.
Picasso.with(getContext()).load(mSelectedTrack.getArtworkURL()).resize(800,300).centerInside().into(mAlbumCoverArt);
Using picasso's resize and center crop maintains the image view size but leads to the image appearing stretched.
Picasso.with(getContext()).load(mSelectedTrack.getArtworkURL()).resize(800,300).centerCrop().into(mAlbumCoverArt);
Any ideas on a way to do this that is easier than writing a function to resize it myself ?

I avoided image stretching using :
.resize(800,0)
Passing 0 as second parameter it preserved the image proportions.
Hope it helps

try this:
for your imageview:
<ImageView
android:id="#id/img"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:adjustViewBounds="true" //add this
android:scaleType="fitCenter" />
And in picasso use .fit().centerCrop()
Picasso.with(getContext()).load(mSelectedTrack.getArtworkURL()).resize(800,300).fit().centerCrop().into(mAlbumCoverArt);

Try setting height or width to fixed and other to wrap content and load Picasso with .fitXY and don't use . resize.

Give a try to Glide.
https://github.com/bumptech/glide
Glide.with(this)
.load(imageUrl)
.centerCrop()
.override(300, 300)
.into(imageView);

Android crop imageview

There is my ImageView
<ImageView
android:id="#+id/image"
android:layout_width="match_parent"
android:layout_height="150dp" />
I load image to this ImageView using Picasso library.
Picasso.with(getActivity()).load(url)
.config(Bitmap.Config.RGB_565)
.into(imageView);
There is problem that there is padding inside ImageView and loaded image.
There is image to show padding:
I use .fit() method to avoid this gap, but image stretches and quality losts.
(You can see that this dark-blue circles is ovals now)
The question is:
What should I do to avoid loosing quality of image and resize it directly to ImageView. I can't add .centerCrop() because left side of image is logical safe-zone. Also I can't change layout_height="150dp" because it will break all my layout.
Anyway thank you!

Look at your ImageView:
<ImageView
android:id="#+id/image"
android:layout_width="match_parent"
android:layout_height="150dp" />
You are forcing the image to stretch to the width of its parent view (the screen maybe?). Try using wrap_content for the width and keeping the height the same. This may cause the image to shrink, but its up to your desired UX.
#stefs found that adding this:
...android:adjustViewBounds="true" />
would help. Check out the post here.
If you want static image sizes, you may have to deal with the padding.