Develop Reference

Low quality with Glide

When I use Glide to put and image inside an ImageView and then I "zoom in" (with a function that I bound to my ImageView), I see that the image has a low quality.
I already read Glide documentation but I'm not able to solve the problem.
Note: I use Glide inside a ViewPager.
This is what I did following the documentation
Glide
.with(context)
.loadFromMediaStore(uri)
.dontAnimate()
.diskCacheStrategy(DiskCacheStrategy.SOURCE)
.into(imageView);
This is the Manifest.xml
<manifest ...>
<application...>
<meta-data android:name="come.package.glide.MyGlideConfiguration"
android:value="GlideModule"/>
</application>
</manifest >
This is my GlideConfiguration
public class GlideConfiguration implements GlideModule {
#Override
public void applyOptions(Context context, GlideBuilder builder) {
// Apply options to the builder here.
builder.setDecodeFormat(DecodeFormat.PREFER_ARGB_8888);
}
#Override
public void registerComponents(Context context, Glide glide) {
// register ModelLoaders here.
}
}
I also tried doing just
Glide
.with(context)
.loadFromMediaStore(uri).asBitmap().format(DecodeFormat.ALWAYS_ARGB_8888)
But the quality is always low.
Does anybody see where is my error??

Instead of calling
.diskCacheStrategy(DiskCacheStrategy.SOURCE)
try
.diskCacheStrategy(DiskCacheStrategy.RESOURCE)

Android fresco lib , apply custom filter

i'm using fresco to display images to my app. Right now i'm trying to apply some filters to my images but the problem is that the filter library only results Bitmap. But the draweeView.setImageBitmap is deprecated.
I also tried with a post processor like this
MeshPostprocessor meshPostprocessor = new MeshPostprocessor();
meshPostprocessor.setFilter(filters.get(0));
draweeView = (SimpleDraweeView) view.findViewById(R.id.filter_image);
ImageRequest request = ImageRequestBuilder.newBuilderWithSource(image)
.setPostprocessor(meshPostprocessor)
.setResizeOptions(new ResizeOptions(100, 100))
.build();
PipelineDraweeController controller = (PipelineDraweeController)
Fresco.newDraweeControllerBuilder()
.setImageRequest(request)
.setOldController(draweeView.getController())
.build();
draweeView.setController(controller);
and here is the PostProcessor
public static class MeshPostprocessor extends BaseRepeatedPostProcessor {
private AbstractConfig.ImageFilterInterface filter;
public void setFilter(AbstractConfig.ImageFilterInterface filter) {
this.filter = filter;
update();
}
#Override
public String getName() {
return "meshPostprocessor";
}
#Override
public void process(Bitmap bitmap) {
bitmap = filter.renderImage(bitmap);
}
}
so when I click on a filter i just run this
meshPostprocessor.setFilter(colorFilterConfig.get(position));
I tried with the debugger, the code goes through all the methods (setFilter , process etc..) but the image is not changing at all...
What am i missing?

I think you don't need a BaseRepeatedPostProcessor in your case.
A normal BasePostProcessor should be sufficient here.
However, the issue seems to be your custom filter:
#Override
public void process(Bitmap bitmap) {
bitmap = filter.renderImage(bitmap);
}
I suppose it returns a different Bitmap? This does not work in Java / for Fresco.
If your filter can do the processing in place, you can use process(Bitmap bitmap) and directly modify the given bitmap (e.g. bitmap.setPixel(...)).
If you cannot do it in place, you can override process(Bitmap destBitmap, Bitmap sourceBitmap) instead and modify destBitmap.
If your bitmap changes it's size, you can override CloseableReference<Bitmap> process(Bitmap sourceBitmap, PlatformBitmapFactory bitmapFactory). However, in this case make sure to actually use the provided bitmapFactory to create the new bitmap to be efficient.
For more information, take a look at http://frescolib.org/docs/modifying-image.html for more information or check out the JavaDoc for BasePostprocessor.

ok so the way I solved this is by adding a super call on the process like this
#Override
public void process(Bitmap dest, Bitmap source) {
Bitmap filtered = filter.renderImage(source, intensity);
super.process(dest, filtered);
}
i didn't noticed that you have to call super in order for the changes to have effect.

android.graphics.drawable.TransitionDrawable cannot be cast to com.bumptech.glide.load.resource.bitmap.GlideBitmapDrawable

I have loaded remote image to ImageView using below code
Glide.with(context)
.load(imageUrl)
.placeholder(R.drawable.placeholderImage)
.into(holder.wallPaperImageView);
Now I want to get the bitmap from imageview
Bitmap bitmap = ((GlideBitmapDrawable)holder.wallPaperImageView.getDrawable()).getBitmap();
but above line of code throws below exception:
java.lang.ClassCastException:
android.graphics.drawable.TransitionDrawable cannot be cast to
com.bumptech.glide.load.resource.bitmap.GlideBitmapDrawable
How to resolve this?

Use this instead of that:
Bitmap bmp = ((GlideBitmapDrawable)holder.wallPaperImageView.getDrawable().getCurrent()).getBitmap();
or
Glide
.with(this)
.load(a.getAlbum_artwork())
.asBitmap()
.into(new SimpleTarget<Bitmap>(300,300) {
#Override
public void onResourceReady(Bitmap resource, GlideAnimation glideAnimation) {
setBackgroundImage(resource);
}
});

If you wanna get away from resizing use this (talisman):
Glide.with(context)
.load(imageUrl)
.asBitmap() //needed for obtaining bitmap
.placeholder(R.drawable.placeholderImage)
.into(holder.wallPaperImageView);
Then you are free to get bitmap:
Bitmap bitmap = ((BitmapDrawable)holder.wallPaperImageView.getDrawable()).getBitmap();
It's working with Glide 3.8.0
Good luck,'.

If you use Glide v4
private BaseTarget target = new BaseTarget<BitmapDrawable>() {
#Override
public void onResourceReady(BitmapDrawable bitmap, Transition<? super BitmapDrawable> transition) {
//here is your integration by ex: activityReference.get().toolbar.setNavigationIcon(bitmap);
}
#Override
public void getSize(SizeReadyCallback cb) {
cb.onSizeReady(100, 100);
}
#Override
public void removeCallback(SizeReadyCallback cb) {}
};
and after
Glide.with(activityReference.get().getApplicationContext())
.load(url of image)
.apply(new RequestOptions()
.placeholder(R.mipmap.img)
.error(R.mipmap.img)
.diskCacheStrategy(DiskCacheStrategy.ALL))
.apply(circleCropTransform())
.into(target);
if you have warning 'Unchecked method ...' add before method #SuppressWarnings("unchecked")

1 step
Glide.with(c2).load(applicationcalass.list.get(s1).getImguri()).asBitmap().into(t1);
2 step
Bitmap bitmap1=((BitmapDrawable) t1.getDrawable()).getBitmap();

Can I load images synchronously with Glide?

I know it isn't very practical to load bitmaps from the device storage synchronously, but I really have to do it. I haven't figured out any way to do this.

Yes is possible and is in glide documentation.
For example if you need to retrive the Bitmap synchronously you can do:
Glide V3:
Bitmap myBitmap = Glide.with(applicationContext)
.load(yourUrl)
.asBitmap()
.into(500, 500)
.get()
Glide v4:
FutureTarget<Bitmap> futureBitmap = Glide.with(applicationContext)
.asBitmap()
.load(yourURL))
.submit();
Bitmap myBitmap = futureBitmap.get();
Note: This code need to be run in the background or the app will crash.

Using interfaces to load data after image is loaded is a better option.
Create a new file called OnglideLoaded.java file like this:
import android.graphics.drawable.Drawable;
public interface OnGlideLoaded {
void onGlideLoaded(Drawable drawable);
}
Now create setter method for it like this where glide is:
public void setOnGlideLoaded(OnGlideLoaded onGlideLoaded) {
this.onGlideLoaded = onGlideLoaded;
}
Not call it inside Glide Target:
Glide.with(context)
.asBitmap()
.load(uri)
.into(new CustomTarget<Bitmap>() {
#Override
public void onResourceReady(#NonNull Bitmap resource, #Nullable Transition<? super Bitmap> transition) {
icon = resource;
if (onGlideLoaded!=null){
//This will send the image to every registered interface
onGlideLoaded.onGlideLoaded(icon);
}
}
#Override
public void onLoadCleared(#Nullable Drawable placeholder) {
}
});
Now call the interface like this where you want the image:
reference.setOnGlideLoaded(new OnGlideLoaded() {
#Override
public void onGlideLoaded(Drawable drawable) {
imageView.setImageBitmap(drawable);
}
});
Here, reference will be the object where you created the setter method.

Set background resource using Picasso

I know Picasso is an awesome library to play with images.
Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").into(imageView);
with this code i can load an image to an image view.
But is it possible to set a background resource , using Picasso ?

The Javadoc for Picasso's RequestCreator class has the following example:
public class ProfileView extends FrameLayout implements Target {
#Override
public void onBitmapLoaded(Bitmap bitmap, LoadedFrom from) {
setBackgroundDrawable(new BitmapDrawable(bitmap));
}
#Override public void onBitmapFailed() {
setBackgroundResource(R.drawable.profile_error);
}
}

I just had a work around with the Picasso library, I was attempting to set the image as a background as well.
Picasso library made it very easy to do this, there is method by name "FIT()" which will do this job for you.
The one magic line from Picasso is
Picasso.with(context).load(mImageURLS.get(position))
.fit().placeholder(R.drawable.rtrt).into(mImageDownloader);
.fit() does the trick, thanks.