I am using Picasso library to load image from url. The code I used is below.
Picasso.with(getContext()).load(url).placeholder(R.drawable.placeholder)
.error(R.drawable.placeholder).into(imageView);
What I wanna do is to get the image that loaded from url. I used
Drawable image = imageView.getDrawable();
However, this will always return placeholder image instead of the image load from url. Do you guys have any idea? How should I access the drawable image that it's just loaded from url.
Thanks in advance.
This is because the image is loading asynchronously. You need to get the drawable when it is finished loading into the view:
Target target = new Target() {
#Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
imageView.setImageBitmap(bitmap);
Drawable image = imageView.getDrawable();
}
#Override
public void onBitmapFailed(Drawable errorDrawable) {}
#Override
public void onPrepareLoad(Drawable placeHolderDrawable) {}
};
Picasso.with(this).load("url").into(target);
mImageView.post(new Runnable() {
#Override
public void run() {
mPicasso = Picasso.with(mImageView.getContext());
mPicasso.load(IMAGE_URL)
.resize(mImageView.getWidth(), mImageView.getHeight())
.centerCrop()
.into(mImageView, new com.squareup.picasso.Callback() {
#Override
public void onSuccess() {
Drawable drawable = mImageView.getDrawable();
// ...
}
#Override
public void onError() {
// ...
}
});
}
});
Related
I have used Picasso to load an image from my company's CDN into a ImageView:
ImageView imgView;
//...
Picasso.with(context).load(Uri.parse(url)).into(imgView);
But now I need load an image as a layout background:
RelativeLayout theLayout;
//...
Picasso.with(context).load(Uri.parse(url)).into(...);
Is it possible with Picasso? If not, should I use a ImageView instead of Relativelayout?
you can use glide to download bitmap and set it as background from any layout.
Glide
.with(getApplicationContext())
.load("https://www.google.es/images/srpr/logo11w.png")
.asBitmap()
.into(new SimpleTarget<Bitmap>(100,100) {
#Override
public void onResourceReady(Bitmap resource, GlideAnimation glideAnimation) {
Drawable dr = new BitmapDrawable(resource);
theLayout.setBackgroundDrawable(dr);
// Possibly runOnUiThread()
}
});
but the better way is to use imageView on top of relativelayout and make it match_parent and show image on this imageview. this will help you directly use glide or picaso to load image in image view without memory errors.
Picasso.with(getActivity()).load(your url).into(new Target(){
#Override
public void onBitmapLoaded(Bitmap bitmap, LoadedFrom from) {
yourlayout.setBackground(new BitmapDrawable(context.getResources(), bitmap));
}
edit:
you may need to override following methods as well
#Override
public void onBitmapFailed(final Drawable errorDrawable) {
Log.e("TAG", "Failed");
}
#Override
public void onPrepareLoad(final Drawable placeHolderDrawable) {
Log.e("TAG", "Prepare Load");
}
}
Yes. You can use Picasso for this. Please check following code :
Picasso.with(getActivity()).load(Uri.parse(url)).into(new Target(){
#Override
public void onBitmapLoaded(Bitmap bitmap, LoadedFrom from) {
relativeLayout.setBackground(new BitmapDrawable(context.getResources(), bitmap));
}
#Override
public void onBitmapFailed(final Drawable errorDrawable) {
Log.d("TAG", "FAILED");
}
#Override
public void onPrepareLoad(final Drawable placeHolderDrawable) {
Log.d("TAG", "Prepare Load");
}
})
I'm using target as callback mechanism (with Picasso).
private Target target = new Target() {
#Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
// loading of the bitmap was a success
// TODO do some action with the bitmap
}
#Override
public void onBitmapFailed(Drawable errorDrawable) {
// loading of the bitmap failed
// TODO do some action/warning/error message
}
#Override
public void onPrepareLoad(Drawable placeHolderDrawable) {
}
};
Picasso
.with(context)
.load(...)
.into(target);
I want to load placeholder if bitmap fails to load, here:
#Override
public void onBitmapFailed(Drawable errorDrawable) {
}
My drawable placeholder is located locally in res/drawable folder.
Which is the best way to do the convertion from DRAWABLE to BITMAP?
FIRST WAY, (Alot of people suggests on SO this way):
Bitmap placeholderIcon = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.placeholder);
SECOND WAY, (I think it should be more memory effiecient)
#Override
public void onBitmapFailed(Drawable errorDrawable) {
errorDrawable = getResources().getDrawable(R.drawable.poster_placeholder);
Bitmap placeholderIcon = ((BitmapDrawable) errorDrawable).getBitmap();
}
I am trying to load an image:
Picasso.with(SelectActivity.this).load(picture).into(new Target() {
#Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
bmp = bitmap;
findViewById(R.id.facebookButton).setEnabled(true);
continueToEditing();
}
#Override
public void onBitmapFailed(Drawable errorDrawable) {
findViewById(R.id.facebookButton).setEnabled(true);
}
#Override
public void onPrepareLoad(Drawable placeHolderDrawable) {
}
});
picture is a valid string to a reachable, valid JPEG image. I've got everything inside a try/catch block and I've got breakpoints on onBitmapLoaded, onBitmapFailed, and try/catch's catch block.
However, none of this is called. There is also nothing in logcat related to this, too. What am I doing wrong?
Try keeping a strong reference to the Target object as a class variable and give it a try.
E.g.
Target target;// Class variable
//Now define this on your onCreate method
target = new Target() {
#Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
bmp = bitmap;
findViewById(R.id.facebookButton).setEnabled(true);
continueToEditing();
}
#Override
public void onBitmapFailed(Drawable errorDrawable) {
findViewById(R.id.facebookButton).setEnabled(true);
}
#Override
public void onPrepareLoad(Drawable placeHolderDrawable) {
}
});
//Now set the target on the Piccaso load LOC
Picasso.with(SelectActivity.this).load(picture).into(target);
I need to show picture in ImageView and download that to local folder. Using Picasso library. And when image is loading I want to show ProgressBar of downloading.
Picasso.with(mContext)
.load(MYurl.BASE_URL + "/" + getItem(position).getImgThumb())
.into(viewHolder.asanaImg);
please try the following picaso callback function and save bitmap to locally folder
Picasso.with(getContext()).load(url).into(new Target() {
#Override public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
// cache is now warmed up
}
#Override public void onBitmapFailed(Drawable errorDrawable) { }
#Override public void onPrepareLoad(Drawable placeHolderDrawable) { }
});
I am working on demo application in which I am using Picasso library v2.5.2. It is working fine on all android operating system version, but not in lollipop.
Image whose size is 130KB which is not loading for me. Images whose size is less are loading correctly.
Here is my code for downloading bitmap and set on imageview.
target = new Target() {
#Override
public void onPrepareLoad(Drawable drawable) {}
#Override
public void onBitmapLoaded(Bitmap bitmap, LoadedFrom arg1) {
if(bitmap != null) {
imageView.setImageBitmap(bitmap);
}
}
#Override
public void onBitmapFailed(Drawable drawable) {}
};
Picasso.with(this).load(URL).into(target);
I'm not sure what extra stuff I have to do with this so that I will work on lollipop also or this is bug in lib ?
It's a known problem. The problem is that Picasso keeps a weak reference for the Target. To get it working you need to make it strong, by storing a Target as a tag of view, for example.
target = new Target() {
#Override
public void onPrepareLoad(Drawable drawable) {}
#Override
public void onBitmapLoaded(Bitmap bitmap, LoadedFrom arg1) {
if(bitmap != null) {
imageView.setImageBitmap(bitmap);
}
}
#Override
public void onBitmapFailed(Drawable drawable) {}
};
imageView.setTag(target);
Picasso.with(this).load(URL).into((Target) imageView.getTag());
EDIT:
I suggest you to use Glide, it's very similar to Picasso, and also recommended by Google. And as you can see in the end of this thread, the original developer solves this BitmapFactory problem by using extra buffer.
Why would you use a Target if you only need to load the image into the ImageView? Just use this:
Picasso.with(this).load(URL).into(imageView, new Callback()
{
#Override
public void onSuccess()
{
//Dimiss progress dialog here
}
#Override
public void onError()
{
//And here
}
});
For documentation look here.
Picasso.with(this).load("http://webneel.com/wallpaper/sites/default/files/images/04-2013/island-beach-scenery-wallpaper.jpg").placeholder(R.mipmap.ic_launcher).fit().into(imageView, new Callback() {
#Override public void onSuccess()
{
}
#Override public void onError()
{
}
});
fit() will help you to load image.And use android:adjustViewBounds="true" in your ImageView in xml.