How can i reload imageview in thread? - android

I'm trying to display several Images dynamically. After retrieving a url from xml parsing, I convert it to a Bitmap and loaded in image view using setImageBitmap in AsyncTask ,but current url image does not loaded but next url images loaded,whenever call next url,so i want to refresh or reload imageview in AsyncTask?.is it possible? possible please give code for me..
Thanks all

You can use Droid-fu's WebImageView.

Related

Load image from url to Recyclerview

I have an app that loads content from a database as well as images from the internet. I am using a RecyclerView along with CardView to display my content in a list form.
Each row has an image on the left side and text on the right.
The problem is that the text loads fast but the image takes time to load, so I want the image to continue loading in the background and then load into the ImageView object once loading is complete. I have no idea how to tackle this.
I use Picasso for this situation, but u can also use Glide and many more libraries. The documentation is pretty simple.
Try Picasso:http://square.github.io/picasso/
It's a one liner in onBindViewholder():
Picasso.with(context).load(url).into(viewHolder.imageView);

Using volley to populate a fragment

I am working on a simple app and I am having issues understanding how to use volley for something I feel should be an easy task. Currently I have gotten volley to grab a json array that populates a list of images with titles next to them. The problem is I want to be able to press on an item in the list and spawn a new fragment with a larger version of the image in it. This seems like a really basic task, but I can't seem to find the right way to do it. If I grab the full images to create the list view, I run out of memory. I started grabbing thumbnail images, but then when I create the fragment, the view is inflated before the request for the image finishes. What is the right way to do this?
You can specify a placeholder image while Volley downloads your image, and an error image if the download wasn’t successful. In your situation, you can use your thumbnail image as the placeholder image.
The Making Image Request section in this artcle shows the good way to handle image request with Volley.
Sample code:
// Loading image with placeholder and error image
imageLoader.get(Const.URL_IMAGE, ImageLoader.getImageListener(
imageView, YOUR_THUNMBNAIL_IMAGE, R.drawable.ico_error));

How to solve the issue of multiple ImageView in android?

I am developing an application.
Which requires Multiple ImageView in the GridView Layout. When user click on ImageView the Image should open in next activity in full screen.
My problem is when I load multiple ImageView in the screen it doesn't Load. But when I click on any Images it Load Successfully in new Window. Because all the data is running through web-service.
Is there any solution for that?
My Graphical Layout is:
How can I load all the Image URL row wise to reduce the load on server?
Please help me.
Its happening because all the images load at the same time so emulator cant load all the images at the same time at increase the load.

Loading Sign before downloading Image and Setting Image on Image View

I have a listView in which I have text and an image view Now the data is coming from the service in this case text is of some bytes but due to images size imageview populate after some time . for this I want to show loading symbol in in imageview so that in time of downloading user not say that the app is not able to show images. I have implemented all listActivity and adapters concepts and its working fine but the images take time due to which the imageview part shows black area . any help
Here this I want:
In Android we called it lazy list..
this will help you to understood..
1.Lazy loading of images in ListView
2.http://www.technotalkative.com/android-asynchronous-image-loading-in-listview/
For Image issue :
Change in ImageLoader class (if Using Lazy List)
final int stub_id=R.drawable.ic_launcher; //change it to process image
Good Luck
Place a ProgressBar and keep the imageView over the ProgressBar.So the progress bar is visible when there is no image in the image view. Also use lazyList to load image.
You might want to check out Android Query. it's a library that also supports Asynchronous image loading and caching.
Android

Make imageview dynamically load images from latest posts on a website

I have an app and it's main layout has an imageview and a textview. I want the imageview to load whatever image is the thumbnail from the website and the text to load the title of the post on the website. Layout looks like this. Thanks in advance.
I have scoured the internet to no avail, any help is appreciated.
There's nothing 'ready-made' available.
You'll have to:
Find what's the website API (or create one);
make a call to this API to acquire the site data (usually as JSON or XML);
parse that data into meaningful information;
download the image (usually as a Bitmap object);
and set this Bitmap to the ImageView using the method .setImageBitmap(Bitmap);

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