I am new to Android so I want to create a background wallpaper app. I made the offline version already which displays images from an array using ImageAdapter.
But I want make it online so that the images will be downloaded and displayed from an online database. What would be the simple and best way to do it? An example would be preferred.
You can use Picasso library. Image loading using Picasso is very easy, you can do it like this way
Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").into(imageView);
and in their website you can get every details.
and another Library is Glide. You can use Glide too for loading image..
Just use Picasso, it's pretty simple and lightweight library with good documentation. You also can save images from network with some hacks.
http://square.github.io/picasso/
Related
I'm a beginner in android and i want to load some images from internet in my app. I heard about libraries such as Glide and Picasso. Can anyone please tell me which library is the best.
In your title you use the word "quickly". Theres no such thing, unless you have a cache implementation. As you pointed out those two libraries help in retrieving images from the web and displaying them into imageView, also support cache features so that images previously displayed can load faster in the near future.
Simple example of Picasso:
Picasso.get().load("http://i.imgur.com/DvpvklR.png").into(imageView);
Want to know more about cache in Picasso? Check out this answer
According to this article here both are really nice to be used , but I would suggest Picasso because it just updated to 3.0 + it is lighter than Glide when it comes to :
library size and method count .
I see a lot of android applications just look like html pages, containing many images here and there. But I don't know usually how these applications get their images to render. Do they get images through url. I found some posts on the internet suggested to use AsyncTask to download image through a HttpURLConnection . But I think AsyncTask is a little bit too complicated which involves too much code. Can anyone recommend me a simple,brief and may be also standard approach to get images to render in android applications?Any help is much appreciated!
Use an image loading library, like Glide (https://github.com/bumptech/glide), Picasso (http://square.github.io/picasso/) or Fresco (https://github.com/facebook/fresco) among others.
I will suggest using glide as it is lightweight and easy to use.
Glide
And also has its own many features.
I want to make a simple gallery app on Android (like Google Photo or any standard gallery app). I've read that the best way to load images is use Glide library (Google recommends to use it). But how can I load multiple images (from sdcard) using Glide? I can use Glide.with(ctx).load(File file)... for loading single image, but I dont know how to load multiple. And what library does Google Photo uses (it works really great both with local and with cloud images)?
So, the only one way to load images with Glide is to load them one by one using Glide.with(ctx).load(File file)...
But it's not a problem to use it even if we have a lot of images - it works perfectly. And it seems that Google Photo app for Android uses Glide, that's why Google recommend using it.
In my project a background service downloads contents from remote database using asynctask. I would like to download all images from urls (saved in database) using Picasso in background service. These images will be used later in my app.
Is there any better solution to do this? or just use the one line code of Picasso in asynctask?
Is there any better solution to do this? or just use the one line code
of Picasso in asynctask?
What do you mean by better? Is it about performance?
If you will have to download a lot of images, you might want to download them on the service. With this, your download will not stopped if the activity is destroyed.
For the library, i never use Picasso. I always use Universal Image Loader but i dont know which one is better. I think the most important feature of those libraries is their capability to cache the images.
UPDATE
For performance, you may want to combine the Picasso/UIL library with PullToRefresh library, especially when your listview/gridview want to load a lot of images.
I'm trying to download image from web. For single image I downloaded successfully. But I want to download more images with multithreading. Any tutorials or leads regarding this will be helpful to me.
As for me, simplest way to do to this - use some third-party library with caching system and post-processing. Most popular is:
1) Picasso from Square team
2) Universal Image Loader
I'm using this library works fine and has a lot of options