I have a small problem, as I could convert a url from an image to a bitmap. The url string is obtained through a json that I download with Volley, and I need that bitmap to be able to give a personalized icon to a marker.
I think you can use Picasso Library here, and it will show the image with the given URL dynamically. There is much more benefits of using Picasso. Try that if it helps you.
And also there is no need to download the image to the user. It saves images cache to show the image if user returns in particular time-gap.
Volley supports loading images asynchronously to a bitmap.
Picasso supports loading images asynchronously to a bitmap.
Other image loading libraries may offer similar options, though since you already use Volley and Picasso, you may wish to stick with one of those.
Related
Which is the fastest and best way to get image from server in android
app.
1. Image url
2. base64 format
or any other format which load image very quick as on normal internet speed.
As mentioned here base64 format is %37 larger than normal image. So if you use base64 format, you will have larger image and longer download time. In this case, you need to use normal image url.
To download images as fast as possible, you can use Picasso or Glide.
Just use glide for faster image load in your application because glide uses caching of images and it loads an image after compressing it a little bit. Even Google recommend this library to developers , Google used this library in Gmail.
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/
I'm trying to
Pre-load all my images for a grid/list into a disk cache to use later, so that the images can be displayed under poor network conditions. (Think of it like an offline photo gallery)
The cache would only be flushed on demand, never automatically.
I wish to avoid rolling my own code, and want to leverage Volley to the extent possible.
Is this possible with 100% volley? If not, can it be achieved through any other library?
I have not personally used Volley. So, I'm not sure if image caching mechanism is provided by Volley out of the box. Rather, image-loading specific libraries like Picasso provides very elegant pre-caching mechanism for you to use. If you know the list of image URLs upfront, just call the fetch method to start caching files.
// Returns Random Images always. Use your own source instead.
String[] urls = [
"http://lorempixel.com/400/200",
"http://lorempixel.com/600/400",
"http://lorempixel.com/800/600",
"http://lorempixel.com/300/150",
];
// Prefetch all images
for(String url : urls) {
Picasso
.with(getApplicationContext())
.load(url)
.fetch();
}
Once Picasso fetches all the images, it will be ready for a load() call from Picasso. Cached images will work just fine even if there is no internet connection.
Picasso
.with(getApplicationContext())
.load("http://lorempixel.com/400/200") // Already cached image
.into(yourImageView);
To add Picasso as a dependency of your project, add the following line to gradle.
compile 'com.squareup.picasso:picasso:2.5.2'
I am developing android app that shows an image from URL. For this, I'm using Picasso library and it is working nicely. However, I think its caching time period depends on the headers of the image URL.
I have set Cache-Control:max-age=0 for image URL header and Picasso is only caching for few days and I want to store these images more than few days. Please help me find out the solution.
According to this answer there is no way to tell picasso to use some custom cache period.
Hi i wanted to know is their any library in which we pass the URL and the image-view and it checks whether the images is present on device if not, then fetch image from URL and store to device and bind with the view passed. I tried writing the code but once the view is loaded and image is not fetched the images is never fetched in future unless i uninstall the app , i also tried universal image loader library and asynchronous image loader
Picasso is doing all things what you want.
It loads from internet and cache
It loads from cache
It loads from Local File
Read More Here And Here
Try volley library. you have a NetworkImageView I guess. Which fits your need.