In android mobile we have an default application Market, under submenu there is functionality called all applications. In this, first it shows only ten records in which it will display defalut image and text, then in back ground it will update images. When we scroll down (i.e., end of list) and it shows loading and then it loads next 10, images will load lazily.
How to acheive this senario.
Thanks in Adavance
Jayanth
In this, first it shows only ten
records in which it will display
defalut image and text, then in back
ground it will update images.
I have done this with my ThumbnailAdapter, though I want to rewrite it sometime in the next few months.
When we scroll down (i.e., end of
list) and it shows loading and then it
loads next 10, images will load
lazily.
I have done this with my EndlessAdapter.
Perhaps these will give you some ideas.
Related
I'm using the Drag and Drop GridView flutter package to display a set of images selected via the gallery, when it initially loads, it loads the first 20 even though only 8 are visible, the rest load as we scroll down, however on some devices the 20 loaded, could cause the app to crash.
Is there a way to reduce the number of images loaded on the initial build?
We use a FutureBuilder to get the thumbnails of the images.
I'm trying to replicate the functionality of Facebook's image upload. To briefly describe it you click the Photo button from the main screen of the app you are taken to an image picker that will let you select up to 30 images. Once selected the images load in some kind of list view that allows you to add a caption, remove the image from the list, or do some other Facebook-y things. If you scroll around the list can move very quickly, and if you only have 5-10 images you generally spend little to no time waiting for items to reload.
Right now I have a recycler view and am using Picasso to load the images from disk, resize them, and then display them. This works, but it's not smooth or fast. Even if I only have five or six images loaded they don't come up instantly if I scroll from the bottom back to the top. I have tried increasing the LRU Cache size in Picasso, but that didn't do anything at all. It seems like the scaled image isn't getting cached so it has to be scaled to fit the screen width every time. That's just my guess though.
Any suggestions on how to get this to run more smoothly?
I want to get the images from json and show it into gridview. I see the below link as reference
http://www.androidbegin.com/tutorial/android-json-parse-images-and-texts-tutorial/
It is working for only 10-20 images.But i want to show thousands of images show it into gridview..
and also it is ovescrolled.I mean if u scrolling up, it is scrolling upto first row is disappering(so
background is appering).Plese Help me and how can i solve this issu's
To solve this i would recommend you to break the whole image set into a smaller set and every set contain 20 images, Now you can load first 20 images using any 3rd party image downloading library like Volley,Android Universal image loader etc.
secondly now if user scroll down than download next set of 20 images
logically you need to implement pagination here other wise you face heap issue.
I'm developing an Android app that is used to get Images and texts from the internet using JSON.
I want to display these images and texts in gridview using a lazy loading approach to avoid the out of memory exception.
Say that i need to display 100 items, I want to display only 20 items after opening the activity and when i scroll down, another 20 items will be loaded, and so on.
How can i achieve that?
i have done lazy loading in my one of activity
lazy loading is running perfectly but first time when my screen the second and third position of list is empty but when i scroll the list all items are listing completly in list
i attached screenshot
Please give me some advice! This is the screen when Activity is loading
Yeah, this is because, you are downloading the images in a separate thread. So it will eventually take time to download images one by one. And as the thread download's your images one by one it will update your ListView with the downloaded images. This is the concept of Lazyloading. And as they are being downloaded you are storing it in a cache directory too(if I am right). So unless your image is downloaded you will not be able to see a image in your ListView which is a known fact.