Hallo group First of, let me thank you for all the valuable information i have found here so far. I am currently investigating the android platform with my first more elaborate application (like so many of us are doing here).
This leads me to a problem which i am currently facing: I am writing an application which fetches images from the internet and displays them in a a GridView. The loading process is executed multithreaded, so that i can fetch multiple images at the same time (using the concurrency Runnables and ExecutionService). I am displaying placeholders for the images in the grid while they are loading and would like to fade-in the image using an animation when they are done loading. Here is where the problem comes in: When playing the fade-in animation, the animation gets cut of as soon as a new image is done loading and causes a refresh on the Adapter. Since i have to use an android.widget.BaseAdapter to provide the data to display in the GridView, the entire GridView gets refreshed when a new image is loaded and is about to be displayed since I use BaseAdapter.notifyDataSetChanged()to refresh the GridViews content. When an images is done loading it causes a refresh via the notify method and starts its fade animation. The animation playes fine but is immediately cut of when another image is done loading and invokes notifyDataSetChanged() itself, causing a global view refresh and repopulates the entire view. Of course i don't want to display the animation everytime the GridView gets refreshed but only the very first time an image is displayed. What i would need is to make the notifyDataSetChanged() not refresh the entire GridView but only insert/refresh the one new image, leaving the others in place and playing there animation. Maybe the GridView and its Adapter is not the right widget for my task though. Any help would be greatly appreciated and i am looking forward to participate on this board. Smile --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Beginners" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~----------~----~----~----~------~----~------~--~---
