Is it a good practice to null references to Activity Context, when my Activity finishes? I have 3 AsyncTask\'s, each of them can be running in several instances simultaneously. The update the UI in on
I have two static tables with about 500 records each which provide lookup material for some ListViews in my app. When the app first starts and the tables are created I run a process to populate the ta
In my class, Main extends Activity, I\'ve this: @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) {
I\'m new to Android development and I\'m trying to code a little app which allows me to grab an external JSON file and parse it. I got this to work, however it wont work if I try to execute it in the
hey, i\'m new to android and i\'m trying to code an app which fetches json data off the web, creates a list. if you click on a list item a new activity starts which shows the details of the activity.
This title may seem strange, so let me try to explain what I\'m trying to do. I have several activity classes, each representing a different view in my application. My initial activity class gets load
I\'m looking for a complete example of an activity which uses async task and implements a way to refer to a running async task after the activity is paused (onPause).
Lets say my Activity has a list object containing stuff. This Activity starts off several AsyncTasks. When these tasks finish, they modify this list (add stuff in it for example), in their postExecute
In my app, I show a menu screen immediately to the user and then use an AsyncTask to load somedata from disk. Loading takes about 3 seconds if that\'s all the ap开发者_Python百科p had to do. When the
I currently have a listview that is populated upon creation from a web server. I want it to either poll the database 开发者_如何转开发for updates routinely, or to allow a php script to update it. I wo
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