Implementing a simple AsyncTask
Let's get into the details now. We will show you the following through source code:
- How to extend
AsyncTask - How to pass constructor arguments
- What methods to override
- How to set up a progress dialog through the
preexecute()method - Where to do the actual work: the
doInBackground()method - How to trigger progress callbacks
- How to override the progress method to report progress
- How to detect the end of work through the
postExecute()method
We will start with how to extend AsyncTask as it uses generics and is worth spending a few minutes on.
GettingPpast the Generics in AsyncTask
The AsyncTask class employs generics to provide type safety to its methods. AsyncTask (through generics) wants you to specify the following ...
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