I think you mean that one asynctask's background process has to finish before another asynctask's background process can start. This is per design in pre-Donut and in Honeycomb and later. All AsyncTasks use a pool of only one thread. If one asynctasks is 'using' it, others can't and have to wait. If you need a larger pool of threads, use the method *public final AsyncTask<Params, Progress, Result> executeOnExecutor (Executor exec, Params... params) *to execute your background tasks.
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