thanks everybody! On 2010年12月31日, 下午2时50分, Bob Kerns <[email protected]> wrote: > You need to create the AsyncTask instance on the UI thread, but the > doInBackground() method runs in a separate thread. > > The reason for creating the AsyncTask instance on the UI thread is so > that it can connect to the proper Looper and MessageQueue for that > thread. (It does this through a single static Handler, so it will not > work correctly if you first load the class in a different thread. > That's unnecessarily fragile, in my opinion, but not a problem if you > are using it as intended, as an easy way to move code off the main > thread.) > > On Dec 30, 9:39 pm, water boiled <[email protected]> wrote: > > > > > > > > > I mean that can i create AsycnTask instance not in UI thread? > > > On 12月31日, 下午1时30分, water boiled <[email protected]> wrote: > > > > I mean that can i AsycnTask instance not in UI thread? > > > > On 12月31日, 下午1时24分, water boiled <[email protected]> wrote: > > > > > the AsycnTask document says that:The task instance must be created on > > > > the UI thread. > > > > > why create task instance must be created in UI thread? > > > > > On 12月29日, 上午10时26分, Frank Weiss <[email protected]> wrote: > > > > > > It's difficult to understand what you are asking. What problem are you > > > > > having with AsyncTask.
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