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Android Runnable 用法Runnable派生你的子类，重载run（）方法。然后调用View.post（myRunnableObj）即可把你的Runnable对象增加到UI线程中运行。boolean android.view.View .post（Runnable action） Causes the Runnable to be added to the message queue. The runnable will be run on the user interface thread.Parameters:
action The Runnable that will be executed.
Returns:
Returns true if the Runnable was successfully placed in to the message queue. Returns false on failure, usually because the looper processing the message queue is exiting.