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嗨,我想刷新我的 android 应用程序。每次我遇到异常时都很奇怪,我的应用程序一直在爆炸……有这么难吗?这是我的代码:

public void refreshIt(long interv)
{
    thr = new Thread();
    try
    {
        thr.start();
        while(refreshing)
        {

            writeToMe("refresh....");//my method writing msgs to textview, don't mind it
            thr.sleep(1000);
        }

    }
    catch(Exception e){writeToMe(e.getMessage());}
}
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