multithreading - Android Thread makes the UI blank screen -

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i have written thread in application. when thread starts running, ui screen becomes blank. how can avoid this?

public class settickertext extends thread {     @override     public void run()     {         while(true)         {             systemclock.sleep(25000);             log.i("map", "after wait");         }     }

it's going (don't have compiler near me):

new settickertext().start()

essentially, when tell thread object start, spins new thread, invokes run you. you're doing calling run ui thread, other function, it's blocking ui thread returning


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