Android出现java.lang.RuntimeException: Can‘t toast on a thread that has not called Looper.prepare()

今天又是写代码的美好一天>_< 往常运行的好好的程序,今天运行在弹出吐司(Toast)时却出现了java.lang.RuntimeException: Can’t toast on a thread that has not called Looper.prepare(),ε=(´ο`*)))唉    Process: com.qdsg.screen, PID: 23288     java.la
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