Only the original thread that created a view hierarchy can touch its views

今天发现一个界面setText 的时候出现了这个问题，看到报错，大致就是界面还没创建呢，就使用seText 了

这个是自己的理解，处理方法就是添加一个延时操作，

                                runOnUiThread(new Runnable() {@Overridepublic void run() {mainActicityCity.setText(cityName);}});

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