Error的解决
android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
Handler的声明尽量放在线程外面,因为如果在线程里面声明,需要Looper.loop Looper.prepare
1.第一个异常是不能再非UI线程更新UI
2.第二个线程是因为在子线程中创建Handler报错