android ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hi

E/AndroidRuntime(1456): android.view.ViewRootImpl$CalledFromWrongThreadException:
Only the original thread that created a view hierarchy can touch its views.

子线程不能更新UI

子线程不直接更新UI，必须通知UI线程（主线程）去更新UI

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原文地址：https://www.cnblogs.com/zengmianhui/p/12634096.html