computeValuesWithHarfbuzz -- need to force to single run
或者
android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views
子线程不可以直接修改界面的内容，如果要修改界面可以利用消息机制Handler，将写在子线程的内容写到Handler中。具体可参考一下代码片段
