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

在Android 77.0的系统中，在子线程更新UI界面会产生如下异常：

android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views:

可以使用Handler等工具将更新信息发送到主界面，然后通过主界面来更新消息即可，亦可通过如下方法来避免：

runOnUiThread(new Runnable() {                    @Override                    public void run() {                      //更新UI消息                    }                });