Xiao

MIUI官方明确表示取消了开发者对TYPE_TOAST的支持（[7、为什么WindowManager.addView TYPE_TOAST不能显示自定义Toast](http://dev.xiaomi.com/docs/appsmarket/technical_docs/adaptation_FAQ/)）。经测试可以使用`TYPE_APPLICATION_PANEL`，仍无需`SYSTEM_ALERT_WINDOW`权限。

@luke-here There are no 9.0 devices around me. I've run my demo on the AVD 9.0 device, but it didn't occur your problem. I'm going to do more research when...

父控件可滑动需要监听滑动并调用`.correctOffsetWhenContainerOnScrolling()`

可以🙃

What's the specific scenario when this crash happened?

Show me your xml or java code you used, please

@UltFlash 你按下和滑动气泡显示是正常的吗？只有抬手才会报错吗？报错几率有多大？

@VankaIn I guess you want to make the Bubble disappearing, try this: ```xml app:bsb_max="400" app:bsb_min="0" app:bsb_section_count="4" app:bsb_section_text_position="below_section_mark" app:bsb_show_section_mark="true" app:bsb_show_section_text="true" app:bsb_show_thumb_text="true" app:bsb_thumb_radius="10dp" app:bsb_thumb_text_size="18sp" app:bsb_touch_to_seek="true"/ ``` It has no chance to throw...

以现在的信息无法定位异常。请问使用场景是什么？

从日志来看，父容器RelativeLayout调用measureChildHorizontal的时候，BubbleSeekBar的实例是null。你在手机上多次测试看能不能复现这个问题。