Han Changsoo comments

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                                            Han Changsoo

https://github.com/knowm/XChange/pull/4442 seems to fix this

https://github.com/knowm/XChange/pull/4442 fixes 1

I haven't never made the drawable named "shape_bacground". I found "shape_bacground" in the library. (Button.java:166)

![image](https://cloud.githubusercontent.com/assets/6322585/6430503/b688f3e0-c04f-11e4-9c65-337d27976ec3.png) ``` ```

Add `sslUri = "https://www.okx.com"` when you initialize exchange specification.