Lingo-Android

Results 2 issues of Lingo-Android

decode model file failure!

![image](https://user-images.githubusercontent.com/14156592/61523728-7f7fe980-aa47-11e9-9f2f-7919f1b1f5c8.png) 刚调用解析，然后获取modelBytes为空，经过验证，文件路径正确，文件也存在，但是直接就decode model file failure!

pup down 半透明遮罩不能充满屏幕

![screenshot_2018-11-27-14-11-45-737_com oczhkj dec](https://user-images.githubusercontent.com/14156592/49062285-7f2fa580-f24e-11e8-8fa2-f79dea8f9763.png)