修改Utils增加对double保留几位小数

lizhanwei

2020-03-18 59f53119badf0fcb32615b964f6124dcab9b86e5

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<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
 
    <size android:height="20dp" android:width="40dp"/>
    <solid android:color="@android:color/darker_gray"/>
</shape>