2021-03-02 1.封装网络请求方法

JLChen

2021-03-02 caccf34369c5bb7c26c32f266d6726bde218cad6

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<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
 
  <item
      android:drawable="@color/primaryDark"/>
 
  <item>
    <bitmap
        android:gravity="center"
        android:src="@mipmap/icon"/>
  </item>
 
</layer-list>