增加3秒云服务器连接检测，连不上服务器的时候不刷新数据

wxr

2024-04-12 a155c6ce1911e995d136f08b409dd0861706a3f8

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<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="ic_launcher_background">#2C3E50</color>
</resources>