允许使用明文本连接(非https)

AndroidManifest.xml    <application
        android:name="com.code369.veclib.EasyApplication"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher"
        android:supportsRtl="true"
        android:usesCleartextTraffic="true"        
        android:theme="@style/AppTheme">