1.添加读取手机信息权限。

app/src/main/AndroidManifest.xml

     <uses-permission
         android:name="android.permission.QUERY_ALL_PACKAGES"
         tools:ignore="QueryAllPackagesPermission" />
+    <uses-permission android:name="android.permission.READ_PRIVILEGED_PHONE_STATE" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS" />