다음 파일들을 수정해주세요.

ios/PublicGallery<닉네임>/Info.plist

(...)
  <key>UIViewControllerBasedStatusBarAppearance</key>
  <false/>
  <key>UIAppFonts</key>
  <array>
      <string>MaterialIcons.ttf</string>
  </array>
</dict>
</plist>

android/app/build.gradle

(...)

project.ext.vectoricons = [
  iconFontNames: [ 'MaterialIcons.ttf' ]
]

apply from: "../../node_modules/react-native-vector-icons/fonts.gradle"