iOS13 适配

modalPresentationStyle 默认是 UIModalPresentationPageSheet，根据自身实际情况，可修改成 UIModalPresentationFullScreen

if (@available(iOS 13.0, *)) {
    viewController.modalPresentationStyle =  UIModalPresentationFullScreen;
}

warning - Launch image are deprecated in iOS13.0. Use a launch storyboard or XIB instead

• 删除 Assets.xcassets 中的 LaunchImage 文件夹
• TARGETS -> General -> App Icons and Launch Images -> Launch Screen File -> LaunchScreen
• Build Settings - > Asset Catalog Launch Image Set Name 删除 LaunchImage
• 删除 ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME
• LaunchScreen.storyboard 中的 image 放 工程目录下，不要放 Assets.xcassets 目录

若还没适配 暗黑模式，可在 info.plist 中添加 UIUserInterfaceStyle 值设置为 Light

获取 DeviceToken 方式变化

  - (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
      if (![deviceToken isKindOfClass:[NSData class]]) return;
      NSMutableString *hexToken = [NSMutableString string];
      const char *bytes = deviceToken.bytes;
      NSInteger count = deviceToken.length;
      for (NSInteger i = 0; i < count; i++) {
          [hexToken appendFormat:@"%02x", bytes[i]&0x000000FF];
      }
  }