Troubleshooting

In this section, you will find solutions to some common issues encountered during the integration of the Unico IDCloud SDK into your Flutter applications

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Code Obfuscation

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The obfuscation material is intended to assist developers in overcoming obfuscation issues in their app.

The client's obfuscator may affect the functionality of the SDK, and it is necessary to ensure that it does not obfuscate the SDK code.

Unico disclaims any responsibility for obfuscation conflicts with the SDK.

Obfuscation is a process of transforming bytecode into a form that is less readable by humans, thus making reverse engineering more difficult.

This process involves removing debugging-related information such as variable tables, line numbers, and renaming packages, classes, and methods.

When embedding the Android SDK into the application, failures may occur.

Obfuscation via DexGuard

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When obfuscation is performed using DexGuard, if a failure occurs, use the following rules:

-keep class kotlin.coroutines.**
-keep class kotlinx.coroutines.**

-keep class com.facetec.sdk.** { *; }
-keep class com.acesso.acessobio_android.** { *; }
-keep class io.unico.** { *; }

-keep class br.com.makrosystems.haven.** { *; }
-keep class HavenSDK.**{ *; }
-keep class HavenSDK** { *; }

Obfuscation via ProGuard

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When obfuscation is performed using ProGuard, if a failure occurs, use the following rules:

-keep class kotlin.coroutines.**
-keep class kotlinx.coroutines.**

-keep class com.facetec.sdk.** { *; }
-keep class com.acesso.acessobio_android.** { *; }
-keep class io.unico.** { *; }

-keep class br.com.makrosystems.haven.** { *; }
-keep class HavenSDK.**{ *; }
-keep class HavenSDK** { *; }

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Bitcode Error in App Distribution using Xcode 16

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After the official release of Xcode 16 on September 17, 2024, and its use for app distribution on the AppStore, we noticed a block when using the iOS SDK that signaled the use of Bitcode in two internal dependencies when using Cocoapods as the dependency manager. These dependencies are DeviceProfiling and UnicoSdkLogger. To avoid blocking new releases, you can follow the steps below until a permanent fix is included in a future iOS SDK release:

1. Open the Podfile.

2. Insert the following lines after the post_install do |installer| command and before the last end:

bitcode_strip_path = `xcrun --find bitcode_strip`.chop!
  def strip_bitcode_from_framework(bitcode_strip_path, framework_relative_path)
    framework_path = File.join(Dir.pwd, framework_relative_path)
    command = "#{bitcode_strip_path} #{framework_path} -r -o #{framework_path}"
    puts "Stripping bitcode: #{command}"
    system(command)
  end

  framework_paths = [
    "Pods/unicocheck-ios/DeviceProfiling.xcframework/ios-arm64/DeviceProfiling.framework/DeviceProfiling",
    "Pods/unicocheck-ios/UnicoSdkLogger.xcframework/ios-arm64/UnicoSdkLogger.framework/UnicoSdkLogger"
  ]

  framework_paths.each do |framework_relative_path|
    strip_bitcode_from_framework(bitcode_strip_path, framework_relative_path)
  end

2.1. If there is already some code, insert it before the existing section;

2.2. If Bitcode has already been removed manually, add the paths explicitly mentioned in framework_paths.;

1. If the post_install do |installer| command is not present in the Podfile, insert it as follows before the last end:

post_install do |installer|
bitcode_strip_path = `xcrun --find bitcode_strip`.chop!
  def strip_bitcode_from_framework(bitcode_strip_path, framework_relative_path)
    framework_path = File.join(Dir.pwd, framework_relative_path)
    command = "#{bitcode_strip_path} #{framework_path} -r -o #{framework_path}"
    puts "Stripping bitcode: #{command}"
    system(command)
  end

  framework_paths = [
    "Pods/unicocheck-ios/DeviceProfiling.xcframework/ios-arm64/DeviceProfiling.framework/DeviceProfiling",
    "Pods/unicocheck-ios/UnicoSdkLogger.xcframework/ios-arm64/UnicoSdkLogger.framework/UnicoSdkLogger"
  ]

  framework_paths.each do |framework_relative_path|
    strip_bitcode_from_framework(bitcode_strip_path, framework_relative_path)
  end

Source: Bitrise, Xcode 16 release notes, Stackoverflow.

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