device overheated by CameraRoll API with FlatList in iOS

[vreality64]

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Environment

  React Native Environment Info:
    System:
      OS: macOS High Sierra 10.13.6
      CPU: (4) x64 Intel(R) Core(TM) i5-6267U CPU @ 2.90GHz
      Memory: 275.75 MB / 16.00 GB
      Shell: 3.2.57 - /bin/bash
    Binaries:
      Node: 8.11.3 - ~/.nvm/versions/node/v8.11.3/bin/node
      Yarn: 1.12.3 - /usr/local/bin/yarn
    SDKs:
      iOS SDK:
        Platforms: iOS 12.1, macOS 10.14, tvOS 12.1, watchOS 5.1
    IDEs:
      Xcode: 10.1/10B61 - /usr/bin/xcodebuild
    npmPackages:
      react: 16.6.1 => 16.6.1
      react-native: 0.57.5 => 0.57.5

Description

If I shows photo image using the CameraRoll API on an iOS device, there is an issue that causes excessive heat. I was profiling directly with Xcode and it was happening when I showed the assets-library picture through the Image component. If shows gallery view a few times, iPhone gets hot enough to notice. Is this a known bug?

If you look at the simple profiling results, the CPU is being used excessively when view renders photos. I think maybe it is the cause.

Reproducible Demo

Here are expo link or Github repository

[react-native-bot]

Can you run react-native info and edit your issue to include these results under the Environment section?

If you believe this information is irrelevant to the reported issue, you may write [skip envinfo] under Environment to let us know.

[vreality64]

I updated environment information. I'm using newest version (0.57.x) 😃

[cpojer]

This issue has been moved to react-native-cameraroll/react-native-cameraroll#14.