[camera_avfoundation] ios saving path

[ivan-vanyusho]

Description

Changed iOS file storage path from documentDirectory to temporaryDirectory to ensure consistency with Android where files are stored in cache directory.

Changes

• iOS now uses temporaryDirectory instead of documentDirectory for consistency with Android

Code changes

// Before:
let documentDirectory = FileManager.default.urls(
      for: .documentDirectory,
      in: .userDomainMask)[0]

// After:
let documentDirectory = FileManager.default.temporaryDirectory

Issues

flutter/flutter#166933

Pre-Review Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
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• I linked to at least one issue that this PR fixes in the description above.
• I updated pubspec.yaml with an appropriate new version according to the pub versioning philosophy, or I have commented below to indicate which version change exemption this PR falls under¹.
• I updated CHANGELOG.md to add a description of the change, following repository CHANGELOG style, or I have commented below to indicate which CHANGELOG exemption this PR falls under¹.
• I updated/added any relevant documentation (doc comments with ///).
• I added new tests to check the change I am making, or I have commented below to indicate which test exemption this PR falls under¹.
• All existing and new tests are passing.

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[flutter-dashboard]

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[gemini-code-assist]

Code Review

This pull request correctly changes the iOS file storage path from documentDirectory to temporaryDirectory to align with Android's behavior, improving cross-platform consistency. I have one suggestion to improve code clarity by renaming a variable that became misleading due to this change.

[stuartmorgan-g]

Thanks for the submission! This will need the remaining items in the checklist addressed before it moves forward with review. If you have any questions about completing those steps that aren’t addressed in the linked documentation, please let us know.

[gemini-code-assist]

Code Review

The pull request updates the iOS camera plugin to store captured pictures and videos in the system's temporaryDirectory instead of the application's documentDirectory. This change aligns the iOS behavior with Android's cache directory usage. The CHANGELOG.md has been updated to reflect this as a breaking change, and the pubspec.yaml version has been incremented accordingly.

[stuartmorgan-g]

This still needs tests before it can be reviewed, per the checklist.

[stuartmorgan-g]

In what scenario specifically are existing applications broken by this change? What action do package clients need to take?

If this does in fact need to be a breaking change, it will require correct versioning, and a cascading breaking change to camera, so would need significant discussion.

[gemini-code-assist]

Code Review

This pull request successfully updates the iOS file storage path for camera pictures and videos from the application's documentDirectory to the temporaryDirectory, aligning with Android's cache directory usage for consistency. The change is well-supported by a new test case that verifies the updated storage location. The CHANGELOG.md and pubspec.yaml files have been updated appropriately.

[gemini-code-assist]

The expectedPath is hardcoded as "/tmp/camera/pictures/". While this is correct for the current implementation, it could be more robust to derive this path dynamically within the test, perhaps by calling the same utility function that constructs the path in DefaultCamera.swift (if exposed or mockable), or by inspecting FileManager.default.temporaryDirectory and appending the known subpaths. This would make the test less brittle if the subfolder structure changes in the future.

[hellohuanlin]

iOS now uses temporaryDirectory instead of documentDirectory for consistency with Android

I don't see why we want this "consistency". Apple's recommendation is to use documentDirectory for user generated files (so that it could be exported when connected to mac).

To fix the broken file, we could either (1) save to temp directory first, and move to document directory once done, or (2) save to document directory, and delete if error happens.