[Android] No return value when use saveAs and press back

[deandreamatias-worldline]

Plugin version: 0.2.8 Platform: Android

Flutter doctor

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Minimal code example: example of repo

Current Behavior:

When try save a file with method saveAs on Android and press on back button, the method doesn't return anything. This not allow that developer control this use case.

Desired Behavior:

When try save a file with method saveAs on Android and press on back button, the method should be return something to allow developer control this use case.

Steps To Reproduce:

1. Execute example code from repo
2. Press on button Open file manager
3. Press Android back button
4. Error: doesn't return anything

Aditional information:

I think in two ways to solve this: Add a custom Exception like EmptyException or return success with null/empty path. Code related:

    private fun completeFileOperation(uri: Uri) {
        CoroutineScope(Dispatchers.Main).launch {
            try {
                saveFile(uri)
                val fileUtils = FileUtils(activity)
                result?.success(fileUtils.getPath(uri));
                //result?.success(getRealPathFromUri(activity, uri))
            } catch (e: SecurityException) {
                Log.d(TAG, "Security Exception while saving file" + e.message)

                result?.error("Security Exception", e.localizedMessage, e)
            } catch (e: Exception) {
                Log.d(TAG, "Exception while saving file" + e.message)
                result?.error("Error", e.localizedMessage, e)
            }
        }
    }

[incrediblezayed]

It'll be huge help if you add it and create a PR, I'm unfortunately extremely busy these days🥲

[deandreamatias-worldline]

It'll be huge help if you add it and create a PR, I'm unfortunately extremely busy these days🥲

From Worldline, we will try to implemented a solution for this. Do you have any advise or recommendation?

[incrediblezayed]

@deandreamatias-worldline go with your latter solution (result.success with an empty path)

[Javidroid]

Just made a proposal for the solution, but returning null instead of empty path.

The important change is in Dialog.kt (explained in PR). Other changes are merely format and indentation corrections, so feel free to pick or not as many changes as you will

https://github.com/incrediblezayed/file_saver/pull/79

[incrediblezayed]

Hi, merged, thanks a lot