fix(android): return exception message (where it exists)

[dpa99c]

Platforms affected

Android

Motivation and Context

I use this plugin in multiple apps and sometimes users encounter errors when using the camera and ask for support.
To help with user support it would be useful to know the cause of the error by returning the exception message (where it exists) in the error message sent to the plugin error callback.
For example, this can be logged to analytics and used to help diagnose the cause of the error.

Description

Where an exception is raised and the plugin invokes the error callback, append the exception message to the returned error message.

Testing

Tested on Android device by forcing an exception by appending "FOO" to the imageUri, i.e. change line 615 to:

InputStream fileStream = org.apache.cordova.camera.FileHelper.getInputStreamFromUriString(imageUri.toString()+"FOO", cordova);

Resulting error callback message: Error capturing image: open failed: ENOENT (No such file or directory)

Checklist

• I've run the tests to see all new and existing tests pass
• [n/a] I added automated test coverage as appropriate for this change
• Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• [n/a] If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• [n/a] I've updated the documentation if necessary

[erisu]

LGTM 👍

[jcesarmobile]

In other parts of the plugin we are using getLocalizedMessage instead of getMessage, so for consistency I think we should also use getLocalizedMessage here.
I get the exact message since it's not localized.

cordova-plugin-camera/src/android/CameraLauncher.java

Line 944 in ebe0517

callbackContext.error(e.getLocalizedMessage());