Gson: fromJson() and toJson broken for Camera.Paramteres in Android 9 (android targetSdkVersion 28 and device os 9.0)

[Petrakeas]

library : "com.google.code.gson:gson:2.8.5"
gradle : 'com.android.tools.build:gradle:3.2.1'

The problem occurs when the app is built with compileSdkVersion 28 and runs on an Android 9 device.

The Camera.Parameters object can't be serialized. An already seirialized instance of this object (created when the app was build with compileSdkVersion 27 and stored as a file) is deserialized into an Camera.Parameters object without the private fields set correctly.

Perhaps the problem is related to the behavioral changes of Android 9 mentioned here. In that case, is there a workaround?

[JakeWharton]

You need to write your own type adapter using the public API. You should
never serialize the private members of types you don't control.

On Tue, Nov 13, 2018, 11:17 AM Petros Douvantzis <[email protected]
wrote:

library : "com.google.code.gson:gson:2.8.5"
gradle : 'com.android.tools.build:gradle:3.2.1'

The problem occurs when the app is built with compileSdkVersion 28 and
runs on an Android 9 device.

The Camera.Parameters
https://developer.android.com/reference/android/hardware/Camera.Parameters
object can't be serialized. An already seirialized instance of this object
(created when the app was build with compileSdkVersion 27 and stored as a
file) is deserialized into an Camera.Parameters object without the private
fields set correctly.

Perhaps the problem is related to the behavioral changes of Android 9
mentioned here
https://developer.android.com/about/versions/pie/restrictions-non-sdk-interfaces.
In that case, is there a workaround?

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