CODEWITHSUNDEEP
androidkotlinandroid-annotationskotlin-android-extensions
LONGI
LONGI

Reputation: 11453

How to use AndroidAnnotation @SharedPref with Kotlin

I'm trying to use AndroidAnnotations @SharefPref within kotlin, but Iget following error

org.androidannotations.annotations.sharedpreferences.Pref can only be used on an element that extends org.androidannotations.api.sharedpreferences.SharedPreferencesHelper

What am I doing wrong?

//Interface
@SharedPref(SharedPref.Scope.APPLICATION_DEFAULT)
open interface MyPreferences {
    @DefaultInt(-1)
    fun someIntValue():Int
}

//Fragment
@Pref
lateinit open var sharedPref:CongressPreferences_

//usage within fragment
val get: Int = sharedPref.selectedEventId().get()

Upvotes: 4

Views: 925

Answers (2)

Md. Arif
Md. Arif

Reputation: 518

I just wanna extend on @WonderCsabo 's answer. His answer almost saved me, but not fully.

After adding this to my app label build gradle.

kapt { correctErrorTypes = true }

I wasn't able to run my app.

Then I closed my android studio and then run Android studio again as administrator. Voila! it works like charm.

Thank you @WonderCsabo

Upvotes: 0

WonderCsabo
WonderCsabo

Reputation: 12207

This is due to a bug in the Kotlin annotation processor.
To fix this, you must add correctErrorTypes = true to your kapt block.

kapt {
  correctErrorTypes = true
}

Also make sure you are using the latest Kotlin version (as of this moment: 1.1.3).

Upvotes: 5

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