Android facebook-sdk 在土耳其语中崩溃

Question

When I selected Turkish language , I get an error.
No problem in other language, if i delete facebook-sdk fix it. But I have to use facebook-sdk..

java.lang.IllegalArgumentException: CLİCK is not a constant in com.facebook.appevents.codeless.internal.EventBinding$ActionType

repositories {
maven { url 'https://maven.fabric.io/public' }
mavenCentral()}

implementation 'com.facebook.android:facebook-android-sdk:[4,5)'

and Manifest

<meta-data android:name="com.facebook.sdk.ApplicationId" android:value="@string/facebook_app_id"/>

NOTE : İ letter returns from facebook and it has been created by runtime. I did not write any İ letter. Please do not reply as write İ letter as lower case. I already know.

Answer 1

I don't know anything about the facebook-sdk, but I see a dot on top of the uppercase letter I in the word CLİCK, and in a Turkish locale, toUppercase("i") doesn't return "I" , but "İ" . So I bet that somewhere a lowercase "click" is converted to "CLİCK" using toUpperCase() without specifying a sensible locale like eg Locale.ROOT .

As this is a very special "feature" of Turkish case conversions (and no other language, as far as I know), that would explain why this only happens in Turkish language.

Maybe someone with more knowledge on facebook-skd can point you to the place where the case conversion happens and how to repair it.

Answer 2

I encountered the same problem. Workaround is use version 4.33.0 and lower.

implementation 'com.facebook.android:facebook-android-sdk:4.33.0'

UPDATE (12.06.20) There is no crash in the latest Facebook SDK (5.15.3)