I have integrated facebook account kit in my app and it works perfectly fine on devices with higher android versions ( nougat, marshmallw, lollipop etc). On low android api's ( I have tested on huawei h3u10 android 4.2.2 ) it shows the following error when I try to change the country code:
04-25 20:31:04.664 3670-3670/com.chaatgadrive.arif.chaatgadrive E/AndroidRuntime: FATAL EXCEPTION: main java.lang.NullPointerException at android.view.ViewGroup$LayoutParams.(ViewGroup.java:5729) at com.facebook.accountkit.ui.PhoneCountryCodeAdapter.getDropDownView(PhoneCountryCodeAdapter.java:273) at android.support.v7.widget.AppCompatSpinner$DropDownAdapter.getDropDownView(AppCompatSpinner.java:650) at android.support.v7.widget.AppCompatSpinner$DropDownAdapter.getView(AppCompatSpinner.java:644) at android.support.v7.widget.DropDownListView.measureHeightOfChildrenCompat(DropDownListView.java:320) at android.support.v7.widget.ListPopupWindow.buildDropDown(ListPopupWindow.java:1300) at android.support.v7.widget.ListPopupWindow.show(ListPopupWindow.java:646) at android.support.v7.widget.AppCompatSpinner$DropdownPopup.show(AppCompatSpinner.java:800) at android.support.v7.widget.AppCompatSpinner.performClick(AppCompatSpinner.java:436) at com.facebook.accountkit.ui.AccountKitSpinner.performClick(AccountKitSpinner.java:61) at android.view.View$PerformClick.run(View.java:17660) at android.os.Handler.handleCallback(Handler.java:800) at android.os.Handler.dispatchMessage(Handler.java:100) at android.os.Looper.loop(Looper.java:194) at android.app.ActivityThread.main(ActivityThread.java:5433) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:525) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:924) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:691) at dalvik.system.NativeStart.main(Native Method)
I have no clue what is going on. Please help.