java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.Object android.widget.Adapter.getItem(int)' on a null object reference
	at c4.c1.F(Unknown Source:167)
	at c4.c1.R(Unknown Source:18)
	at c4.c1.onClick(Unknown Source:0)
	at android.view.View.performClick(View.java:7509)
	at android.view.View.performClickInternal(View.java:7486)
	at android.view.View.access$3600(View.java:841)
	at android.view.View$PerformClick.run(View.java:28709)
	at android.os.Handler.handleCallback(Handler.java:938)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loop(Looper.java:236)
	at android.app.ActivityThread.main(ActivityThread.java:8061)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:656)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:967)