java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.Object android.widget.Adapter.getItem(int)' on a null object reference
	at d4.c1.F(SourceFile)
	at d4.c1.R(SourceFile)
	at d4.c1.onClick(SourceFile)
	at android.view.View.performClick(View.java:4793)
	at android.view.View$PerformClick.run(View.java:19971)
	at android.os.Handler.handleCallback(Handler.java:739)
	at android.os.Handler.dispatchMessage(Handler.java:95)
	at android.os.Looper.loop(Looper.java:135)
	at android.app.ActivityThread.main(ActivityThread.java:5669)
	at java.lang.reflect.Method.invoke(Native Method)
	at java.lang.reflect.Method.invoke(Method.java:372)
	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)