java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.Object android.widget.Adapter.getItem(int)' on a null object reference
	at d4.a1.F(SourceFile)
	at d4.a1.R(SourceFile)
	at d4.a1.onClick(SourceFile)
	at android.view.View.performClick(View.java:5290)
	at android.view.View$PerformClick.run(View.java:21603)
	at android.os.Handler.handleCallback(Handler.java:815)
	at android.os.Handler.dispatchMessage(Handler.java:104)
	at android.os.Looper.loop(Looper.java:238)
	at android.app.ActivityThread.main(ActivityThread.java:6006)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:937)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:798)