public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
if(position==0){
startActivity(new Intent("paketadi.A"));
}
if(position==1){
startActivity(new Intent("paketadi.B"));
}
if(position==2){
startActivity(new Intent("paketadi.C"));
}
if(position==3){
startActivity(new Intent("paketadi.D"));
}
}