I need help, for onclick on recyclerview and open new actity, im clicked in item list close app and logcat error is: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.content.Context.getPackageName()' on a null object reference
My code:
@Override
public void onBindViewHolder(final estadoView estadoView, final int i) {
final Estado estado = estadoList.get(i);
estadoView.txtnombreMostrar.setText(estado.getStateName());
estadoView.txtnombreMostrar.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(context, Invernadero.class);
context.startActivity(intent);
} });
}
And my public class is:
public class estadoView extends RecyclerView.ViewHolder {
private TextView txtnombreMostrar;
RelativeLayout parentLayout;
public estadoView(@NonNull View itemView) {
super(itemView);
txtnombreMostrar = itemView.findViewById(R.id.txtNombreMostrar);
}
}
whats is the problem? Im search in web, in forums, but im not solve my problem
It seems that you've a context issue, but as you didn't provide how did you get the context, for now replace it in your view listener with v.getContext()
as below:
@Override
public void onBindViewHolder(final estadoView estadoView, final int i) {
final Estado estado = estadoList.get(i);
estadoView.txtnombreMostrar.setText(estado.getStateName());
estadoView.txtnombreMostrar.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(v.getContext(), Invernadero.class);
v.getContext().startActivity(intent);
} });
}
check your context when start a new Intent, where you get the context, maybe the context still null or not assigned yet
java.lang.String android.content.Context.getPackageName()
i'm sure the context is null
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