Attempt to invoke virtual method on a null object reference virtual method on a null object reference

Question

have some issue when i run this code on android studio app got crash.

package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;

public class FirstScreen extends AppCompatActivity
{

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        TextView textView =  findViewById(R.id.newScreen);
        String value ;
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first_screen);
        Intent intent = getIntent();
        value=intent.getStringExtra("Sending");
        textView.setText(value);
    }
}

enter image description here

You called findViewById before setting content Google serach findViewById returns null — Selvin, Oct 12 '20 at 23:08

score 1 · Accepted Answer · answered Oct 12 '20 at 23:44

1

TextView textView = findViewById(R.id.newScreen); should be after setContentView(R.layout.activity_first_screen);

answered Oct 12 '20 at 23:44

CSG0811

632
5
20

Thanks for the help ,Now its working u were right – Mohammad Yousif Oct 14 '20 at 11:27

Attempt to invoke virtual method on a null object reference virtual method on a null object reference

1 Answers1