Textview xml connection error

Java code

package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

import com.google.firebase.database.DataSnapshot; import com.google.firebase.database.DatabaseError; import com.google.firebase.database.DatabaseReference; import com.google.firebase.database.FirebaseDatabase; import com.google.firebase.database.ValueEventListener;

import java.text.CollationElementIterator;

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    FirebaseDatabase database = FirebaseDatabase.getInstance();
    DatabaseReference myRef = database.getReference();

    myRef.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            // // This method is called once with the initial value and again
            // // whenever data at this location is updated.
            Object value = dataSnapshot.getValue(Object.class);
            textview1.setText.value.toString();
        }

        @Override
        public void onCancelled(DatabaseError error) {
            // // Failed to read value

        }

    });


}

}

xml code

<TextView
    android:id="@+id/textview1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="test" />

This is an error in the code textview1.setText.value.toString(); Is there an error in resource association?ㅠ<

android-studio

2022-09-21 11:38

1 Answers

textview1 = (TextView) findViewById(R.id.textview1);

Where is....

2022-09-21 11:38

If you have any answers or tips

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