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Simon Ekizean
963 Points'Cannot resolve symbol', 'cannot resolve method'
In the course "Build a simple Android App" - "Accessing Views in Code: Assigning Variables" I get stuck. On "AppCompatActivity" it's red and says 'Cannot resolve symbol'. On 'findViewById' and 'onCreate' and 'setContentView' it says 'cannot resolve method'.
This is my code:
package com.example.simon.id8;
import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.Button; import android.widget.TextView;
public class MainActivity extends AppCompatActivity { // Declare our View variables private TextView mFactTextView; private Button mShowFactButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Assign the Views from the Layour file to the corresponding variables
mFactTextView = findViewById(R.id.factTextView);
mShowFactButton = findViewById(R.id.showFactButton);
View.OnClickListener listener = new View.OnClickListener() {
@Override
public void onClick(View v) {
//The button was clicked, so update the fact TextView with a new fact
String fact = "Ostriches can run faster than horses.";
mFactTextView.setText(fact);
}
};
mShowFactButton.setOnClickListener(listener);
}
}
1 Answer
Simon Ekizean
963 PointsAndroid Studio
Terence Davis
4,819 PointsTerence Davis
4,819 PointsWhat IDE are you using? I've found that sometimes certain commands or features are depreciated in different IDE's