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Android Build an Interactive Story App Intents and Multiple Activities Putting Data in an Intent

James Thomas
James Thomas
6,452 Points

"cannot be converted to a string"

Can anyone tell me what on earth I'm doing wrong please?

Code is attached.

Error I get is as the title shows on the intent.addExtra(... line.

I have tried intent.addExtra("FUEL_LEVEL", fuelLevel)

I have also tried intent.addExtra("FUEL_LEVEL", 0)

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class LaunchActivity extends AppCompatActivity {

    public Button launchButton;
    public int fuelLevel;

    protected void onCreate(Bundle savedInstanceState) {

        // fuelLevel is set elsewhere.
        // Code ommitted for brevity!

        launchButton = (Button)findViewById(R.id.launchButton);
        launchButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                // Add your code in here!
                Intent intent = new Intent(LaunchActivity.this, FlightActivity.class);
                intent.addExtra("FUEL_LEVEL", 0);

2 Answers

Giovanni Esposito
Giovanni Esposito
7,830 Points

Hi James,

To add extended data to the intent you should use putExtra.

Try using intent.putExtra("FUEL_LEVEL", 0);


James Thomas
James Thomas
6,452 Points

Ha! Silly mistake. Thank you!

Ben Jakuben
Ben Jakuben
Treehouse Teacher

I thought I added a test looking for "addExtra()" because that is definitely a common mistake! Glad you got some help here.