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

Posted by rida hodroj
rida hodroj
Courses Plus Student 1,016 Points

the error in intent.putStringExtra("FUEL_LEVEL",mFuelLevel);

there is a compiler error?

3 Answers

Steve Hunter
Steve Hunter
57,712 Points

Hi Rida,

You need to put that line of code after the declaration of the intent but before the startActivity():

      public void onClick(View v) {
        // Add your code in here!
        Intent intent = new Intent(LaunchActivity.this, FlightActivity.class);
        intent.putExtra("FUEL_LEVEL", mFuelLevel); // add it here
        startActivity(intent);
      }
rida hodroj
rida hodroj
Courses Plus Student 1,016 Points

thank you for your time!

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

public class LaunchActivity extends Activity {

  public Button mLaunchButton;
  public int mFuelLevel;

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

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

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

the same problem bro.

Steve Hunter
Steve Hunter
57,712 Points

Yes, you are using the intent variable before you have declared it.

Move the line that starts with intent (lowercase) below the line that declares it, starting with Intent (uppercase). The lowercase intent is an instance of Intent that you create using Intent intent = new Intent() so you can't use intent (lowercase) until after that line.

Make sense? 

        Intent intent = new Intent(LaunchActivity.this, FlightActivity.class);
        intent.putExtra("FUEL_LEVEL", mFuelLevel); // add it here

Steve.

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Hi Rida,

Another method is putExtra:

        intent.putExtra("FUEL_LEVEL", mFuelLevel);

That should work for you.

Steve.

rida hodroj
rida hodroj
Courses Plus Student 1,016 Points

./LaunchActivity.java:23: error: cannot find symbol intent.putExtra("FUEL_LEVEL",mFuelLevel); ^ symbol: variable intent 1 error

thank you but it still not work

Steve Hunter
Steve Hunter
57,712 Points

If it can't find the symbol, then the intent hasn't been declared.

rida hodroj
PLUS
rida hodroj
Courses Plus Student 1,016 Points
rida hodroj
rida hodroj
Courses Plus Student 1,016 Points

thank you Steve Hunter!

Steve Hunter
Steve Hunter
57,712 Points

No problem. :-)