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Start your free trialDarnell Cephus
4,208 PointsI have key and string parameters, why the error?
I have key and string parameters, why the error?
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends Activity {
public static final String EXTRA_YEAR = "EXTRA_YEAR";
public Button goButton;
public EditText yearField;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
goButton = (Button)findViewById(R.id.goButton);
yearField = (EditText)findViewById(R.id.yearField);
goButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Add your code in here!
Intent intent = new Intent(MainActivity.this, TimeTravelActivity.class);
intent.putExtra(EXTRA_YEAR, yearField.getText());
startActivity(intent);
}
});
}
}
import android.os.Bundle;
import android.view.View;
public class TimeTravelActivity extends Activity {
public String targetYear;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_time_travel);
}
}
2 Answers
Simon Coates
28,694 PointsFor any future users, the following seems to pass the challenge completely:
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends Activity {
public Button goButton;
public EditText yearField;
public static final String EXTRA_YEAR = "EXTRA_YEAR";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
goButton = (Button)findViewById(R.id.goButton);
yearField = (EditText)findViewById(R.id.yearField);
goButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,TimeTravelActivity.class);
String year = new String();
year = yearField.getText().toString();
intent.putExtra(EXTRA_YEAR, year);
startActivity(intent);
}
});
}
}
and
import android.os.Bundle;
import android.view.View;
public class TimeTravelActivity extends Activity {
public String targetYear;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_time_travel);
targetYear = getIntent().getStringExtra(MainActivity.EXTRA_YEAR );
}
}
Seth Kroger
56,413 PointsIt's one of those tricky points of Android, but EditText.getText() doesn't quite give you a String. It gives you something called an Editable and you have to use toString() on it to get a true String.
Darnell Cephus
4,208 PointsI'm trying to get use to thinking logically about this...but this was the correct answer. Correct me if I'm wrong Seth lol
..... goButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Add your code in here!
Intent intent = new Intent(MainActivity.this,TimeTravelActivity.class);
String year = new String();
year = yearField.getText().toString();
intent.putExtra(EXTRA_YEAR, year);
startActivity(intent);
}
});
}