Tetsuya Uno
20,121 PointsWhat should I do if I want users to write their own name no matter what?
I want to return error with error message and let users try again if they don't submit their name. Could anyone help?
2 Answers
Seth Kroger
Treehouse Moderator 56,217 PointsYou could use a Toast, but you can also use the setError() on the EditText to show an error popup:
Marc Reid
3,538 PointsThis doesn't return an error message but uses a toast to inform the user that they must enter a name to continue.
nameField = (EditText)findViewById(R.id.nameEditText);
startButton = (Button)findViewById(R.id.startButton);
startButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String name = nameField.getText().toString();
if (name.trim().isEmpty())
{
Toast.makeText(MainActivity.this, "Hello, please enter your name." ,
Toast.LENGTH_LONG).show();
}
else
{
Toast.makeText(MainActivity.this, "Hello," + name, Toast.LENGTH_LONG).show();
startStory(name);
}
}
});
Tetsuya Uno
20,121 PointsTetsuya Uno
20,121 PointsThank you, but would you mind giving me an example? I tried with setError(), but no luck.
Here is my coding.
public class MainActivity extends AppCompatActivity { private EditText nameField; private Button startButton;
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main);
}
@Override protected void onResume() { super.onResume(); nameField.setText(""); }
private void startStory(String name) { Intent intent = new Intent(MainActivity.this, StoryActivity.class); Resources resources = getResources(); String key = resources.getString(R.string.key_name); intent.putExtra(key, name); if (name == null || name.isEmpty()){ name = "Friend"; } startActivity(intent);
}