CODEWITHSUNDEEP
javaandroid
Bert
Bert

Reputation: 11

error: cannot resolve symbol 'edit_message' in MyFirstApp tutorial

this is the code in MyActivity.java :

public class MyActivity extends AppCompatActivity {

public final static String EXTRA_MESSAGE = "com.mycompany.myfirstapp.MESSAGE";

/** Called when the user clicks the Send button */
public void sendMessage(View view){
    Intent intent = new Intent(this, DisplayMessageActivity.class);
    EditText editText = (EditText) findViewById(R.id.edit_message);
    String message = editText.getText().toString();
    intent.putExtra(EXTRA_MESSAGE, message);
    startActivity(intent);
    }

}

It says it cannot resolve the symbol 'edit_message' (see 6th line). Answers to this problem were to add this string to strings.xml, but it is already there, and declared just fine:

<resources>
    <string name="app_name">My First App</string>
    <string name="edit_message">Enter a message</string>
    <string name="button_send">Send</string>
    <string name="action_settings">Settings</string>
    <string name="title_activity_main">MainActivity</string>
    <string name="title_activity_display_message">My Message</string>
    <string name="hello_world">Hello world!</string>
</resources>

The error message in Gradle Build is: Error:(21, 57) error: cannot find symbol variable edit_message

Why can't it find this string?

I've been staring at this for quite a while and almost ashamed I can't solve it.. I mean, it's a tutorial for crying out loud. Any help would be apreciated very much!

Upvotes: 0

Views: 609

Answers (2)

Mr. M
Mr. M

Reputation: 62

If you are trying to access a resource so:

String s = context.getResources().getString(id);

and the id is: R.id.edit_message

context can be replaced by this. or getBaseContext().

By to access an EditText it needs to be declared in the Layout' XML file (or declared at run time).

Upvotes: 0

Psytho
Psytho

Reputation: 3384

Your code is looking for a ´EditText´ element with name "edit_message" (not for a String with this name), so your layout xml file should contain EditText element with id edit_message

<EditText android:id="@+id/edit_message"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content"
    />

Upvotes: 1

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