Small problem when taking information from a field and showing it in a message in the Android-CodePudding

You can see that I created this simple screen on Android:

Code:

public class MainActivity extends AppCompatActivity {

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

    EditText identifier = findViewById(R.id.identifier);
    Button button = findViewById(R.id.button);

    String identifierIntoString = identifier.getText().toString().trim();

    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(getApplicationContext(), identifierIntoString, Toast.LENGTH_LONG).show();
        }
    });
}

}

Please, what to do so that when a user types something in the field, and then clicks on the button, it appears what the user typed to the Toast.makeText?

CodePudding user response：

Make changes as per below.

    button.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        String identifierIntoString = identifier.getText().toString().trim();
        Toast.makeText(getApplicationContext(), identifierIntoString, Toast.LENGTH_LONG).show();
    }
});