package fr.clem28l.topquiz;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
private TextView mGreetingTextView;
private EditText mNameEditText;
private Button mPlayButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mGreetingTextView = findViewById(R.id.main_textview_greeting);
mNameEditText = findViewById(R.id.main_edittext_name);
mPlayButton = findViewById(R.id.main_button_play);
mPlayButton.setEnabled(false);
mNameEditText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
mPlayButton.setEnabled(!s.toString().isEmpty());
}
});
mPlayButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
}
});
LE CODE