The first way:
requestWindowFeature(Window.FEATURE_NO_TITLE);
Note that this method is useless when the inherited class is AppCompatActivity, as follows, change it to Activity
public class MainActivity extends AppCompatActivity
The correct spelling is:
public class MainActivity extends Activity { //继承 Activity // ... @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate (savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); //Write in front of the setContentView() function setContentView(R.layout.activity_listview); //... }
The second way:
getSupportActionBar().hide();
The inherited class is AppCompatActivity, as follows
public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate (savedInstanceState); setContentView(R.layout.activity_listview); getSupportActionBar().hide(); //Write after the setContentView() function //... }
For beginners, write this note.