Android 在布局里去掉抬头标题栏

只要在

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        supportRequestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_shr__home);

    }
}

新建一个类在类里添加 

supportRequestWindowFeature(Window.FEATURE_NO_TITLE);

这句话就可以了