隐藏标题栏需要使用预定义样式：android:theme=”@android:style/Theme.NoTitleBar”.

隐藏状态栏：android:theme=”@android:style/Theme.NoTitleBar.Fullscreen”.

 

 

 

@Overridepublic void onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   // hide titlebar of application   // must be before setting the layout   requestWindowFeature(Window.FEATURE_NO_TITLE);   // hide statusbar of Android   // could also be done later   getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,       WindowManager.LayoutParams.FLAG_FULLSCREEN);   setContentView(R.layout.main);   text = (EditText) findViewById(R.id.EditText01);    }