Android requestFeature() must be called before adding content报错

来源：互联网发布：舵手医药软件编辑：程序博客网时间：2024/06/05 02:19

在Activity设置窗口没标题时用下面代码时报错：requestFeature() must be called before adding content

 protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        requestWindowFeature(Window.FEATURE_NO_TITLE);        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);        setContentView(R.layout.activity_main);            }

这是由于初始化时执行requestWindowFeature(Window.FEATURE_NO_TITLE)时需要在添加内容之前，网上的一些解决方案如下：

 protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        requestWindowFeature(Window.FEATURE_NO_TITLE);        setContentView(R.layout.activity_main); //setContentView必须放在requestWindowFeature和getWindow().setFlags()中间        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);       }

OK，点击调试运行....结果依然报这个错，试一下把requestWindowFeature(Window.FEATURE_NO_TITLE)放在super.onCreate前面，问题解决，最终代码是这样的：

 protected void onCreate(Bundle savedInstanceState) {        requestWindowFeature(Window.FEATURE_NO_TITLE);        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);    }

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