Android requestFeature() must be called before adding content报错
16lz
2021-01-23
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); }更多相关文章
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