java - 通过 MainActivity 全屏显示会使应用程序崩溃

Question

当我尝试在 MainActivity.java 中使我的应用程序全屏显示时，我的应用程序崩溃了。这就是我的全屏代码:

    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_main);

}

Answer 1

您调用 setContentView 两次

//setContentView(R.layout.activity_main); //don't call here

requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
        WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);