感谢作者:https://juejin.im/post/5d5ce681e51d45620821cec6
1、首先设置全屏显示
2、然后全屏并隐藏虚拟导航栏。设置导航栏状态监听,避免点击一下后导航栏又出现了。
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);final View decorView = getWindow().getDecorView();final int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY | View.SYSTEM_UI_FLAG_FULLSCREEN;decorView.setSystemUiVisibility(uiOptions);decorView.setOnSystemUiVisibilityChangeListener(new View.OnSystemUiVisibilityChangeListener() {@Overridepublic void onSystemUiVisibilityChange(int i) {if ((i & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {decorView.setSystemUiVisibility(uiOptions);} else {}}});
BUT!如果弹出了一个Dialog,导航栏会再次出现,这并不是我们想要的效果。
SO!在Dialog中:
我们需要在Dialog的show方法中加一下东西。为啥要在show中加,因为加在onStart方法中,导航栏会闪一下。
@Overridepublic void show() {getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);//不加这一行,虚拟键会再出现,再消失super.show();int uiOptions = View.SYSTEM_UI_FLAG_LAYOUT_STABLE| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN| View.SYSTEM_UI_FLAG_FULLSCREEN;getWindow().getDecorView().setSystemUiVisibility(uiOptions);getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);}