直接在onCreate方法里面调用如下方法即可
protected void hideBottomUI() {
int uiFlags = View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN;
if (android.os.Build.VERSION.SDK_INT >= 19) {
uiFlags |= View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
} else {
uiFlags |= View.SYSTEM_UI_FLAG_LOW_PROFILE;
}
getWindow().getDecorView().setSystemUiVisibility(uiFlags);
//解决虚拟按键弹出,无法再次隐藏的问题
getWindow().getDecorView().setOnSystemUiVisibilityChangeListener((i) -> hideBottomUI());
}