公共类MainActivity延伸活动{

    @覆盖
    保护无效的onCreate（包savedInstanceState）{
        。this.getWindow（）getDecorView（）setSystemUiVisibility（getSystemUiFlags（））。
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.activity_main）;
    }

    私有静态诠释getSystemUiFlags（）{
            返回View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
                    | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                    | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
    }

}
 

第一次启动后，

在音量按钮pressed或最近的应用程序后，pressed两次

我看到下载快应用程序不会有这个问题。我不知道他们是如何省略了。 解决方案

至于我，我用这个code

 公共无效UiChangeListener（）
    {
        最后查看decorView = getWindow（）getDecorView（）。
            decorView.setOnSystemUiVisibilityChangeListener（新View.OnSystemUiVisibilityChangeListener（）{
            @覆盖
            公共无效onSystemUiVisibilityChange（INT可见性）{
                如果（（能见度和放大器; View.SYSTEM_UI_FLAG_FULLSCREEN）== 0）{
                    decorView.setSystemUiVisibility（
                            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
                            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY）;
                }
            }
        }）;
    }
 

和上的onCreate的说法。 ：）

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        this.getWindow().getDecorView().setSystemUiVisibility(getSystemUiFlags());
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    private static int getSystemUiFlags() {
            return View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
                    | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                    | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
    }

}

After first start

After volume buttons pressed or after recent apps pressed twice

I saw QuickPic app doesn't have this bug. I wonder how they omitted it.

as for me, I use this code

public void UiChangeListener()
    {
        final View decorView = getWindow().getDecorView();
            decorView.setOnSystemUiVisibilityChangeListener (new View.OnSystemUiVisibilityChangeListener() {
            @Override
            public void onSystemUiVisibilityChange(int visibility) {
                if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
                    decorView.setSystemUiVisibility(
                            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
                            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
                }
            }
        });
    }

and called it on onCreate. :)