Question

看起来很简单的事情让我有些问题。我看过以下的解决方案：

Android Hide Navigation Bar/Stay in Immersive Mode with Soft Keyboard Appearance

我有一个关于ImageButton的简单活动。我想进入沉浸式模式。我在onCreate上调用了以下方法。

问题屏幕上的第一次单击始终会弹出导航栏，并且不会触发单击处理程序。是否有一种简单/不那么愚蠢的方法来阻止这个

 public void hideNavigationBar()
        {
            final View decorView = getWindow().getDecorView();

            int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_FULLSCREEN;
            decorView.setSystemUiVisibility(uiOptions);

            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);
                    }
                }
            });
        }

Answer 1

您必须记住添加此方法：

@Override
public void onWindowFocusChanged(boolean hasFocus) {
    super.onWindowFocusChanged(hasFocus);
    if(android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && hasFocus) {
        getWindow().getDecorView().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);
    }
}

即使按下按钮或屏幕，它也会自动隐藏它。

Answer 2

我很傻（自从我做Android以来已经有一段时间了）

这解决了问题：

private void hideNavigationBar()
    {
        View decorView = getWindow().getDecorView();
        // Hide both the navigation bar and the status bar.
        // SYSTEM_UI_FLAG_FULLSCREEN is only available on Android 4.1 and higher, but as
        // a general rule, you should design your app to hide the status bar whenever you
        // hide the navigation bar.
        int uiOptions = 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;

        decorView.setSystemUiVisibility(uiOptions);

    }

安卓隐藏导航栏/单击按钮时保持沉浸模式

2 个答案: