Android 在 oreo 中隐藏和禁用通知(状态)栏

Question

通过禁用拉动和单击状态栏来 kiosking 应用程序的方法在 android 8 上不起作用。如在 How to disable status bar click and pull down in Android? 上回答的那样.

我已经在 android 7 及更低版本上测试过它并且它可以工作，但是在 android 8 上拉动时状态栏仍然拉下。

我没有找到任何解决方案。如果有任何解决方案也适用于奥利奥，请告诉我。

谢谢!

Answer 1

我在 MainActivity 中使用以下代码。

//Global Declaration
Handler collapseNotificationHandler;

@Override
    public void onWindowFocusChanged(boolean hasFocus) {
    super.onWindowFocusChanged(hasFocus);
    Log.d(tag, "window focus changed");

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        collapseNow();
    }
}

折叠方法

public void collapseNow() {

    try {
        // Initialize 'collapseNotificationHandler'
        if (collapseNotificationHandler == null) {
            collapseNotificationHandler = new Handler();
        }

        // Post a Runnable with some delay - currently set to 300 ms
        collapseNotificationHandler.postDelayed(new Runnable() {

            @Override
            public void run() {

                // Use reflection to trigger a method from 'StatusBarManager'
                Object statusBarService = getSystemService("statusbar");
                Class<?> statusBarManager = null;

                try {
                    statusBarManager = Class.forName("android.app.StatusBarManager");
                } catch (ClassNotFoundException e) {
                    e.printStackTrace();
                }

                Method collapseStatusBar = null;
                try {
                    // Prior to API 17, the method to call is 'collapse()'
                    // API 17 onwards, the method to call is `collapsePanels()`
                    if (Build.VERSION.SDK_INT > 16) {
                        collapseStatusBar = statusBarManager.getMethod("collapsePanels");
                    } else {
                        collapseStatusBar = statusBarManager.getMethod("collapse");
                    }
                } catch (NoSuchMethodException e) {
                    e.printStackTrace();
                }

                collapseStatusBar.setAccessible(true);

                try {
                    collapseStatusBar.invoke(statusBarService);
                } catch (IllegalArgumentException e) {
                    e.printStackTrace();
                } catch (IllegalAccessException e) {
                    e.printStackTrace();
                } catch (InvocationTargetException e) {
                    e.printStackTrace();
                }
                // Currently, the delay is 10 ms. You can change this
                // value to suit your needs.
                collapseNotificationHandler.postDelayed(this, 10L);
            }
        }, 10L);
    } catch (Exception e) {
        e.printStackTrace();
    }
}