Android隐藏和禁用通知（状态）栏

Question

通过使用下面的代码，我可以通过全屏隐藏通知栏

android:theme="@android:style/Theme.Holo.NoActionBar.Fullscreen"

要么

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

但我想要做的是完全禁用状态栏。 我正处于所谓的“自助服务终端模式”，我想确保用户不能从顶部挡板上滑下手指。 上述两种解决方案都可以隐藏通知栏，但它不适用于在应用程序中完全禁用它。

这可能吗？

Answer 1

而不是跟随其他答案的链接，这是我做的。

如果下拉（即使在全屏幕应用程序中），此解决方案也不允许用户“查看”处于“预览”状态的状态栏，但它不允许用户将状态栏拉到其完整状态以查看设置，通知等

您必须先在AndroidManifest.xml添加权限

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/> 

然后添加另一个名为customViewGroup.java类（Java文件）并将此代码放入其中：

import android.content.Context;
import android.util.Log;
import android.view.MotionEvent;
import android.view.ViewGroup;

public class customViewGroup extends ViewGroup {
    public customViewGroup(Context context) {
        super(context);
    }
    @Override
    protected void onLayout(boolean changed, int l, int t, int r, int b) {
    }
    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        Log.v("customViewGroup", "**********Intercepted");
        return true;
    }
}

在完成这两个设置之后，您可以将其添加到主onCreate()

WindowManager manager = ((WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE));
WindowManager.LayoutParams localLayoutParams = new WindowManager.LayoutParams();
localLayoutParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ERROR;
localLayoutParams.gravity = Gravity.TOP;
localLayoutParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|
// this is to enable the notification to recieve touch events
WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |
// Draws over status bar
WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
localLayoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
localLayoutParams.height = (int) (50 * getResources().getDisplayMetrics().scaledDensity);
localLayoutParams.format = PixelFormat.TRANSPARENT;
customViewGroup view = new customViewGroup(this);
manager.addView(view, localLayoutParams);

此解决方案禁用始终向下拉状态栏的功能，直到您的应用关闭。 如果您不想每次都关闭应用，则必须在暂停时删除此操作。

从本回答中获得@Abhimaan Madhav的信用

Answer 2

我认为永久禁用状态栏很困难。 我也在研究相同的概念并进行了大量的研发，发现下面的代码可能很有用。 如果用户尝试扩展状态栏，那么在一秒内它将撤回它，它也将在oreo上工作。 我试过不同的操作系统。

public class BlockStatusBar {Context context;

    // To keep track of activity's window focus
    boolean currentFocus;
    // To keep track of activity's foreground/background status
    boolean isPaused;

    public Handler collapseNotificationHandler;
    Method collapseStatusBar = null;

    public BlockStatusBar(Context context, boolean isPaused) {
        this.context = context;
        this.isPaused = isPaused;
        collapseNow();
    }

    public void collapseNow() {


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

        }

        // If window focus has been lost && activity is not in a paused state
        // Its a valid check because showing of notification panel
        // steals the focus from current activity's window, but does not
        // 'pause' the activity
        if (!currentFocus && !isPaused) {

            Runnable myRunnable = new Runnable() {
                public void run() {
                    // do something
                    try {

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

                        try {
                            statusBarManager = Class.forName("android.app.StatusBarManager");
                        } catch (ClassNotFoundException e) {
                            Log.e(LOG_TAG, "" + e.getMessage());
                        }

                        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) {
                            Log.e(LOG_TAG, "" + e.getMessage());
                        }

                        collapseStatusBar.setAccessible(true);

                        try {
                            collapseStatusBar.invoke(statusBarService);
                        } catch (IllegalArgumentException e) {
                            e.printStackTrace();
                        } catch (IllegalAccessException e) {
                            e.printStackTrace();
                        } catch (InvocationTargetException e) {
                            e.printStackTrace();
                        }

                        // Check if the window focus has been returned
                        // If it hasn'kioskthread been returned, post this Runnable again
                        // Currently, the delay is 100 ms. You can change this
                        // value to suit your needs.
                        if (!currentFocus && !isPaused) {
                            collapseNotificationHandler.postDelayed(this, 100L);

                        }
                        if (!currentFocus && isPaused) {
                            collapseNotificationHandler.removeCallbacksAndMessages(null);
                        }
                    } catch (Exception e) {
                        Log.e("MSG", "" + e.getMessage());
                    }
                }
            };
            // Post a Runnable with some delay - currently set to 300 ms
            collapseNotificationHandler.postDelayed(myRunnable, 1L);

        }
    }
}