防止状态栏显示为android(修改)

Question

我正在实现一个kiosk模式应用程序，我已经成功地使应用程序全屏没有状态栏外观4.3，但无法隐藏状态栏4.3和4.4当我们在屏幕顶部向下滑动时状态栏出现

我已经尝试通过

使其全屏

• 在清单
中指定全屏主题
• 设置窗口标志，如setFlags
• setSystemUiVisibility

可能重复，但未找到具体解决方案

永久隐藏Android状态栏

最后我想要的是，如何隐藏状态栏永久在一个活动??android 4.3、4.4、5、6版本

Answer 1

我们无法阻止kitkat设备在全屏模式下显示状态，所以我们做了一个仍然符合要求的hack，即阻止状态栏展开

要做到这一点，应用程序没有全屏显示。我们在状态栏上放置了一个覆盖层，并消耗了所有输入事件。它阻止状态扩展。

注意:

• customViewGroup是扩展any的自定义类布局(框架，相对布局等)并消耗触摸事件。
的onInterceptTouchEvent方法返回true

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

customViewGroup实施

代码:

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);

Answer 2

在Android M中，你必须获得额外的权限才能进行覆盖。android.permission.SYSTEM_ALERT_WINDOW是不够的!所以我使用了disableStatusBar()中Abhimaan的答案中的代码，并且必须做出打开正确设置对话框的意图。我还在onDestroy()中添加了删除视图，以便在应用程序退出时启用状态栏。我还降低了覆盖高度为40，因为它似乎已经足够了。这里的代码可以在5.1和6.0上运行。

public static final int OVERLAY_PERMISSION_REQ_CODE = 4545;
protected CustomViewGroup blockingView = null;
@Override
protected void onDestroy() {
    super.onDestroy();
    if (blockingView!=null) {
        WindowManager manager = ((WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE));
        manager.removeView(blockingView);
    }
}

@Override
protected void onCreate(Bundle savedInstanceState) {
        if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (!Settings.canDrawOverlays(this)) {
                Toast.makeText(this, "Please give my app this permission!", Toast.LENGTH_SHORT).show();
                Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,Uri.parse("package:" + getPackageName()));
                startActivityForResult(intent, OVERLAY_PERMISSION_REQ_CODE);
            } else {
                disableStatusBar();
            }
        }
        else {
            disableStatusBar();
        }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == OVERLAY_PERMISSION_REQ_CODE) {
        if (!Settings.canDrawOverlays(this)) {
            Toast.makeText(this, "User can access system settings without this permission!", Toast.LENGTH_SHORT).show();
        }
        else
        { disableStatusBar();
        }
    }
}
protected void disableStatusBar() {
    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 receive 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) (40 * getResources().getDisplayMetrics().scaledDensity);
    localLayoutParams.format = PixelFormat.TRANSPARENT;
    blockingView = new CustomViewGroup(this);
    manager.addView(blockingView, localLayoutParams);
}

Answer 3

对于我所从事的一个项目，我已经找到了一个解决方案，但它花了很长时间。在Stackoverflow和其他地方的各种线程帮助我想出了它。这是Android M上的一个解决方案，但它运行得很好。由于有人要求，所以我想我应该把它贴在这里，如果它能对任何人有益。

现在已经有一段时间了，我不记得所有的细节，但是CustomViewGroup是覆盖主ViewGroup的类，并检测用户从顶部滑动到显示状态栏。但是我们不想显示它，所以用户的拦截被检测到，任何进一步的动作都被忽略，即Android操作系统不会得到打开隐藏状态栏的信号。

然后还包括显示和隐藏状态栏的方法，您可以将其复制/粘贴到您想要显示/隐藏状态栏的代码中。

/**
 * This class creates the overlay on the status bar which stops it from expanding.
 */
public static 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", "********** Status bar swipe intercepted");
        return true;
    }
}
public static void allowStatusBarExpansion(Context context) {
    CustomViewGroup view = new CustomViewGroup(context);
    WindowManager manager = ((WindowManager) context.getApplicationContext()
            .getSystemService(Context.WINDOW_SERVICE));
    manager.removeView(view);
}
// Stop expansion of the status bar on swipe down.
public static void preventStatusBarExpansion(Context context) {
    WindowManager manager = ((WindowManager) context.getApplicationContext()
            .getSystemService(Context.WINDOW_SERVICE));
    Activity activity = (Activity) context;
    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 receive touch events
            WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |
            // Draws over status bar
            WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
    localLayoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
    //http://stackoverflow.com/questions/1016896/get-screen-dimensions-in-pixels
    int resId = activity.getResources().getIdentifier("status_bar_height", "dimen", "android");
    int result = 0;
    if (resId > 0) {
        result = activity.getResources().getDimensionPixelSize(resId);
    }
    localLayoutParams.height = result;
    localLayoutParams.format = PixelFormat.TRANSPARENT;
    CustomViewGroup view = new CustomViewGroup(context);
    manager.addView(view, localLayoutParams);
}