Android-隐藏通知栏，但保持导航状态

Question

I'm creating a kind of Kiosk application for Android but I must disable the notification bar to avoid the customers to access Wifi , Bluetooth or GPS quick access.

So far I've rooted the device and disabled the com.android.systemui package to achieve that. The main issue is, as I got only virtual buttons to navigate, I can't go back or go to home screen. Basically I'm stucked on the application and I can't do anything.

I've used that code to disable the SystemUI package:

pm disable com.android.systemui

Then I've tried to disable the notification bar using the Java reflection API . So far, I've made that code but it doesn't work. Basically, it just throws an exception saying my application doesn't have the required permission android.permission.STATUS_BAR whereas it's written in my Manifest .

try
{
    Object service  = getSystemService("statusbar");
    Class<?> statusbarManager = Class.forName("android.app.StatusBarManager");
    Method collapse = statusbarManager.getMethod("disable", int.class);
    collapse.setAccessible(true);
    collapse.invoke(service, 0x00000001);
}
catch (Exception e)
{
    e.printStackTrace();
}

Did I make something wrong on that part of code ?

An alternative would be to create a System overlay to create my own navigation bar , but I haven't find a proper way to trigger a KeyEvent to the whole system as if it was the "real" buttons. But honnestly, I don't think this would be the best and cleanest solution to use.

Any help would be greatly appreciated.

Answer 1

In styles.xml:

<resources>
   <style name="Theme.FullScreen" parent="@android:style/Theme.Holo">
   <item name="android:windowNoTitle">false</item>
   <item name="android:windowFullscreen">true</item>
   </style>
</resources>

Refer to your custom style in your mainfest:

<activity android:name=".MyActivity" android:theme="@style/Theme.FullScreen"/>

or TODO it programatically just do

// Remove System bar (and retain title bar)
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 
                 WindowManager.LayoutParams.FLAG_FULLSCREEN);

in code it looks like

import android.app.Activity;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager;

public class ActivityName extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // Remove System bar (and retain title bar)
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
        // Set your layout
        setContentView(R.layout.main);
    }
}