Since it seems that we can no longer hide the bar with home and back buttons in Jellybean, I'd at least like to fade it out a little like in the Kindle app (where the buttons are only small discrete dots).
I've been searching all over the place for this but I can't seem to find it!
Cheers
/M
You can use:
View rootView = getWindow().getDecorView();
rootView.setSystemUiVisibility(View.STATUS_BAR_HIDDEN);
View.SYSTEM_UI_FLAG_LOW_PROFILE replaces View.STATUS_BAR_HIDDEN on Android 4.0 and above.
You can also use View.SYSTEM_UI_FLAG_HIDE_NAVIGATION to attempt to hide the bar completely. Note that this will mostly only work on handsets and not tablets, and that several Samsung TouchWiz devices do not interpret this correctly. The bar will also consume the first user interaction with the screen to show itself again while your app is running.
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
Related
Problem
Activating and Deactivating (immersive) full-screen mode causes that the statusbar but also navigation bar "fades" in and out. The animation seem to differ across different devices and I would like to disable the animation completely. My minimum target SDK is 19; however, I would also be happy with a solution that requires a higher API level. Please see below for further details.
Running demo
I implemented a (minimal) demo so that people can test things easily. Everything is available on GitHub:
https://github.com/sztyler/android-fullscreendemo
For clarification, I am using setSystemUiVisibility(FLAGS) to activate/deactivate the full screen mode. Further, I am using the following flags:
Activating full-screen mode:
int visibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN
| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
mainView.setSystemUiVisibility(visibility);
Deactivating full-screen mode:
int visibility = View.SYSTEM_UI_FLAG_VISIBLE;
mainView.setSystemUiVisibility(visibility);
What I tried
I already tried many different things and did a lot of research. In the following, I want summaries the main approaches which I already tried.
Instead of using setSystemUiVisibility (which seems to be recommended) a lot of people recommend to use getWindow().setFlags to change flags. However, setting the Flags in a different way does not seem to have an effect. I also assume that this is outdated.
how to remove statusbar animation when changing to fullscreen in Android
Hide and show statusBar with Toolbar at the same time in android
Android: Disable and enable to pulling the status bar programmatically for API 19
hide and show statusbar without any effect to layout in android
Android: show/hide status bar/power bar
It seems to be possible to exclude the status bar and navigation bar from the exit/enter fade transition when switching between activities. However, this does not seem to have any effect on activating/deactivating full-screen mode.
How do I prevent the status bar and navigation bar from animating during an activity scene animation transition?
Some people just recommend different flags (just in general to hide the bars) -but the animation stays the same.
View.setSystemUiVisibility(View.STATUS_BAR_HIDDEN);
Android: Ability to Auto-Hide the Title/Status Bars?
Some people highlight that it is possible to override the subsequent animation with overridePendingTransition(0, 0)
but this does not seem so work in this case.
Is there any way to remove notification/status bar, but not in onCreate?
How the animation can look like
Just to clarify what I mean. In the following, there are gif animations which show the status/navigation bar animation (Sorry I don't have the permission to embed images)
Android 8.0 / Huawei / There is no fade out animation (both bars just vanish as required but there is a fade in animation). Both statusbar and navigationbar "flash in".
Statusbar Animation
Navigationbar Animation
Android 5.0 / Samsung / There is a fade in and fade out animation (There is no navigationbar).
Statusbar Animation
(The behavior of the actionbar is as expected.)
I am developing an application that must hide title bar to increase screen spaces and for design issues. on non-physical buttons devices like nexus-4 and for Android > 3.0, I can't switch to use Action bar because the title bar is hidden, and in the same times these devices hasn't physical buttons to use standard menu.
My Question: How can I solve this problem
Thanks
How can I solve this problem
Modify your UI to either:
Add back the action bar, or
Add something else on your screen, such as a button, to display something else on the screen that will serve as your "menu". You can see this approach used by many games.
Is it possible to permanently hide Navigation/Status Bar under Android 4.2.2
This solution seems not working under Jelly Bean.
I have GalaxyTab 3 (10.1) and hidding of Status Bar has no effect.
It's hidden on application Start on every screens, but i can expand it.
Problem occurs also after rooting device.
Somebody has faced it before (there is also video how to fix it):
forum.xda-developers.com/showthread.php?p=37466852
So my question is:
Is there any way to do this on application level?
Chris Banes and Roman Nurik have develop this usefull tool to controls the System UI easily
https://gist.github.com/chrisbanes/73de18faffca571f7292
No, it seems like there is no way to do this for your entire application on tablets running 4.+. Also, fully disabling it so it never appears is NOT possible.
However, the solution you linked does sort of work for Android 4.2.2, (tested on Nexus S and 10 inch tablet on emulator) but even when it works it reloads the status bar if certain user interactions occur to allow navigation (for example, pressing the menu button on a phone). So this means you should plan on spamming the flag every now and then.
I personally tried with this code in my oncreate:
View decorView = getWindow().getDecorView();
int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN;
decorView.setSystemUiVisibility(uiOptions);
// Remember that you should never show the action bar if the
// status bar is hidden, so hide that too if necessary.
ActionBar actionBar = getActionBar();
actionBar.hide();
Which resulted in:
With the 4.2.2 phone the actionBar below also disappears, this does not seem to be possible for tablets.
Coming from the Android documentation about hiding the status bar, it seems that on Android 4.0 or lower, you would be able to set the fullscreen flag for the entire application and be done with it, but this has been changed to the piece of code above.
Next, the UI documentation has this to say:
The SYSTEM_UI_FLAG_LOW_PROFILE flag replaces the STATUS_BAR_HIDDEN flag. When set, this flag enables “low profile" mode for the system bar or navigation bar. Navigation buttons dim and other elements in the system bar also hide. Enabling this is useful for creating more immersive games without distraction for the system navigation buttons.
So I guess it could be that the galaxy tab 3 requires some playing around with these kinds of flags and does not support actually hiding the status bar but rather prefers making it "less visible" ...
Finally, the setSystemUiVisibility method has some great examples if you're still interested in making sure the status bar stays hidden throughout your application.
Please note, that the status bar and the navigation bar are two completely different things. The navigation bar contains the back, home, and recent apps buttons, while the status bar contains the notifications, clock, battery, etc... The status bar can be easyly hidden with flags like SYSTEM_UI_FLAG_FULLSCREEN, but more convenient, using this as your app base theme:
android:theme="#android:style/Theme.NoTitleBar.Fullscreen"
In tablets, the navigation bar often consists the status bar, so if the navbar is visible, the status bar will be too. You can't just hide the status bar, because then you would have to hide the nav bar too.
The purpose of you can't hide the navigation bar forever, is that the user must be able to control his device and navigate as he wants to.
You can't hide the navigation bar before 4.0, and as in the developer guide says, you can hide the nav bar with the SYSTEM_UI_FLAG_HIDE_NAVIGATION flag, however, it won't stay hidden once the user touches the tablet. More explanation here: Android Developers - Hiding the Navigation Bar
In 4.4 KitKat, a new API was introduced, the immersive mode, with that you can hide the navigation bar and still make the user to be able to interact with your app, without the navigation bar revealing itself. The user can swipe down from the bottom of his screen to make it visible again, this clears the SYSTEM_UI_FLAG_IMMERSIVE flag. If you want to make the navigation bar disappear when the user doesn't interact with it, then you can use the SYSTEM_UI_FLAG_IMMERSIVE_STICKY flag, so it will disappear if the user finishes with it. More explanation here: Android Developers - Android 4.4 API
Also immersive tutorial: Android Developers - Using Immersive Full-Screen Mode
Also, make sure you are targetting the API 19, and only use this flag, when your app runs on API 19 or later. More on checking API version: Here (StackOverflow)
Hiding the Status Bar under Android 4.2.2 (SDK 17)
This solution worked for me.
getWindow().getDecorView().setSystemUiVisibility(8);
try this..its working for me..
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,windowManager.LayoutParams.FLAG_FULLSCREEN);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.about_app_phone);
}
How can I hide Status bar and show on touch as in the video players in Android 4.0.3? I tried use
setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION), setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE) and setSystemUiVisibility(View.STATUS_BAR_VISIBLE)
on tablets, but it's not work.
Try to use this flag:
public static final int SYSTEM_UI_FLAG_FULLSCREEN
Since: API Level 16
Although api level 16 it is works on my 4.0.4 tablet.
You cannot hide the system bar on Android tablets, sorry. You can dim the system bar, but not remove it entirely.
As #CommonsWare said, that's not possible on Tablets. Use
view.setSystemUiVisibility(View.STATUS_BAR_HIDDEN);
view.setSystemUiVisibility(View.STATUS_BAR_VISIBLE);
to make darker the system bar for full screen mode. I am using this code and it's working well. Almost the entire screen is dark, only small grey points appear where the system buttons (back, home, ...) are.
I'd like to extend the discussion regarding hiding of the system/navigation bar at the bottom of the screen on Android Ice Cream Sandwich (4.0 and up) tablet devices.
There's already a thread ( Is there a way to hide the system bar in Android 3.0? It's an internal device and I'm managing navigation ) about hiding the bar on Honeycomb devices. My clients, however, will be using the newest Ice Cream Sandwich devices and are very keen on hiding the bar at the bottom the screen. Their application is not for regular consumer use and it's very important for them to take over the whole screen to provide their experience. How possible is it to hide this bar -- or at least, override the behaviour of all the buttons -- without rooting the devices or rewriting its firmware?
Check out SYSTEM_UI_FLAG_HIDE_NAVIGATION, this flag hides the navigation bar until the user interacts with the device. It was introduced in Android 4.0. You can enable this flag for example like this:
getWindow().getDecorView()
.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
Note that the navigation won't disappear again automatically, you have to set it every time after the user interacted with the device.
Alternatively you can make the navigation less obtrusive by using SYSTEM_UI_FLAG_LOW_PROFILE, this changes the buttons into small dots (e.g. like the camera app).
on rooted devices, i use the following adb command
adb shell pm disable com.android.systemui
to hide navigation bar permanently. To show it again, run
adb shell pm enable com.android.systemui
so far it's working fine for me
Using the below code is one way of doing it to hide navigation
getWindow().getDecorView()
.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
But the problem with the above is that it becomes visible as soon as user touches the screen.
In Android Kitkat there is a feature called as IMMERSIVE which hides the notification bar and the navigation. It does not show even if the user interacts with the screen. However the user can make it visible by swiping it from top of the screen to bottom. Below is the code to achieve it
//Initializew this in onCreate()
View mDecorView = getWindow().getDecorView();
//Then call this function
private void hideSystemUI() {
mDecorView.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_LOW_PROFILE
| View.SYSTEM_UI_FLAG_IMMERSIVE);
}
However in my case I never wanted the navigation and notification bar to be visible even if the user swipes from top of the screen to bottom. I gave it a try and I was able to achieve it partially. What I did was I implemented a CountDownTimerwhich would call hideSystemUI() every second or so. I know it is not the best way of doing it. But I did not get any other solution to do it.
If someone gets any then please let me know on how to permanently hide navigation and notification bar :) Hope this answer helps some one in future :)
Watch this video to better understand about this feature.
Update - there is a work around which can be used for such cases (manually setting up the app for the client). Indeed, the navigation bar can't be removed within the given framework.
However, there is a solution to hide the navigation bar if rooting the device is an option for you. Here is how:
Root device
Install and run Busybox
Install HideBar
In HideBar there is an option to run in 'Kiosk' mode, in which there is no way to re-display the navigation bar. Needless to say, you really need to be careful with this.
Risks involved:
bricking the device
getting the installation of BusyBox wrong, which could get things a bit tricky, although is very unlikely to cause loss of information.
getting into a stalemate where you can't quit your app. For example if 1 your GUI doesn't provide a close option, 2 your app start automatically on start-up, 3 HideBar doesn"t allow any way of re-displaying the navigation bar and 4 HideBar hids the navigation bar on startup. However this can be overcome by simply stopping/uninstalling your app from adb.
Here are other identical questions:
Android tablet navigation bar won't hide
How to remove system bars on Android, I mean, all
Android tablet navigation bar won't hide
Is there a way to hide the system/navigation bar in Android ICS
Hide Tablet system bar
Real Fullscreen with Android 4 Tablets
Easy way to hide system bar on Android ICS
Although it's a hacky solution, I think it deserves attention because does not require rooting the device:
getWindow().getDecorView().setSystemUiVisibility(8);.
To hide status bar and navigation bar in android ics use
LinearLayout layout = (LinearLayout)findViewById(R.id.layout);
layout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
EDIT: As of 4.4 (19) you can use the following to enable what is called "IMMERSIVE MODE". It was introduced for Google's Cardboard vrtoolkit, but can be used generally.
setSystemUiVisibility(View.SYSTEM_UI_FLAG_IMMERSIVE)
https://developer.android.com/training/system-ui/immersive.html
From my efforts, it seems that:
setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION)
does not work on tablets.
It does work on smartphones (tested with a Nexus 4 Mako), but it will reappear on a touch/click event.
This also seems to capture focus to the bar, forcing you to click twice to regain focus to the view.
I have been trying to find a way to trap the event that actually redisplays the bar. No luck.
Being stubborn, I am going to download the android os code, fire up the eclipse debugger and go a-huntin. This is not a bug - the nav bar is crucial to app lifecycle.
I have seen apps do it (games and such) so there is a way without rooting.
place this code in your application tag in manifest file to hide default tab bar
<Application
android:theme="#android:style/Theme.Black.NoTitleBar.Fullscreen" <!--
other parameters of application tag-->
>
and the then make a linear or relative layout and place it in your activity layout.
You can not hide it unless you have rooted the device. But of course there is a workaround which might not fit with your requirement but several well known apps in the market at the moment using this strategy to achieve this disable menu bar feature for their apps.
Grant admin privilege.
Set password & lock the device using device admin profile api
Then load what ever the UIs on top of the native lock screen. (Of course this will show background lock screen whenever a transition happens between activities. But if logic is organized well, then it will be smooth & less noticed by the user)
When need to enable back, reset password to "" using resetPassword("", 0) of device policy manager object.
may be is the button behavor is enought you can have a look in my answer here
you still have the bar but you can't exit app without reboot tablet
You can hide the navigation bar on Android 4.0 and higher using the SYSTEM_UI_FLAG_HIDE_NAVIGATION flag. This snippet hides both the navigation bar and the status bar:
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_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN;
decorView.setSystemUiVisibility(uiOptions
See the following: Hiding the Navigation Bar
If your device is rooted this code will help you to hide system bar on ICS (I tested it on Samsung Galaxy Tab 2 and it works excellent):
ArrayList<String> list = new ArrayList<String>();
Map<String, String> env = System.getenv();
for (String envName : env.keySet()) {
list.add(envName + "=" + env.get(envName));
}
// Array containing the environment to start the new process in
String[] envp = (String[]) list.toArray(new String[0]);
String hidingCommand = "while [ true ]\n" + "do\n" + "killall com.android.systemui\n" + "done\n";
Runtime.getRuntime().exec(new String[] { "su", "-c", command }, envp);
myContext.sendBroadcast(new Intent("com.mycompany.myapp.ACTION_BARHIDDEN"));