[APP][ROOT] zTorch Adjustable and extremely bright Flashlight - Verizon Samsung Galaxy S 4

EDIT: 11/15/2014
This post features version 2.x.x. It is a complete rewrite using Android Studio because importing the project from Eclipse didn't go too well.
For information on version 1.x.x , go to post #28
Downloads for both versions are at the bottom of this page.
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ZTORCH Features:
The goal of ZTorch is to be a extremely quick and lightweight app that does one thing and does it well without extra bloat or ridiculous permissions. ZTorch can vary the brightness of your phones LED and allow you to set brightness levels higher than possible anywhere else.
The Galaxy S4 is capable of 16 different levels of brightness (0-15). Compared to other Apps:
The stock "Assistive Light" that is featured with the phone only sets the level to 1.
The brightest AppStore Apps, such as TeslaLED, are able to set the brightness to a little less than half brightness, level 6.
Typically, flashlight apps take about a second to switch on the LED
ZTorch can adjust the LED in mere milliseconds.
ZTorch stays on when the screen is off and doesn't flicker when the screen switches off.
ZTorch works with the camera. Ever wanted to use the flashlight LED while recording a video or taking a picture? Now you can.
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ZTorch should work across all phones with root if the proper system file is on the phone. ZTorch scans for the following binaries below. If your device isn't supported and you know the path to the proper file, you can set that path in the apps preferences. This app has only ever been tested on the Galaxy S4, if you try it on a different phone, PLEASE let me know how it is!
Code:
"/sys/class/camera/flash/rear_flash", - For Galaxy s4
"/sys/class/camera/rear/rear_flash", - For Galaxy Note and maybe s3
"/sys/class/leds/flashlight/brightness," - HTC devices
"/sys/devices/platform/flashlight.0/leds/flashlight/brightness" - HTC devices
" /sys/class/leds/spotlight/brightness" - Motorolla Droid Devices
"/sys/class/leds/torch-flash/flash_light" - Motorolla Droid 2
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Screenshots from ZTORCH-beta-2.0.0.26.apk:
Main Activity as popup with widget shown in background.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Notification:
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Permissions:
ACCESS_SUPERUSER - To set the LED
RECEIVE_BOOT_COMPLETED - Sets LED to 0, allows for persistent notification, notification on bootup.
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Version Information:
Download attached at bottom of post.
LATEST: Version 2.0.3.50: (Feb 24, 2015)
Notification now appears on boot if that setting is enabled
Separated BootReceiver from main broadcast receiver so disabling the boot receiver won't break the rest of the app.
Notification icon changed to support Lollipop.
Renamed some app refs.
Somehow cut 50kb from the app, it's now 100.6Kb. Considering the Icons take up 89.5Kb I'm kinda amazed.
I haven't got around to making an actual Settings activity. So features are the same from prior version.
Version 1.2.2: (Mar 3, 2014) All the features work but is less refined.
Version 1.3.0: (June 16,2014) Added TorchPlayer to act similar to PWM. All Features work.
Version 1.4.0 (June 20,2014) Switching speed was the priority in this version; the brightness can be changed in <3ms. I abandoned the very comprehensive and powerful Stericson RootTools library in favor of a purpose built class that toggles the flashlight. Warning: The notification doesn't work on API-19 Android 4.4+. Clicking it does nothing. I need to build a new version sometime.
For more info on version 1.x.x such as the screenshots, see post #28
ZTORCH-beta-2.0.0.28: (November 15,2014) Beta version does not yet have a settings or preference activity implemented as well as other nonessentials. To change settings in this version, see below. Changes include:
Entirely new MainActivity that's now in a Popup window
Entirely New and Fully Working Notification
Widget now fills the entire 1x1 grid. (Let me know if there's problems, I set the left and right margins to -23dp to do this)
Added Warn feature and Torch Fireball icon for when the brightness is higher than the Warn value.
Slider no longer lags while trying to effectively "make a strobe light" by not sending broadcasts, updating views, or saving the brightness until after you take your finger off.
Slider changes color based on level.
ZTORCH-beta-2.0.0.33optimized: Technically should be: 2.0.2.33(November 16,2014) Changes:
Adds RECEIVE_BOOT_COMPLETE permission.
Ongoing Notification is available in AppPrefs.xml
TapGuard enabled by default. (Widget ignores first tap to prevent accidental taps)
ZTORCH-optimizedbeta-2.0.3.41: (November 17,2014) Changes:
New Notification AppPrefs.
ongoingNotif (Can't swipe away, Persistent).
onPriority and offPriority (levels: -2, -1, 0, 1, 2 where 2 is PRIORITY_MAX)
Shell Command Text and Toggle Button updated instantly while slider moves.
ZTorchReceiver enables you to send commands from other apps such as Tasker. Available broadcasts listed further down.
Fixed Force Close if the Main Toggle button is pressed and root was denied or the device is unsupported. (Not like you can use the app like this anyway, but still)
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BETA Version Settings
I'm still trying to figure out how android implements preferences and preference fragments. So in the beta, there is none! To change a setting, get a file browser with root access such as ES File Explorer, then navigate to the location below and edit the file "LEDPrefs.xml"
Code:
/data/data/derekziemba.ztorch/shared_prefs/
Additionally there is another file, "AppPrefs.xml" where you will find app specific settings and be able to configure the Notification.
"LEDPrefs.xml" will look like this on ZTORCH-beta-2.0.0.28. Later versions will be slightly different. I recommend uninstalling the app before installing a new beta.
default - The value the torch will turn on at when Toggled or Enabled.
inc - increment. Value the notifications "+" and "-" will increase or decrease by and the Widget will increase at if multitap = true;
multitap - If true, on successive widget taps the brightness will increase by the inc value. If false, brightness will toggle to default value;
wait - For multitap and tapguard. Time in milliseconds between successive widget taps to increase brightness. If more time than this has passed, the LED will shut off.
tapguard - To prevent accidental widget taps turning on the LED. If true, the widget ignores the first tap and waits for a second tap, unless the LED is already on.
min - just leave at 0, this is the "off" value, it is here in case some phones are reversed
max - maximum value on slider and the max value you can increment to. Only the first 3 digits of this will ever be used, giving a max possible value of 999.
warn - value at which the torch turns from yellow to a fireball and the slider begins changing colors from blue to yellow to red.
lvl - Current Brightness. There is no way to retrieve the current LED level, so the last value is stored here
sys - the system binary that controls the LED;
mask - bitmask. The brightness level is bitwise AND'ed with this value before executing the shell command to prevent invalid values. If you need help configuring this, use windows calculator and set it to programmer mode on Integer then click the bits you want to use, then use the integer value given.
"AppPrefs.xml" settings:
enableTorchOnAppLaunch - If true, opening the app will automatically set the brightness to the default value listed in "LEDPrefs.xml". Default is "false"
persistentNotif - If true, the notification will be persistent and it cannot be swiped away. Default is "false"
showNotifOnBootComplete - Posts the notification when BOOT_COMPLETE is received for easy access. Use with persistentNotif to prevent swiping away. Default is "true"
Notification Priorities. There are 5: MIN(-2), LOW(-1), DEFAULT(0), HIGH(1), and MAX(2). More info here: http://developer.android.com/design/patterns/notifications.html#guidelines
notifPriorityTorchON - Notification Priority when the LED is on. Default is "2"
notifPriorityTorchOFF - Notification Priority when the LED is off. Default is "-1". Versions before 2.0.3.41 including 1.x.x are hardcoded at "-2"
Important: Before changing any settings, be sure to kill ZTorch with a task manager. Otherwise the settings will not take effect and they will be overwritten when the app gets sent to the background.
If you mess up the settings ZTorch will force close on launch. Delete the XML file to restore defaults.
Strobe Light:
You can get some pretty cool stobbing effects by changing the "mask" and "max" settings.
If you set the "max" value to something like 200 with the mask set to 15 (0000-1111), when sliding the slidebar from 0 to 200, the actual brightness set will repeat 0-15 over and over.
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Setting Brightness from other apps such as Tasker, using ZTorch's BroadcastReceiver
I still have to test if this works, but in theory it should. The ZTorchReceiver supports the actions below.
Code:
"derekziemba.ztorch.UPDATE_LEVEL"; //Service will check for extra Integer under the key "lvl" and set that brightness if it is valid.
"derekziemba.ztorch.WIDGET_TAP"; //Behave as if the widget was just tapped. MultiTap, TapGuard, and Wait apply.
"derekziemba.ztorch.STEP_UP"; //Increment Brightness by increment value
"derekziemba.ztorch.STEP_DOWN"; //Decrement Brightness by increment value
"derekziemba.ztorch.INCREASE"; //Increase Brightness by 1
"derekziemba.ztorch.DECREASE"; //Decrease Brightness by 1
"derekziemba.ztorch.ENABLE"; //Turn on torch at default level
"derekziemba.ztorch.DISABLE"; //Turn off torch
"derekziemba.ztorch.TOGGLE"; //Toggle the torch opposite its current state.
---------------------------------Internal---------------------------
"derekziemba.ztorch.UPDATE_FROM_MAIN"; //From main activity, prevents service from broadcasting UPDATE_FROM_SERVICE and cause an endless loop. Contains extra Integer under key "lvl"
"derekziemba.ztorch.UPDATE_FROM_SERVICE"; //Sent from the Service to Main, this one is Unregistered when Main is not visible. It is still sent by the service.
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Important Note Regarding Brightness:
For default settings I have the max LED value set to 13 because I've experienced flicker. Values higher than 10 change the color of the slider to red and the widget and notification flame from yellow to fireball. Flicker occurs when your battery voltage is to low to support the current level of brightness.
To avoid LED flicker:
>3800+mV or ~50% is needed for Levels >=13.
> 3750mV or ~30% is needed for Levels > 9.
> 3600mV or ~10% is needed for Levels > 7.
I have used my app to work several hours in an attic at brightness 11. I used my phone because it's actually significantly brighter than every flashlight I own. That includes a flashlight with a 6V cell, a 3 LED headlamp, and a 4 battery AAA LED flashlight. My only light that beat it was my spotlight, but the spotlight's beam is too focused whereas the phone lights up everything.
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Note: Android displays the build version as 1 higher than the file name. So Android will show version 2.0.3.41 as 2.0.3.42. This is caused by some Gradle Build Config bug.

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I use the torch a lot so I just downloaded this and I'll definitely let you know how it goes. Thanks!
Verizon S4
Liquid Smooth 4.4
Sprint S4
Negalite 4.4

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Great app. Been using it for a few days with no issues. Love the incremental increases/decreases.
Anyway to get this to stay in the notification drop down?
Sent from my SCH-I545 using Tapatalk 2

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rahilkalim said:
Great app. Been using it for a few days with no issues. Love the incremental increases/decreases.
Anyway to get this to stay in the notification drop down?
Sent from my SCH-I545 using Tapatalk 2
Click to expand...
Click to collapse
I might be able to implement that as a setting quick when I get home. And maybe add an option to make it half height too if it's going to be persistent.

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DerekZ10 said:
I might be able to implement that as a setting quick when I get home. And maybe add an option to make it half height too if it's going to be persistent.
Click to expand...
Click to collapse
That would be great. Thanks.
Sent from my SCH-I545 using Tapatalk 2

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rahilkalim said:
That would be great. Thanks.
Sent from my SCH-I545 using Tapatalk 2
Click to expand...
Click to collapse
Just updated it. Here's what's new:
Settings Activity has had a makeover. The question mark on the side will explain what the settings do. The image on the left shows what it looks like if the Persistent Notification and the Minimizing Notification toggles are enabled. The right shows what it looks like with the Minimizing Notification toggle off. Notice that when the Minimizing Notification toggle is disabled, zTorch's icon is in the notification bar.
Here is what zTorch looks like in the notification drop down with minimization enabled. The left screenshot is with zTorch minimized. In this state the icon is not in the notification bar. The screenshot ion the right shows the notification expanded with the minimize option enabled, In this state the icon will show up in the notification bar.
Disabling Notification minimization but keeping Persistent notification enabled will cause the notification to appear like the left and middle screenshots. When the Torch is off, only an Activate LED button is present. If there are a large number of other notification, the notification will shrink up. With the Torch on more buttons become available as seen in the middle screenshot. The rightmost screenshot is the notification with both the persistent notification and notification minimization disabled.
Note: This version 1.2.0 has some rough edges. I'll polish it when I have more time. In the future the Settings activity will also be changed to an actual Android Settings layout instead of a generic layout.
EDIT: Version 1.2.1 rounds out those edges.

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Now that school is out, I'll be updating and posting the source code on github soon

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DerekZ10 said:
Now that school is out, I'll be updating and posting the source code on github soon
Click to expand...
Click to collapse
Great job, works great!

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This looks great. Do you have any plans to update this for nc5 4.4.2 compatibility?
Sent from my SCH-I545 using Tapatalk

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klabit87 said:
This looks great. Do you have any plans to update this for nc5 4.4.2 compatibility?
Sent from my SCH-I545 using Tapatalk
Click to expand...
Click to collapse
This is why I wanna get the source code up. So others can compile it for their versions. I'm running Android 4.2.2 Eclipse 2.0 Rom. It's all customized and set up the way I like, and it's been very reliable. I'm not sure when I will get around to upgrading. Every rom I have tried as a replacement has had problems.
I haven't got around to posting the source code because there was suddenly some issues with the build? I opened the project the other day and was told I needed to upgrade things, I did and now every object and include directive is underlined in red. I looked at it for about a minute before deciding I'll figure it out some other day. Haven't got around to it since.

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Oh ok. I was just wondering. Looking forward to the source so we can have it work for updated android versions someday.
Thanks.
Sent from my SCH-I545 using Tapatalk

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klabit87 said:
Oh ok. I was just wondering. Looking forward to the source so we can have it work for updated android versions someday.
Thanks.
Sent from my SCH-I545 using Tapatalk
Click to expand...
Click to collapse
Here's the Source Code Everyone, Good Luck! Everything for the project should be on GitHub including external libraries and the .psd files for the icons.
https://github.com/DerekZiemba/zTorch
I haven't been able to build this or other projects since upgrading the SDK and the Eclipse ADT. I'm not getting any errors, I just get "export build failed." Not sure what to do, maybe reinstall everything. Hopefully someone here can get it working. I just really don't have enough time. In fact the whole project was born out of procrastinating a huge report I didn't want to do for school.

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I have everything working again and the source code should build the most stable recent version. The 1.3 beta version is on my dropbox now. This version is a work in progress and the new TorchPlayer feature is not in a working state, but everything else works as usual.
I'm releasing this build before this new feature is working so people with newer versions of android can use the apps pre-existing features.
Here is basically what TorchPlayer is and how it will effect the app in future versions:
Once working properly it will be used to define increment steps for things such as rapid-tap and consecutive-tap (currently double-tap). The time element of these steps will define the max time the LED will stay lit before (likely) dropping down a step. It will be a way to prevent the LED being lit in your pocket all day and limiting the max LED brightness to a defined time.
TorchPlayer will eventually allow you to name and save sequences and have a repeat mode so you can use it as a strobe light. I'm not sure yet how fast the LED can be switched on and off. I might also look into having the sequence controlled by Morse code using dots and dashes.
For this to work I have to figure out, basically, multi-threading(handlers, runnables, threads) and a few other things such as Gson or SQLite.
NOTE: Installing this version messed up my widget. If it happens to you just delete it and re add it to fix.

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Shown below is version 1.3 beta 4. I've found that I can strobe the led light ridiculously fast. I haven't encountered the limit yet at even the 5 millisecond intervals. At 5millis the LED is flashing so fast that it is almost becoming steady. With this it may be possible to set custom "LightTones" for certain things like you do with ring tones.
EDIT:
Beta 5 added ability to duplicate several values to save on typing as seen below: Also note, the parenthesis and spaces don't actually matter and are only there to make it easier on me to read. The input is sanitized using: String scheme = behavior.replaceAll("[^0-9/sm,.*&]+",""); So only numbers, the letters s and m, and the symbols / , . * & matter. If a brightness value is out of range that command is ignored.
Here is a video of what the above TorchPlayer string yields.
https://www.youtube.com/watch?v=c1lwTHZwr-M&feature=youtu.be

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DerekZ10 said:
I have everything working again and the source code should build the most stable recent version. The 1.3 beta version is on my dropbox now. This version is a work in progress and the new TorchPlayer feature is not in a working state, but everything else works as usual.
I'm releasing this build before this new feature is working so people with newer versions of android can use the apps pre-existing features.
Here is basically what TorchPlayer is and how it will effect the app in future versions:
Once working properly it will be used to define increment steps for things such as rapid-tap and consecutive-tap (currently double-tap). The time element of these steps will define the max time the LED will stay lit before (likely) dropping down a step. It will be a way to prevent the LED being lit in your pocket all day and limiting the max LED brightness to a defined time.
TorchPlayer will eventually allow you to name and save sequences and have a repeat mode so you can use it as a strobe light. I'm not sure yet how fast the LED can be switched on and off. I might also look into having the sequence controlled by Morse code using dots and dashes.
For this to work I have to figure out, basically, multi-threading(handlers, runnables, threads) and a few other things such as Gson or SQLite.
NOTE: Installing this version messed up my widget. If it happens to you just delete it and re add it to fix.
Click to expand...
Click to collapse
For some reason the toggle doesn't show in my drop down now, any ideas?

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shindiggity said:
For some reason the toggle doesn't show in my drop down now, any ideas?
Click to expand...
Click to collapse
Just confirmed it is a bug. To get the notification to show you need to switch the torch on once. It'll stay in the dropdown after.
I'll try to get a new build together soon. I learned a few things about Android the other day that made me realize my code was overly complicated and difficult to work with, much more so than it ever needed to be. So I actually started a total rewrite since that version that I want to get perfect.
The new version is a different app all together, the system and launcher will see it as zTorch-L. The L stands for it really being the "Lite" version, in app it will refer to it self as zTorch-Lightning. I decided that the TorchPlayer feature went against the whole purpose of making my own app in the first place. I created it to be fast, simple, no-bs or bugs, do one thing and do it well. What I wanted out of TorchPlayer would cause the app to loose focus of its goal, so I started this new version that would be just that.
Because I want it to be totally finished before releasing, I'm not going to post a link to it here. The code wouldn't even compile if I tried. But if you really rely on the notification being in the dropdown PM me. I have an alpha version I compiled before going to far in to rewriting the code. Everything works great AFTER some tweaking first.
Initially it is inoperable unless, starting from the root directory, you navigate to the following file:
Code:
/data/data/derekziemba.ztorchL/shared_prefs/derekziemba.ztorchL_preferences.xml
Open it, delete what ever is in it, then paste the below text :
Code:
<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<map>
<int name="flash_current_value" value="0" />
<int name="tap_time" value="900" />
<int name="brightness_increment_steps" value="3" />
<int name="default_value" value="8" />
<int name="flash_limit_value" value="13" />
<boolean name="rapid_tap" value="true" />
<boolean name="persistent_notif" value="true" />
<boolean name="mini_notif" value="true" />
</map>

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I sent you a PM, be happy too.
DerekZ10 said:
Just confirmed it is a bug. To get the notification to show you need to switch the torch on once. It'll stay in the dropdown after.
I'll try to get a new build together soon. I learned a few things about Android the other day that made me realize my code was overly complicated and difficult to work with, much more so than it ever needed to be. So I actually started a total rewrite since that version that I want to get perfect.
The new version is a different app all together, the system and launcher will see it as zTorch-L. The L stands for it really being the "Lite" version, in app it will refer to it self as zTorch-Lightning. I decided that the TorchPlayer feature went against the whole purpose of making my own app in the first place. I created it to be fast, simple, no-bs or bugs, do one thing and do it well. What I wanted out of TorchPlayer would cause the app to loose focus of its goal, so I started this new version that would be just that.
Because I want it to be totally finished before releasing, I'm not going to post a link to it here. The code wouldn't even compile if I tried. But if you really rely on the notification being in the dropdown PM me. I have an alpha version I compiled before going to far in to rewriting the code. Everything works great AFTER some tweaking first.
Initially it is inoperable unless, starting from the root directory, you navigate to the following file:
Code:
/data/data/derekziemba.ztorchL/shared_prefs/derekziemba.ztorchL_preferences.xml
Open it, delete what ever is in it, then paste the below text :
Code:
<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<map>
<int name="flash_current_value" value="0" />
<int name="tap_time" value="900" />
<int name="brightness_increment_steps" value="3" />
<int name="default_value" value="8" />
<int name="flash_limit_value" value="13" />
<boolean name="rapid_tap" value="true" />
<boolean name="persistent_notif" value="true" />
<boolean name="mini_notif" value="true" />
</map>
Click to expand...
Click to collapse

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shindiggity said:
I sent you a PM, be happy too.
Click to expand...
Click to collapse
So you guys don't have to keep using that version if you don't want to, try the zTorch-Lightning_v1.Alpha2 . There's a lot of stuff to do yet, but all the basics are working.
You'll notice the notification is way more responsive and that it no longer does that thing "refresh flash" when switching to different notification styles. It responds instantly to setting changes now too.
When tapping the 1x1 incremental widget, the LED is now set to turn on before the system broadcast and before the on screen widget lights up instead of the other way around.
http://db.orangedox.com/FBzt4wNNfVu1xIMc0W/zTorch-Lightning_v1.Alpha2.apk

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This is just what i have been looking for!! So what kind of licensing is your code on git under?
Adjustable flash brightness is just what i want to look adding to my Camera app. I need something lower intensity than the stock.
Unfortunately, I am unable to test this app as my rooted devices don't have flash.

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hotspot_volcano said:
This is just what i have been looking for!! So what kind of licensing is your code on git under?
Adjustable flash brightness is just what i want to look adding to my Camera app. I need something lower intensity than the stock.
Unfortunately, I am unable to test this app as my rooted devices don't have flash.
Click to expand...
Click to collapse
Free to use as long as you don't repackage it as is but with ads or put a price on the app. However if you are creating your own app and just want to use the flashlight feature, you can use the below code however you want. I think the git code is way out of date, I worked on it a bit a while ago and I don't think I comited it. I've gotten busy and haven't had a chance to work on it in months.
Here is the code for directly changing the brightness. Free to Use however you wish.
Here is the Shell Class. The Static Methods create and maintain the superuser shell. Therefor a command can be executed app wide on a single shell instead of creating multiple Shell instances.
Code:
package derekziemba.misc;
import java.io.*;
public class Shell {
private static Shell rootShell = null;
private final Process proc;
private final OutputStreamWriter writer;
private Shell() throws IOException {//Open with Root Privileges
this.proc = new ProcessBuilder("su").redirectErrorStream(true).start();
this.writer = new OutputStreamWriter(this.proc.getOutputStream(), "UTF-8");
}
private void cmd(String command) {
try{ writer.write(command+'\n'); writer.flush();}
catch(IOException e) { }
}
public void close() {
try {
if (writer != null) { writer.close();
if(proc != null) { proc.destroy(); }
}
} catch (IOException ignore) {}
}
public static void exec(String command) { Shell.get().cmd(command); }
public static Shell get() {
if (rootShell == null) {
while (rootShell == null) {
try { rootShell = new Shell(); }
catch (IOException e) { }
}
}
return rootShell;
}
}
}
Here is what is used for setting the flash brightness. I stripped out all the app logic. SetLevelCovertly is the actual method used for setting the brightness. It is what the TorchPlayer uses to directly change the brightness in just milliseconds. The stripped away normal SetLevel method records the brightness, triggers the broadcasts, sets the widgets, and fires the notification. There is no way of getting the current flashlevel brightness since my Shell implementation is just for blasting commands at the terminal. Anything more will slow it down.
The listOfFlashFiles is a bunch of different files different phones may use. I've only ever tested the samsung file.
Code:
import java.io.File;
import derekziemba.misc.Shell;
public class Torch
{
private static String FLASH_FILE = null;
private static final String[] listOfFlashFiles = {
"/sys/class/camera/flash/rear_flash",
"/sys/class/camera/rear/rear_flash",
"/sys/class/leds/flashlight/brightness",
"/sys/devices/platform/flashlight.0/leds/flashlight/brightness",
"/sys/class/leds/spotlight/brightness",
"/sys/class/leds/torch-flash/flash_light"
};
/**
* Bypasses all checks and settings and just sets the value. The app will not know what the level is because it is not recorded.
* Will not trigger broadcast, widget views, notification
*/
public static void setLevelCovertly(int value) { Shell.exec("echo " + value + " > "+ getSysFsFile()); }
public static String getSysFsFile() {
if (FLASH_FILE != null) return FLASH_FILE;
for (String filePath : listOfFlashFiles) {
File flashFile = new File(filePath);
if (flashFile.exists()) { FLASH_FILE = filePath; }
}
return FLASH_FILE;
}