Comments on Tutorial For Android: Changing the Screen Brightness Programatically

hey i need to build a jar file from the internal c...

2011-03-30T13:29:16.552+08:00

hey i need to build a jar file from the internal classes present in android.os, how i can do that please help me

hi admin...! how to creat a jar file that u did, e...

2011-03-29T19:28:41.833+08:00

hi admin...!
how to creat a jar file that u did, even i would like to use unimported packages in my application.

the link to cupcake at the top should be: http://w...

2010-05-05T16:25:48.824+08:00

the link to cupcake at the top should be:
http://www.tutorialforandroid.com/2009/05/changing-screen-brightness.html

How do you make this in widgets?

2009-12-22T09:39:32.000+08:00

How do you make this in widgets?

Marc, i just got it from http://code.google.com/p/apps-for-android/ if you looking to unlock more android functions this might help you too Calling private methods in Android

update: should be http://code.google.com/p/openintents/

The implementation of the IHardwareService that is...

2009-12-01T07:27:29.000+08:00

The implementation of the IHardwareService that is provided here has worked wonders on all kinds of fronts.

Can you tell me where you acquired the hardware09.jar file? Are there other files like it that allow access/interface with other hidden classes? Did you compile that jar file yourself? If so, how did you do it?

I'm looking to unlock more android functions that have been hidden away.

Thanks,

Marc

Thanks for replay..
I saw that method in your &...

2009-10-16T00:51:49.000+08:00

Thanks for replay..
I saw that method in your "Changing the Screen Brightness Programatically in Cupcake" article.
It works very well but only for one window.

Not only just one activity, I want to change system brightness permanently.

Like your bightness change toggle widget.
Thanks in advance :)

try this one:

WindowManager.LayoutParams lp...

2009-10-15T22:56:05.000+08:00

try this one:

WindowManager.LayoutParams lp=yourActivity.getWindow().getAttributes();
// SDK 1.5 call:
//lp.screenBrightness=val;
try {
fieldScreenBrightness.setFloat(lp, val);
} catch (IllegalAccessException e) {
Log.d("BrightnessNew for SDK 1.5", "Setting brightness failed");
}
yourActivity.getWindow().setAttributes(lp);

Source: http://code.google.com/p/openintents/source/browse/trunk/Flashlight/src/org/openintents/flashlight/BrightnessNew.java

I am try to change system brightness setting. NOT ...

2009-10-15T18:02:13.000+08:00

I am try to change system brightness setting. NOT LayoutParams for just one window in SDK 1.5 r3.

I changed library files (hardware09.jar) to recent cupcake classes and tried this sample. Then It does not work and throw an exception

10-15 10:52:41.087: ERROR/AndroidRuntime(4420): Caused by: java.lang.SecurityException: Requires HARDWARE_TEST permission

However, I have asked for the permission in AndroidManifest.xml definetly.

I could find interesting warning which state permission is not granted.
10-15 10:52:37.397: WARN/PackageManager(56): Not granting permission android.permission.HARDWARE_TEST to package com.monmonja.firstDemo (protectionLevel=2 flags=0x44)

Some says HARDWARE_TEST permission is not allowed to third party app but I know there are bunch of application that support brightness change in cupcake.

I spent too much time for googling and I am getting tired :(

please please show me the way!

thanks for the quick reply.
But I do not have a...

2009-06-06T01:34:47.000+08:00

thanks for the quick reply.
But I do not have a window.I just wanted to right simple program which modifies the window brightness.

please see this post http://almondmendoza.com/2009/05/23/changing-the-screen-brightness-programatically-in-cupcake/ tnx

I am using 1.5 sdk.

2009-06-06T00:55:25.000+08:00

I am using 1.5 sdk.

Are you developing using cupcake or 1.5?

2009-06-05T23:28:55.000+08:00

Are you developing using cupcake or 1.5?

I am using Android sdk1.5 r1 patch.. tried the bel...

2009-06-05T23:24:11.000+08:00

I am using Android sdk1.5 r1 patch.. tried the below on emulator.

I did as you have suggested. included hardware09.jar as you have mentioned,
compilation has no problem but executing it has.

D/installd( 539): DexInv: --- BEGIN '/data/app/vmdl13614.tmp' ---
D/dalvikvm( 707): DexOpt: 'Landroid/os/IInterface;' has an earlier definition; blocking out
D/dalvikvm( 707): DexOpt: 'Landroid/os/IHardwareService;' has an earlier definition; blocking out
D/dalvikvm( 707): DexOpt: 'Landroid/os/IHardwareService$Stub$Proxy;' has an earlier definition; blocking out
D/dalvikvm( 707): DexOpt: 'Landroid/os/IHardwareService$Stub;' has an earlier definition; blocking out
D/dalvikvm( 707): DexOpt: 'Landroid/os/RemoteException;' has an earlier definition; blocking out
D/dalvikvm( 707): DexOpt: 'Landroid/os/ServiceManager;' has an earlier definition; blocking out
D/dalvikvm( 707): DexOpt: 'Landroid/os/ServiceManagerNative;' has an earlier definition; blocking out
D/dalvikvm( 707): DexOpt: 'Landroid/os/ServiceManagerProxy;' has an earlier definition; blocking out
D/dalvikvm( 707): DexOpt: not verifying 'Landroid/os/IInterface;': multiple definitions
D/dalvikvm( 707): DexOpt: not verifying 'Landroid/os/IHardwareService;': multiple definitions
D/dalvikvm( 707): DexOpt: not verifying 'Landroid/os/IHardwareService$Stub$Proxy;': multiple definitions
D/dalvikvm( 707): DexOpt: not verifying 'Landroid/os/IHardwareService$Stub;': multiple definitions
D/dalvikvm( 707): DexOpt: not verifying 'Landroid/os/RemoteException;': multiple definitions
D/dalvikvm( 707): DexOpt: not verifying 'Landroid/os/ServiceManager;': multiple definitions
D/dalvikvm( 707): DexOpt: not verifying 'Landroid/os/ServiceManagerNative;': multiple definitions
D/dalvikvm( 707): DexOpt: not verifying 'Landroid/os/ServiceManagerProxy;': multiple definitions
I/dalvikvm( 707): DexOpt: not resolving ambiguous class 'Landroid/os/ServiceManager;'
D/dalvikvm( 707): DexOpt: load 59ms, verify 43ms, opt 1ms
D/installd( 539): DexInv: --- END '/data/app/vmdl13614.tmp' (success) ---
.
.
W/PackageManager( 565): Not granting permission android.permission.HARDWARE_TEST to package com.MyService (protectionLevel=2 flags=0x44)
.
.
E/dalvikvm( 720): Could not find method android.os.IHardwareService.setScreenBacklight, referenced from method com.MyService.app.MyServiceTest.testIsMyTest
W/dalvikvm( 720): VFY: unable to resolve interface method 41: Landroid/os/IHardwareService;.setScreenBacklight (I)V
W/dalvikvm( 720): VFY: rejecting opcode 0x72 at 0x0039

Any input would be of great help.
Thanks,
krt

hardware09.jar looks fine but when I reference it ...

2009-05-29T03:06:18.000+08:00

hardware09.jar looks fine but when I reference it in my projects it compiles fine but during load and start i get the following errors and exceptions:

DexOpt: 'Landroid/os/IInterface;' has an earlier definition; blocking out
DexOpt: 'Landroid/os/IHardwareService;' has an earlier definition; blocking out
DexOpt: 'Landroid/os/IHardwareService$Stub$Proxy;' has an earlier definition; blocking out
DexOpt: 'Landroid/os/IHardwareService$Stub;' has an earlier definition; blocking out
DexOpt: 'Landroid/os/RemoteException;' has an earlier definition; blocking out
DexOpt: 'Landroid/os/ServiceManager;' has an earlier definition; blocking out
DexOpt: 'Landroid/os/ServiceManagerNative;' has an earlier definition; blocking out
DexOpt: 'Landroid/os/ServiceManagerProxy;' has an earlier definition; blocking out
DexOpt: not verifying 'Landroid/os/IInterface;': multiple definitions
DexOpt: not verifying 'Landroid/os/IHardwareService;': multiple definitions
DexOpt: not verifying 'Landroid/os/IHardwareService$Stub$Proxy;': multiple definitions
DexOpt: not verifying 'Landroid/os/IHardwareService$Stub;': multiple definitions
DexOpt: not verifying 'Landroid/os/RemoteException;': multiple definitions
DexOpt: not verifying 'Landroid/os/ServiceManager;': multiple definitions
DexOpt: not verifying 'Landroid/os/ServiceManagerNative;': multiple definitions
DexOpt: not verifying 'Landroid/os/ServiceManagerProxy;': multiple definitions
DexOpt: not resolving ambiguous class 'Landroid/os/ServiceManager;'

Uncaught handler: thread main exiting due to uncaught exception
java.lang.VerifyError: net.abc.xzy
at net.abc.xzy.do(do.java:116)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2231)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2284)
at android.app.ActivityThread.access$1800(ActivityThread.java:112)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:3948)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
at dalvik.system.NativeStart.main(Native Method)

[...] Almond Mendoza - Changing the Screen Brightn...

2009-05-20T03:16:28.000+08:00

[...] Almond Mendoza - Changing the Screen Brightness Programatically [...]

To get the current brightness level just request i...

2009-04-23T07:00:59.000+08:00

To get the current brightness level just request it from the systems settings: Settings.System.getInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS);

Great article!!

One question though. Is the...

2009-03-12T06:33:42.000+08:00

Great article!!

One question though. Is there anyway to get the screen brightness so that I can restore it to what it was before I changed it?

Comments on Tutorial For Android: Changing the Screen Brightness Programatically

hey i need to build a jar file from the internal c...

hi admin...! how to creat a jar file that u did, e...

the link to cupcake at the top should be: http://w...

How do you make this in widgets?

Marc, i just got it from http://code.google.com/p/apps-for-android/ if you looking to unlock more android functions this might help you too Calling private methods in Androidupdate: should be http://code.google.com/p/openintents/

The implementation of the IHardwareService that is...

Thanks for replay..I saw that method in your &...

try this one:WindowManager.LayoutParams lp...

I am try to change system brightness setting. NOT ...

thanks for the quick reply.But I do not have a...

please see this post http://almondmendoza.com/2009/05/23/changing-the-screen-brightness-programatically-in-cupcake/ tnx

I am using 1.5 sdk.

Are you developing using cupcake or 1.5?

I am using Android sdk1.5 r1 patch.. tried the bel...

hardware09.jar looks fine but when I reference it ...

[...] Almond Mendoza - Changing the Screen Brightn...

To get the current brightness level just request i...

Great article!!One question though. Is the...

Marc, i just got it from http://code.google.com/p/apps-for-android/ if you looking to unlock more android functions this might help you too Calling private methods in Android

update: should be http://code.google.com/p/openintents/

Thanks for replay..
I saw that method in your &...

try this one:

WindowManager.LayoutParams lp...

thanks for the quick reply.
But I do not have a...

Great article!!

One question though. Is the...