Home/ Questions/Q 8327211
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-09T01:01:57+00:00

In my application, I need to change the screen backlight for testing. I am

  • 0

In my application, I need to change the screen backlight for testing. I am atm using API 15 with the external jar Hardware09.jar which has a method called setScreenBacklight(int value).

However when I tried to use it I have an error message like this:

01-01 00:48:24.570: E/AndroidRuntime(2171): java.lang.NoSuchMethodError: android.os.IHardwareService.setScreenBacklight

I dont know what to do in that situation. Is there a way to use that external jar or are there any other ways to control backlight?

Thanks in advance.

This is the screenshot of java build path.

enter image description here

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team
    float BackLightValue = (float)value/100; //value is the integer that test station pass to apk

WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
layoutParams.screenBrightness = BackLightValue;
getWindow().setAttributes(layoutParams);

    Using that block of code, I manage to manipulate backlight. However I am currently thinking that way wont actually manipulate backlight rather screen brightness.

    • 0