How to remove the battery icon in android status bar?

I've removed the status bar which shows network, battery and time information in Android by take off the background image. But the icons are still开发者_JAVA百科 there. Just wanna know how to remove the battery icon as well.

Not for apps but for framework development. Thanks in advance.

Have you tried to call

   getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

in Activity onCreate() ?

If you are working on Android 2.2, you can remove it by the following step.

1. Find StatusBarPolicy.java
2. Find mBatteryIcon and add service.setIconVisibility(mBatteryIcon , false); for it.
3. Remove all actions relevant to battery in the intent-filter