背光調節亮度默認值修改

1、packages/apps/Settings/res/layout/preference_dialog_brightness.xml 進行背光調節dialog進行布局。 2、packages/apps/Settings/src/com/android/settings/BrightnessPreference.java 獲取默認值供系統使用 private int getBrightness(int defaultValue) {         int brightness = defaultValue;         try {              brightness = Settings.System.getInt(getContext().getContentResolver(),                     Settings.System.SCREEN_BRIGHTNESS);          } catch (SettingNotFoundException snfe) {          }         return brightness;      } 3、frameworks/base/packages/SettingsProvider/res/values/defaults.xml設置默認值 <integer name="def_screen_brightness">179</integer>//默認值 編譯模塊 mm frameworks/base/packages/SettingsProvider/ adb push system/app/SettingsProvider.apk 恢復出廠設置就可以看到修改的默認值了