android 字体大小

android的默认字体大小的修改：

frameworks\base\core\java\android\content\res\Configuration.java

public void setToDefaults() {
        fontScale = 1;
        mcc = mnc = 0;
        locale = null;
        userSetLocale = false;
        simSetLocale = false; /// M: SIM Locale feature
        touchscreen = TOUCHSCREEN_UNDEFINED;
        keyboard = KEYBOARD_UNDEFINED;
        keyboardHidden = KEYBOARDHIDDEN_UNDEFINED;
        hardKeyboardHidden = HARDKEYBOARDHIDDEN_UNDEFINED;
        navigation = NAVIGATION_UNDEFINED;
        navigationHidden = NAVIGATIONHIDDEN_UNDEFINED;
        orientation = ORIENTATION_UNDEFINED;
        screenLayout = SCREENLAYOUT_UNDEFINED;
        uiMode = UI_MODE_TYPE_UNDEFINED;
        screenWidthDp = compatScreenWidthDp = SCREEN_WIDTH_DP_UNDEFINED;
        screenHeightDp = compatScreenHeightDp = SCREEN_HEIGHT_DP_UNDEFINED;
        smallestScreenWidthDp = compatSmallestScreenWidthDp = SMALLEST_SCREEN_WIDTH_DP_UNDEFINED;
        densityDpi = DENSITY_DPI_UNDEFINED;
        seq = 0;
        skin = null; /// M: Theme feature
    }

修改fontScale  注意类型（整形 浮点型 ）