使用展锐提供的代码编译出来的固件，不包含DeskClock等应用。

之前也遇到过这个情况，只是时间太久忘记了，在这里再次记录！

frameworks/native/data/etc/android.app.remove.xml<?xml version="1.0" encoding="utf-8"?><permissions><customized-restricted-app config="persist.remove.app"  value="1"><!-- <path name="Messages"/><path name="messaging"/><path name="MessagesGo"/> --><path name="FMRadio"/><path name="SprdFMRadio"/><path name="DreamFMRadioPrebuilt"/><path name="DreamSoundRecorderPrebuilt"/><path name="Email2"/><path name="GMailGo"/><path name="GMailGo_1G"/><path name="Gmail2"/><path name="Gmail2_2G"/><path name="DeskClock"/>  需要去掉<path name="SprdDeskClock"/><path name="DeskClockGoogle"/><path name="SprdCalendar"/><path name="SprdCalendarProvider"/><path name="SprdCalendarProviderPrebuilt"/><path name="Calendar"/><path name="CalendarGoogle"/></customized-restricted-app>
</permissions>

然后记录一下原因。

首先日志检索  DeskClock 发现只有这么三行，很好定位到源码。

18:11:19.933 SystemConfig              D  readCustomizedRestrictedPathsByConfig DeskClock, apkType = 0
18:11:19.934 SystemConfig              D  readCustomizedRestrictedPathsByConfig SprdDeskClock, apkType = 0
18:11:19.935 SystemConfig              D  readCustomizedRestrictedPathsByConfig DeskClockGoogle, apkType = 0
 

         从xml文件中读取权限651     private void readPermissionsFromXml(File permFile, int permissionFlag) {652         FileReader permReader = null;653         try {654             permReader = new FileReader(permFile);655         } catch (FileNotFoundException e) {656             Slog.w(TAG, "Couldn't find or open permissions file " + permFile);657             return;658         }659         Slog.i(TAG, "Reading permissions from " + permFile);660 661         final boolean lowRam = ActivityManager.isLowRamDeviceStatic();662 663         try {664             XmlPullParser parser = Xml.newPullParser();665             parser.setInput(permReader);666 667             int type;668             while ((type=parser.next()) != parser.START_TAG669                        && type != parser.END_DOCUMENT) {670                 ;671             }682             final boolean allowAll = permissionFlag == ALLOW_ALL;686             final boolean allowAppConfigs = (permissionFlag & ALLOW_APP_CONFIGS) != 0;687             final boolean allowPrivappPermissions = (permissionFlag & ALLOW_PRIVAPP_PERMISSIONS)688                     != 0;689             final boolean allowOemPermissions = (permissionFlag & ALLOW_OEM_PERMISSIONS) != 0;690             final boolean allowApiWhitelisting = (permissionFlag & ALLOW_HIDDENAPI_WHITELISTING)698             while (true) {699                 XmlUtils.nextElement(parser);700                 if (parser.getEventType() == XmlPullParser.END_DOCUMENT) {701                     break;702                 }703 704                 String name = parser.getName();705                 if (name == null) {706                     XmlUtils.skipCurrentTag(parser);707                     continue;708                 }709                 switch (name) {
...可以看出customized-restricted-app就是获取xml文件中的name
1277                     case "customized-restricted-app": {
1278                         String config = parser.getAttributeValue(null, "config");
1279                         String value = parser.getAttributeValue(null, "value");
1280                         if (TextUtils.isEmpty(config) || TextUtils.isEmpty(value)) {
1281                             Slog.w(TAG, "Tag config" + config + " or value " + value + " in "
1282                                 + permFile + " at " + parser.getPositionDescription() + " is empty");
1283                             XmlUtils.skipCurrentTag(parser);
1284                         }
1285                         List<String> restrictedPermission = Arrays.asList(config, value);
1286                         mCustomizedRestrictedPaths.put(restrictedPermission,
1287                                 readCustomizedRestrictedPathsByConfig(parser));
1288 
1289                     } break;读取限制的xml文件
1676     private HashMap<String, Integer> readCustomizedRestrictedPathsByConfig(XmlPullParser parser)
1677             throws IOException, XmlPullParserException {
1678         HashMap<String, Integer> customizedRestrictedPaths = new HashMap<String, Integer>();
1679         int packageDepth = parser.getDepth();
1680         int type;
1681         int depth = parser.getDepth();
1682         while (XmlUtils.nextElementWithin(parser, depth)) {
1683             String tagName = parser.getName();
1684             if (tagName.equals("path")) {
1685                 String name = parser.getAttributeValue(null, "name");
1686                 Integer apkType = 0;
1687                 try {
1688                     apkType = Integer.valueOf(parser.getAttributeValue(null, "type"));
1689                 } catch (NumberFormatException e) {
1690                 }日志在这里打印
1691                 Slog.d(TAG, "readCustomizedRestrictedPathsByConfig " + name +
1692                         ", apkType = " + apkType);
1693                 customizedRestrictedPaths.put(name, apkType);
1694             } else {
1695                 Slog.w(TAG, "Unknown element under <customized-restricted-app>: "
1696                       + parser.getName());
1697             }
1698         }
1699         return customizedRestrictedPaths;
1700     }

然后检索一下 customized-restricted-app

来看一下定义

device/sprd/xxx/xxx/module/app/md.mk#add for not install unused app
PRODUCT_PRODUCT_PROPERTIES += persist.remove.app=1
PRODUCT_COPY_FILES += \frameworks/native/data/etc/android.app.remove.xml:product/etc/permissions/android.app.remove.xml