前言

去年在高通平台上的加过一次这种自定义framework级别的资源包，今年在MTK平台又部署了一次，当然第二次就比较轻车熟路了；趁现在编译时间，把这次的部署，完整记录一下吧。

自定义framework资源的 packing&accessing

首先，我们先明确这么做的目的是，将公司自定义的一些图片文字样式等资源独立与平台；这样可以与平台代码区分；这么做的好处就是，方便以后每个os的升级，在移植上的工作量相对减少。以下为具体的操作步骤：

建立自定义资源目录结构
在vendor目录下，建立一个与framework res类似路径的资源文件夹’vendor\zowee\proprietary\framework\base\res’；目录结构如下图

编写Android.mk文件，模块名称LOCAL_PACKAGE_NAME := zowee-res，资源flag 3~9可用LOCAL_AAPT_FLAGS := -x3；LOCAL_NO_ZOWEE := true

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
# include apicheck.mk later, we need the build pass to prepare the first version
# include $(LOCAL_PATH)/apicheck.mk
LOCAL_PACKAGE_NAME := zowee-res
LOCAL_CERTIFICATE := platform
LOCAL_AAPT_FLAGS := -x3

# Tell aapt to build resource in utf16(the ROM will be enlarged),
# in order to save RAM size for string cache table
ifeq (yes,strip$(MTK_GMO_RAM_OPTIMIZE))
LOCAL_AAPT_FLAGS += --utf16
endif

#LOCAL_NO_MTKRES := true
LOCAL_NO_ZOWEE := true
LOCAL_MODULE_TAGS := optional
# Install this alongside the libraries.
LOCAL_MODULE_PATH := $(TARGET_OUT_JAVA_LIBRARIES)
# Create package-export.apk, which other packages can use to get
# PRODUCT-agnostic resource data like IDs and type definitions.
LOCAL_EXPORT_PACKAGE_RESOURCES := true	
include $(BUILD_PACKAGE)

# define a global intermediate target that other module may depend on.
.PHONY: zowee-res-package-target
zowee-res-package-target: $(LOCAL_BUILT_MODULE)

AndroidManifest.xml文件，代码可参考：

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.zowee" android:sharedUserId="android.uid.system"
</manifest>

修改\device\mediatek\common下device.mk，将新的资源模块添加到system img中

# for mediatek-res
PRODUCT_PACKAGES += mediatek-res
	
# for zowee-ress
PRODUCT_PACKAGES += zowee-res

修改Z:\MT5505\alps\frameworks\base\libs\androidfw下的Assetmanager.cpp，将新的资源模块添加的默认的assets路径中

///M:add the resource path
static const char* kMediatekAssets = "framework/mediatek-res/mediatek-res.apk";
static const char* kZoweeAssets = "framework/zowee-res/zowee-res.apk";
....
 ///M:add the new resource path into default path,so all the app can reference,@{	
bool isOK1 =addAssetPath(path, NULL);
String8 path2(root);
path2.appendPath(kMediatekAssets);
bool isOK2 =addAssetPath(path2, NULL);
if(!isOK2){
  ALOGW("AssetManager-->addDefaultAssets isok2 is false");
}

String8 path3(root);
path3.appendPath(kZoweeAssets);
bool isOK3 =addAssetPath(path3, NULL);
if(!isOK3){
  ALOGW("AssetManager-->addDefaultAssets isok3 is false");
}else{
	 ALOGW("AssetManager-->addDefaultAssets isok3 is true");
}
return isOK1;

修改alps\build\core下的package_internal.mk，添加编译依赖关系等

resource_export_package := $(intermediates.COMMON)/package-export.apk
$(R_file_stamp): $(resource_export_package)
$(call intermediates-dir-for,APPS,mediatek-res,,COMMON)/package-export.apk:$(call intermediates-dir-for,APPS,framework-res,,COMMON)/src/R.stamp
$(call intermediates-dir-for,APPS,zowee-res,,COMMON)/package-export.apk:$(call intermediates-dir-for,APPS,mediatek-res,,COMMON)/src/R.stamp
........
mediatek_res_package_export :=
mediatek_res_package_export_deps :=
  ifneq ($(LOCAL_NO_MTKRES), true)
    mediatek_res_package_export += \
      $(call intermediates-dir-for,APPS,mediatek-res,,COMMON)/package-export.apk
      mediatek_res_package_export_deps += \
      $(call intermediates-dir-for,APPS,mediatek-res,,COMMON)/src/R.stamp
      
      ifneq ($(LOCAL_NO_ZOWEE), true)
       mediatek_res_package_export += \
          $(call intermediates-dir-for,APPS,zowee-res,,COMMON)/package-export.apk
       mediatek_res_package_export_deps += \
          $(call intermediates-dir-for,APPS,zowee-res,,COMMON)/src/R.stamp
      endif
  endif
......
$(filter-out $(mediatek_res_package_export),$(resource_export_package)): $(mediatek_res_package_export_deps)
$(R_file_stamp): $(mediatek_res_package_export_deps)
$(resource_export_package) $(R_file_stamp) $(LOCAL_BUILT_MODULE): $(all_library_res_package_export_deps)
$(LOCAL_INTERMEDIATE_TARGETS): \
    PRIVATE_AAPT_INCLUDES := $(all_library_res_package_exports) $(mediatek_res_package_export)
endif # LOCAL_NO_STANDARD_LIBRARIES

修改alps\frameworks\base下Android.mk将资源路径添加的编译路径中

framework_res_source_path := APPS/framework-res_intermediates/src
# M:add mediatek resource path
mediatek-res-source-path := APPS/mediatek-res_intermediates/src
zowee-res-source-path := APPS/zowee-res_intermediates/src
.......
LOCAL_INTERMEDIATE_SOURCES += \
      $(zowee-res-source-path)/com/zowee/R.java \
      $(zowee-res-source-path)/com/zowee/Manifest.java \
      $(zowee-res-source-path)/com/zowee/internal/R.java \
			$(mediatek-res-source-path)/com/mediatek/internal/R.java \
			$(mediatek-res-source-path)/com/mediatek/R.java \
			$(mediatek-res-source-path)/com/mediatek/Manifest.java 
# @}
......
zowee_res_R_stamp := \
	$(call intermediates-dir-for,APPS,zowee-res,,COMMON)/src/R.stamp
$(full_classes_compiled_jar): $(zowee_res_R_stamp)

Z:\MT5505\alps\build\core clear_vars.mk添加LOCAL_NO_ZOWEE :=

修改alps\frameworks\base\services\core\java\com\android\server\pm
PackageManagerService.java，不对新的资源apk进行 dexopted

alreadyDexOpted.add(frameworkDir.getPath() + "/framework-res.apk");

/// M: This file doesn't contain any code,just like framework-res,so don't dexopt it
alreadyDexOpted.add(frameworkDir.getPath() + "/mediatek-res/mediatek-res.apk");
alreadyDexOpted.add(frameworkDir.getPath() + "/zowee-res/zowee-res.apk");

/** M: [CIP] Add CIP scanning path variable @{ */
File customFrameworkDir = new File("/custom/framework");
/// M: [CIP] Add custom resources to libFiles to avoid dex opt.
alreadyDexOpted.add(customFrameworkDir.getPath() + "/framework-res.apk");
alreadyDexOpted.add(customFrameworkDir.getPath() + "/mediatek-res.apk");
alreadyDexOpted.add(customFrameworkDir.getPath() + "/zowee-res.apk");
/** @} */

针对L版本，还需要修个alps\frameworks\base\libs\androidfw for L 版本
ResourceTypes.cpp 主要是对资源id的查找映射表

#define APP_PACKAGE_ID      0x7f
#define SYS_MTK_PACKAGE_ID  0x08 /// M: 0x08 is mediatek-res.apk resource ID
#define SYS_ZOWEE_PACKAGE_ID  0x03 /// M: 0x03 is zowee-res.apk resource ID
#define SYS_PACKAGE_ID      0x01
.......
 if (packageId != APP_PACKAGE_ID && packageId != SYS_PACKAGE_ID && packageId != SYS_MTK_PACKAGE_ID
                	&& packageId != SYS_ZOWEE_PACKAGE_ID) {
                    outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
                }
......
else if (packageId == APP_PACKAGE_ID || packageId == SYS_PACKAGE_ID || packageId == SYS_MTK_PACKAGE_ID
                    	|| packageId == SYS_ZOWEE_PACKAGE_ID) {

......
mLookupTable[APP_PACKAGE_ID] = APP_PACKAGE_ID;
    mLookupTable[SYS_PACKAGE_ID] = SYS_PACKAGE_ID;
    mLookupTable[SYS_ZOWEE_PACKAGE_ID] = SYS_ZOWEE_PACKAGE_ID;
    mLookupTable[SYS_MTK_PACKAGE_ID] = SYS_MTK_PACKAGE_ID;

自定义资源的添加和访问

在自定义资源目录下，像普通的应用一样，添加values/strings.xml等字符串，颜色等资源，编译之后，在out目录下的APPS intermediate文件中，将生成的public_resource.xml文件中，需要开放权限，作为外部访问的添加到资源目录下的values/public.xml中

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<resources>
  <!-- Declared at vendor/zowee/proprietary/framework/base/res/res/values/strings.xml:23 -->
  <public type="string" name="zowee" id="0x03020000" />
  <!-- Declared at vendor/zowee/proprietary/framework/base/res/res/values/attrs.xml:5 -->
  <public type="attr" name="bracketColor" id="0x03010000" />

  <!-- Declared at vendor/zowee/proprietary/framework/base/res/res/values/colors.xml:4 -->
  <public type="color" name="zui_common_default_hint" id="0x03030000" />
  <!-- Declared at vendor/zowee/proprietary/framework/base/res/res/values/colors.xml:6 -->
  <public type="color" name="zui_common_default_textcolor" id="0x03030001" />
  <!-- Declared at vendor/zowee/proprietary/framework/base/res/res/values/colors.xml:9 -->
  <public type="color" name="zui_common_activited_textcolor" id="0x03030002" />
</resources>

另外如果想作为私有的ID资源则可以放在values/symbols.xml中

<resources>
  <!-- We don't want to publish private symbols in com.mediatek.R as part of the
       SDK.  Instead, put them here. -->
  <private-symbols package="com.zowee.internal" />
  <java-symbol type="string" name="zowee_internal" />

</resources>

总结

经过以上步骤之后，可在所有的应用中通过android:text="@com.zowee:string/zowee"访问自定义的资源，在java代码中通过int z =com.zowee.R.string.zowee直接访问资源ID。
另附mtk提供的diff包，如果有什么不对的，可以对比查证
mtk提供的diff包

自定义framework资源apk

文章目录

前言

自定义framework资源的 packing&accessing

自定义资源的添加和访问

总结