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网站开发用什么配置电脑,上海高端seo公司,网站建设依循的原则,重点实验室网站建设的意义Rockchip平台Android应用预安装功能(基于Android13) 1. 预安装应用类型 Android上的应用预安装功能，主要是指配置产品时，根据厂商要求，将事先准备好的第三方应用预置进Android系统。预安装分为以下几种类型： 安装不可卸载应用安…

Rockchip平台Android应用预安装功能(基于Android13)

1. 预安装应用类型

Android上的应用预安装功能，主要是指配置产品时，根据厂商要求，将事先准备好的第三方应用预置进Android系统。预安装分为以下几种类型：

  1. 安装不可卸载应用
  2. 安装可永久卸载应用
  3. 安装卸载后恢复出厂设置后自动恢复的应用

2. 功能启用说明

2.1 配置和使用

在进行以下操作之前，首先需要输入命令 get_build_var TARGET_DEVICE_DIR 来找到对应的目标文件夹（比如 device/rockchip/rk3126c/）。

在目标文件夹下有三个文件夹，分别为：

  1. preinstall
  2. preinstall_del_forever
  3. preinstall_del

请将需要预置的应用放入对应的文件夹，注意apk文件名尽量使用英文，避免空格。

顺利的话，执行make之后会在$OUT/oem目录生成对应的文件夹：

  1. bundled_persist-app
  2. bundled_uninstall_gone-app
  3. bundled_uninstall_back-app

仍旧对应概述中的几种类型。在烧录后，系统会自动安装这些应用到对应目录。

注意：不支持带systemuid应用的预制，请使用Android原生方式编写mk文件。可参考vendor/rockchip/common/apps/RkDeviceTest/的集成方式。

2.2 编译结果

编译后配置文件将会输出到odm分区（$OUT/oem/），增加后请确认烧写了odm.img来使其生效。

3. 预编译脚本

预置应用编译脚本通过下面脚本完成

ifneq ($(strip $(TARGET_PRODUCT)), )$(shell python device/rockchip/common/auto_generator.py $(TARGET_DEVICE_DIR) preinstall bundled_persist-app $(TARGET_ARCH))$(shell python device/rockchip/common/auto_generator.py $(TARGET_DEVICE_DIR) preinstall_del bundled_uninstall_back-app $(TARGET_ARCH))$(shell python device/rockchip/common/auto_generator.py $(TARGET_DEVICE_DIR) preinstall_del_forever bundled_uninstall_gone-app $(TARGET_ARCH))-include $(TARGET_DEVICE_DIR)/preinstall/preinstall.mk-include $(TARGET_DEVICE_DIR)/preinstall_del/preinstall.mk-include $(TARGET_DEVICE_DIR)/preinstall_del_forever/preinstall.mk
endif

可以看到预置应用的Android.mk主要通过auto_generator.py完成

#!/usr/bin/env python
import sys
import os
import re
import zipfile
import shutil
import logging
import stringtemplet = """include $(CLEAR_VARS)
LOCAL_MODULE := %s
LOCAL_MODULE_CLASS := APPS
LOCAL_MODULE_PATH := $(TARGET_OUT_ODM)/%s
LOCAL_SRC_FILES := $(LOCAL_MODULE)$(COMMON_ANDROID_PACKAGE_SUFFIX)
LOCAL_CERTIFICATE := PRESIGNED
LOCAL_DEX_PREOPT := false
LOCAL_ENFORCE_USES_LIBRARIES := false
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
LOCAL_JNI_SHARED_LIBRARIES_ABI := %s
MY_LOCAL_PREBUILT_JNI_LIBS := %s
MY_APP_LIB_PATH := $(TARGET_OUT_ODM)/%s/$(LOCAL_MODULE)/lib/$(LOCAL_JNI_SHARED_LIBRARIES_ABI)
ifneq ($(LOCAL_JNI_SHARED_LIBRARIES_ABI), None)
$(warning MY_APP_LIB_PATH=$(MY_APP_LIB_PATH))
LOCAL_POST_INSTALL_CMD := \mkdir -p $(MY_APP_LIB_PATH) \$(foreach lib, $(MY_LOCAL_PREBUILT_JNI_LIBS), ; cp -f $(LOCAL_PATH)/$(lib) $(MY_APP_LIB_PATH)/$(notdir $(lib)))
endif
include $(BUILD_PREBUILT)"""copy_app_templet = """LOCAL_PATH := $(my-dir)
include $(CLEAR_VARS)
LOCAL_APK_NAME := %s
LOCAL_POST_PROCESS_COMMAND := $(shell mkdir -p $(TARGET_OUT_ODM)/%s/$(LOCAL_APK_NAME) && cp $(LOCAL_PATH)/$(LOCAL_APK_NAME).apk $(TARGET_OUT_ODM)/%s/$(LOCAL_APK_NAME)/)
"""def main(argv):preinstall_dir = os.path.join(argv[1],argv[2])if os.path.exists(preinstall_dir):#Use to include modulesisfound = 'not_found_lib'include_path = preinstall_dir + '/preinstall.mk'android_path = preinstall_dir + '/Android.mk'target_arch = argv[4]if os.path.exists(include_path):os.remove(include_path)if os.path.exists(android_path):os.remove(android_path)includefile = file(include_path, 'w')androidfile = file(android_path, 'w')androidfile.write("include $(call all-subdir-makefiles)\n\n")MY_LOCAL_PREBUILT_JNI_LIBS = '\\' + '\n'for root, dirs, files in os.walk(preinstall_dir):for file_name in files:p = re.compile(r'\S*(?=.apk\b)')found = p.search(file_name)if found:include_apk_path = preinstall_dir + '/' + found.group()makefile_path = include_apk_path + '/Android.mk'apk = preinstall_dir + '/' + found.group() + '.apk'try:zfile = zipfile.ZipFile(apk,'r')except:if os.path.exists(include_apk_path):shutil.rmtree(include_apk_path)os.makedirs(include_apk_path)apkpath = preinstall_dir + '/' + found.group() + '/'shutil.move(apk,apkpath)makefile = file(makefile_path,'w')makefile.write("LOCAL_PATH := $(my-dir)\n\n")makefile.write(templet % (found.group(),argv[3],'None',MY_LOCAL_PREBUILT_JNI_LIBS,argv[3]))continuefor lib_name in zfile.namelist():include_apklib_path = include_apk_path + '/lib' + '/arm'if os.path.exists(include_apk_path):shutil.rmtree(include_apk_path)os.makedirs(include_apklib_path)makefile = file(makefile_path,'w')makefile.write("LOCAL_PATH := $(my-dir)\n\n")apkpath = preinstall_dir + '/' + found.group() + '/'if target_arch == 'arm64':for lib_name in zfile.namelist():lib = re.compile(r'\A(lib/arm64-v8a/)+?')find_name = 'lib/arm64-v8a/'if lib_name.find(find_name) == -1:continuelibfound = lib.search(lib_name)if libfound:isfound = 'arm64-v8a'data = zfile.read(lib_name)string = lib_name.split(libfound.group())libfile = include_apklib_path + '/' + string[1]MY_LOCAL_PREBUILT_JNI_LIBS += '\t' + 'lib/arm64' + '/' + string[1] + '\\' + '\n'if (os.path.isdir(libfile)):continueelse:includelib = file(libfile, 'w')includelib.write(data)try:if cmp(isfound, 'not_found_lib'):include_apklib_path_arm64 = include_apk_path + '/lib/arm64'os.rename(include_apklib_path, include_apklib_path_arm64)except Exception as e:logging.warning('rename dir faild for:' + e)if not cmp(isfound,'not_found_lib'):for lib_name in zfile.namelist():lib = re.compile(r'\A(lib/armeabi-v7a/)+?')find_name = 'lib/armeabi-v7a/'#if not cmp(lib_name,find_name):#    continueif lib_name.find(find_name) == -1:continuelibfound = lib.search(lib_name)if libfound:isfound = 'armeabi-v7a'data = zfile.read(lib_name)string = lib_name.split(libfound.group())libfile = include_apklib_path + '/' + string[1]MY_LOCAL_PREBUILT_JNI_LIBS += '\t' + 'lib/arm' + '/' + string[1] + '\\' + '\n'if(os.path.isdir(libfile)):continueelse:includelib = file(libfile,'w')includelib.write(data)if not cmp(isfound,'not_found_lib'):for lib_name in zfile.namelist():lib = re.compile(r'\A(lib/armeabi/)+?')find_name = 'lib/armeabi/'#if not cmp(lib_name,find_name):#    continueif lib_name.find(find_name) == -1:continuelibfound = lib.search(lib_name)if libfound:data = zfile.read(lib_name)string = lib_name.split(libfound.group())libfile = include_apklib_path + '/' + string[1]MY_LOCAL_PREBUILT_JNI_LIBS += '\t' + 'lib/arm' + '/' + string[1] + '\\' + '\n'if(os.path.isdir(libfile)):continueelse:includelib = file(libfile,'w')includelib.write(data)tmp_jni_libs = '\\' + '\n'if not cmp(MY_LOCAL_PREBUILT_JNI_LIBS,tmp_jni_libs):nolibpath = preinstall_dir + '/' + found.group() + '/lib'shutil.rmtree(nolibpath)makefile.write(templet % (found.group(),argv[3],'None',MY_LOCAL_PREBUILT_JNI_LIBS,argv[3]))else:if isfound == 'arm64-v8a':makefile.write(templet % (found.group(),argv[3], 'arm64', MY_LOCAL_PREBUILT_JNI_LIBS,argv[3]))else:makefile.write(templet % (found.group(),argv[3],'arm',MY_LOCAL_PREBUILT_JNI_LIBS,argv[3]))shutil.move(apk,apkpath)isfound = 'not_found_lib'MY_LOCAL_PREBUILT_JNI_LIBS = '\\' + '\n'makefile.close()breakfor root, dirs,files in os.walk(preinstall_dir):for dir_file in dirs:includefile.write('PRODUCT_PACKAGES += %s\n' %dir_file)breakincludefile.close()if __name__=="__main__":main(sys.argv)

最终生成的Android.mk脚本如下：

LOCAL_PATH := $(my-dir)include $(CLEAR_VARS)
LOCAL_MODULE := MySysManager
LOCAL_MODULE_CLASS := APPS
LOCAL_MODULE_PATH := $(TARGET_OUT_ODM)/bundled_persist-app
LOCAL_SRC_FILES := $(LOCAL_MODULE)$(COMMON_ANDROID_PACKAGE_SUFFIX)
LOCAL_CERTIFICATE := PRESIGNED
LOCAL_DEX_PREOPT := false
LOCAL_ENFORCE_USES_LIBRARIES := false
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
LOCAL_JNI_SHARED_LIBRARIES_ABI := None
MY_LOCAL_PREBUILT_JNI_LIBS := \MY_APP_LIB_PATH := $(TARGET_OUT_ODM)/bundled_persist-app/$(LOCAL_MODULE)/lib/$(LOCAL_JNI_SHARED_LIBRARIES_ABI)
ifneq ($(LOCAL_JNI_SHARED_LIBRARIES_ABI), None)
$(warning MY_APP_LIB_PATH=$(MY_APP_LIB_PATH))
LOCAL_POST_INSTALL_CMD :=     mkdir -p $(MY_APP_LIB_PATH)     $(foreach lib, $(MY_LOCAL_PREBUILT_JNI_LIBS), ; cp -f $(LOCAL_PATH)/$(lib) $(MY_APP_LIB_PATH)/$(notdir $(lib)))
endif
include $(BUILD_PREBUILT)

PackageManagerService对预安装应用的处理

//PackageManagerService.javapublic static final String BUNDLED_PERSIST_DIR = "/odm/bundled_persist-app";public static final String BUNDLED_UNINSTALL_GONE_DIR = "/odm/bundled_uninstall_gone-app";//Environment.java
private static final File DIR_PREBUNDLED_UNINSTALL_BACK_ROOT = getDirectory(ENV_PREBUNDLED_UNINSTALL_BACK_ROOT, "/odm/bundled_uninstall_back-app");private static final File DIR_PREBUNDLED_UNINSTALL_GONE_ROOT = getDirectory(ENV_PREBUNDLED_UNINSTALL_GONE_ROOT, "/odm/bundled_uninstall_gone-app");//InitAppsHelper.javapublic void preinstallThirdPartyAPK(PackageParser2 packageParser, ExecutorService executorService,int scanFlags){preinstallPrebundledpersist(packageParser,executorService,scanFlags);preinstallPrebundledUninstallBack(packageParser,executorService,scanFlags);preinstallPrebundledUninstallGone(packageParser,executorService,scanFlags);}private void preinstallPrebundledpersist(PackageParser2 packageParser, ExecutorService executorService,int scanFlags){scanDirTracedLI(new File(mPm.BUNDLED_PERSIST_DIR),null,mPm.getDefParseFlags() | ParsingPackageUtils.PARSE_IS_SYSTEM_DIR| ParsingPackageUtils.PARSE_IS_PREINSTALL,scanFlags | mPm.SCAN_AS_PREINSTALL| SCAN_AS_SYSTEM,packageParser, executorService);}private void preinstallPrebundledUninstallBack(PackageParser2 packageParser, ExecutorService executorService,int scanFlags){scanDirTracedLI(Environment.getPrebundledUninstallBackDirectory(),null,mPm.getDefParseFlags() | ParsingPackageUtils.PARSE_IS_PREBUNDLED_DIR,scanFlags | mPm.SCAN_AS_PREBUNDLED_DIR,packageParser, executorService);}private void preinstallPrebundledUninstallGone(PackageParser2 packageParser, ExecutorService executorService,int scanFlags){scanDirTracedLI(Environment.getPrebundledUninstallGoneDirectory(),null,mPm.getDefParseFlags() | ParsingPackageUtils.PARSE_IS_PREBUNDLED_DIR,scanFlags | mPm.SCAN_AS_PREBUNDLED_DIR,packageParser, executorService);}

需要进一步了解预安装应用相关流程，请查看preinstallPrebundled相关代码流程。

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