内置第三方apk总结

本篇集中说明第三方应用集成Android.bp 写法，以及怎么集成可卸载第三方应用。

Android.bp写法

签名

1. 自签名

android_app_import {
    name: "SogouInput",
    system_ext_specific: true,
    presigned: true,
    dex_preopt: {
        enabled: false,
    },
    apk: "SogouInput_android_oem_baoneng.apk",
}
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2. 系统签名

# system signal
android_app_import {
    name: "SogouInput",
    system_ext_specific: true,
    certificate: "platform",
    apk: "SogouInput_android_oem_baoneng.apk",
}
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集成位置

1. system/app

android_app_import {
    name: "SogouInput",
    presigned: true,
    dex_preopt: {
        enabled: false,
    },
    apk: "SogouInput_android_oem_baoneng.apk",
}
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2. system_ext/app

android_app_import {
    name: "SogouInput",
    system_ext_specific: true,
    presigned: true,
    dex_preopt: {
        enabled: false,
    },
    apk: "SogouInput_android_oem_baoneng.apk",
}
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3. system/pri-app

必须声明在permission白名单内。
aosp路径：frameworks/base/data/etc/privapp-permissions-platform.xml
手机路径：system/etc/permission/privapp-permission-platform.xml

android_app_import {
    name: "SogouInput",
    privileged: true,
    presigned: true,
    dex_preopt: {
        enabled: false,
    },
    apk: "SogouInput_android_oem_baoneng.apk",
}
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4. product/app

android_app_import {
    name: "SogouInput",
    product_specific: true,
    presigned: true,
    dex_preopt: {
        enabled: false,
    },
    apk: "SogouInput_android_oem_baoneng.apk",
}
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5. vendor/app

android_app_import {
    name: "SogouInput",
    proprietary: true,
    presigned: true,
    dex_preopt: {
        enabled: false,
    },
    apk: "SogouInput_android_oem_baoneng.apk",
}
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第三方可卸载apk集成方法

1. MTK 平台方案

• 将包名添加到配置文件（vendor\mediatek\proprietary\frameworks\base\data\etc\pms_sysapp_removable_system_list.txt）
• mk文件完成拷贝

// device/mediatek/common/device.mk
 ifneq ($(strip $(MTK_BASIC_PACKAGE)), yes)
+  PRODUCT_COPY_FILES += $(call add-to-product-copy-files-if-exists,vendor/mediatek/proprietary/frameworks/base/data/etc/pms_sysapp_grant_permission_list.txt:system/etc/permissions/pms_sysapp_grant_permission_list.txt)
   PRODUCT_COPY_FILES += $(call add-to-product-copy-files-if-exists,vendor/mediatek/proprietary/frameworks/base/data/etc/pms_sysapp_removable_system_list.txt:system/etc/permissions/pms_sysapp_removable_system_list.txt)
   PRODUCT_COPY_FILES += $(call add-to-product-copy-files-if-exists,vendor/mediatek/proprietary/frameworks/base/data/etc/pms_sysapp_removable_vendor_list.txt:$(TARGET_COPY_OUT_VENDOR)/etc/permissions/pms_sysapp_removable_vendor_list.txt)
 endif
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• 源码分析

// PMS中添加
if (sPmsExt.needSkipScanning(pkg, updatedPkg, ps, scanFile))
    return null;
//MtkSystemServiceFactory.makePmsExt()
//MtkSystemServiceFactoryImpl (vendor/mediatak/proprietary/frameworkes/base/.../)
// PmsExtImpl.java(vendor/mediatak/proprietary/frameworkes/base/.../)
 @Override
    public boolean needSkipScanning(PackageParser.Package pkg,
            PackageSetting updatedPkg, PackageSetting ps, File scanFile) {
       if (!mPms.isFirstBoot() &&
           (isRemovableSysApp(pkg.packageName) || locationIsOperator(scanFile)) &&
           (ps == null && updatedPkg == null)) {
            if (mPms.isUpgrade()) {
                if (isRemovableSysApp(pkg.packageName)
                        && !sRemovableSystemAppSetBak.contains(pkg.packageName)) {
                    Slog.d(TAG, "New added removable sys app by OTA:" + pkg.packageName);
                    return false;
                }
                if (locationIsOperator(scanFile)
                        && sUpgradeOperAppSet.contains(pkg.packageName)
                        && !sUpgradeOperAppSetBak.contains(pkg.packageName)) {
                    Slog.d(TAG, "New added operator app by OTA:" + pkg.packageName);
                    return false;
                }
            }
           Slog.d(TAG, "Skip scanning uninstalled sys package " + pkg.packageName);
           return true;
       } else if (ps == null && updatedPkg != null) {
           Slog.d(TAG, "Skip scanning uninstalled package: " + pkg.packageName);
           return true;
       }
 
       return false;
    }
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2. 使用脚本方式安装
   使用脚本的方式

参考

1. 权限配置