前置條件：需要repo 出完整的版本原始碼。

以百度輸入法為例。

將百度輸入法apk檔案命名為baidushuru.apk，那麼在${lineageos_source_code}/packages/apps/目錄下新建一個baidushuru

目錄。並將baidushuru.apk放於此目錄下。並新建Android.mk檔案，並將baidushuru.apk檔案中的lib目錄放置於此目錄下。如圖：

其中Android.mk檔案內容如下：

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE := baidushuru

LOCAL_MODULE_TAGS := optional

LOCAL_CERTIFICATE := PRESIGNED

LOCAL_SRC_FILES := baidushuru.apk

LOCAL_MODULE_CLASS := APPS

#LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
LOCAL_MODULE_SUFFIX := .apk

#LOCAL_BUILT_MODULE_STEM := package.apk
LOCAL_MODULE_PATH   := $(PRODUCT_OUT)/system/app

 
#LOCAL_MODULE_PATH := $(TARGET_OUT)/app
 
#LOCAL_DEX_PREOPT := false
LOCAL_PREBUILT_JNI_LIBS := \
                                        @lib/armeabi-v7a/libBaiduSpeechSDK.so \
                                        @lib/armeabi-v7a/libbdinput_gif_v1_0_10.so \
                                        @lib/armeabi-v7a/libchiperencoder_v1_2_1.so \
                                        @lib/armeabi-v7a/libfire.so \
                                        @lib/armeabi-v7a/libime_graphics.so \
                                        @lib/armeabi-v7a/libmiuiblursdk.so \
                                        @lib/armeabi-v7a/libp.so \
                                        @lib/armeabi-v7a/libQt.so \
                                        @lib/armeabi-v7a/librsjni.so \
                                        @lib/armeabi-v7a/libRSSupport.so \
                                        @lib/armeabi-v7a/libsimeji_ime.so \
                                        @lib/armeabi-v7a/libvad.dnn.so \
                                        @lib/armeabi-v7a/libxcrash.so \
                                        @lib/armeabi-v7a/libxcrash_dumper.so \
                                        @lib/armeabi-v7a/libyoga.so \
                                        @lib/arm64-v8a/libBaiduSpeechSDK.so \
                                        @lib/arm64-v8a/libbdinput_gif_v1_0_10.so \
                                        @lib/arm64-v8a/libchiperencoder_v1_2_1.so \
                                        @lib/arm64-v8a/libfire.so \
                                        @lib/arm64-v8a/libime_graphics.so \
                                        @lib/arm64-v8a/libmiuiblursdk.so \
                                        @lib/arm64-v8a/libp.so \
                                        @lib/arm64-v8a/libQt.so \
                                        @lib/arm64-v8a/librsjni.so \
                                        @lib/arm64-v8a/libRSSupport.so \
                                        @lib/arm64-v8a/libsimeji_ime.so \
                                        @lib/arm64-v8a/libvad.dnn.so \
                                        @lib/arm64-v8a/libxcrash.so \
                                        @lib/arm64-v8a/libxcrash_dumper.so \
                                        @lib/arm64-v8a/libyoga.so \
include $(BUILD_PREBUILT)
 

LOCAL_PREBUILT_JNI_LIBS引數為lib檔案下的所有so名。我在弄內建微信時發現微信apk的so賊多，我寫了個指令碼方便直接複製貼上。

from array import array
from os import walk

mypath = "lib_path"

filenames = next(walk(mypath), (None, None, []))[2]

array = []

for i in filenames:
    # for armv7
    string = "                     @lib/armeabi-v7a/"  + i + " \\"
    array.append(string)
    pass

for i in array:
    print(i)